Package: zenoh Version: 1.2.0 Architecture: amd64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 41 Depends: zenoh-plugin-rest (=1.2.0), zenoh-plugin-storage-manager (=1.2.0), zenohd (=1.2.0) Filename: 1.2.0/zenoh_1.2.0_amd64.deb Size: 17456 MD5sum: a3f38f57eb1cd6d96e78add1fee5a035 SHA1: c2e808db54cae205029c3ff2d10e48b54dfcb666 SHA256: 86f7e9b31df59706c66a2a0df6a96646b10ad3d87b9b8795a5b409ece7020af1 Section: net Priority: optional Homepage: http://zenoh.io Description: Zenoh: The Zero Overhead Pub/Sub/Query Protocol. . [![CI](https://github.com/eclipse-zenoh/zenoh/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/eclipse-zenoh/zenoh/actions?query=workflow%3ACI+branch%3Amain++) [![Documentation Status](https://readthedocs.org/projects/zenoh-rust/badge/?version=latest)](https://zenoh-rust.readthedocs.io/en/latest/?badge=latest) [![Discussion](https://img.shields.io/badge/discussion-on%20github-blue)](https://github.com/eclipse-zenoh/roadmap/discussions) [![Discord](https://img.shields.io/badge/chat-on%20discord-blue)](https://discord.gg/2GJ958VuHs) [![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) . # Eclipse Zenoh . The Eclipse Zenoh: Zero Overhead Pub/sub, Store/Query and Compute. . Zenoh (pronounce _/zeno/_) unifies data in motion, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks. . Check the website [zenoh.io](http://zenoh.io) and the [roadmap](https://github.com/eclipse-zenoh/roadmap) for more detailed information. . ------------------------------- . ## Getting Started . Zenoh is extremely easy to learn, the best place to master the fundamentals is our [getting started guide](https://zenoh.io/docs/getting-started/first-app/). . ------------------------------- . ## How to install it . To install the latest release of the Zenoh router (`zenohd`) and its default plugins (REST API plugin and Storages Manager plugin) you can do as follows: . ### Manual installation (all platforms) . All release packages can be downloaded from [https://download.eclipse.org/zenoh/zenoh/latest/](https://download.eclipse.org/zenoh/zenoh/latest/). . Each subdirectory has the name of the Rust target. See the platforms each target corresponds to on [https://doc.rust-lang.org/stable/rustc/platform-support.html](https://doc.rust-lang.org/stable/rustc/platform-support.html). . Choose your platform and download the `.zip` file. Unzip it where you want, and run the extracted `zenohd` binary. . ### Linux Debian . Add Eclipse Zenoh private repository to the sources list, and install the `zenoh` package: . ```bash echo "deb [trusted=yes] https://download.eclipse.org/zenoh/debian-repo/ /" | sudo tee -a /etc/apt/sources.list.d/zenoh.list > /dev/null sudo apt update sudo apt install zenoh ``` . Then you can start run `zenohd`. . ### MacOS . Tap our brew package repository and install the `zenoh` formula: . ```bash brew tap eclipse-zenoh/homebrew-zenoh brew install zenoh ``` . Then you can start run `zenohd`. . ------------------------------- . ## Rust API . * [Docs.rs for Zenoh](https://docs.rs/zenoh/latest/zenoh/) . ------------------------------- . ## How to build it . > [!WARNING] > Zenoh and its ecosystem are under active development. When you build from git, make sure you also build from git any other Zenoh repository you plan to use (e.g. binding, plugin, backend, etc.). It may happen that some changes in git are not compatible with the most recent packaged Zenoh release (e.g. deb, docker, pip). We put particular effort in maintaining compatibility between the various git repositories in the Zenoh project. . Install [Cargo and Rust](https://doc.rust-lang.org/cargo/getting-started/installation.html). Zenoh can be successfully compiled with Rust stable (>= 1.75.0), so no special configuration is required from your side. If you already have the Rust toolchain installed, make sure it is up-to-date with: . ```bash rustup update ``` . To build Zenoh, just type the following command after having followed the previous instructions: . ```bash cargo build --release --all-targets ``` . Zenoh's router is built as `target/release/zenohd`. All the examples are built into the `target/release/examples` directory. They can all work in peer-to-peer, or interconnected via the zenoh router. . ------------------------------- . ## Quick tests of your build . ### Peer-to-peer tests . * **pub/sub** * run: `./target/release/examples/z_sub` * in another shell run: `./target/release/examples/z_put` * the subscriber should receive the publication. . * **get/queryable** * run: `./target/release/examples/z_queryable` * in another shell run: `./target/release/examples/z_get` * the queryable should display the log in its listener, and the get should receive the queryable result. . ### Routed tests . > [!NOTE] > **Windows users**: to properly execute the commands below in PowerShell you need to escape `"` characters as `\"`. . * **put / store / get** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell run: . ```sh ./target/release/examples/z_put` ``` . * then run . ```sh ./target/release/examples/z_get ``` . * the get should receive the stored publication. . * **REST API using `curl` tool** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, do a publication via the REST API: . ```sh curl -X PUT -d '"Hello World!"' http://localhost:8000/demo/example/test ``` . * get it back via the REST API: . ```sh curl http://localhost:8000/demo/example/test ``` . * **router admin space via the REST API** * run the Zenoh router with permission to perform config changes via the admin space, and with a memory storage: . ```sh ./target/release/zenohd --rest-http-port=8000 --adminspace-permissions=rw --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, get info of the zenoh router via the zenoh admin space (you may use `jq` for pretty json formatting): . ```sh curl -s http://localhost:8000/@/local/router | jq ``` . * get the volumes of the router (only memory by default): . ```sh curl -s 'http://localhost:8000/@/local/router/**/volumes/*' | jq ``` . * get the storages of the local router (the memory storage configured at startup on '/demo/example/**' should be present): . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . * add another memory storage on `/demo/mystore/**`: . ```sh curl -X PUT -H 'content-type:application/json' -d '{"key_expr":"demo/mystore/**","volume":"memory"}' http://localhost:8000/@/local/router/config/plugins/storage_manager/storages/mystore ``` . * check it has been created: . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . ### Configuration options . A Zenoh configuration file can be provided via CLI to all Zenoh examples and the Zenoh router. . * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file and the available options. . See other examples of Zenoh usage in [examples/](examples) . > [!NOTE] > **Zenoh Runtime Configuration**: Starting from version 0.11.0-rc, Zenoh allows for configuring the number of worker threads and other advanced options of the runtime. For guidance on utilizing it, please refer to the [doc](https://docs.rs/zenoh-runtime/latest/zenoh_runtime/enum.ZRuntime.html). . ------------------------------- . ## Zenoh router command line arguments . `zenohd` accepts the following arguments: . * `--adminspace-permissions <[r|w|rw|none]>`: Configure the read and/or write permissions on the admin space. Default is read only. * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file. All properties of this configuration are optional, so you may not need such a large configuration for your use-case. * `--cfg :`: allows you to change specific parts of the configuration right after it has been constructed. VALUE must be a valid JSON5 value, and key must be a path through the configuration file, where each element is separated by a `/`. When inserting in parts of the config that are arrays, you may use indexes, or may use `+` to indicate that you want to append your value to the array. `--cfg` passed values will always override any previously existing value for their key in the configuration. * `-l, --listen ...`: An endpoint on which this router will listen for incoming sessions. Repeat this option to open several listeners. By default, `tcp/[::]:7447` is used. The following endpoints are currently supported: * TCP: `tcp/:` * UDP: `udp/:` * [TCP+TLS](https://zenoh.io/docs/manual/tls/): `tls/:` * [QUIC](https://zenoh.io/docs/manual/quic/): `quic/:` * `-e, --connect ...`: An endpoint this router will try to connect to. Repeat this option to connect to several peers or routers. * `--no-multicast-scouting`: By default zenohd replies to multicast scouting messages for being discovered by peers and clients. This option disables this feature. * `-i, --id `: The identifier (as an hexadecimal string - e.g.: A0B23...) that zenohd must use. **WARNING**: this identifier must be unique in the system! If not set, a random unsigned 128bit integer will be used. * `--no-timestamp`: By default zenohd adds a HLC-generated Timestamp to each routed Data if there isn't already one. This option disables this feature. * `-P, --plugin [ | :]...`: A [plugin](https://zenoh.io/docs/manual/plugins/) that must be loaded. Accepted values: * a plugin name; zenohd will search for a library named `libzenoh_plugin_.so` on Unix, `libzenoh_plugin_.dylib` on MacOS or `zenoh_plugin_.dll` on Windows. * `":"`; the plugin will be loaded from library file at ``. . Repeat this option to load several plugins. * `--plugin-search-dir ...`: A directory where to search for [plugins](https://zenoh.io/docs/manual/plugins/) libraries to load. Repeat this option to specify several search directories'. By default, the plugins libraries will be searched in: `'/usr/local/lib:/usr/lib:~/.zenoh/lib:.'` * `--rest-http-port `: Configures the [REST plugin](https://zenoh.io/docs/manual/plugin-http/)'s HTTP port. Accepted values: * a port number * a string with format `:` (to bind the HTTP server to a specific interface) * `"None"` to deactivate the REST plugin . If not specified, the REST plugin will be active on any interface (`[::]`) and port `8000`. . ------------------------------- . ## Plugins . > [!WARNING] > As Rust doesn't have a stable ABI, the plugins should be built with the exact same Rust version as `zenohd`, and using for `zenoh` dependency the same version (or commit number) as `zenohd` with the same set of features. A plugin compiled with different Rust version or with different set of `zenoh` crate features will be rejected when `zenohd` attempts to load it. Otherwise, incompatibilities in memory mapping of structures shared between `zenohd` and the library could lead to a `"SIGSEGV"` crash. . By default the Zenoh router is delivered or built with 2 plugins. These may be configured through a configuration file, or through individual changes to the configuration via the `--cfg` CLI option or via zenoh puts on individual parts of the configuration. . > [!WARNING] > Since `v0.6`, `zenohd` no longer loads every available plugin at startup. Instead, only configured plugins are loaded (after processing `--cfg` and `--plugin` options). Once `zenohd` is running, plugins can be hot-loaded and, if they support it, reconfigured at runtime by editing their configuration through the adminspace. . **[REST plugin](https://zenoh.io/docs/manual/plugin-http/)** (exposing a REST API): This plugin converts GET and PUT REST requests into Zenoh gets and puts respectively. . Note that to activate the REST plugin on `zenohd` the CLI argument should be passed: `--rest-http-port=8000` (or any other port of your choice). . **[Storages plugin](https://zenoh.io/docs/manual/plugin-storage-manager/)** (managing [backends and storages](https://zenoh.io/docs/manual/plugin-storage-manager/#backends-and-volumes)) This plugin allows you to easily define storages. These will store key-value pairs they subscribed to, and send the most recent ones when queried. Check out [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) for info on how to configure them. . ------------------------------- . ## Troubleshooting . In case of troubles, please first check on [this page](https://zenoh.io/docs/getting-started/troubleshooting/) if the trouble and cause are already known. Otherwise, you can ask a question on the [zenoh Discord server](https://discord.gg/vSDSpqnbkm), or [create an issue](https://github.com/eclipse-zenoh/zenoh/issues). Package: zenoh Version: 1.2.0 Architecture: armel Maintainer: zenoh-dev@eclipse.org Installed-Size: 41 Depends: zenoh-plugin-rest (=1.2.0), zenoh-plugin-storage-manager (=1.2.0), zenohd (=1.2.0) Filename: 1.2.0/zenoh_1.2.0_armel.deb Size: 17456 MD5sum: 6be49e92140dd9f8453bca6ac3fe346f SHA1: fca0076e1c13c041aec29d3aa3d5498c9f7ca468 SHA256: 9a6dbdcc8ecc051af34bd13f5447fa3f0f634bde7cff4796e063639cd20dfc7c Section: net Priority: optional Homepage: http://zenoh.io Description: Zenoh: The Zero Overhead Pub/Sub/Query Protocol. . [![CI](https://github.com/eclipse-zenoh/zenoh/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/eclipse-zenoh/zenoh/actions?query=workflow%3ACI+branch%3Amain++) [![Documentation Status](https://readthedocs.org/projects/zenoh-rust/badge/?version=latest)](https://zenoh-rust.readthedocs.io/en/latest/?badge=latest) [![Discussion](https://img.shields.io/badge/discussion-on%20github-blue)](https://github.com/eclipse-zenoh/roadmap/discussions) [![Discord](https://img.shields.io/badge/chat-on%20discord-blue)](https://discord.gg/2GJ958VuHs) [![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) . # Eclipse Zenoh . The Eclipse Zenoh: Zero Overhead Pub/sub, Store/Query and Compute. . Zenoh (pronounce _/zeno/_) unifies data in motion, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks. . Check the website [zenoh.io](http://zenoh.io) and the [roadmap](https://github.com/eclipse-zenoh/roadmap) for more detailed information. . ------------------------------- . ## Getting Started . Zenoh is extremely easy to learn, the best place to master the fundamentals is our [getting started guide](https://zenoh.io/docs/getting-started/first-app/). . ------------------------------- . ## How to install it . To install the latest release of the Zenoh router (`zenohd`) and its default plugins (REST API plugin and Storages Manager plugin) you can do as follows: . ### Manual installation (all platforms) . All release packages can be downloaded from [https://download.eclipse.org/zenoh/zenoh/latest/](https://download.eclipse.org/zenoh/zenoh/latest/). . Each subdirectory has the name of the Rust target. See the platforms each target corresponds to on [https://doc.rust-lang.org/stable/rustc/platform-support.html](https://doc.rust-lang.org/stable/rustc/platform-support.html). . Choose your platform and download the `.zip` file. Unzip it where you want, and run the extracted `zenohd` binary. . ### Linux Debian . Add Eclipse Zenoh private repository to the sources list, and install the `zenoh` package: . ```bash echo "deb [trusted=yes] https://download.eclipse.org/zenoh/debian-repo/ /" | sudo tee -a /etc/apt/sources.list.d/zenoh.list > /dev/null sudo apt update sudo apt install zenoh ``` . Then you can start run `zenohd`. . ### MacOS . Tap our brew package repository and install the `zenoh` formula: . ```bash brew tap eclipse-zenoh/homebrew-zenoh brew install zenoh ``` . Then you can start run `zenohd`. . ------------------------------- . ## Rust API . * [Docs.rs for Zenoh](https://docs.rs/zenoh/latest/zenoh/) . ------------------------------- . ## How to build it . > [!WARNING] > Zenoh and its ecosystem are under active development. When you build from git, make sure you also build from git any other Zenoh repository you plan to use (e.g. binding, plugin, backend, etc.). It may happen that some changes in git are not compatible with the most recent packaged Zenoh release (e.g. deb, docker, pip). We put particular effort in maintaining compatibility between the various git repositories in the Zenoh project. . Install [Cargo and Rust](https://doc.rust-lang.org/cargo/getting-started/installation.html). Zenoh can be successfully compiled with Rust stable (>= 1.75.0), so no special configuration is required from your side. If you already have the Rust toolchain installed, make sure it is up-to-date with: . ```bash rustup update ``` . To build Zenoh, just type the following command after having followed the previous instructions: . ```bash cargo build --release --all-targets ``` . Zenoh's router is built as `target/release/zenohd`. All the examples are built into the `target/release/examples` directory. They can all work in peer-to-peer, or interconnected via the zenoh router. . ------------------------------- . ## Quick tests of your build . ### Peer-to-peer tests . * **pub/sub** * run: `./target/release/examples/z_sub` * in another shell run: `./target/release/examples/z_put` * the subscriber should receive the publication. . * **get/queryable** * run: `./target/release/examples/z_queryable` * in another shell run: `./target/release/examples/z_get` * the queryable should display the log in its listener, and the get should receive the queryable result. . ### Routed tests . > [!NOTE] > **Windows users**: to properly execute the commands below in PowerShell you need to escape `"` characters as `\"`. . * **put / store / get** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell run: . ```sh ./target/release/examples/z_put` ``` . * then run . ```sh ./target/release/examples/z_get ``` . * the get should receive the stored publication. . * **REST API using `curl` tool** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, do a publication via the REST API: . ```sh curl -X PUT -d '"Hello World!"' http://localhost:8000/demo/example/test ``` . * get it back via the REST API: . ```sh curl http://localhost:8000/demo/example/test ``` . * **router admin space via the REST API** * run the Zenoh router with permission to perform config changes via the admin space, and with a memory storage: . ```sh ./target/release/zenohd --rest-http-port=8000 --adminspace-permissions=rw --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, get info of the zenoh router via the zenoh admin space (you may use `jq` for pretty json formatting): . ```sh curl -s http://localhost:8000/@/local/router | jq ``` . * get the volumes of the router (only memory by default): . ```sh curl -s 'http://localhost:8000/@/local/router/**/volumes/*' | jq ``` . * get the storages of the local router (the memory storage configured at startup on '/demo/example/**' should be present): . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . * add another memory storage on `/demo/mystore/**`: . ```sh curl -X PUT -H 'content-type:application/json' -d '{"key_expr":"demo/mystore/**","volume":"memory"}' http://localhost:8000/@/local/router/config/plugins/storage_manager/storages/mystore ``` . * check it has been created: . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . ### Configuration options . A Zenoh configuration file can be provided via CLI to all Zenoh examples and the Zenoh router. . * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file and the available options. . See other examples of Zenoh usage in [examples/](examples) . > [!NOTE] > **Zenoh Runtime Configuration**: Starting from version 0.11.0-rc, Zenoh allows for configuring the number of worker threads and other advanced options of the runtime. For guidance on utilizing it, please refer to the [doc](https://docs.rs/zenoh-runtime/latest/zenoh_runtime/enum.ZRuntime.html). . ------------------------------- . ## Zenoh router command line arguments . `zenohd` accepts the following arguments: . * `--adminspace-permissions <[r|w|rw|none]>`: Configure the read and/or write permissions on the admin space. Default is read only. * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file. All properties of this configuration are optional, so you may not need such a large configuration for your use-case. * `--cfg :`: allows you to change specific parts of the configuration right after it has been constructed. VALUE must be a valid JSON5 value, and key must be a path through the configuration file, where each element is separated by a `/`. When inserting in parts of the config that are arrays, you may use indexes, or may use `+` to indicate that you want to append your value to the array. `--cfg` passed values will always override any previously existing value for their key in the configuration. * `-l, --listen ...`: An endpoint on which this router will listen for incoming sessions. Repeat this option to open several listeners. By default, `tcp/[::]:7447` is used. The following endpoints are currently supported: * TCP: `tcp/:` * UDP: `udp/:` * [TCP+TLS](https://zenoh.io/docs/manual/tls/): `tls/:` * [QUIC](https://zenoh.io/docs/manual/quic/): `quic/:` * `-e, --connect ...`: An endpoint this router will try to connect to. Repeat this option to connect to several peers or routers. * `--no-multicast-scouting`: By default zenohd replies to multicast scouting messages for being discovered by peers and clients. This option disables this feature. * `-i, --id `: The identifier (as an hexadecimal string - e.g.: A0B23...) that zenohd must use. **WARNING**: this identifier must be unique in the system! If not set, a random unsigned 128bit integer will be used. * `--no-timestamp`: By default zenohd adds a HLC-generated Timestamp to each routed Data if there isn't already one. This option disables this feature. * `-P, --plugin [ | :]...`: A [plugin](https://zenoh.io/docs/manual/plugins/) that must be loaded. Accepted values: * a plugin name; zenohd will search for a library named `libzenoh_plugin_.so` on Unix, `libzenoh_plugin_.dylib` on MacOS or `zenoh_plugin_.dll` on Windows. * `":"`; the plugin will be loaded from library file at ``. . Repeat this option to load several plugins. * `--plugin-search-dir ...`: A directory where to search for [plugins](https://zenoh.io/docs/manual/plugins/) libraries to load. Repeat this option to specify several search directories'. By default, the plugins libraries will be searched in: `'/usr/local/lib:/usr/lib:~/.zenoh/lib:.'` * `--rest-http-port `: Configures the [REST plugin](https://zenoh.io/docs/manual/plugin-http/)'s HTTP port. Accepted values: * a port number * a string with format `:` (to bind the HTTP server to a specific interface) * `"None"` to deactivate the REST plugin . If not specified, the REST plugin will be active on any interface (`[::]`) and port `8000`. . ------------------------------- . ## Plugins . > [!WARNING] > As Rust doesn't have a stable ABI, the plugins should be built with the exact same Rust version as `zenohd`, and using for `zenoh` dependency the same version (or commit number) as `zenohd` with the same set of features. A plugin compiled with different Rust version or with different set of `zenoh` crate features will be rejected when `zenohd` attempts to load it. Otherwise, incompatibilities in memory mapping of structures shared between `zenohd` and the library could lead to a `"SIGSEGV"` crash. . By default the Zenoh router is delivered or built with 2 plugins. These may be configured through a configuration file, or through individual changes to the configuration via the `--cfg` CLI option or via zenoh puts on individual parts of the configuration. . > [!WARNING] > Since `v0.6`, `zenohd` no longer loads every available plugin at startup. Instead, only configured plugins are loaded (after processing `--cfg` and `--plugin` options). Once `zenohd` is running, plugins can be hot-loaded and, if they support it, reconfigured at runtime by editing their configuration through the adminspace. . **[REST plugin](https://zenoh.io/docs/manual/plugin-http/)** (exposing a REST API): This plugin converts GET and PUT REST requests into Zenoh gets and puts respectively. . Note that to activate the REST plugin on `zenohd` the CLI argument should be passed: `--rest-http-port=8000` (or any other port of your choice). . **[Storages plugin](https://zenoh.io/docs/manual/plugin-storage-manager/)** (managing [backends and storages](https://zenoh.io/docs/manual/plugin-storage-manager/#backends-and-volumes)) This plugin allows you to easily define storages. These will store key-value pairs they subscribed to, and send the most recent ones when queried. Check out [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) for info on how to configure them. . ------------------------------- . ## Troubleshooting . In case of troubles, please first check on [this page](https://zenoh.io/docs/getting-started/troubleshooting/) if the trouble and cause are already known. Otherwise, you can ask a question on the [zenoh Discord server](https://discord.gg/vSDSpqnbkm), or [create an issue](https://github.com/eclipse-zenoh/zenoh/issues). Package: zenoh Version: 1.2.0 Architecture: arm64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 41 Depends: zenoh-plugin-rest (=1.2.0), zenoh-plugin-storage-manager (=1.2.0), zenohd (=1.2.0) Filename: 1.2.0/zenoh_1.2.0_arm64.deb Size: 17456 MD5sum: 073745e37379bcdc2c42293440d64110 SHA1: 1f9537d0e0dbc6c4859d1de5fae077f1b8332a11 SHA256: 7efda1ad2a7385adb4e4831ba45141ca9a85f35761e8af1a95913dfe09511abf Section: net Priority: optional Homepage: http://zenoh.io Description: Zenoh: The Zero Overhead Pub/Sub/Query Protocol. . [![CI](https://github.com/eclipse-zenoh/zenoh/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/eclipse-zenoh/zenoh/actions?query=workflow%3ACI+branch%3Amain++) [![Documentation Status](https://readthedocs.org/projects/zenoh-rust/badge/?version=latest)](https://zenoh-rust.readthedocs.io/en/latest/?badge=latest) [![Discussion](https://img.shields.io/badge/discussion-on%20github-blue)](https://github.com/eclipse-zenoh/roadmap/discussions) [![Discord](https://img.shields.io/badge/chat-on%20discord-blue)](https://discord.gg/2GJ958VuHs) [![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) . # Eclipse Zenoh . The Eclipse Zenoh: Zero Overhead Pub/sub, Store/Query and Compute. . Zenoh (pronounce _/zeno/_) unifies data in motion, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks. . Check the website [zenoh.io](http://zenoh.io) and the [roadmap](https://github.com/eclipse-zenoh/roadmap) for more detailed information. . ------------------------------- . ## Getting Started . Zenoh is extremely easy to learn, the best place to master the fundamentals is our [getting started guide](https://zenoh.io/docs/getting-started/first-app/). . ------------------------------- . ## How to install it . To install the latest release of the Zenoh router (`zenohd`) and its default plugins (REST API plugin and Storages Manager plugin) you can do as follows: . ### Manual installation (all platforms) . All release packages can be downloaded from [https://download.eclipse.org/zenoh/zenoh/latest/](https://download.eclipse.org/zenoh/zenoh/latest/). . Each subdirectory has the name of the Rust target. See the platforms each target corresponds to on [https://doc.rust-lang.org/stable/rustc/platform-support.html](https://doc.rust-lang.org/stable/rustc/platform-support.html). . Choose your platform and download the `.zip` file. Unzip it where you want, and run the extracted `zenohd` binary. . ### Linux Debian . Add Eclipse Zenoh private repository to the sources list, and install the `zenoh` package: . ```bash echo "deb [trusted=yes] https://download.eclipse.org/zenoh/debian-repo/ /" | sudo tee -a /etc/apt/sources.list.d/zenoh.list > /dev/null sudo apt update sudo apt install zenoh ``` . Then you can start run `zenohd`. . ### MacOS . Tap our brew package repository and install the `zenoh` formula: . ```bash brew tap eclipse-zenoh/homebrew-zenoh brew install zenoh ``` . Then you can start run `zenohd`. . ------------------------------- . ## Rust API . * [Docs.rs for Zenoh](https://docs.rs/zenoh/latest/zenoh/) . ------------------------------- . ## How to build it . > [!WARNING] > Zenoh and its ecosystem are under active development. When you build from git, make sure you also build from git any other Zenoh repository you plan to use (e.g. binding, plugin, backend, etc.). It may happen that some changes in git are not compatible with the most recent packaged Zenoh release (e.g. deb, docker, pip). We put particular effort in maintaining compatibility between the various git repositories in the Zenoh project. . Install [Cargo and Rust](https://doc.rust-lang.org/cargo/getting-started/installation.html). Zenoh can be successfully compiled with Rust stable (>= 1.75.0), so no special configuration is required from your side. If you already have the Rust toolchain installed, make sure it is up-to-date with: . ```bash rustup update ``` . To build Zenoh, just type the following command after having followed the previous instructions: . ```bash cargo build --release --all-targets ``` . Zenoh's router is built as `target/release/zenohd`. All the examples are built into the `target/release/examples` directory. They can all work in peer-to-peer, or interconnected via the zenoh router. . ------------------------------- . ## Quick tests of your build . ### Peer-to-peer tests . * **pub/sub** * run: `./target/release/examples/z_sub` * in another shell run: `./target/release/examples/z_put` * the subscriber should receive the publication. . * **get/queryable** * run: `./target/release/examples/z_queryable` * in another shell run: `./target/release/examples/z_get` * the queryable should display the log in its listener, and the get should receive the queryable result. . ### Routed tests . > [!NOTE] > **Windows users**: to properly execute the commands below in PowerShell you need to escape `"` characters as `\"`. . * **put / store / get** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell run: . ```sh ./target/release/examples/z_put` ``` . * then run . ```sh ./target/release/examples/z_get ``` . * the get should receive the stored publication. . * **REST API using `curl` tool** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, do a publication via the REST API: . ```sh curl -X PUT -d '"Hello World!"' http://localhost:8000/demo/example/test ``` . * get it back via the REST API: . ```sh curl http://localhost:8000/demo/example/test ``` . * **router admin space via the REST API** * run the Zenoh router with permission to perform config changes via the admin space, and with a memory storage: . ```sh ./target/release/zenohd --rest-http-port=8000 --adminspace-permissions=rw --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, get info of the zenoh router via the zenoh admin space (you may use `jq` for pretty json formatting): . ```sh curl -s http://localhost:8000/@/local/router | jq ``` . * get the volumes of the router (only memory by default): . ```sh curl -s 'http://localhost:8000/@/local/router/**/volumes/*' | jq ``` . * get the storages of the local router (the memory storage configured at startup on '/demo/example/**' should be present): . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . * add another memory storage on `/demo/mystore/**`: . ```sh curl -X PUT -H 'content-type:application/json' -d '{"key_expr":"demo/mystore/**","volume":"memory"}' http://localhost:8000/@/local/router/config/plugins/storage_manager/storages/mystore ``` . * check it has been created: . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . ### Configuration options . A Zenoh configuration file can be provided via CLI to all Zenoh examples and the Zenoh router. . * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file and the available options. . See other examples of Zenoh usage in [examples/](examples) . > [!NOTE] > **Zenoh Runtime Configuration**: Starting from version 0.11.0-rc, Zenoh allows for configuring the number of worker threads and other advanced options of the runtime. For guidance on utilizing it, please refer to the [doc](https://docs.rs/zenoh-runtime/latest/zenoh_runtime/enum.ZRuntime.html). . ------------------------------- . ## Zenoh router command line arguments . `zenohd` accepts the following arguments: . * `--adminspace-permissions <[r|w|rw|none]>`: Configure the read and/or write permissions on the admin space. Default is read only. * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file. All properties of this configuration are optional, so you may not need such a large configuration for your use-case. * `--cfg :`: allows you to change specific parts of the configuration right after it has been constructed. VALUE must be a valid JSON5 value, and key must be a path through the configuration file, where each element is separated by a `/`. When inserting in parts of the config that are arrays, you may use indexes, or may use `+` to indicate that you want to append your value to the array. `--cfg` passed values will always override any previously existing value for their key in the configuration. * `-l, --listen ...`: An endpoint on which this router will listen for incoming sessions. Repeat this option to open several listeners. By default, `tcp/[::]:7447` is used. The following endpoints are currently supported: * TCP: `tcp/:` * UDP: `udp/:` * [TCP+TLS](https://zenoh.io/docs/manual/tls/): `tls/:` * [QUIC](https://zenoh.io/docs/manual/quic/): `quic/:` * `-e, --connect ...`: An endpoint this router will try to connect to. Repeat this option to connect to several peers or routers. * `--no-multicast-scouting`: By default zenohd replies to multicast scouting messages for being discovered by peers and clients. This option disables this feature. * `-i, --id `: The identifier (as an hexadecimal string - e.g.: A0B23...) that zenohd must use. **WARNING**: this identifier must be unique in the system! If not set, a random unsigned 128bit integer will be used. * `--no-timestamp`: By default zenohd adds a HLC-generated Timestamp to each routed Data if there isn't already one. This option disables this feature. * `-P, --plugin [ | :]...`: A [plugin](https://zenoh.io/docs/manual/plugins/) that must be loaded. Accepted values: * a plugin name; zenohd will search for a library named `libzenoh_plugin_.so` on Unix, `libzenoh_plugin_.dylib` on MacOS or `zenoh_plugin_.dll` on Windows. * `":"`; the plugin will be loaded from library file at ``. . Repeat this option to load several plugins. * `--plugin-search-dir ...`: A directory where to search for [plugins](https://zenoh.io/docs/manual/plugins/) libraries to load. Repeat this option to specify several search directories'. By default, the plugins libraries will be searched in: `'/usr/local/lib:/usr/lib:~/.zenoh/lib:.'` * `--rest-http-port `: Configures the [REST plugin](https://zenoh.io/docs/manual/plugin-http/)'s HTTP port. Accepted values: * a port number * a string with format `:` (to bind the HTTP server to a specific interface) * `"None"` to deactivate the REST plugin . If not specified, the REST plugin will be active on any interface (`[::]`) and port `8000`. . ------------------------------- . ## Plugins . > [!WARNING] > As Rust doesn't have a stable ABI, the plugins should be built with the exact same Rust version as `zenohd`, and using for `zenoh` dependency the same version (or commit number) as `zenohd` with the same set of features. A plugin compiled with different Rust version or with different set of `zenoh` crate features will be rejected when `zenohd` attempts to load it. Otherwise, incompatibilities in memory mapping of structures shared between `zenohd` and the library could lead to a `"SIGSEGV"` crash. . By default the Zenoh router is delivered or built with 2 plugins. These may be configured through a configuration file, or through individual changes to the configuration via the `--cfg` CLI option or via zenoh puts on individual parts of the configuration. . > [!WARNING] > Since `v0.6`, `zenohd` no longer loads every available plugin at startup. Instead, only configured plugins are loaded (after processing `--cfg` and `--plugin` options). Once `zenohd` is running, plugins can be hot-loaded and, if they support it, reconfigured at runtime by editing their configuration through the adminspace. . **[REST plugin](https://zenoh.io/docs/manual/plugin-http/)** (exposing a REST API): This plugin converts GET and PUT REST requests into Zenoh gets and puts respectively. . Note that to activate the REST plugin on `zenohd` the CLI argument should be passed: `--rest-http-port=8000` (or any other port of your choice). . **[Storages plugin](https://zenoh.io/docs/manual/plugin-storage-manager/)** (managing [backends and storages](https://zenoh.io/docs/manual/plugin-storage-manager/#backends-and-volumes)) This plugin allows you to easily define storages. These will store key-value pairs they subscribed to, and send the most recent ones when queried. Check out [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) for info on how to configure them. . ------------------------------- . ## Troubleshooting . In case of troubles, please first check on [this page](https://zenoh.io/docs/getting-started/troubleshooting/) if the trouble and cause are already known. Otherwise, you can ask a question on the [zenoh Discord server](https://discord.gg/vSDSpqnbkm), or [create an issue](https://github.com/eclipse-zenoh/zenoh/issues). Package: zenoh Version: 1.2.0 Architecture: armhf Maintainer: zenoh-dev@eclipse.org Installed-Size: 41 Depends: zenoh-plugin-rest (=1.2.0), zenoh-plugin-storage-manager (=1.2.0), zenohd (=1.2.0) Filename: 1.2.0/zenoh_1.2.0_armhf.deb Size: 17456 MD5sum: 81710e0449905cdc27749f78bb6cd301 SHA1: 03ac5ef973d8157588e33c2a81ae453f9f3b3501 SHA256: f1bbd7f4d9a3ebf5756ce46351db29df94afa6512a95e7c95d65a62a8ca73850 Section: net Priority: optional Homepage: http://zenoh.io Description: Zenoh: The Zero Overhead Pub/Sub/Query Protocol. . [![CI](https://github.com/eclipse-zenoh/zenoh/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/eclipse-zenoh/zenoh/actions?query=workflow%3ACI+branch%3Amain++) [![Documentation Status](https://readthedocs.org/projects/zenoh-rust/badge/?version=latest)](https://zenoh-rust.readthedocs.io/en/latest/?badge=latest) [![Discussion](https://img.shields.io/badge/discussion-on%20github-blue)](https://github.com/eclipse-zenoh/roadmap/discussions) [![Discord](https://img.shields.io/badge/chat-on%20discord-blue)](https://discord.gg/2GJ958VuHs) [![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) . # Eclipse Zenoh . The Eclipse Zenoh: Zero Overhead Pub/sub, Store/Query and Compute. . Zenoh (pronounce _/zeno/_) unifies data in motion, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks. . Check the website [zenoh.io](http://zenoh.io) and the [roadmap](https://github.com/eclipse-zenoh/roadmap) for more detailed information. . ------------------------------- . ## Getting Started . Zenoh is extremely easy to learn, the best place to master the fundamentals is our [getting started guide](https://zenoh.io/docs/getting-started/first-app/). . ------------------------------- . ## How to install it . To install the latest release of the Zenoh router (`zenohd`) and its default plugins (REST API plugin and Storages Manager plugin) you can do as follows: . ### Manual installation (all platforms) . All release packages can be downloaded from [https://download.eclipse.org/zenoh/zenoh/latest/](https://download.eclipse.org/zenoh/zenoh/latest/). . Each subdirectory has the name of the Rust target. See the platforms each target corresponds to on [https://doc.rust-lang.org/stable/rustc/platform-support.html](https://doc.rust-lang.org/stable/rustc/platform-support.html). . Choose your platform and download the `.zip` file. Unzip it where you want, and run the extracted `zenohd` binary. . ### Linux Debian . Add Eclipse Zenoh private repository to the sources list, and install the `zenoh` package: . ```bash echo "deb [trusted=yes] https://download.eclipse.org/zenoh/debian-repo/ /" | sudo tee -a /etc/apt/sources.list.d/zenoh.list > /dev/null sudo apt update sudo apt install zenoh ``` . Then you can start run `zenohd`. . ### MacOS . Tap our brew package repository and install the `zenoh` formula: . ```bash brew tap eclipse-zenoh/homebrew-zenoh brew install zenoh ``` . Then you can start run `zenohd`. . ------------------------------- . ## Rust API . * [Docs.rs for Zenoh](https://docs.rs/zenoh/latest/zenoh/) . ------------------------------- . ## How to build it . > [!WARNING] > Zenoh and its ecosystem are under active development. When you build from git, make sure you also build from git any other Zenoh repository you plan to use (e.g. binding, plugin, backend, etc.). It may happen that some changes in git are not compatible with the most recent packaged Zenoh release (e.g. deb, docker, pip). We put particular effort in maintaining compatibility between the various git repositories in the Zenoh project. . Install [Cargo and Rust](https://doc.rust-lang.org/cargo/getting-started/installation.html). Zenoh can be successfully compiled with Rust stable (>= 1.75.0), so no special configuration is required from your side. If you already have the Rust toolchain installed, make sure it is up-to-date with: . ```bash rustup update ``` . To build Zenoh, just type the following command after having followed the previous instructions: . ```bash cargo build --release --all-targets ``` . Zenoh's router is built as `target/release/zenohd`. All the examples are built into the `target/release/examples` directory. They can all work in peer-to-peer, or interconnected via the zenoh router. . ------------------------------- . ## Quick tests of your build . ### Peer-to-peer tests . * **pub/sub** * run: `./target/release/examples/z_sub` * in another shell run: `./target/release/examples/z_put` * the subscriber should receive the publication. . * **get/queryable** * run: `./target/release/examples/z_queryable` * in another shell run: `./target/release/examples/z_get` * the queryable should display the log in its listener, and the get should receive the queryable result. . ### Routed tests . > [!NOTE] > **Windows users**: to properly execute the commands below in PowerShell you need to escape `"` characters as `\"`. . * **put / store / get** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell run: . ```sh ./target/release/examples/z_put` ``` . * then run . ```sh ./target/release/examples/z_get ``` . * the get should receive the stored publication. . * **REST API using `curl` tool** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, do a publication via the REST API: . ```sh curl -X PUT -d '"Hello World!"' http://localhost:8000/demo/example/test ``` . * get it back via the REST API: . ```sh curl http://localhost:8000/demo/example/test ``` . * **router admin space via the REST API** * run the Zenoh router with permission to perform config changes via the admin space, and with a memory storage: . ```sh ./target/release/zenohd --rest-http-port=8000 --adminspace-permissions=rw --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, get info of the zenoh router via the zenoh admin space (you may use `jq` for pretty json formatting): . ```sh curl -s http://localhost:8000/@/local/router | jq ``` . * get the volumes of the router (only memory by default): . ```sh curl -s 'http://localhost:8000/@/local/router/**/volumes/*' | jq ``` . * get the storages of the local router (the memory storage configured at startup on '/demo/example/**' should be present): . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . * add another memory storage on `/demo/mystore/**`: . ```sh curl -X PUT -H 'content-type:application/json' -d '{"key_expr":"demo/mystore/**","volume":"memory"}' http://localhost:8000/@/local/router/config/plugins/storage_manager/storages/mystore ``` . * check it has been created: . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . ### Configuration options . A Zenoh configuration file can be provided via CLI to all Zenoh examples and the Zenoh router. . * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file and the available options. . See other examples of Zenoh usage in [examples/](examples) . > [!NOTE] > **Zenoh Runtime Configuration**: Starting from version 0.11.0-rc, Zenoh allows for configuring the number of worker threads and other advanced options of the runtime. For guidance on utilizing it, please refer to the [doc](https://docs.rs/zenoh-runtime/latest/zenoh_runtime/enum.ZRuntime.html). . ------------------------------- . ## Zenoh router command line arguments . `zenohd` accepts the following arguments: . * `--adminspace-permissions <[r|w|rw|none]>`: Configure the read and/or write permissions on the admin space. Default is read only. * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file. All properties of this configuration are optional, so you may not need such a large configuration for your use-case. * `--cfg :`: allows you to change specific parts of the configuration right after it has been constructed. VALUE must be a valid JSON5 value, and key must be a path through the configuration file, where each element is separated by a `/`. When inserting in parts of the config that are arrays, you may use indexes, or may use `+` to indicate that you want to append your value to the array. `--cfg` passed values will always override any previously existing value for their key in the configuration. * `-l, --listen ...`: An endpoint on which this router will listen for incoming sessions. Repeat this option to open several listeners. By default, `tcp/[::]:7447` is used. The following endpoints are currently supported: * TCP: `tcp/:` * UDP: `udp/:` * [TCP+TLS](https://zenoh.io/docs/manual/tls/): `tls/:` * [QUIC](https://zenoh.io/docs/manual/quic/): `quic/:` * `-e, --connect ...`: An endpoint this router will try to connect to. Repeat this option to connect to several peers or routers. * `--no-multicast-scouting`: By default zenohd replies to multicast scouting messages for being discovered by peers and clients. This option disables this feature. * `-i, --id `: The identifier (as an hexadecimal string - e.g.: A0B23...) that zenohd must use. **WARNING**: this identifier must be unique in the system! If not set, a random unsigned 128bit integer will be used. * `--no-timestamp`: By default zenohd adds a HLC-generated Timestamp to each routed Data if there isn't already one. This option disables this feature. * `-P, --plugin [ | :]...`: A [plugin](https://zenoh.io/docs/manual/plugins/) that must be loaded. Accepted values: * a plugin name; zenohd will search for a library named `libzenoh_plugin_.so` on Unix, `libzenoh_plugin_.dylib` on MacOS or `zenoh_plugin_.dll` on Windows. * `":"`; the plugin will be loaded from library file at ``. . Repeat this option to load several plugins. * `--plugin-search-dir ...`: A directory where to search for [plugins](https://zenoh.io/docs/manual/plugins/) libraries to load. Repeat this option to specify several search directories'. By default, the plugins libraries will be searched in: `'/usr/local/lib:/usr/lib:~/.zenoh/lib:.'` * `--rest-http-port `: Configures the [REST plugin](https://zenoh.io/docs/manual/plugin-http/)'s HTTP port. Accepted values: * a port number * a string with format `:` (to bind the HTTP server to a specific interface) * `"None"` to deactivate the REST plugin . If not specified, the REST plugin will be active on any interface (`[::]`) and port `8000`. . ------------------------------- . ## Plugins . > [!WARNING] > As Rust doesn't have a stable ABI, the plugins should be built with the exact same Rust version as `zenohd`, and using for `zenoh` dependency the same version (or commit number) as `zenohd` with the same set of features. A plugin compiled with different Rust version or with different set of `zenoh` crate features will be rejected when `zenohd` attempts to load it. Otherwise, incompatibilities in memory mapping of structures shared between `zenohd` and the library could lead to a `"SIGSEGV"` crash. . By default the Zenoh router is delivered or built with 2 plugins. These may be configured through a configuration file, or through individual changes to the configuration via the `--cfg` CLI option or via zenoh puts on individual parts of the configuration. . > [!WARNING] > Since `v0.6`, `zenohd` no longer loads every available plugin at startup. Instead, only configured plugins are loaded (after processing `--cfg` and `--plugin` options). Once `zenohd` is running, plugins can be hot-loaded and, if they support it, reconfigured at runtime by editing their configuration through the adminspace. . **[REST plugin](https://zenoh.io/docs/manual/plugin-http/)** (exposing a REST API): This plugin converts GET and PUT REST requests into Zenoh gets and puts respectively. . Note that to activate the REST plugin on `zenohd` the CLI argument should be passed: `--rest-http-port=8000` (or any other port of your choice). . **[Storages plugin](https://zenoh.io/docs/manual/plugin-storage-manager/)** (managing [backends and storages](https://zenoh.io/docs/manual/plugin-storage-manager/#backends-and-volumes)) This plugin allows you to easily define storages. These will store key-value pairs they subscribed to, and send the most recent ones when queried. Check out [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) for info on how to configure them. . ------------------------------- . ## Troubleshooting . In case of troubles, please first check on [this page](https://zenoh.io/docs/getting-started/troubleshooting/) if the trouble and cause are already known. Otherwise, you can ask a question on the [zenoh Discord server](https://discord.gg/vSDSpqnbkm), or [create an issue](https://github.com/eclipse-zenoh/zenoh/issues). Package: zenoh-plugin-rest Version: 1.2.0 Architecture: armel Maintainer: zenoh-dev@eclipse.org Installed-Size: 8018 Depends: zenohd (=1.2.0) Filename: 1.2.0/zenoh-plugin-rest_1.2.0_armel.deb Size: 1793236 MD5sum: 5129fe5cb0bb172a5aecf0212a12003d SHA1: b24b3f972fdd3640384e6e49489b5245ce06d866 SHA256: e8e4768f9f211f229ebe8b0ba23d1f77d9c47137517babb3f0fbc598578ab676 Section: net Priority: optional Homepage: http://zenoh.io Description: The zenoh REST plugin # ⚠️ WARNING ⚠️ . This crate is intended for Zenoh's internal use. . - [Click here for Zenoh's main repository](https://github.com/eclipse-zenoh/zenoh) - [Click here for Zenoh's documentation](https://zenoh.io) Package: zenoh-plugin-rest Version: 1.2.0 Architecture: arm64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 9869 Depends: zenohd (=1.2.0) Filename: 1.2.0/zenoh-plugin-rest_1.2.0_arm64.deb Size: 1918040 MD5sum: 931d9bfd055b8c5128fb275c3d4eb769 SHA1: 3c7fea163790916f50177dd5556ffa83b496c943 SHA256: 7e2faaeeb147577f7f1953dfea0b855fa1e7a503858f57b82a7b810193ac27e0 Section: net Priority: optional Homepage: http://zenoh.io Description: The zenoh REST plugin # ⚠️ WARNING ⚠️ . This crate is intended for Zenoh's internal use. . - [Click here for Zenoh's main repository](https://github.com/eclipse-zenoh/zenoh) - [Click here for Zenoh's documentation](https://zenoh.io) Package: zenoh-plugin-rest Version: 1.2.0 Architecture: amd64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 10883 Depends: zenohd (=1.2.0) Filename: 1.2.0/zenoh-plugin-rest_1.2.0_amd64.deb Size: 2096276 MD5sum: a1c956732765539f403bc6dc53953b61 SHA1: a4842a417b624b11122873b82785bcfa3c3d9c35 SHA256: 6c364afa368f3b1bfbcc1d8197dd82d4534987d65e8aa398f70ec5840fc0d032 Section: net Priority: optional Homepage: http://zenoh.io Description: The zenoh REST plugin # ⚠️ WARNING ⚠️ . This crate is intended for Zenoh's internal use. . - [Click here for Zenoh's main repository](https://github.com/eclipse-zenoh/zenoh) - [Click here for Zenoh's documentation](https://zenoh.io) Package: zenoh-plugin-rest Version: 1.2.0 Architecture: armhf Maintainer: zenoh-dev@eclipse.org Installed-Size: 7924 Depends: zenohd (=1.2.0) Filename: 1.2.0/zenoh-plugin-rest_1.2.0_armhf.deb Size: 1782840 MD5sum: ad400a6c3864456c30c6c25f30dd7762 SHA1: 85aef191b2e20b19359b705c579a9c5dd8f9756c SHA256: c2a2e33af427184c48b1d5f54fe62da63f883b991776662223a4391b6e5d76c7 Section: net Priority: optional Homepage: http://zenoh.io Description: The zenoh REST plugin # ⚠️ WARNING ⚠️ . This crate is intended for Zenoh's internal use. . - [Click here for Zenoh's main repository](https://github.com/eclipse-zenoh/zenoh) - [Click here for Zenoh's documentation](https://zenoh.io) Package: zenoh-plugin-storage-manager Version: 1.2.0 Architecture: amd64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 10615 Depends: zenohd (=1.2.0) Filename: 1.2.0/zenoh-plugin-storage-manager_1.2.0_amd64.deb Size: 1986116 MD5sum: 299b648c2877bd6f6eecc1e1bbc6ae5c SHA1: 0bc184e1cfddae7a0ea965ef19a216d90f99b5c9 SHA256: 8ad26e48090a826336de403ecab9b189a12ec4870535496b2501de1a02f893d2 Section: net Priority: optional Homepage: http://zenoh.io Description: The zenoh storages plugin. # ⚠️ WARNING ⚠️ . This crate is intended for Zenoh's internal use. . - [Click here for Zenoh's main repository](https://github.com/eclipse-zenoh/zenoh) - [Click here for Zenoh's documentation](https://zenoh.io) Package: zenoh-plugin-storage-manager Version: 1.2.0 Architecture: arm64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 9580 Depends: zenohd (=1.2.0) Filename: 1.2.0/zenoh-plugin-storage-manager_1.2.0_arm64.deb Size: 1815520 MD5sum: 4141fcdb3a5cab16e6ff555fd711bf63 SHA1: adf29aa416c5a6897ac9659071e3b3069cf0ca5a SHA256: 12edef5e2620d3c490874ac9dfcf6aa4f456f6c3e265dea97ef7246cfda4c897 Section: net Priority: optional Homepage: http://zenoh.io Description: The zenoh storages plugin. # ⚠️ WARNING ⚠️ . This crate is intended for Zenoh's internal use. . - [Click here for Zenoh's main repository](https://github.com/eclipse-zenoh/zenoh) - [Click here for Zenoh's documentation](https://zenoh.io) Package: zenoh-plugin-storage-manager Version: 1.2.0 Architecture: armhf Maintainer: zenoh-dev@eclipse.org Installed-Size: 7665 Depends: zenohd (=1.2.0) Filename: 1.2.0/zenoh-plugin-storage-manager_1.2.0_armhf.deb Size: 1694792 MD5sum: 2601000c844411d678b5e41ec64b2693 SHA1: 8d6be1f661f43de56bad302c4c926729d1c1ac7d SHA256: fe6985bd01edc8121b0823533e5850c8f6dca878b302ee61ca1bfc26b1ac90aa Section: net Priority: optional Homepage: http://zenoh.io Description: The zenoh storages plugin. # ⚠️ WARNING ⚠️ . This crate is intended for Zenoh's internal use. . - [Click here for Zenoh's main repository](https://github.com/eclipse-zenoh/zenoh) - [Click here for Zenoh's documentation](https://zenoh.io) Package: zenoh-plugin-storage-manager Version: 1.2.0 Architecture: armel Maintainer: zenoh-dev@eclipse.org Installed-Size: 7779 Depends: zenohd (=1.2.0) Filename: 1.2.0/zenoh-plugin-storage-manager_1.2.0_armel.deb Size: 1709108 MD5sum: e39118aadb25ff78749e7bd2c07f519f SHA1: c216d121390ed2c976b5a2f082802c833b442bc1 SHA256: da4fabbde1459ed8951b1920583cb7a726267506c801e9b720fead245982acc3 Section: net Priority: optional Homepage: http://zenoh.io Description: The zenoh storages plugin. # ⚠️ WARNING ⚠️ . This crate is intended for Zenoh's internal use. . - [Click here for Zenoh's main repository](https://github.com/eclipse-zenoh/zenoh) - [Click here for Zenoh's documentation](https://zenoh.io) Package: zenohd Version: 1.2.0 Architecture: armel Maintainer: zenoh-dev@eclipse.org Installed-Size: 18005 Filename: 1.2.0/zenohd_1.2.0_armel.deb Size: 4422624 MD5sum: 7c05d7a8f87cfa3343903111425852dc SHA1: 9ce626325f0de12a57213e0b1bbc2dddd6d7d73f SHA256: ba1856811c58fb3f28bab6834b6a5ae7bf6d02265a32dcc4e0f67afaa7b88545 Section: net Priority: optional Homepage: http://zenoh.io Description: Zenoh: The Zero Overhead Pub/Sub/Query Protocol. . [![CI](https://github.com/eclipse-zenoh/zenoh/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/eclipse-zenoh/zenoh/actions?query=workflow%3ACI+branch%3Amain++) [![Documentation Status](https://readthedocs.org/projects/zenoh-rust/badge/?version=latest)](https://zenoh-rust.readthedocs.io/en/latest/?badge=latest) [![Discussion](https://img.shields.io/badge/discussion-on%20github-blue)](https://github.com/eclipse-zenoh/roadmap/discussions) [![Discord](https://img.shields.io/badge/chat-on%20discord-blue)](https://discord.gg/2GJ958VuHs) [![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) . # Eclipse Zenoh . The Eclipse Zenoh: Zero Overhead Pub/sub, Store/Query and Compute. . Zenoh (pronounce _/zeno/_) unifies data in motion, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks. . Check the website [zenoh.io](http://zenoh.io) and the [roadmap](https://github.com/eclipse-zenoh/roadmap) for more detailed information. . ------------------------------- . ## Getting Started . Zenoh is extremely easy to learn, the best place to master the fundamentals is our [getting started guide](https://zenoh.io/docs/getting-started/first-app/). . ------------------------------- . ## How to install it . To install the latest release of the Zenoh router (`zenohd`) and its default plugins (REST API plugin and Storages Manager plugin) you can do as follows: . ### Manual installation (all platforms) . All release packages can be downloaded from [https://download.eclipse.org/zenoh/zenoh/latest/](https://download.eclipse.org/zenoh/zenoh/latest/). . Each subdirectory has the name of the Rust target. See the platforms each target corresponds to on [https://doc.rust-lang.org/stable/rustc/platform-support.html](https://doc.rust-lang.org/stable/rustc/platform-support.html). . Choose your platform and download the `.zip` file. Unzip it where you want, and run the extracted `zenohd` binary. . ### Linux Debian . Add Eclipse Zenoh private repository to the sources list, and install the `zenoh` package: . ```bash echo "deb [trusted=yes] https://download.eclipse.org/zenoh/debian-repo/ /" | sudo tee -a /etc/apt/sources.list.d/zenoh.list > /dev/null sudo apt update sudo apt install zenoh ``` . Then you can start run `zenohd`. . ### MacOS . Tap our brew package repository and install the `zenoh` formula: . ```bash brew tap eclipse-zenoh/homebrew-zenoh brew install zenoh ``` . Then you can start run `zenohd`. . ------------------------------- . ## Rust API . * [Docs.rs for Zenoh](https://docs.rs/zenoh/latest/zenoh/) . ------------------------------- . ## How to build it . > [!WARNING] > Zenoh and its ecosystem are under active development. When you build from git, make sure you also build from git any other Zenoh repository you plan to use (e.g. binding, plugin, backend, etc.). It may happen that some changes in git are not compatible with the most recent packaged Zenoh release (e.g. deb, docker, pip). We put particular effort in maintaining compatibility between the various git repositories in the Zenoh project. . Install [Cargo and Rust](https://doc.rust-lang.org/cargo/getting-started/installation.html). Zenoh can be successfully compiled with Rust stable (>= 1.75.0), so no special configuration is required from your side. If you already have the Rust toolchain installed, make sure it is up-to-date with: . ```bash rustup update ``` . To build Zenoh, just type the following command after having followed the previous instructions: . ```bash cargo build --release --all-targets ``` . Zenoh's router is built as `target/release/zenohd`. All the examples are built into the `target/release/examples` directory. They can all work in peer-to-peer, or interconnected via the zenoh router. . ------------------------------- . ## Quick tests of your build . ### Peer-to-peer tests . * **pub/sub** * run: `./target/release/examples/z_sub` * in another shell run: `./target/release/examples/z_put` * the subscriber should receive the publication. . * **get/queryable** * run: `./target/release/examples/z_queryable` * in another shell run: `./target/release/examples/z_get` * the queryable should display the log in its listener, and the get should receive the queryable result. . ### Routed tests . > [!NOTE] > **Windows users**: to properly execute the commands below in PowerShell you need to escape `"` characters as `\"`. . * **put / store / get** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell run: . ```sh ./target/release/examples/z_put` ``` . * then run . ```sh ./target/release/examples/z_get ``` . * the get should receive the stored publication. . * **REST API using `curl` tool** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, do a publication via the REST API: . ```sh curl -X PUT -d '"Hello World!"' http://localhost:8000/demo/example/test ``` . * get it back via the REST API: . ```sh curl http://localhost:8000/demo/example/test ``` . * **router admin space via the REST API** * run the Zenoh router with permission to perform config changes via the admin space, and with a memory storage: . ```sh ./target/release/zenohd --rest-http-port=8000 --adminspace-permissions=rw --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, get info of the zenoh router via the zenoh admin space (you may use `jq` for pretty json formatting): . ```sh curl -s http://localhost:8000/@/local/router | jq ``` . * get the volumes of the router (only memory by default): . ```sh curl -s 'http://localhost:8000/@/local/router/**/volumes/*' | jq ``` . * get the storages of the local router (the memory storage configured at startup on '/demo/example/**' should be present): . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . * add another memory storage on `/demo/mystore/**`: . ```sh curl -X PUT -H 'content-type:application/json' -d '{"key_expr":"demo/mystore/**","volume":"memory"}' http://localhost:8000/@/local/router/config/plugins/storage_manager/storages/mystore ``` . * check it has been created: . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . ### Configuration options . A Zenoh configuration file can be provided via CLI to all Zenoh examples and the Zenoh router. . * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file and the available options. . See other examples of Zenoh usage in [examples/](examples) . > [!NOTE] > **Zenoh Runtime Configuration**: Starting from version 0.11.0-rc, Zenoh allows for configuring the number of worker threads and other advanced options of the runtime. For guidance on utilizing it, please refer to the [doc](https://docs.rs/zenoh-runtime/latest/zenoh_runtime/enum.ZRuntime.html). . ------------------------------- . ## Zenoh router command line arguments . `zenohd` accepts the following arguments: . * `--adminspace-permissions <[r|w|rw|none]>`: Configure the read and/or write permissions on the admin space. Default is read only. * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file. All properties of this configuration are optional, so you may not need such a large configuration for your use-case. * `--cfg :`: allows you to change specific parts of the configuration right after it has been constructed. VALUE must be a valid JSON5 value, and key must be a path through the configuration file, where each element is separated by a `/`. When inserting in parts of the config that are arrays, you may use indexes, or may use `+` to indicate that you want to append your value to the array. `--cfg` passed values will always override any previously existing value for their key in the configuration. * `-l, --listen ...`: An endpoint on which this router will listen for incoming sessions. Repeat this option to open several listeners. By default, `tcp/[::]:7447` is used. The following endpoints are currently supported: * TCP: `tcp/:` * UDP: `udp/:` * [TCP+TLS](https://zenoh.io/docs/manual/tls/): `tls/:` * [QUIC](https://zenoh.io/docs/manual/quic/): `quic/:` * `-e, --connect ...`: An endpoint this router will try to connect to. Repeat this option to connect to several peers or routers. * `--no-multicast-scouting`: By default zenohd replies to multicast scouting messages for being discovered by peers and clients. This option disables this feature. * `-i, --id `: The identifier (as an hexadecimal string - e.g.: A0B23...) that zenohd must use. **WARNING**: this identifier must be unique in the system! If not set, a random unsigned 128bit integer will be used. * `--no-timestamp`: By default zenohd adds a HLC-generated Timestamp to each routed Data if there isn't already one. This option disables this feature. * `-P, --plugin [ | :]...`: A [plugin](https://zenoh.io/docs/manual/plugins/) that must be loaded. Accepted values: * a plugin name; zenohd will search for a library named `libzenoh_plugin_.so` on Unix, `libzenoh_plugin_.dylib` on MacOS or `zenoh_plugin_.dll` on Windows. * `":"`; the plugin will be loaded from library file at ``. . Repeat this option to load several plugins. * `--plugin-search-dir ...`: A directory where to search for [plugins](https://zenoh.io/docs/manual/plugins/) libraries to load. Repeat this option to specify several search directories'. By default, the plugins libraries will be searched in: `'/usr/local/lib:/usr/lib:~/.zenoh/lib:.'` * `--rest-http-port `: Configures the [REST plugin](https://zenoh.io/docs/manual/plugin-http/)'s HTTP port. Accepted values: * a port number * a string with format `:` (to bind the HTTP server to a specific interface) * `"None"` to deactivate the REST plugin . If not specified, the REST plugin will be active on any interface (`[::]`) and port `8000`. . ------------------------------- . ## Plugins . > [!WARNING] > As Rust doesn't have a stable ABI, the plugins should be built with the exact same Rust version as `zenohd`, and using for `zenoh` dependency the same version (or commit number) as `zenohd` with the same set of features. A plugin compiled with different Rust version or with different set of `zenoh` crate features will be rejected when `zenohd` attempts to load it. Otherwise, incompatibilities in memory mapping of structures shared between `zenohd` and the library could lead to a `"SIGSEGV"` crash. . By default the Zenoh router is delivered or built with 2 plugins. These may be configured through a configuration file, or through individual changes to the configuration via the `--cfg` CLI option or via zenoh puts on individual parts of the configuration. . > [!WARNING] > Since `v0.6`, `zenohd` no longer loads every available plugin at startup. Instead, only configured plugins are loaded (after processing `--cfg` and `--plugin` options). Once `zenohd` is running, plugins can be hot-loaded and, if they support it, reconfigured at runtime by editing their configuration through the adminspace. . **[REST plugin](https://zenoh.io/docs/manual/plugin-http/)** (exposing a REST API): This plugin converts GET and PUT REST requests into Zenoh gets and puts respectively. . Note that to activate the REST plugin on `zenohd` the CLI argument should be passed: `--rest-http-port=8000` (or any other port of your choice). . **[Storages plugin](https://zenoh.io/docs/manual/plugin-storage-manager/)** (managing [backends and storages](https://zenoh.io/docs/manual/plugin-storage-manager/#backends-and-volumes)) This plugin allows you to easily define storages. These will store key-value pairs they subscribed to, and send the most recent ones when queried. Check out [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) for info on how to configure them. . ------------------------------- . ## Troubleshooting . In case of troubles, please first check on [this page](https://zenoh.io/docs/getting-started/troubleshooting/) if the trouble and cause are already known. Otherwise, you can ask a question on the [zenoh Discord server](https://discord.gg/vSDSpqnbkm), or [create an issue](https://github.com/eclipse-zenoh/zenoh/issues). Package: zenohd Version: 1.2.0 Architecture: arm64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 16557 Filename: 1.2.0/zenohd_1.2.0_arm64.deb Size: 4043120 MD5sum: d9484b325237e4e1e1aa483a07514ec5 SHA1: 5cfef5c824d3cf2fc2612e5246080bc1455ea86b SHA256: 36980ef6b243f496adc0d5e5242177e24c593a04b3b6483808232e7cdfdf6297 Section: net Priority: optional Homepage: http://zenoh.io Description: Zenoh: The Zero Overhead Pub/Sub/Query Protocol. . [![CI](https://github.com/eclipse-zenoh/zenoh/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/eclipse-zenoh/zenoh/actions?query=workflow%3ACI+branch%3Amain++) [![Documentation Status](https://readthedocs.org/projects/zenoh-rust/badge/?version=latest)](https://zenoh-rust.readthedocs.io/en/latest/?badge=latest) [![Discussion](https://img.shields.io/badge/discussion-on%20github-blue)](https://github.com/eclipse-zenoh/roadmap/discussions) [![Discord](https://img.shields.io/badge/chat-on%20discord-blue)](https://discord.gg/2GJ958VuHs) [![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) . # Eclipse Zenoh . The Eclipse Zenoh: Zero Overhead Pub/sub, Store/Query and Compute. . Zenoh (pronounce _/zeno/_) unifies data in motion, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks. . Check the website [zenoh.io](http://zenoh.io) and the [roadmap](https://github.com/eclipse-zenoh/roadmap) for more detailed information. . ------------------------------- . ## Getting Started . Zenoh is extremely easy to learn, the best place to master the fundamentals is our [getting started guide](https://zenoh.io/docs/getting-started/first-app/). . ------------------------------- . ## How to install it . To install the latest release of the Zenoh router (`zenohd`) and its default plugins (REST API plugin and Storages Manager plugin) you can do as follows: . ### Manual installation (all platforms) . All release packages can be downloaded from [https://download.eclipse.org/zenoh/zenoh/latest/](https://download.eclipse.org/zenoh/zenoh/latest/). . Each subdirectory has the name of the Rust target. See the platforms each target corresponds to on [https://doc.rust-lang.org/stable/rustc/platform-support.html](https://doc.rust-lang.org/stable/rustc/platform-support.html). . Choose your platform and download the `.zip` file. Unzip it where you want, and run the extracted `zenohd` binary. . ### Linux Debian . Add Eclipse Zenoh private repository to the sources list, and install the `zenoh` package: . ```bash echo "deb [trusted=yes] https://download.eclipse.org/zenoh/debian-repo/ /" | sudo tee -a /etc/apt/sources.list.d/zenoh.list > /dev/null sudo apt update sudo apt install zenoh ``` . Then you can start run `zenohd`. . ### MacOS . Tap our brew package repository and install the `zenoh` formula: . ```bash brew tap eclipse-zenoh/homebrew-zenoh brew install zenoh ``` . Then you can start run `zenohd`. . ------------------------------- . ## Rust API . * [Docs.rs for Zenoh](https://docs.rs/zenoh/latest/zenoh/) . ------------------------------- . ## How to build it . > [!WARNING] > Zenoh and its ecosystem are under active development. When you build from git, make sure you also build from git any other Zenoh repository you plan to use (e.g. binding, plugin, backend, etc.). It may happen that some changes in git are not compatible with the most recent packaged Zenoh release (e.g. deb, docker, pip). We put particular effort in maintaining compatibility between the various git repositories in the Zenoh project. . Install [Cargo and Rust](https://doc.rust-lang.org/cargo/getting-started/installation.html). Zenoh can be successfully compiled with Rust stable (>= 1.75.0), so no special configuration is required from your side. If you already have the Rust toolchain installed, make sure it is up-to-date with: . ```bash rustup update ``` . To build Zenoh, just type the following command after having followed the previous instructions: . ```bash cargo build --release --all-targets ``` . Zenoh's router is built as `target/release/zenohd`. All the examples are built into the `target/release/examples` directory. They can all work in peer-to-peer, or interconnected via the zenoh router. . ------------------------------- . ## Quick tests of your build . ### Peer-to-peer tests . * **pub/sub** * run: `./target/release/examples/z_sub` * in another shell run: `./target/release/examples/z_put` * the subscriber should receive the publication. . * **get/queryable** * run: `./target/release/examples/z_queryable` * in another shell run: `./target/release/examples/z_get` * the queryable should display the log in its listener, and the get should receive the queryable result. . ### Routed tests . > [!NOTE] > **Windows users**: to properly execute the commands below in PowerShell you need to escape `"` characters as `\"`. . * **put / store / get** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell run: . ```sh ./target/release/examples/z_put` ``` . * then run . ```sh ./target/release/examples/z_get ``` . * the get should receive the stored publication. . * **REST API using `curl` tool** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, do a publication via the REST API: . ```sh curl -X PUT -d '"Hello World!"' http://localhost:8000/demo/example/test ``` . * get it back via the REST API: . ```sh curl http://localhost:8000/demo/example/test ``` . * **router admin space via the REST API** * run the Zenoh router with permission to perform config changes via the admin space, and with a memory storage: . ```sh ./target/release/zenohd --rest-http-port=8000 --adminspace-permissions=rw --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, get info of the zenoh router via the zenoh admin space (you may use `jq` for pretty json formatting): . ```sh curl -s http://localhost:8000/@/local/router | jq ``` . * get the volumes of the router (only memory by default): . ```sh curl -s 'http://localhost:8000/@/local/router/**/volumes/*' | jq ``` . * get the storages of the local router (the memory storage configured at startup on '/demo/example/**' should be present): . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . * add another memory storage on `/demo/mystore/**`: . ```sh curl -X PUT -H 'content-type:application/json' -d '{"key_expr":"demo/mystore/**","volume":"memory"}' http://localhost:8000/@/local/router/config/plugins/storage_manager/storages/mystore ``` . * check it has been created: . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . ### Configuration options . A Zenoh configuration file can be provided via CLI to all Zenoh examples and the Zenoh router. . * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file and the available options. . See other examples of Zenoh usage in [examples/](examples) . > [!NOTE] > **Zenoh Runtime Configuration**: Starting from version 0.11.0-rc, Zenoh allows for configuring the number of worker threads and other advanced options of the runtime. For guidance on utilizing it, please refer to the [doc](https://docs.rs/zenoh-runtime/latest/zenoh_runtime/enum.ZRuntime.html). . ------------------------------- . ## Zenoh router command line arguments . `zenohd` accepts the following arguments: . * `--adminspace-permissions <[r|w|rw|none]>`: Configure the read and/or write permissions on the admin space. Default is read only. * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file. All properties of this configuration are optional, so you may not need such a large configuration for your use-case. * `--cfg :`: allows you to change specific parts of the configuration right after it has been constructed. VALUE must be a valid JSON5 value, and key must be a path through the configuration file, where each element is separated by a `/`. When inserting in parts of the config that are arrays, you may use indexes, or may use `+` to indicate that you want to append your value to the array. `--cfg` passed values will always override any previously existing value for their key in the configuration. * `-l, --listen ...`: An endpoint on which this router will listen for incoming sessions. Repeat this option to open several listeners. By default, `tcp/[::]:7447` is used. The following endpoints are currently supported: * TCP: `tcp/:` * UDP: `udp/:` * [TCP+TLS](https://zenoh.io/docs/manual/tls/): `tls/:` * [QUIC](https://zenoh.io/docs/manual/quic/): `quic/:` * `-e, --connect ...`: An endpoint this router will try to connect to. Repeat this option to connect to several peers or routers. * `--no-multicast-scouting`: By default zenohd replies to multicast scouting messages for being discovered by peers and clients. This option disables this feature. * `-i, --id `: The identifier (as an hexadecimal string - e.g.: A0B23...) that zenohd must use. **WARNING**: this identifier must be unique in the system! If not set, a random unsigned 128bit integer will be used. * `--no-timestamp`: By default zenohd adds a HLC-generated Timestamp to each routed Data if there isn't already one. This option disables this feature. * `-P, --plugin [ | :]...`: A [plugin](https://zenoh.io/docs/manual/plugins/) that must be loaded. Accepted values: * a plugin name; zenohd will search for a library named `libzenoh_plugin_.so` on Unix, `libzenoh_plugin_.dylib` on MacOS or `zenoh_plugin_.dll` on Windows. * `":"`; the plugin will be loaded from library file at ``. . Repeat this option to load several plugins. * `--plugin-search-dir ...`: A directory where to search for [plugins](https://zenoh.io/docs/manual/plugins/) libraries to load. Repeat this option to specify several search directories'. By default, the plugins libraries will be searched in: `'/usr/local/lib:/usr/lib:~/.zenoh/lib:.'` * `--rest-http-port `: Configures the [REST plugin](https://zenoh.io/docs/manual/plugin-http/)'s HTTP port. Accepted values: * a port number * a string with format `:` (to bind the HTTP server to a specific interface) * `"None"` to deactivate the REST plugin . If not specified, the REST plugin will be active on any interface (`[::]`) and port `8000`. . ------------------------------- . ## Plugins . > [!WARNING] > As Rust doesn't have a stable ABI, the plugins should be built with the exact same Rust version as `zenohd`, and using for `zenoh` dependency the same version (or commit number) as `zenohd` with the same set of features. A plugin compiled with different Rust version or with different set of `zenoh` crate features will be rejected when `zenohd` attempts to load it. Otherwise, incompatibilities in memory mapping of structures shared between `zenohd` and the library could lead to a `"SIGSEGV"` crash. . By default the Zenoh router is delivered or built with 2 plugins. These may be configured through a configuration file, or through individual changes to the configuration via the `--cfg` CLI option or via zenoh puts on individual parts of the configuration. . > [!WARNING] > Since `v0.6`, `zenohd` no longer loads every available plugin at startup. Instead, only configured plugins are loaded (after processing `--cfg` and `--plugin` options). Once `zenohd` is running, plugins can be hot-loaded and, if they support it, reconfigured at runtime by editing their configuration through the adminspace. . **[REST plugin](https://zenoh.io/docs/manual/plugin-http/)** (exposing a REST API): This plugin converts GET and PUT REST requests into Zenoh gets and puts respectively. . Note that to activate the REST plugin on `zenohd` the CLI argument should be passed: `--rest-http-port=8000` (or any other port of your choice). . **[Storages plugin](https://zenoh.io/docs/manual/plugin-storage-manager/)** (managing [backends and storages](https://zenoh.io/docs/manual/plugin-storage-manager/#backends-and-volumes)) This plugin allows you to easily define storages. These will store key-value pairs they subscribed to, and send the most recent ones when queried. Check out [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) for info on how to configure them. . ------------------------------- . ## Troubleshooting . In case of troubles, please first check on [this page](https://zenoh.io/docs/getting-started/troubleshooting/) if the trouble and cause are already known. Otherwise, you can ask a question on the [zenoh Discord server](https://discord.gg/vSDSpqnbkm), or [create an issue](https://github.com/eclipse-zenoh/zenoh/issues). Package: zenohd Version: 1.2.0 Architecture: amd64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 18456 Depends: libc6 (>= 2.29) Filename: 1.2.0/zenohd_1.2.0_amd64.deb Size: 4506924 MD5sum: 792e94e821f305522599c544a627bdef SHA1: 80f57829558a78dda755af36ab7a9bb21eae9142 SHA256: fdaa5f2b4a09265ebf0b10b4ef42df1c1ede34cc516fe92313139b99354a23e9 Section: net Priority: optional Homepage: http://zenoh.io Description: Zenoh: The Zero Overhead Pub/Sub/Query Protocol. . [![CI](https://github.com/eclipse-zenoh/zenoh/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/eclipse-zenoh/zenoh/actions?query=workflow%3ACI+branch%3Amain++) [![Documentation Status](https://readthedocs.org/projects/zenoh-rust/badge/?version=latest)](https://zenoh-rust.readthedocs.io/en/latest/?badge=latest) [![Discussion](https://img.shields.io/badge/discussion-on%20github-blue)](https://github.com/eclipse-zenoh/roadmap/discussions) [![Discord](https://img.shields.io/badge/chat-on%20discord-blue)](https://discord.gg/2GJ958VuHs) [![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) . # Eclipse Zenoh . The Eclipse Zenoh: Zero Overhead Pub/sub, Store/Query and Compute. . Zenoh (pronounce _/zeno/_) unifies data in motion, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks. . Check the website [zenoh.io](http://zenoh.io) and the [roadmap](https://github.com/eclipse-zenoh/roadmap) for more detailed information. . ------------------------------- . ## Getting Started . Zenoh is extremely easy to learn, the best place to master the fundamentals is our [getting started guide](https://zenoh.io/docs/getting-started/first-app/). . ------------------------------- . ## How to install it . To install the latest release of the Zenoh router (`zenohd`) and its default plugins (REST API plugin and Storages Manager plugin) you can do as follows: . ### Manual installation (all platforms) . All release packages can be downloaded from [https://download.eclipse.org/zenoh/zenoh/latest/](https://download.eclipse.org/zenoh/zenoh/latest/). . Each subdirectory has the name of the Rust target. See the platforms each target corresponds to on [https://doc.rust-lang.org/stable/rustc/platform-support.html](https://doc.rust-lang.org/stable/rustc/platform-support.html). . Choose your platform and download the `.zip` file. Unzip it where you want, and run the extracted `zenohd` binary. . ### Linux Debian . Add Eclipse Zenoh private repository to the sources list, and install the `zenoh` package: . ```bash echo "deb [trusted=yes] https://download.eclipse.org/zenoh/debian-repo/ /" | sudo tee -a /etc/apt/sources.list.d/zenoh.list > /dev/null sudo apt update sudo apt install zenoh ``` . Then you can start run `zenohd`. . ### MacOS . Tap our brew package repository and install the `zenoh` formula: . ```bash brew tap eclipse-zenoh/homebrew-zenoh brew install zenoh ``` . Then you can start run `zenohd`. . ------------------------------- . ## Rust API . * [Docs.rs for Zenoh](https://docs.rs/zenoh/latest/zenoh/) . ------------------------------- . ## How to build it . > [!WARNING] > Zenoh and its ecosystem are under active development. When you build from git, make sure you also build from git any other Zenoh repository you plan to use (e.g. binding, plugin, backend, etc.). It may happen that some changes in git are not compatible with the most recent packaged Zenoh release (e.g. deb, docker, pip). We put particular effort in maintaining compatibility between the various git repositories in the Zenoh project. . Install [Cargo and Rust](https://doc.rust-lang.org/cargo/getting-started/installation.html). Zenoh can be successfully compiled with Rust stable (>= 1.75.0), so no special configuration is required from your side. If you already have the Rust toolchain installed, make sure it is up-to-date with: . ```bash rustup update ``` . To build Zenoh, just type the following command after having followed the previous instructions: . ```bash cargo build --release --all-targets ``` . Zenoh's router is built as `target/release/zenohd`. All the examples are built into the `target/release/examples` directory. They can all work in peer-to-peer, or interconnected via the zenoh router. . ------------------------------- . ## Quick tests of your build . ### Peer-to-peer tests . * **pub/sub** * run: `./target/release/examples/z_sub` * in another shell run: `./target/release/examples/z_put` * the subscriber should receive the publication. . * **get/queryable** * run: `./target/release/examples/z_queryable` * in another shell run: `./target/release/examples/z_get` * the queryable should display the log in its listener, and the get should receive the queryable result. . ### Routed tests . > [!NOTE] > **Windows users**: to properly execute the commands below in PowerShell you need to escape `"` characters as `\"`. . * **put / store / get** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell run: . ```sh ./target/release/examples/z_put` ``` . * then run . ```sh ./target/release/examples/z_get ``` . * the get should receive the stored publication. . * **REST API using `curl` tool** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, do a publication via the REST API: . ```sh curl -X PUT -d '"Hello World!"' http://localhost:8000/demo/example/test ``` . * get it back via the REST API: . ```sh curl http://localhost:8000/demo/example/test ``` . * **router admin space via the REST API** * run the Zenoh router with permission to perform config changes via the admin space, and with a memory storage: . ```sh ./target/release/zenohd --rest-http-port=8000 --adminspace-permissions=rw --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, get info of the zenoh router via the zenoh admin space (you may use `jq` for pretty json formatting): . ```sh curl -s http://localhost:8000/@/local/router | jq ``` . * get the volumes of the router (only memory by default): . ```sh curl -s 'http://localhost:8000/@/local/router/**/volumes/*' | jq ``` . * get the storages of the local router (the memory storage configured at startup on '/demo/example/**' should be present): . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . * add another memory storage on `/demo/mystore/**`: . ```sh curl -X PUT -H 'content-type:application/json' -d '{"key_expr":"demo/mystore/**","volume":"memory"}' http://localhost:8000/@/local/router/config/plugins/storage_manager/storages/mystore ``` . * check it has been created: . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . ### Configuration options . A Zenoh configuration file can be provided via CLI to all Zenoh examples and the Zenoh router. . * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file and the available options. . See other examples of Zenoh usage in [examples/](examples) . > [!NOTE] > **Zenoh Runtime Configuration**: Starting from version 0.11.0-rc, Zenoh allows for configuring the number of worker threads and other advanced options of the runtime. For guidance on utilizing it, please refer to the [doc](https://docs.rs/zenoh-runtime/latest/zenoh_runtime/enum.ZRuntime.html). . ------------------------------- . ## Zenoh router command line arguments . `zenohd` accepts the following arguments: . * `--adminspace-permissions <[r|w|rw|none]>`: Configure the read and/or write permissions on the admin space. Default is read only. * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file. All properties of this configuration are optional, so you may not need such a large configuration for your use-case. * `--cfg :`: allows you to change specific parts of the configuration right after it has been constructed. VALUE must be a valid JSON5 value, and key must be a path through the configuration file, where each element is separated by a `/`. When inserting in parts of the config that are arrays, you may use indexes, or may use `+` to indicate that you want to append your value to the array. `--cfg` passed values will always override any previously existing value for their key in the configuration. * `-l, --listen ...`: An endpoint on which this router will listen for incoming sessions. Repeat this option to open several listeners. By default, `tcp/[::]:7447` is used. The following endpoints are currently supported: * TCP: `tcp/:` * UDP: `udp/:` * [TCP+TLS](https://zenoh.io/docs/manual/tls/): `tls/:` * [QUIC](https://zenoh.io/docs/manual/quic/): `quic/:` * `-e, --connect ...`: An endpoint this router will try to connect to. Repeat this option to connect to several peers or routers. * `--no-multicast-scouting`: By default zenohd replies to multicast scouting messages for being discovered by peers and clients. This option disables this feature. * `-i, --id `: The identifier (as an hexadecimal string - e.g.: A0B23...) that zenohd must use. **WARNING**: this identifier must be unique in the system! If not set, a random unsigned 128bit integer will be used. * `--no-timestamp`: By default zenohd adds a HLC-generated Timestamp to each routed Data if there isn't already one. This option disables this feature. * `-P, --plugin [ | :]...`: A [plugin](https://zenoh.io/docs/manual/plugins/) that must be loaded. Accepted values: * a plugin name; zenohd will search for a library named `libzenoh_plugin_.so` on Unix, `libzenoh_plugin_.dylib` on MacOS or `zenoh_plugin_.dll` on Windows. * `":"`; the plugin will be loaded from library file at ``. . Repeat this option to load several plugins. * `--plugin-search-dir ...`: A directory where to search for [plugins](https://zenoh.io/docs/manual/plugins/) libraries to load. Repeat this option to specify several search directories'. By default, the plugins libraries will be searched in: `'/usr/local/lib:/usr/lib:~/.zenoh/lib:.'` * `--rest-http-port `: Configures the [REST plugin](https://zenoh.io/docs/manual/plugin-http/)'s HTTP port. Accepted values: * a port number * a string with format `:` (to bind the HTTP server to a specific interface) * `"None"` to deactivate the REST plugin . If not specified, the REST plugin will be active on any interface (`[::]`) and port `8000`. . ------------------------------- . ## Plugins . > [!WARNING] > As Rust doesn't have a stable ABI, the plugins should be built with the exact same Rust version as `zenohd`, and using for `zenoh` dependency the same version (or commit number) as `zenohd` with the same set of features. A plugin compiled with different Rust version or with different set of `zenoh` crate features will be rejected when `zenohd` attempts to load it. Otherwise, incompatibilities in memory mapping of structures shared between `zenohd` and the library could lead to a `"SIGSEGV"` crash. . By default the Zenoh router is delivered or built with 2 plugins. These may be configured through a configuration file, or through individual changes to the configuration via the `--cfg` CLI option or via zenoh puts on individual parts of the configuration. . > [!WARNING] > Since `v0.6`, `zenohd` no longer loads every available plugin at startup. Instead, only configured plugins are loaded (after processing `--cfg` and `--plugin` options). Once `zenohd` is running, plugins can be hot-loaded and, if they support it, reconfigured at runtime by editing their configuration through the adminspace. . **[REST plugin](https://zenoh.io/docs/manual/plugin-http/)** (exposing a REST API): This plugin converts GET and PUT REST requests into Zenoh gets and puts respectively. . Note that to activate the REST plugin on `zenohd` the CLI argument should be passed: `--rest-http-port=8000` (or any other port of your choice). . **[Storages plugin](https://zenoh.io/docs/manual/plugin-storage-manager/)** (managing [backends and storages](https://zenoh.io/docs/manual/plugin-storage-manager/#backends-and-volumes)) This plugin allows you to easily define storages. These will store key-value pairs they subscribed to, and send the most recent ones when queried. Check out [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) for info on how to configure them. . ------------------------------- . ## Troubleshooting . In case of troubles, please first check on [this page](https://zenoh.io/docs/getting-started/troubleshooting/) if the trouble and cause are already known. Otherwise, you can ask a question on the [zenoh Discord server](https://discord.gg/vSDSpqnbkm), or [create an issue](https://github.com/eclipse-zenoh/zenoh/issues). Package: zenohd Version: 1.2.0 Architecture: armhf Maintainer: zenoh-dev@eclipse.org Installed-Size: 17775 Filename: 1.2.0/zenohd_1.2.0_armhf.deb Size: 4478536 MD5sum: 5b5d8391d02072494f5419b4c4e98b29 SHA1: f751076b082b9568fd0dfbbcad2c5da02e84347c SHA256: 2f55e0e3ac0da92c51c48e2516ed9828ec7bc1987ac255f35ef3b67dcaf6d502 Section: net Priority: optional Homepage: http://zenoh.io Description: Zenoh: The Zero Overhead Pub/Sub/Query Protocol. . [![CI](https://github.com/eclipse-zenoh/zenoh/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/eclipse-zenoh/zenoh/actions?query=workflow%3ACI+branch%3Amain++) [![Documentation Status](https://readthedocs.org/projects/zenoh-rust/badge/?version=latest)](https://zenoh-rust.readthedocs.io/en/latest/?badge=latest) [![Discussion](https://img.shields.io/badge/discussion-on%20github-blue)](https://github.com/eclipse-zenoh/roadmap/discussions) [![Discord](https://img.shields.io/badge/chat-on%20discord-blue)](https://discord.gg/2GJ958VuHs) [![License](https://img.shields.io/badge/License-EPL%202.0-blue)](https://choosealicense.com/licenses/epl-2.0/) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0) . # Eclipse Zenoh . The Eclipse Zenoh: Zero Overhead Pub/sub, Store/Query and Compute. . Zenoh (pronounce _/zeno/_) unifies data in motion, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks. . Check the website [zenoh.io](http://zenoh.io) and the [roadmap](https://github.com/eclipse-zenoh/roadmap) for more detailed information. . ------------------------------- . ## Getting Started . Zenoh is extremely easy to learn, the best place to master the fundamentals is our [getting started guide](https://zenoh.io/docs/getting-started/first-app/). . ------------------------------- . ## How to install it . To install the latest release of the Zenoh router (`zenohd`) and its default plugins (REST API plugin and Storages Manager plugin) you can do as follows: . ### Manual installation (all platforms) . All release packages can be downloaded from [https://download.eclipse.org/zenoh/zenoh/latest/](https://download.eclipse.org/zenoh/zenoh/latest/). . Each subdirectory has the name of the Rust target. See the platforms each target corresponds to on [https://doc.rust-lang.org/stable/rustc/platform-support.html](https://doc.rust-lang.org/stable/rustc/platform-support.html). . Choose your platform and download the `.zip` file. Unzip it where you want, and run the extracted `zenohd` binary. . ### Linux Debian . Add Eclipse Zenoh private repository to the sources list, and install the `zenoh` package: . ```bash echo "deb [trusted=yes] https://download.eclipse.org/zenoh/debian-repo/ /" | sudo tee -a /etc/apt/sources.list.d/zenoh.list > /dev/null sudo apt update sudo apt install zenoh ``` . Then you can start run `zenohd`. . ### MacOS . Tap our brew package repository and install the `zenoh` formula: . ```bash brew tap eclipse-zenoh/homebrew-zenoh brew install zenoh ``` . Then you can start run `zenohd`. . ------------------------------- . ## Rust API . * [Docs.rs for Zenoh](https://docs.rs/zenoh/latest/zenoh/) . ------------------------------- . ## How to build it . > [!WARNING] > Zenoh and its ecosystem are under active development. When you build from git, make sure you also build from git any other Zenoh repository you plan to use (e.g. binding, plugin, backend, etc.). It may happen that some changes in git are not compatible with the most recent packaged Zenoh release (e.g. deb, docker, pip). We put particular effort in maintaining compatibility between the various git repositories in the Zenoh project. . Install [Cargo and Rust](https://doc.rust-lang.org/cargo/getting-started/installation.html). Zenoh can be successfully compiled with Rust stable (>= 1.75.0), so no special configuration is required from your side. If you already have the Rust toolchain installed, make sure it is up-to-date with: . ```bash rustup update ``` . To build Zenoh, just type the following command after having followed the previous instructions: . ```bash cargo build --release --all-targets ``` . Zenoh's router is built as `target/release/zenohd`. All the examples are built into the `target/release/examples` directory. They can all work in peer-to-peer, or interconnected via the zenoh router. . ------------------------------- . ## Quick tests of your build . ### Peer-to-peer tests . * **pub/sub** * run: `./target/release/examples/z_sub` * in another shell run: `./target/release/examples/z_put` * the subscriber should receive the publication. . * **get/queryable** * run: `./target/release/examples/z_queryable` * in another shell run: `./target/release/examples/z_get` * the queryable should display the log in its listener, and the get should receive the queryable result. . ### Routed tests . > [!NOTE] > **Windows users**: to properly execute the commands below in PowerShell you need to escape `"` characters as `\"`. . * **put / store / get** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell run: . ```sh ./target/release/examples/z_put` ``` . * then run . ```sh ./target/release/examples/z_get ``` . * the get should receive the stored publication. . * **REST API using `curl` tool** * run the Zenoh router with a memory storage: . ```sh ./target/release/zenohd --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, do a publication via the REST API: . ```sh curl -X PUT -d '"Hello World!"' http://localhost:8000/demo/example/test ``` . * get it back via the REST API: . ```sh curl http://localhost:8000/demo/example/test ``` . * **router admin space via the REST API** * run the Zenoh router with permission to perform config changes via the admin space, and with a memory storage: . ```sh ./target/release/zenohd --rest-http-port=8000 --adminspace-permissions=rw --cfg='plugins/storage_manager/storages/demo:{key_expr:"demo/example/**",volume:"memory"}' ``` . * in another shell, get info of the zenoh router via the zenoh admin space (you may use `jq` for pretty json formatting): . ```sh curl -s http://localhost:8000/@/local/router | jq ``` . * get the volumes of the router (only memory by default): . ```sh curl -s 'http://localhost:8000/@/local/router/**/volumes/*' | jq ``` . * get the storages of the local router (the memory storage configured at startup on '/demo/example/**' should be present): . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . * add another memory storage on `/demo/mystore/**`: . ```sh curl -X PUT -H 'content-type:application/json' -d '{"key_expr":"demo/mystore/**","volume":"memory"}' http://localhost:8000/@/local/router/config/plugins/storage_manager/storages/mystore ``` . * check it has been created: . ```sh curl -s 'http://localhost:8000/@/local/router/**/storages/*' | jq ``` . ### Configuration options . A Zenoh configuration file can be provided via CLI to all Zenoh examples and the Zenoh router. . * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file and the available options. . See other examples of Zenoh usage in [examples/](examples) . > [!NOTE] > **Zenoh Runtime Configuration**: Starting from version 0.11.0-rc, Zenoh allows for configuring the number of worker threads and other advanced options of the runtime. For guidance on utilizing it, please refer to the [doc](https://docs.rs/zenoh-runtime/latest/zenoh_runtime/enum.ZRuntime.html). . ------------------------------- . ## Zenoh router command line arguments . `zenohd` accepts the following arguments: . * `--adminspace-permissions <[r|w|rw|none]>`: Configure the read and/or write permissions on the admin space. Default is read only. * `-c, --config `: a [JSON5](https://json5.org) configuration file. [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) shows the schema of this file. All properties of this configuration are optional, so you may not need such a large configuration for your use-case. * `--cfg :`: allows you to change specific parts of the configuration right after it has been constructed. VALUE must be a valid JSON5 value, and key must be a path through the configuration file, where each element is separated by a `/`. When inserting in parts of the config that are arrays, you may use indexes, or may use `+` to indicate that you want to append your value to the array. `--cfg` passed values will always override any previously existing value for their key in the configuration. * `-l, --listen ...`: An endpoint on which this router will listen for incoming sessions. Repeat this option to open several listeners. By default, `tcp/[::]:7447` is used. The following endpoints are currently supported: * TCP: `tcp/:` * UDP: `udp/:` * [TCP+TLS](https://zenoh.io/docs/manual/tls/): `tls/:` * [QUIC](https://zenoh.io/docs/manual/quic/): `quic/:` * `-e, --connect ...`: An endpoint this router will try to connect to. Repeat this option to connect to several peers or routers. * `--no-multicast-scouting`: By default zenohd replies to multicast scouting messages for being discovered by peers and clients. This option disables this feature. * `-i, --id `: The identifier (as an hexadecimal string - e.g.: A0B23...) that zenohd must use. **WARNING**: this identifier must be unique in the system! If not set, a random unsigned 128bit integer will be used. * `--no-timestamp`: By default zenohd adds a HLC-generated Timestamp to each routed Data if there isn't already one. This option disables this feature. * `-P, --plugin [ | :]...`: A [plugin](https://zenoh.io/docs/manual/plugins/) that must be loaded. Accepted values: * a plugin name; zenohd will search for a library named `libzenoh_plugin_.so` on Unix, `libzenoh_plugin_.dylib` on MacOS or `zenoh_plugin_.dll` on Windows. * `":"`; the plugin will be loaded from library file at ``. . Repeat this option to load several plugins. * `--plugin-search-dir ...`: A directory where to search for [plugins](https://zenoh.io/docs/manual/plugins/) libraries to load. Repeat this option to specify several search directories'. By default, the plugins libraries will be searched in: `'/usr/local/lib:/usr/lib:~/.zenoh/lib:.'` * `--rest-http-port `: Configures the [REST plugin](https://zenoh.io/docs/manual/plugin-http/)'s HTTP port. Accepted values: * a port number * a string with format `:` (to bind the HTTP server to a specific interface) * `"None"` to deactivate the REST plugin . If not specified, the REST plugin will be active on any interface (`[::]`) and port `8000`. . ------------------------------- . ## Plugins . > [!WARNING] > As Rust doesn't have a stable ABI, the plugins should be built with the exact same Rust version as `zenohd`, and using for `zenoh` dependency the same version (or commit number) as `zenohd` with the same set of features. A plugin compiled with different Rust version or with different set of `zenoh` crate features will be rejected when `zenohd` attempts to load it. Otherwise, incompatibilities in memory mapping of structures shared between `zenohd` and the library could lead to a `"SIGSEGV"` crash. . By default the Zenoh router is delivered or built with 2 plugins. These may be configured through a configuration file, or through individual changes to the configuration via the `--cfg` CLI option or via zenoh puts on individual parts of the configuration. . > [!WARNING] > Since `v0.6`, `zenohd` no longer loads every available plugin at startup. Instead, only configured plugins are loaded (after processing `--cfg` and `--plugin` options). Once `zenohd` is running, plugins can be hot-loaded and, if they support it, reconfigured at runtime by editing their configuration through the adminspace. . **[REST plugin](https://zenoh.io/docs/manual/plugin-http/)** (exposing a REST API): This plugin converts GET and PUT REST requests into Zenoh gets and puts respectively. . Note that to activate the REST plugin on `zenohd` the CLI argument should be passed: `--rest-http-port=8000` (or any other port of your choice). . **[Storages plugin](https://zenoh.io/docs/manual/plugin-storage-manager/)** (managing [backends and storages](https://zenoh.io/docs/manual/plugin-storage-manager/#backends-and-volumes)) This plugin allows you to easily define storages. These will store key-value pairs they subscribed to, and send the most recent ones when queried. Check out [DEFAULT_CONFIG.json5](DEFAULT_CONFIG.json5) for info on how to configure them. . ------------------------------- . ## Troubleshooting . In case of troubles, please first check on [this page](https://zenoh.io/docs/getting-started/troubleshooting/) if the trouble and cause are already known. Otherwise, you can ask a question on the [zenoh Discord server](https://discord.gg/vSDSpqnbkm), or [create an issue](https://github.com/eclipse-zenoh/zenoh/issues).