Package: zenoh Version: 1.0.4 Architecture: arm64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 40 Depends: zenoh-plugin-rest (=1.0.4), zenoh-plugin-storage-manager (=1.0.4), zenohd (=1.0.4) Filename: 1.0.4/zenoh_1.0.4_arm64.deb Size: 17420 MD5sum: 393b84f26ce84c2244cefcce7dbf16c9 SHA1: 012f0b632d4d1a7b4f47569b2ee73060ab33cf85 SHA256: 49ee534d4a37c3118c87b36c83bfb3d90db62ff0aee14ed72646555edfc0d7be 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 --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. . Note that the REST plugin is added to the configuration by the default value of the `--rest-http-port` CLI argument. . **[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. . **[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: 1.0.4 Architecture: armel Maintainer: zenoh-dev@eclipse.org Installed-Size: 40 Depends: zenoh-plugin-rest (=1.0.4), zenoh-plugin-storage-manager (=1.0.4), zenohd (=1.0.4) Filename: 1.0.4/zenoh_1.0.4_armel.deb Size: 17424 MD5sum: 70039eb69b06692170172358f0b4592d SHA1: d226738038bf38b2f25cdbe295ede2a9848bec67 SHA256: 15e2a631f9e47a45e97632f1e6d4a10745b97527ae724011ae8dbaa014003351 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 --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. . Note that the REST plugin is added to the configuration by the default value of the `--rest-http-port` CLI argument. . **[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. . **[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: 1.0.4 Architecture: armhf Maintainer: zenoh-dev@eclipse.org Installed-Size: 40 Depends: zenoh-plugin-rest (=1.0.4), zenoh-plugin-storage-manager (=1.0.4), zenohd (=1.0.4) Filename: 1.0.4/zenoh_1.0.4_armhf.deb Size: 17424 MD5sum: 6fe52a07625ab9288329bf83626f6a8d SHA1: a641730b68430b6ab160bf1d5aa0c8e7787243e7 SHA256: a5595d9e59dae62f2df4f58380546878a7e788037eb5e836239a6d6e1a118533 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 --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. . Note that the REST plugin is added to the configuration by the default value of the `--rest-http-port` CLI argument. . **[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. . **[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: 1.0.4 Architecture: amd64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 40 Depends: zenoh-plugin-rest (=1.0.4), zenoh-plugin-storage-manager (=1.0.4), zenohd (=1.0.4) Filename: 1.0.4/zenoh_1.0.4_amd64.deb Size: 17420 MD5sum: ea7af3081244de9b499f3efe9d650484 SHA1: e1f071fa0e6996b14bb23ddd9b2851664de75bdb SHA256: 915ac3f98cce6075b621645750f0f7fa85c36f3a3bb26869296230e00bb12bdb 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 --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. . Note that the REST plugin is added to the configuration by the default value of the `--rest-http-port` CLI argument. . **[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. . **[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: 1.0.4 Architecture: armel Maintainer: zenoh-dev@eclipse.org Installed-Size: 8018 Depends: zenohd (=1.0.4) Filename: 1.0.4/zenoh-plugin-rest_1.0.4_armel.deb Size: 1793144 MD5sum: f63c27a2359e1862b37f1549bc734dc3 SHA1: fd13277beba2233cf68254cd308a8f8c1d01f708 SHA256: 493756e4aec5bce5691e9780f67a21a13d1f423b4ef876d81e00fc1d94e9711a 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: 1.0.4 Architecture: arm64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 9869 Depends: zenohd (=1.0.4) Filename: 1.0.4/zenoh-plugin-rest_1.0.4_arm64.deb Size: 1919456 MD5sum: f0b35ab58e423241b5d24e3bb8058a91 SHA1: 6a7005a07430fb810d75206bb5ce01bb68516372 SHA256: a83940e0c3dcff5793964714c6730a636577e4a6dd3db53020ccc4b5fd3e0fc6 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: 1.0.4 Architecture: armhf Maintainer: zenoh-dev@eclipse.org Installed-Size: 7921 Depends: zenohd (=1.0.4) Filename: 1.0.4/zenoh-plugin-rest_1.0.4_armhf.deb Size: 1781444 MD5sum: 94cbb53b932fb9723364ac539f2e3530 SHA1: 39712ce3e9edc840b856062de1f1e7e476f8c206 SHA256: 01f5551ccedfcac1f52605643df692d471e70e3a2eaa724c99cda77a6040e55b 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: 1.0.4 Architecture: amd64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 10885 Depends: zenohd (=1.0.4) Filename: 1.0.4/zenoh-plugin-rest_1.0.4_amd64.deb Size: 2096604 MD5sum: 89ccc40f32efabfaf619c3e56a8e37ae SHA1: 9bf2e261765cc949e15e0b395c201feb64418914 SHA256: aa4aa0779000b85a051326f8a6d4be70176607e10cce34f69bd1a12aa82b11d2 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: 1.0.4 Architecture: amd64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 10617 Depends: zenohd (=1.0.4) Filename: 1.0.4/zenoh-plugin-storage-manager_1.0.4_amd64.deb Size: 1986416 MD5sum: 7b2c262630443d6bc9ae3e3ddd3f7ab6 SHA1: b31e6cc4d083a5014e1ccd1e98e5443098c51782 SHA256: 19291103ac09a456380cb14f5e724170a3c7a4aa2502f1a8c0541212570e2e79 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: 1.0.4 Architecture: armel Maintainer: zenoh-dev@eclipse.org Installed-Size: 7776 Depends: zenohd (=1.0.4) Filename: 1.0.4/zenoh-plugin-storage-manager_1.0.4_armel.deb Size: 1707348 MD5sum: 00ba335a4d2562b441107cc974f28ca6 SHA1: 0d4e57b44e4f719f3db935a1680864e20e4d18de SHA256: e25641981dac4c4b7bca6edc3d9274059b903fa863ee1ded91a1008034d64dbc 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: 1.0.4 Architecture: armhf Maintainer: zenoh-dev@eclipse.org Installed-Size: 7662 Depends: zenohd (=1.0.4) Filename: 1.0.4/zenoh-plugin-storage-manager_1.0.4_armhf.deb Size: 1693008 MD5sum: 8cc2d1f1c11a008d1c820a68c254e974 SHA1: b0645c55313a58c58637db76ba5e4c5e9817ba0c SHA256: b36f48cbed1b3c3bb038983e268277fa8775f375d879502c48babb539cb7a2f2 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: 1.0.4 Architecture: arm64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 9585 Depends: zenohd (=1.0.4) Filename: 1.0.4/zenoh-plugin-storage-manager_1.0.4_arm64.deb Size: 1815072 MD5sum: 359e2cb28f0470e34200e0a3dbaa866b SHA1: a6f3aba526a0a96dd083ae93faba063afc0ca5bb SHA256: 924c6bcadcaf22eb0c1fca86e7b8c776ec4152c570d8a1af269b5dea210b5122 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: 1.0.4 Architecture: armel Maintainer: zenoh-dev@eclipse.org Installed-Size: 17891 Filename: 1.0.4/zenohd_1.0.4_armel.deb Size: 4396096 MD5sum: 7082de4682f995c3cd100d0a9afd96ae SHA1: 08cf9643630a843c6616f58e9ed53305d4fdfcb3 SHA256: e84524800ab1bfe97928cecbe0f81569285dc910a37219519b58ec46a23b3e5b 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 --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. . Note that the REST plugin is added to the configuration by the default value of the `--rest-http-port` CLI argument. . **[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. . **[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: 1.0.4 Architecture: armhf Maintainer: zenoh-dev@eclipse.org Installed-Size: 17669 Filename: 1.0.4/zenohd_1.0.4_armhf.deb Size: 4452440 MD5sum: dc8756e333a29d476b517e9229c87584 SHA1: 7ed341f620198cb53aa43d5df2ddb47ddc84f7f1 SHA256: 34e529320a77570c011d3732c2eb01194d6da0dc334b48dfd0c6b52b0a1eef7a 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 --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. . Note that the REST plugin is added to the configuration by the default value of the `--rest-http-port` CLI argument. . **[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. . **[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: 1.0.4 Architecture: amd64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 18375 Filename: 1.0.4/zenohd_1.0.4_amd64.deb Size: 4491368 MD5sum: 7b6d90814c336d14c88b5383fede9524 SHA1: 10e93c8d69c5835768e6e89cfcc123a8a95607a4 SHA256: 6c891e9e4549c6dcb2dc1fdaae650d04e4af1b11d39a9e31a127c8f358deeba4 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 --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. . Note that the REST plugin is added to the configuration by the default value of the `--rest-http-port` CLI argument. . **[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. . **[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: 1.0.4 Architecture: arm64 Maintainer: zenoh-dev@eclipse.org Installed-Size: 16506 Filename: 1.0.4/zenohd_1.0.4_arm64.deb Size: 4040840 MD5sum: 529f08bab65c6a21da9c6f916b5cc6d8 SHA1: 0e6f55bbc891a4c465a43ae7831bbfdf47432254 SHA256: 540cb7a221dab8d85971301e14d04a97ae36352b12d87232fbd684db39205656 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 --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. . Note that the REST plugin is added to the configuration by the default value of the `--rest-http-port` CLI argument. . **[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. . **[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).