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222 lines
5.1 KiB
Markdown
222 lines
5.1 KiB
Markdown
---
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aliases: [
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"/engine/extend/"
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]
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title: "Plugin config"
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description: "How develop and use a plugin with the managed plugin system"
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keywords: "API, Usage, plugins, documentation, developer"
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---
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<!-- This file is maintained within the docker/docker Github
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repository at https://github.com/docker/docker/. Make all
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pull requests against that repo. If you see this file in
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another repository, consider it read-only there, as it will
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periodically be overwritten by the definitive file. Pull
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requests which include edits to this file in other repositories
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will be rejected.
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-->
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# Plugin Config Version 0 of Plugin V2
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This document outlines the format of the V0 plugin configuration. The plugin
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config described herein was introduced in the Docker daemon in the [v1.12.0
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release](https://github.com/docker/docker/commit/f37117045c5398fd3dca8016ea8ca0cb47e7312b).
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Plugin configs describe the various constituents of a docker plugin. Plugin
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configs can be serialized to JSON format with the following media types:
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Config Type | Media Type
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------------- | -------------
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config | "application/vnd.docker.plugin.v0+json"
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## *Config* Field Descriptions
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Config provides the base accessible fields for working with V0 plugin format
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in the registry.
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- **`description`** *string*
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description of the plugin
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- **`documentation`** *string*
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link to the documentation about the plugin
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- **`interface`** *PluginInterface*
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interface implemented by the plugins, struct consisting of the following fields
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- **`types`** *string array*
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types indicate what interface(s) the plugin currently implements.
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currently supported:
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- **docker.volumedriver/1.0**
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- **docker.authz/1.0**
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- **`socket`** *string*
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socket is the name of the socket the engine should use to communicate with the plugins.
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the socket will be created in `/run/docker/plugins`.
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- **`entrypoint`** *string array*
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entrypoint of the plugin, see [`ENTRYPOINT`](../reference/builder.md#entrypoint)
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- **`workdir`** *string*
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workdir of the plugin, see [`WORKDIR`](../reference/builder.md#workdir)
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- **`network`** *PluginNetwork*
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network of the plugin, struct consisting of the following fields
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- **`type`** *string*
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network type.
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currently supported:
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- **bridge**
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- **host**
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- **none**
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- **`capabilities`** *array*
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capabilities of the plugin (*Linux only*), see list [`here`](https://github.com/opencontainers/runc/blob/master/libcontainer/SPEC.md#security)
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- **`mounts`** *PluginMount array*
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mount of the plugin, struct consisting of the following fields, see [`MOUNTS`](https://github.com/opencontainers/runtime-spec/blob/master/config.md#mounts)
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- **`name`** *string*
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name of the mount.
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- **`description`** *string*
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description of the mount.
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- **`source`** *string*
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source of the mount.
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- **`destination`** *string*
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destination of the mount.
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- **`type`** *string*
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mount type.
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- **`options`** *string array*
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options of the mount.
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- **`devices`** *PluginDevice array*
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device of the plugin, (*Linux only*), struct consisting of the following fields, see [`DEVICES`](https://github.com/opencontainers/runtime-spec/blob/master/config-linux.md#devices)
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- **`name`** *string*
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name of the device.
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- **`description`** *string*
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description of the device.
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- **`path`** *string*
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path of the device.
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- **`env`** *PluginEnv array*
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env of the plugin, struct consisting of the following fields
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- **`name`** *string*
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name of the env.
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- **`description`** *string*
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description of the env.
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- **`value`** *string*
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value of the env.
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- **`args`** *PluginArgs*
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args of the plugin, struct consisting of the following fields
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- **`name`** *string*
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name of the env.
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- **`description`** *string*
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description of the env.
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- **`value`** *string array*
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values of the args.
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## Example Config
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*Example showing the 'tiborvass/no-remove' plugin config.*
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```
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{
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"description": "A test plugin for Docker",
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"documentation": "https://docs.docker.com/engine/extend/plugins/",
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"entrypoint": ["plugin-no-remove", "/data"],
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"interface" : {
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"types": ["docker.volumedriver/1.0"],
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"socket": "plugins.sock"
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},
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"network": {
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"type": "host"
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},
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"mounts": [
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{
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"source": "/data",
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"destination": "/data",
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"type": "bind",
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"options": ["shared", "rbind"]
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},
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{
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"destination": "/foobar",
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"type": "tmpfs"
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}
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],
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"args": {
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"name": "args",
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"description": "command line arguments",
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"value": []
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},
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"env": [
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{
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"name": "DEBUG",
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"description": "If set, prints debug messages",
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"value": "1"
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}
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],
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"devices": [
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{
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"name": "device",
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"description": "a host device to mount",
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"path": "/dev/cpu_dma_latency"
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}
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]
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}
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```
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