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79 lines
3 KiB
Markdown
---
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description: "Network driver plugins."
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keywords: "Examples, Usage, plugins, docker, documentation, user guide"
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---
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<!-- This file is maintained within the docker/cli GitHub
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repository at https://github.com/docker/cli/. 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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# Docker network driver plugins
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This document describes Docker Engine network driver plugins generally
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available in Docker Engine. To view information on plugins
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managed by Docker Engine, refer to [Docker Engine plugin system](index.md).
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Docker Engine network plugins enable Engine deployments to be extended to
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support a wide range of networking technologies, such as VXLAN, IPVLAN, MACVLAN
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or something completely different. Network driver plugins are supported via the
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LibNetwork project. Each plugin is implemented as a "remote driver" for
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LibNetwork, which shares plugin infrastructure with Engine. Effectively, network
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driver plugins are activated in the same way as other plugins, and use the same
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kind of protocol.
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## Network plugins and swarm mode
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[Legacy plugins](legacy_plugins.md) do not work in swarm mode. However,
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plugins written using the [v2 plugin system](index.md) do work in swarm mode, as
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long as they are installed on each swarm worker node.
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## Use network driver plugins
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The means of installing and running a network driver plugin depend on the
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particular plugin. So, be sure to install your plugin according to the
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instructions obtained from the plugin developer.
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Once running however, network driver plugins are used just like the built-in
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network drivers: by being mentioned as a driver in network-oriented Docker
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commands. For example,
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$ docker network create --driver weave mynet
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Some network driver plugins are listed in [plugins](legacy_plugins.md)
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The `mynet` network is now owned by `weave`, so subsequent commands
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referring to that network will be sent to the plugin,
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$ docker run --network=mynet busybox top
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## Find network plugins
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Network plugins are written by third parties, and are published by those
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third parties, either on
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[Docker Store](https://store.docker.com/search?category=network&q=&type=plugin)
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or on the third party's site.
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## Write a network plugin
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Network plugins implement the [Docker plugin
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API](plugin_api.md) and the network plugin protocol
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## Network plugin protocol
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The network driver protocol, in addition to the plugin activation call, is
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documented as part of libnetwork:
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[https://github.com/docker/libnetwork/blob/master/docs/remote.md](https://github.com/docker/libnetwork/blob/master/docs/remote.md).
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## Related Information
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To interact with the Docker maintainers and other interested users, see the IRC channel `#docker-network`.
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- [Docker networks feature overview](https://docs.docker.com/engine/userguide/networking/)
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- The [LibNetwork](https://github.com/docker/libnetwork) project
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