# Supported tags and respective `Dockerfile` links

-	[`3.6.0`, `3.6`, `3`, `latest` (*Dockerfile*)](https://github.com/docker-library/rabbitmq/blob/f9b15d74ffafa31e028d9218aebfc9b3eac45e40/Dockerfile)
-	[`3.6.0-management`, `3.6-management`, `3-management`, `management` (*management/Dockerfile*)](https://github.com/docker-library/rabbitmq/blob/f9b15d74ffafa31e028d9218aebfc9b3eac45e40/management/Dockerfile)

For more information about this image and its history, please see [the relevant manifest file (`library/rabbitmq`)](https://github.com/docker-library/official-images/blob/master/library/rabbitmq). This image is updated via pull requests to [the `docker-library/official-images` GitHub repo](https://github.com/docker-library/official-images).

For detailed information about the virtual/transfer sizes and individual layers of each of the above supported tags, please see [the `rabbitmq/tag-details.md` file](https://github.com/docker-library/docs/blob/master/rabbitmq/tag-details.md) in [the `docker-library/docs` GitHub repo](https://github.com/docker-library/docs).

# What is RabbitMQ?

RabbitMQ is open source message broker software (sometimes called message-oriented middleware) that implements the Advanced Message Queuing Protocol (AMQP). The RabbitMQ server is written in the Erlang programming language and is built on the Open Telecom Platform framework for clustering and failover. Client libraries to interface with the broker are available for all major programming languages.

> [wikipedia.org/wiki/RabbitMQ](https://en.wikipedia.org/wiki/RabbitMQ)

![logo](https://raw.githubusercontent.com/docker-library/docs/81187b7b50f5af5bdb64d75882f4d9c782ad52c3/rabbitmq/logo.png)

# How to use this image

## Running the daemon

One of the important things to note about RabbitMQ is that it stores data based on what it calls the "Node Name", which defaults to the hostname. What this means for usage in Docker is that we should specify `-h`/`--hostname` explicitly for each daemon so that we don't get a random hostname and can keep track of our data:

```console
$ docker run -d --hostname my-rabbit --name some-rabbit rabbitmq:3
```

If you give that a minute, then do `docker logs some-rabbit`, you'll see in the output a block similar to:

	=INFO REPORT==== 6-Jul-2015::20:47:02 ===
	node           : rabbit@my-rabbit
	home dir       : /var/lib/rabbitmq
	config file(s) : /etc/rabbitmq/rabbitmq.config
	cookie hash    : UoNOcDhfxW9uoZ92wh6BjA==
	log            : tty
	sasl log       : tty
	database dir   : /var/lib/rabbitmq/mnesia/rabbit@my-rabbit

Note the `database dir` there, especially that it has my "Node Name" appended to the end for the file storage. This image makes all of `/var/lib/rabbitmq` a volume by default.

### Erlang Cookie

See the [RabbitMQ "Clustering Guide"](https://www.rabbitmq.com/clustering.html#erlang-cookie) for more information about cookies and why they're necessary.

For setting a consistent cookie (especially useful for clustering but also for remote/cross-container administration via `rabbitmqctl`), use `RABBITMQ_ERLANG_COOKIE`:

```console
$ docker run -d --hostname my-rabbit --name some-rabbit -e RABBITMQ_ERLANG_COOKIE='secret cookie here' rabbitmq:3
```

This can then be used from a separate instance to connect:

```console
$ docker run -it --rm --link some-rabbit:my-rabbit -e RABBITMQ_ERLANG_COOKIE='secret cookie here' rabbitmq:3 bash
root@f2a2d3d27c75:/# rabbitmqctl -n rabbit@my-rabbit list_users
Listing users ...
guest   [administrator]
```

Alternatively, one can also use `RABBITMQ_NODENAME` to make repeated `rabbitmqctl` invocations simpler:

```console
$ docker run -it --rm --link some-rabbit:my-rabbit -e RABBITMQ_ERLANG_COOKIE='secret cookie here' -e RABBITMQ_NODENAME=rabbit@my-rabbit rabbitmq:3 bash
root@f2a2d3d27c75:/# rabbitmqctl list_users
Listing users ...
guest   [administrator]
```

### Management Plugin

There is a second set of tags provided with the [management plugin](https://www.rabbitmq.com/management.html) installed and enabled by default, which is available on the standard management port of 15672, with the default username and password of `guest` / `guest`:

```console
$ docker run -d --hostname my-rabbit --name some-rabbit rabbitmq:3-management
```

You can access it by visiting `http://container-ip:15672` in a browser or, if you need access outside the host, on port 8080:

```console
$ docker run -d --hostname my-rabbit --name some-rabbit -p 8080:15672 rabbitmq:3-management
```

You can then go to `http://localhost:8080` or `http://host-ip:8080` in a browser.

## Setting default user and password

If you wish to change the default username and password of `guest` / `guest`, you can do so with the `RABBITMQ_DEFAULT_USER` and `RABBITMQ_DEFAULT_PASS` environmental variables:

```console
$ docker run -d --hostname my-rabbit --name some-rabbit -e RABBITMQ_DEFAULT_USER=user -e RABBITMQ_DEFAULT_PASS=password rabbitmq:3-management
```

You can then go to `http://localhost:8080` or `http://host-ip:8080` in a browser and use `user`/`password` to gain access to the management console

## Setting default vhost

If you wish to change the default vhost, you can do so wiht the `RABBITMQ_DEFAULT_VHOST` environmental variables:

```console
$ docker run -d --hostname my-rabbit --name some-rabbit -e RABBITMQ_DEFAULT_VHOST=my_vhost rabbitmq:3-management
```

## Connecting to the daemon

```console
$ docker run --name some-app --link some-rabbit:rabbit -d application-that-uses-rabbitmq
```

# License

View [license information](https://www.rabbitmq.com/mpl.html) for the software contained in this image.

# Supported Docker versions

This image is officially supported on Docker version 1.9.1.

Support for older versions (down to 1.6) is provided on a best-effort basis.

Please see [the Docker installation documentation](https://docs.docker.com/installation/) for details on how to upgrade your Docker daemon.

# User Feedback

## Documentation

Documentation for this image is stored in the [`rabbitmq/` directory](https://github.com/docker-library/docs/tree/master/rabbitmq) of the [`docker-library/docs` GitHub repo](https://github.com/docker-library/docs). Be sure to familiarize yourself with the [repository's `README.md` file](https://github.com/docker-library/docs/blob/master/README.md) before attempting a pull request.

## Issues

If you have any problems with or questions about this image, please contact us through a [GitHub issue](https://github.com/docker-library/rabbitmq/issues).

You can also reach many of the official image maintainers via the `#docker-library` IRC channel on [Freenode](https://freenode.net).

## Contributing

You are invited to contribute new features, fixes, or updates, large or small; we are always thrilled to receive pull requests, and do our best to process them as fast as we can.

Before you start to code, we recommend discussing your plans through a [GitHub issue](https://github.com/docker-library/rabbitmq/issues), especially for more ambitious contributions. This gives other contributors a chance to point you in the right direction, give you feedback on your design, and help you find out if someone else is working on the same thing.
