# Supported tags and respective `Dockerfile` links - [`2.6.17`, `2.6` (*2.6/Dockerfile*)](https://github.com/docker-library/redis/blob/7d9f53256f8e13aa4dff2112145c69c22f8ce394/2.6/Dockerfile) - [`2.6.17-32bit`, `2.6-32bit` (*2.6/32bit/Dockerfile*)](https://github.com/docker-library/redis/blob/7d9f53256f8e13aa4dff2112145c69c22f8ce394/2.6/32bit/Dockerfile) - [`2.8.23`, `2.8`, `2` (*2.8/Dockerfile*)](https://github.com/docker-library/redis/blob/7d9f53256f8e13aa4dff2112145c69c22f8ce394/2.8/Dockerfile) - [`2.8.23-32bit`, `2.8-32bit`, `2-32bit` (*2.8/32bit/Dockerfile*)](https://github.com/docker-library/redis/blob/7d9f53256f8e13aa4dff2112145c69c22f8ce394/2.8/32bit/Dockerfile) - [`3.0.6`, `3.0`, `3`, `latest` (*3.0/Dockerfile*)](https://github.com/docker-library/redis/blob/7d9f53256f8e13aa4dff2112145c69c22f8ce394/3.0/Dockerfile) - [`3.0.6-32bit`, `3.0-32bit`, `3-32bit`, `32bit` (*3.0/32bit/Dockerfile*)](https://github.com/docker-library/redis/blob/7d9f53256f8e13aa4dff2112145c69c22f8ce394/3.0/32bit/Dockerfile) For more information about this image and its history, please see [the relevant manifest file (`library/redis`)](https://github.com/docker-library/official-images/blob/master/library/redis). 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 `redis/tag-details.md` file](https://github.com/docker-library/docs/blob/master/redis/tag-details.md) in [the `docker-library/docs` GitHub repo](https://github.com/docker-library/docs). # What is Redis? Redis is an open-source, networked, in-memory, key-value data store with optional durability. It is written in ANSI C. The development of Redis has been sponsored by Pivotal since May 2013; before that, it was sponsored by VMware. According to the monthly ranking by DB-Engines.com, Redis is the most popular key-value store. The name Redis means REmote DIctionary Server. > [wikipedia.org/wiki/Redis](https://en.wikipedia.org/wiki/Redis) ![logo](https://raw.githubusercontent.com/docker-library/docs/master/redis/logo.png) # How to use this image ## start a redis instance ```console $ docker run --name some-redis -d redis ``` This image includes `EXPOSE 6379` (the redis port), so standard container linking will make it automatically available to the linked containers (as the following examples illustrate). ## start with persistent storage ```console $ docker run --name some-redis -d redis redis-server --appendonly yes ``` If persistence is enabled, data is stored in the `VOLUME /data`, which can be used with `--volumes-from some-volume-container` or `-v /docker/host/dir:/data` (see [docs.docker volumes](http://docs.docker.com/userguide/dockervolumes/)). For more about Redis Persistence, see [http://redis.io/topics/persistence](http://redis.io/topics/persistence). ## connect to it from an application ```console $ docker run --name some-app --link some-redis:redis -d application-that-uses-redis ``` ## ... or via `redis-cli` ```console $ docker run -it --link some-redis:redis --rm redis sh -c 'exec redis-cli -h "$REDIS_PORT_6379_TCP_ADDR" -p "$REDIS_PORT_6379_TCP_PORT"' ``` ## Additionally, If you want to use your own redis.conf ... You can create your own Dockerfile that adds a redis.conf from the context into /data/, like so. ```dockerfile FROM redis COPY redis.conf /usr/local/etc/redis/redis.conf CMD [ "redis-server", "/usr/local/etc/redis/redis.conf" ] ``` Alternatively, you can specify something along the same lines with `docker run` options. ```console $ docker run -v /myredis/conf/redis.conf:/usr/local/etc/redis/redis.conf --name myredis redis redis-server /usr/local/etc/redis/redis.conf ``` Where `/myredis/conf/` is a local directory containing your `redis.conf` file. Using this method means that there is no need for you to have a Dockerfile for your redis container. ## `32bit` variant This variant is *not* a 32bit image (and will not run on 32bit hardware), but includes Redis compiled as a 32bit binary, especially for users who need the decreased memory requirements associated with that. See ["Using 32 bit instances"](http://redis.io/topics/memory-optimization#using-32-bit-instances) in the Redis documentation for more information. # License View [license information](http://redis.io/topics/license) 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 [`redis/` directory](https://github.com/docker-library/docs/tree/master/redis) 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/redis/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/redis/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.