55 lines
2.1 KiB
Markdown
55 lines
2.1 KiB
Markdown
Redis Docker image
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====================
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This container image includes Dockerfile for Redis 3.2 Docker image.
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Users can choose between RHEL and CentOS based images.
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Dockerfile for CentOS is called Dockerfile, Dockerfile for RHEL is called
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Dockerfile.rhel7.
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Environment variables and volumes
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----------------------------------
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| Variable name | Description |
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| :--------------------- | ----------------------------------------- |
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| `REDIS_PASSWORD` | Password for the server access |
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TBD
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You can also set the following mount points by passing the `-v /host:/container:Z` flag to Docker.
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| Volume mount point | Description |
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| :----------------------- | -------------------- |
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| `/var/lib/redis/data` | Redis data directory |
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**Notice: When mouting a directory from the host into the container, ensure that the mounted
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directory has the appropriate permissions and that the owner and group of the directory
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matches the user UID or name which is running inside the container.**
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Usage
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---------------------------------
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For this, we will assume that you are using the `rhscl/redis-32-rhel7` image.
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If you want to set only the mandatory environment variables and not store
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the database in a host directory, execute the following command:
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```
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$ docker run -d --name redis_database -p 6379:6379 rhscl/redis-32-rhel7
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```
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This will create a container named `redis_database`. Port 6379 will be exposed and mapped
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to the host.
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If you want your database to be persistent across container executions, also add a
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`-v /host/db/path:/var/lib/redis/data:Z` argument. This will be the Redis data directory.
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For protecting Redis data by a password, pass `REDIS_PASSWORD` environment variable
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to the container like this:
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```
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$ docker run -d --name redis_database -e REDIS_PASSWORD=strongpassword rhscl/redis-32-rhel7
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```
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**Warning: since Redis is pretty fast an outside user can try up to
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150k passwords per second against a good box. This means that you should
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use a very strong password otherwise it will be very easy to break.**
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