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Redis backup and restore docker

Did you know that we can run Redis in a Docker container? This allows users to easily deploy as well as manage Redis instances.

According to our experts, we can easily back up and restore Redis data in Docker via several approaches. The most commonly used approach is to use Redis’ built-in backup and restore mechanisms along with Docker’s volume mapping feature. Let’s take a look at how we can accomplish this:

1. First, we have to create a Docker volume to store the Redis data as seen below:

   docker volume create redis-data
2. Next, we must run the following code to start a Redis container with the volume mapping:

   docker run -d --name redis -v redis-data:/data redis

   This will start a Redis container named redis and map the volume redis-data to the container’s “/data” directory.
3. At this point, we have to back up the Redis data with the following command:

   docker exec redis redis-cli save docker cp redis:/data/dump.rdb ./dump.rdb

   This will create a backup of the Redis data and copy the “dump.rdb” file generated by Redis to the local file system.
4. Finally, we can restore the Redis data as seen here:

   docker cp ./dump.rdb redis:/data/dump.rdb docker restart redis

   This will copy the “dump.rdb” file to the Redis container’s “/data” directory and restart the Redis container. This will automatically load the restored data from the “/data/dump.rdb” file.

Let us know in the comments if you need further help with the backup and restore of Redis data in Docker.

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Conclusion

In summary, our Support Techs demonstrated how to take a backup and restore of Redis data in Docker.