This is a single redis container, which is NOT suited for HA setups. Redis is a popular in-memory data structure store, used as database, cache and message broker. See documentation for more details: https://github.com/dcos/examples/tree/master/redis
This DC/OS Service is currently in preview. There may be bugs, incomplete features, incorrect documentation, or other discrepancies. Redis requires a single node with 300MB of RAM and 0.1 CPUs.