OpenShift and persistent Redis config

Question

I have successfully deployed Redis (persistent) image on my OpenShift installation. Now I want to persist the Redis configuration, and I have followed this instructions.

However, the Redis is started with this command inside a container: /opt/rh/rh-redis32/root/usr/bin/redis-server *:6379

I see that it should be started with the first argument as a path to the configuration file in order to configure itself on startup.

How can I achieve this in OpenShift?

Answer 1

I solved this issue with run commands specified in deployment config:

 containers:
        - name: redis
          image: >-
            centos/redis-32-centos7@sha256:7289ff47dd1c5bd24e6eefaf18cfbacf5ad68c0768f1b727a79c026bbef5a038
          command:
            - /opt/rh/rh-redis32/root/usr/bin/redis-server
            - /redis-master/redis.conf

Since this completly overrides default startup behaviof of the provided Docker image I had to add dir and requirepass configs to my config map:

dir /var/lib/redis/data
requirepass srid
maxmemory 2mb
maxmemory-policy allkeys-lru