replace sentinel with build in redis cluster support

[dzmitry-lahoda]

1. current sentinel can be replaced with cluster https://github.com/OT-CONTAINER-KIT/redis-operator/issues/122

2. this will allow for using kustomize to allow several redis (dev/staging) in same cluster

  sentinel.conf: |-
    dir "/tmp"
    bind 0.0.0.0
    port 26379
    sentinel monitor om-redis-master open-match-redis-node-0.open-match-redis-headless.open-match.svc.cluster.local 6379 2

3. eventually will lead to using several OMs in single cluster

4. build in better than manual, and cluster is supported by redis enterpris

5. best operator i have found is next https://github.com/OT-CONTAINER-KIT/redis-operator

[dzmitry-lahoda]

it seems harder to expose redis public when it is sentinel as sentinel routs to internal master ip..

[dzmitry-lahoda]

ok, made 1 replica and connected directly to master

[syntxerror]

Closing this issue due to duplicate of #1377. We likely will continue supporting sentinel in our efforts to add Redis cluster support.