Redis Service should always point to redis master

[Rastusik]

Hi,

would it be possible to create a mechanism, which would create a redis-master-server service which would always point only to the redis master?

I'm thinking about dynamic labels changing for each redis-server pod... only the master pod would have the redis-master: true label and the redis-master-service would have set its selector to redis-master: true

[Rastusik]

This possibly looks like a good solution too https://stackoverflow.com/questions/29226725/how-should-applciation-using-active-passive-redundant-model-be-containerized-usi

[gytisgreitai]

We use haproxy with custom healthcheck for that. But this could probably be simply implemented as a shell script for readiness probe:

    backend bk_redis
      option tcp-check
      tcp-check send PING\r\n
      tcp-check expect string +PONG
      tcp-check send info\ replication\r\n
      tcp-check expect string role:master
      tcp-check send QUIT\r\n
      tcp-check expect string +OK