Add support for creating PodMonitor or ServiceMonitor

[sagikazarmark]

Expected behaviour

Create PodMonitor/ServiceMonitor object for Redis and Sentinel.

Actual behaviour

Prometheus exporters are integrated into the RedisFailover CRD, but they still require PodMonitors or ServiceMonitors.

Proposed solution

Allow creating PodMonitor or ServiceMonitor resources along with exporters. For example:

apiVersion: databases.spotahome.com/v1
kind: RedisFailover
metadata:
  name: redis
spec:
  redis:
    exporter:
      enabled: true
    monitoring:
      podMonitor:
          enabled: true
  sentinel:
    exporter:
      enabled: true
    monitoring:
      podMonitor:
          enabled: true

Additional details

I'd be happy to draft a PR if you like the idea.

[github-actions]

This issue is stale because it has been open for 45 days with no activity.

[sagikazarmark]

Not stale

[github-actions]

This issue is stale because it has been open for 45 days with no activity.

[sagikazarmark]

Bump

[github-actions]

This issue is stale because it has been open for 45 days with no activity.

[sagikazarmark]

bump

[ese]

It would be great count with the feature if you want to make a PR :) @sagikazarmark

[Wouter0100]

This was closed by error, I'd say. @ese this feature request is regarding ServiceMonitors on the pods managed by the operator, not for the operator itself.

[sagikazarmark]

Indeed, I added it to the referenced PR by accident.

[sagikazarmark]

Resubmitted the issue, since I can't reopen it. I'll send a PR when I get there.