Operator multiple replicas

[wonderhoss]

Expected behaviour

redis-operator helm chart and example Deployment should either
a) use more than one replica
or
b) have documentation indicating that a single-replica Deployment is strictly required

Actual behaviour

Both helm chart and example YAML have a hard coded replicas: 1 without the documentation specifying whether this is a functional requirement or not.

Background

We tend to deploy operators and controllers as pairs of two (or more) replicase so that there is no gap in coverage when losing or replacing the node running the operator Pod.
The use of a hard-coded replicas: 1 in the helm chart along with a lack of leadership-election settings makes me suspect that the redis-operator currently can only run as a single-replica deployment, but can't verify either way.

[github-actions]

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

[github-actions]

This issue was closed because it has been inactive for 14 days since being marked as stale.

[Wouter0100]

Leader election was introduced in #438. I updated the Helm chart in #492.