K8SPG-454: set ready status when all pg pods are updated

[pooknull]

https://perconadev.atlassian.net/browse/K8SPG-454

DESCRIPTION

Problem:
When pg instances are updated, the cluster status constantly switches between the initializing and ready states.

Cause:
The operator sets the ready status when all pg pods are ready. They are updated one by one. After each update, all pods are ready, so the operator switches to the ready state.

Solution:
Set the ready state when the sum of .status.instances[].updatedReplicas from crunchy's PostgresCluster is equal to the .status.postgres.size.

CHECKLIST

Jira

• Is the Jira ticket created and referenced properly?
• Does the Jira ticket have the proper statuses for documentation (Needs Doc) and QA (Needs QA)?
• Does the Jira ticket link to the proper milestone (Fix Version field)?

Tests

• Is an E2E test/test case added for the new feature/change?
• Are unit tests added where appropriate?

Config/Logging/Testability

• Are all needed new/changed options added to default YAML files?
• Did we add proper logging messages for operator actions?
• Did we ensure compatibility with the previous version or cluster upgrade process?
• Does the change support oldest and newest supported PG version?
• Does the change support oldest and newest supported Kubernetes version?

[egegunes]

hmm in other operators we didn't have this field and didn't have the same problem. I wonder what's the difference?

[pooknull]

hmm in other operators we didn't have this field and didn't have the same problem. I wonder what's the difference?

I have removed this new field: 4e1cd4a

[JNKPercona]

Test name	Status
custom-extensions	passed
demand-backup	passed
finalizers	passed
init-deploy	passed
major-upgrade	passed
monitoring	passed
one-pod	passed
operator-self-healing	passed
pitr	passed
scaling	passed
scheduled-backup	passed
self-healing	passed
start-from-backup	passed
tablespaces	passed
telemetry-transfer	passed
upgrade-consistency	passed
upgrade-minor	passed
users	passed
We run 18 out of 18

commit: 3b669b5
image: perconalab/percona-postgresql-operator:PR-869-3b669b58d