mas update fails in the update-mongodb task for SNO

[mudspringhiker]

When running mas update for MAS in SNO, it fails in the update-mongodb task, waiting for mas-mongo-ce stateful set to be ready. MongoDBCommunity CR status is "Pending".

status:
  currentMongoDBMembers: 1
  currentStatefulSetReplicas: 1
  message: ReplicaSet is not yet ready, retrying in 10 seconds
  mongoUri: mongodb://mas-mongo-ce-0.mas-mongo-ce-svc.mongoce.svc.cluster.local:27017/?replicaSet=mas-mongo-ce
  phase: Pending
  version: 5.0.23

It appears that MongoDBCommunity CR spec.members is 3. Comparing this to a different, newly installed MAS on SNO, its MongoDBCommunity CR spec.members is 1. Changing the spec.members in the instance being updated above to 1 fixed the issue.

[terenceq]

By default the mongo role will set the number of replicas to three. To override this behavior the environment variable MONGODB_REPLICAS can be set to one.

https://ibm-mas.github.io/ansible-devops/roles/mongodb/#mongodb_replicas

[terenceq]

I've reopened this issue as @mudspringhiker has reproduced it. I appears that mas update is not passing the env var MONGODB_REPLICAS to the mongodb role.

[istrate]

Worked tracked in: #941

[durera]

Delivered in #941, new release pending