[jboss-jira] [JBoss JIRA] (WFWIP-254) Changes in volumeClaimTemplate triggers creation of a new statefulset

[Petr Kremensky (Jira)]

Petr Kremensky created WFWIP-254:
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             Summary: Changes in volumeClaimTemplate triggers creation of a new statefulset
                 Key: WFWIP-254
                 URL: https://issues.jboss.org/browse/WFWIP-254
             Project: WildFly WIP
          Issue Type: Bug
          Components: OpenShift
            Reporter: Petr Kremensky
            Assignee: Jeff Mesnil


Adding a volumeClaimTemplate, or existing an existing one leads to the re-creation of statefulset -> all pods are immediately terminated and route is unavailable until some of the pods is ready again.

*reproduce*
 * deploy operator {noformat}./build/run-openshift.sh{noformat}
 * deploy updatedquickstart project from operator repository {noformat}cat deploy/crds/quickstart-cr.yaml
apiVersion: wildfly.org/v1alpha1
kind: WildFlyServer
metadata:
  name: quickstart
spec:
  applicationImage: "quay.io/wildfly-quickstarts/wildfly-operator-quickstart:18.0"
  replicas: 2
  storage:
    volumeClaimTemplate:
      spec:
        resources:
          requests:
            storage: 1Mi
oc apply -f deploy/crds/quickstart-cr.yaml{noformat}
 * wait for both replicas to be ready & print ss creation timestamp & verify application readiness {noformat}oc get pods
NAME                                READY   STATUS    RESTARTS   AGE
quickstart-0                        1/1     Running   0          2m48s
quickstart-1                        1/1     Running   0          2m48s
wildfly-operator-54455dbcd8-flnd4   1/1     Running   0          69m

oc get statefulset.apps/quickstart --template={{.metadata.creationTimestamp}}
2019-10-17T13:55:03Z

curl quickstart-route-wildfly.apps-crc.testing
{"ip":"10.128.1.36"}
{noformat}
 * edit the storage field (e.g. storage: 1Mi -> storage: 2Mi)
 * notice the both pods are terminating, stateful set creation timestamp has changed and application route is not available until one of the pods will start again (could take a minute){noformat}oc get pods
NAME                                READY   STATUS        RESTARTS   AGE
quickstart-0                        1/1     Terminating   0          5m42s
quickstart-1                        1/1     Terminating   0          5m42s
wildfly-operator-54455dbcd8-flnd4   1/1     Running       0          72m

oc get statefulset.apps/quickstart --template={{.metadata.creationTimestamp}}
2019-10-17T14:00:44Z

curl quickstart-route-wildfly.apps-crc.testing
...
Application is not available
...
{noformat}




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