SPL-290971: add defaultkvstoretype in crd spec

[jmsplunk]

Description

Add the spec defaultkvstoretype to the CRDs. Later ansible will check the env variables and update the server.conf in the instance.

Key Changes

• Add the defaultkvstoretype in the common spec
• The ENV will pick up the spec and update the env variable
• The ansible will check the env variables and update the server.conf in the instance. (not implemented yet)

Testing and Verification

Deployed a standalone using

cat <<EOF | kubectl apply -n splunk-operator -f -
apiVersion: enterprise.splunk.com/v4
kind: Standalone
metadata:
  name: test-kvstore
  namespace:  splunk-operator
spec:
  replicas: 1
  defaultKVStoreType: "externalManaged"
EOF

and we can see it accepts the spec and can find it in the env

root@ip-10-236-5-61:~/splunk-operator# kubectl get pods -n splunk-operator
NAME                                                  READY   STATUS    RESTARTS   AGE
splunk-operator-controller-manager-68f7cf68f8-wl9ch   1/1     Running   0          56s
splunk-test-kvstore-standalone-0                      0/1     Running   0          23s
  
  
root@ip-10-236-5-61:~/splunk-operator# kubectl describe pod splunk-test-kvstore-standalone-0 -n splunk-operator | grep SPLUNK_KVSTORE_TYPE
      SPLUNK_KVSTORE_TYPE:                           externalManaged

Related Issues

Jira tickets, GitHub issues, Support tickets...

PR Checklist

• Code changes adhere to the project's coding standards.
• Relevant unit and integration tests are included.
• Documentation has been updated accordingly.
• All tests pass locally.
• The PR description follows the project's guidelines.

[patrykw-splunk]

Hey, please add description and rest of necessary fields