grafana update to 9.3.1-bb.2 (Passthrough Update)

Package Merge Request

Package Changes

https://repo1.dso.mil/big-bang/product/packages/grafana/-/blob/9.3.1-bb.2/CHANGELOG.md

Package MR

big-bang/product/packages/grafana!205 (merged)

For Issue

Closes big-bang/product/packages/grafana#160 (closed)

Upgrade Notices

There are two major upgrade notices 1) passthrough refactor and 2) upgrade job for redeploying immutable deployment.

Passthrough Refactor: The grafana chart has been refactored to the Big Bang "passthrough" chart pattern - please read this upgrade notice is its entirety. All upstream chart value overrides in ./chart/values.yaml will need to be shifted under the upstream key.

Example:

Previous Values:

grafana:
  values:
    image:
     registry: registry1.dso.mil
     repository: ironbank/big-bang/grafana/grafana-plugins
     tag: "12.1.0"
 ...

Current Values:

grafana:
  values:
    upstream:
      image:
      registry: registry1.dso.mil
      repository: ironbank/big-bang/grafana/grafana-plugins
      tag: "12.1.0"
 ...

Please note, this change does not apply to Big Bang-added top-level keys, including: istio, networkPolicies, serviceMonitor, monitoring, openshift, enterprise, alertmanager, sso, autoRollingUpgrade, and bbtests.

Upgrade Job for Immutable Deployment: As apart of the conversion to the Big Bang passthrough chart pattern, immutable labels/selectors have been updated and will require a recreation of the Grafana deployment resource. Big Bang has added a job to automatically handle this as a pre-upgrade helm hook but requires an additional value to be set: .Values.autoRollingUpgrade.enabled

grafana:
  enabled: true
  ...
  values:
    autoRollingUpgrade:
      enabled: true

Alternatively, you may manually delete the grafana deployment prior to upgrade using standard kubectl commands kubectl delete deploy -l app.kubernetes.io/name=grafana -n monitoring but do note that drift detection must be disabled on the monitoring helm release to avoid recreation.