Issue
You forgot to backup your helm values file used when you originally installed CloudBees CI or CloudBees CD via helm, and you’re not sure what values to use when upgrading to a newer release.
Resolution
The helm values file used during the initial install is still available as long as the product is still installed, even if you don’t have it in source control somewhere. The first step is to run:
helm list --all-namespaces
You should see some output such as:
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION cloudbees-core cloudbees-core 46 2021-04-19 15:35:57.493384046 +1000 +1000 deployed cloudbees-sda-1.270+625596de7f32 10.1.0.145850+2.277.2.
Now we need to use the release name (NAME) and the namespace (NAMESPACE) from that output to get the values, using the helm get values command:
helm get values $RELEASE_NAME -n $NAMESPACE > values-prod.yaml ## for example: helm get values cloudbees-core -n cloudbees-core > values-prod.yaml
We should then check in that values-prod.yaml to source control, and we can use that as a basis for the values when running an upgrade, or installing a 'dev' environment based on the current production values files (after modifying values such as the hostname).
you can also get the values used for a specific revision (not just the latest) with helm history $RELEASE_NAME -n $NAMESPACE. That gives you the list of revisions and then you can run helm get values cloudbees-core -n cloudbees-core --revision <revisionNumber>. Helm keeps only 10 revisions in its history by default, unless you use the option --history-max when you upgrade.
|