Kubernetes helm chart notes
Links: Azure/Kubernetes
Install 2019-03
- Ran official curl, and get_helm, all fine
- When deploying chart got an error, tiller not allowed to create namespaces.
Fixed with command belown and helm init --upgrade
kubectl create serviceaccount --namespace kube-system tiller serviceaccount "tiller" created kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller clusterrolebinding "tiller-cluster-rule" created kubectl patch deploy --namespace kube-system tiller-deploy -p '{"spec":{"template":{"spec":{"serviceAccount":"tiller"}'- deployment "tiller-deploy" patched
}}}
Run 2019-02
- helm install --name p1 git/helmchart/ --namespace piet --set "env=DEV" --timeout 600
- Run: helm ls --all p1; to check the status of the release
- run: helm del --purge p1; to delete it
- helm status p1
- helm history p1
- helm rollback p1 3; roll back to version 3
- helm rollback; to last successfully DEPLOYED revision
- helm upgrade --debug --dry-run
- helm upgrade --install
Tricks
- Use checksum of config map to change app annotation and force a new version to be deployed for apps that do not pick up new configs.
hooks
annotation: "helm.sh/hook": " "