Differences between revisions 1 and 8 (spanning 7 versions)

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.
- https://helm.sh/docs/developing_charts/#hooks
- https://youtu.be/WugC_mbbiWU?t=1043
hooks
```
annotation:
  "helm.sh/hook": " "
```

-  ⇤ ← Revision 1 as of 2019-03-13 19:52:28 → 
  Size: 237
  Editor: PieterSmit
  Comment:
+   ← Revision 8 as of 2019-03-17 09:06:15 → ⇥
  Size: 1458
  Editor: PieterSmit
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 2:
- Links:
+ 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 ==
-Line 4:
+Line 22:
-Line 5:
+Line 24:
-Line 6:
+Line 26:
+ * 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.
   * https://helm.sh/docs/developing_charts/#hooks
   * https://youtu.be/WugC_mbbiWU?t=1043
 * hooks {{{
annotation:
  "helm.sh/hook": " "

}}}