step8.md

Commit invalid value to break the helm release

1. Set watching for pods (Cloud Shell)

watch kubectl get pod 

3. Commit broken image repository
   1. Open oracle-gitops-workshop repository in your GitHub webpage
   2. Go to clusters/default/flux-system/hello-kubernetes.yaml file
   3. Сlick on pencil to edit the file
   4. Under the values section and broken image repository and click on Commit changes

apiVersion: helm.toolkit.fluxcd.io/v2beta1
kind: HelmRelease
metadata:
  name: hello-kubernetes
  namespace: flux-system
spec:
  interval: 1m
  timeout: 1m
  chart:
    spec:
      chart: ./charts/hello-kubernetes
      sourceRef:
        kind: GitRepository
        name: oracle-gitops-workshop
      interval: 1m
  targetNamespace: default
  values:
    message: This is new one
    image:
      repository: not-exists
  valuesFrom:
  - kind: ConfigMap
    name: myconfig

4. Observe events in kubernetes dashboard (after ~1m)

Helm upgrade failed: timed out waiting for the condition

5. Observe flux dashboard for Failing Reconcilers is equal to 1 (after ~2 min)

6. Observe pods state (step 1), one pod will fail with ImagePullBackOff status

7. Revert change of broken image repository

   1. Open oracle-gitops-workshop repository in your GitHub webpage
   2. Go to clusters/default/flux-system/hello-kubernetes.yaml file
   3. Сlick on pencil to edit the file
   4. Under the values remove image section and click on Commit changes

apiVersion: helm.toolkit.fluxcd.io/v2beta1
kind: HelmRelease
metadata:
  name: hello-kubernetes
  namespace: flux-system
spec:
  interval: 1m
  timeout: 1m
  chart:
    spec:
      chart: ./charts/hello-kubernetes
      sourceRef:
        kind: GitRepository
        name: oracle-gitops-workshop
      interval: 1m
  targetNamespace: default
  values:
    message: This is new one
  valuesFrom:
  - kind: ConfigMap
    name: myconfig

8. Observe events in kubernetes dashboard (after ~1m)

Helm upgrade succeeded

9. Observe flux dashboard for Failing Reconcilers is equal to 0

10. Observe pods state (step 1) - all pods in Running state

Commit invalid value to break the helm release with remediation

1. Set watching for pods (Cloud Shell)

watch kubectl get pod 

2. Commit broken image repository
   1. Open oracle-gitops-workshop repository in your GitHub webpage
   2. Go to clusters/default/flux-system/hello-kubernetes.yaml file
   3. Сlick on pencil to edit the file
   4. Under the values section and broken image repository and click on Commit changes

apiVersion: helm.toolkit.fluxcd.io/v2beta1
kind: HelmRelease
metadata:
  name: hello-kubernetes
  namespace: flux-system
spec:
  interval: 1m
  timeout: 1m
  chart:
    spec:
      chart: ./charts/hello-kubernetes
      sourceRef:
        kind: GitRepository
        name: oracle-gitops-workshop
      interval: 1m
  targetNamespace: default
  values:
    message: This is new one
    image:
      repository: not-exists
  upgrade:
      remediation:
          remediateLastFailure: true
  valuesFrom:
  - kind: ConfigMap
    name: myconfig

3. Observe events in kubernetes dashboard (after ~1m)

Helm upgrade failed: timed out waiting for the condition

4. Observe flux dashboard for Failing Reconcilers is equal to 1

5. Observe pods state (step 1) all pods in ready state