Prerequisits:

• Setup Kubernetes Ccuster
• Install and configure kubectl
• Install helm
• Add Jenkins helm repo (helm repo add jenkins https://charts.jenkins.io)
• Create Github OAuth application

Installation Steps:

1. Create the Persisten Volume Claim for persisting configurations settings

   kubectl apply -f <PVC definition file>
   kubectl apply -f storage.yaml
   

2. Create the Jenkins Configuration Secret with Github OAuth Client ID and Secret

   kubectl create secret <secret name> generic --from-literal=GITHUB_CLIENT_ID=<Github Client ID> --from-literal=GITHUB_CLIENT_SECRET=<Github Client Secret>
   kubectl create secret jenkins-config-secret generic --from-literal=GITHUB_CLIENT_ID=######### --from-literal=GITHUB_CLIENT_SECRET=#########
   

3. Install Jenkins using the helm chart

   helm install <instance-name> <chart> -f <configuration overrides file>
   helm install jenkins-demo jenkins/jenkins -f values.yaml
   

4. Get the LoadBalancer Ingress IP

   kubectl describe service <service name>
   kubectl describe service jenkins-demo
   

5. Create/Update the Github OAuth application with Ingress IP

   https://github.com/settings/applications/<Application ID>

6. Open Jenkins

   http://<Ingress IP>:80/login