janavenkat/jenkin

Setup Jenkins with JCasc on top Kubernetes

Requirements and tested on these versions:

- Minikube(v1.1.1)
    - Virtualbox or KVM
- Kubectl(v1.11.7)
- Helm(v2.11.0)

Deployment

1. Follow this official guide to deploy Minikube locally https://kubernetes.io/docs/tasks/tools/install-minikube/

2. minikube start --cpus 2 --memory 4000

3. After up and running you can find the kubeconfig file in ~/.kube/config

4. minikube status make sure all components are up and running

   Clone the repo

   git clone https://github.com/janavenkat/jenkin.git

   cd jenkin

5. Install tiller in minikube by following this command

   helm init

6. Install helm jenkins chart

   helm install --name jenkins jenkins/.

7. To get minikube IP

   minikube ip

8. Wait for until jenkins pod up and running

   kubectl get pods

9. Get the nodeport for jenkins to access it from browser

   kubectl get --namespace default -o jsonpath="{.spec.ports[0].nodePort}" services jenkins

10. Enter your minikube ip with port example http://192.168.99.100:31995

11. Get credentials for jenkins.

    username: admin

    to get the password execute this command

    printf $(kubectl get secret --namespace default jenkins -o jsonpath="{.data.jenkins-admin-password}" | base64 --decode);echo

12. After successfully logged-in have to approve our script to run our job

Go to Manage Jenkins

Now search for in process script approval need to approve the script in order to run our job

13. Now it's time to run the job

14. After successfull job run, pipeline view

#Information

Local Helm chart is pre-configured with JCasc job and dependencies and also for the job project configure from this repo https://github.com/mendix/pluggable-widgets-typing-generator

the workers are dynamically created on-demand in kubernetes as a pod

All changes for this deployment are in jenkins/values.yaml

1. Changes for minikube deployment

   jenkin/jenkins/values.yaml

   Line 93 in 213245f

   serviceType: NodePort

2. JcasC changes

   jenkin/jenkins/values.yaml

   Line 206 in 213245f

   JCasC:

3. Pipeline job configuration

   jenkin/jenkins/values.yaml

   Line 234 in 213245f

   jobs:

#Additional one deployed on GKE k8's

Password is encrypted like kubernetes secret you know how to use :) it