jenkins-kaniko-kustomize

Preparation & Setup

You will need to have a laptop (Windows, Linux or Mac), it is preferred for your machine to have at least 8GB of RAM. This isn't strictly required but highly recommended. Working with VMs and Containers is resource intensive, no way to get around it.

This workshop requires that you have the following installed on your machine:

• Virtualbox
• Minikube

In order to speed up the setup process, we also recommend you to download the VMs & containers required during the workshop.

Setting up Kubectl

Kubectl is the CLI controller app for kubernetes. You will use to interact with all the kubernetes cluster. Therefore it is required to be able to perform any task during the workshop.

Here how to install it

Setting up Kustomize

Kustomize is needed to ease the handling and the customization of multiple manifest files.

Here how to install it

Setting up minikube

Minikube is a simple one-node installation of Kubernetes specifically designed to work on your local machine.

Do the following commands to setup the minikube installation:

minikube start --cpus=4, this will setup the minikube VM

Setup Registry Credential

export REGISTRY_SERVER=https://index.docker.io/v1/

# Replace `[...]` with the registry username
export REGISTRY_USER=[...]

# Replace `[...]` with the registry password
export REGISTRY_PASS=[...]

# Replace `[...]` with the registry email
export REGISTRY_EMAIL=[...]

Install Jenkins

helm repo add jenkinsci https://charts.jenkins.io

helm repo update

helm upgrade --install \
    jenkins jenkinsci/jenkins \
    --namespace jenkins \
    --create-namespace \
    --values jenkins-values.yaml \
    --wait

Configure cluster for Jenkins

kubectl --namespace jenkins \
    create secret \
    docker-registry regcred \
    --docker-server $REGISTRY_SERVER \
    --docker-username $REGISTRY_USER \
    --docker-password $REGISTRY_PASS \
    --docker-email $REGISTRY_EMAIL

kubectl apply --filename roles.yaml

Login and change password

• Retrieve the initial administrator password with the Command Prompt: kubectl --namespace jenkins get secret jenkins --output jsonpath="{.data.jenkins-admin-password}" | base64 --decode && echo
• Create port-forward tunnel: kubectl port-forward svc/jenkins -n jenkins 8080:8080
• Goto the Jenkins url: http://localhost:8080
• Enter admin and the initial administrator password

Create branch main and test on your repository

Create a Jenkins pipeline

Configure Pipeline

• Goto the Jenkins URL: http://localhost:8080
• Click: New Item
• Enter item name: Pipeline
• Select: Multibranch Pipeline
• Click: OK
• Branch Sources: Git
• Project Repository: https://github.com/nikever/kubernetes-hello-app-delivery.git
• Build Configuration: Jenkinsfile
• Script Path: jenkins-kaniko-kustomize/Jenkinsfile
• Enable Discard Old Builds
• Click: Save

IMPORTANT! After save, Jenkins scan branch and build pipeline automatically. Stop build pipeline and trigger it manually.