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How I setup my Kubernetes CI/CD pipeline for deploying my spring boot application

Being fairly new to Devops and going through the basics of Kubernetes, I wanted to setup the pipeline which automate the deployment of my Spring Boot application inside kubernetes cluster

And this how it achieved it

1. **Setup Kubernetes cluster** \- When it comes to learning new stuff I like to setup everything from scratch and prefer to have everything running on my laptop. Here are the list of thinks which you need if you want to run Kubernetes cluster on local development machine
1. **Virtual Box** \- This is the first tool you need to install if you are trying to setup your kubernetes cluster
2. **Vagrant** \- I love vagrant and its simplicity, you just need to define



Vagrant.configure("2") do |config|
config.vm.define "jenkinsserver" do |jenkinsserver|
jenkinsserver.vm.box_download_insecure = true
jenkinsserver.vm.box = "hashicorp/bionic64"
jenkinsserver.vm.network "forwarded_port", guest: 8080, host: 8080
jenkinsserver.vm.network "forwarded_port", guest: 8081, host: 8081
jenkinsserver.vm.network "forwarded_port", guest: 9090, host: 9090
jenkinsserver.vm.network "private_network", ip: "100.0.0.1"
jenkinsserver.vm.hostname = "jenkinsserver"
jenkinsserver.vm.provider "virtualbox" do |v|
v.name = "jenkinsserver"
v.memory = 2048
v.cpus = 2
end
end

config.vm.define "k8smaster" do |k8smaster|
k8smaster.vm.box_download_insecure = true
k8smaster.vm.box = "hashicorp/bionic64"
k8smaster.vm.network "private_network", ip: "100.0.0.2"
k8smaster.vm.hostname = "k8smaster"
k8smaster.vm.provider "virtualbox" do |v|
v.name = "k8smaster"
v.memory = 2048
v.cpus = 2
end
end

config.vm.define "k8sworker" do |k8sworker|
k8sworker.vm.box_download_insecure = true
k8sworker.vm.box = "hashicorp/bionic64"
k8sworker.vm.network "private_network", ip: "100.0.0.3"
k8sworker.vm.hostname = "k8sworker"
k8sworker.vm.provider "virtualbox" do |v|
v.name = "k8sworker"
v.memory = 2048
v.cpus = 2
end
end
end

3. **Kubespray -** They have done really good job at automating the kubernetes cluster setup using ansible. I would recommend to use kubespray, if you are a newbie like me to setup kubernetes cluster. Here is the lab session where i setup my own kubernetes cluster - [Lab session Demo](https://youtu.be/7dG3vZFjQsE)

4. **Docker** - Since you are working with Kubernetes then you must need Docker because kubernetes is Container orchestration tool. So go ahead and install docker on your local development laptop not in virtual machine

5. **Spring Boot Application** - Now after setting up kubernetes cluster now you need to have an application which you want to deploy inside kubernetes cluster. So I am using **Spring Boot Application**. You can do [Git Clone](https://github.com/rahulwagh/springboot-with-docker) .
In the Git Repository you will find the **Dockerfile** along with **docker-compose.yaml**, which you can user to build your Docker image of spring boot application.

6. **Push Spring Boot to Docker Hub** - Now you got your Spring Boot Application and its time to push your application into Docker Hub. Follow this [Lab Session](https://youtu.be/DFuxCSI4ktY)

7. **Install Jenkins** - Now you need to install Jenkins on the VMs. I prefer to install it on **amaster**(ansible node). Refer to this article [Install jenkins](https://jhooq.com/ci-cd-jenkins-kubernetes/#3-install-jenkins-on-your-jenkinsserve)

8. **Pipeline setup** - This is last step and it is going to be the long one but I prepared a [lab session](https://youtu.be/TPMUxsRI1OA) so that it is easy to understand.

Its

YouTube

kubespray Kubernetes Cluster setup - Part 3

==================================
Guide for installation instructions - https://jhooq.com/kubespray-12-steps-for-installing-a-production-ready-kubernetes-cluster/
==================================

This tutorial is for the ones who want to try out the…

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