Kubernetes Project

Step 1: Create Ubuntu EC2 & Install the Jenkins Server

Ubuntu 24.04 AMI t2.medium ALL TCP

Update all software packages on Ubuntu server

sudo su - root sudo apt-get update sudo apt-get upgrade

Install Java on Ubuntu server

sudo apt-get install default-jdk java -version

Jenkins Installation

Install Jenkins on Ubuntu server using the Link Jenkins Access Jenkins Url with Public ip on port 8080 cat /var/lib/jenkins/secrets/initialAdminPassword Install the Suggested Plugins Setup UserName and Password

Step 2: Get to know about Python Code and Create GitHub Repo

Developer Actions

Create a Empty Github Repository switch to root dir mkdir DeveloperDir cd DeveloperDir/ vi main.py vi pod.yaml vi requirements.txt vi Dockerfile vi form.html

Push to files to Github

git init git add . git commit -m "First commit" git remote add origin https://github.com/Iam-mithran/SaturdayProject git push origin master Generate a access Classic token from the GitHub Repo Settings

Step 3: Create a Jenkins Pipeline Job And clone the Repo

Create a Pipeline Job

Install Stageview plugin from manageJenkins -> Plugins -> Available plugins

pipeline { agent any stages { stage('Pull Code From GitHub') { steps { git 'https://github.com/Iam-mithran/SaturdayProject.git' } } } }

Step 4: Containerize the Python app and publish to DockerHub

Docker Installation

sudo apt install docker.io Open DockerHub account docker login

Give Jenkins Permission to run sudo commands

vi /etc/sudoers jenkins ALL=(ALL) NOPASSWD: ALL exit sudo su - root

Run the three stages in Jenkinsfile

pipeline { agent any

stages {
    stage('Pull Code From GitHub') {
        steps {
            git 'https://github.com/Iam-mithran/SaturdayProject.git'
        }
    }
    stage('Build the Docker image') {
        steps {
            sh 'sudo docker build -t weekendimage /var/lib/jenkins/workspace/weekendproj'
            sh 'sudo docker tag weekendimage iammithran/weekendimage:latest'
            sh 'sudo docker tag weekendimage iammithran/weekendimage:${BUILD_NUMBER}'
        }
    }
    stage('Push the Docker image') {
        steps {
            sh 'sudo docker image push iammithran/weekendimage:latest'
            sh 'sudo docker image push iammithran/weekendimage:${BUILD_NUMBER}'
        }
    }
}

}

Step 5: Create Kubernetes Cluster

Install Kops

curl -Lo kops https://github.com/kubernetes/kops/releases/download/$(curl -s https://api.github.com/repos/kubernetes/kops/releases/latest | grep tag_name | cut -d '"' -f 4)/kops-linux-amd64 chmod +x ./kops sudo mv ./kops /usr/local/bin/

Install kubectl

curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl chmod +x ./kubectl sudo mv ./kubectl /usr/local/bin/kubectl

AWS CLI Installation

curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" sudo apt install unzip unzip awscliv2.zip sudo ./aws/install --bin-dir /usr/local/bin --install-dir /usr/local/aws-cli --update Create IAM user with Admin access policy and generate IAM access & Secret Key aws configure aws s3 ls

Generate Keys

ssh-keygen

Set Env Variables for Kops

export AWS_ACCESS_KEY_ID= export AWS_SECRET_ACCESS_KEY= export NAME=mithran.k8s.local export KOPS_STATE_STORE=s3://kops22042022

Create Kubernetes Cluster

kops create cluster --zones ap-south-1a ${NAME} kops update cluster --name mithran.k8s.local --yes --admin

Step 6: Deploy to kubernetes

Add a new stage in Jenkins file

pipeline { agent any

stages {
    stage('Pull Code From GitHub') {
        steps {
            git 'https://github.com/Iam-mithran/SaturdayProject.git'
        }
    }
    stage('Build the Docker image') {
        steps {
            sh 'sudo docker build -t weekendimage /var/lib/jenkins/workspace/weekendproj'
            sh 'sudo docker tag weekendimage iammithran/weekendimage:latest'
            sh 'sudo docker tag weekendimage iammithran/weekendimage:${BUILD_NUMBER}'
        }
    }
    stage('Push the Docker image') {
        steps {
            sh 'sudo docker image push iammithran/weekendimage:latest'
            sh 'sudo docker image push iammithran/weekendimage:${BUILD_NUMBER}'
        }
    }
    stage('Deploy on Kubernetes') {
        steps {
            sh 'sudo kubectl apply -f /var/lib/jenkins/workspace/weekendproj/pod.yaml'
            sh 'sudo kubectl rollout restart deployment loadbalancer-pod'
        }
    }
}

}

Configure Webhook in github & Jenkins

Github Repo Setting -> Webhooks -> http://43.205.203.11:8080/github-webhook/ Jenkins Job -> Build Triggers -> GitHub hook trigger for GITScm polling

Make a Commit & Run the Deployment

make changes in the pod.yaml for correct image name git -am commit "Test Run" git push origin master Check Deployment in Kubernetes