jenkinsfile

// This is a static web app k8s cluster deployment jenkins script.
// This script is Writen by Krishnendu Bhowmick
node{
    
    def buildnumber = BUILD_NUMBER
    
    stage("Git Clone")
    {
        git url:'https://github.com/bhowmickkrishnendu/apache-docker-demo.git'
    }
    stage('Docker Old unused image clean')
    {
        sh "docker system prune -f --all"
    }
    stage('Docker Build Image')
    {
        sh "docker build -t krishhub/apachetest:${buildnumber} ."
    }
    // Docker Pipeline plugin used here.
    stage('Push Image to Repository')
    {
        withDockerRegistry(credentialsId: 'e4bc5573-0aca-4b3e-baf2-bdcea34268fe') {
        sh "docker push krishhub/apachetest:${buildnumber}"
        }
    }
        stage('Update the build tag in k8s deployment')
    {
    sh "chmod +x changebuildtag.sh"
    sh "./changebuildtag.sh ${buildnumber}"
    }
    //SSH Pipeline Agent plugin used.
    stage('Deploy app on K8s Cluster')
    {
        sshagent(['k8s_server']) 
        {
            sh "ssh -o StrictHostKeyChecking=no ubuntu@172.31.34.225"
            sh "scp -o StrictHostKeyChecking=no deploy-apacheapp.yml ubuntu@172.31.34.225:/home/ubuntu/"
            sh "ssh ubuntu@172.31.34.225 kubectl apply -f deploy-apacheapp.yml"
        }
    }
}