Jenkins - Docker - Integration

image source : Internet

Build & Deploying Docker image in the Docker Server.

1) Install jenkins, Docker in CI\CD Server.

2) Install docker in deployment server.

3)Create jenkins pipeline job to build & deploy docker image in docker(Deployment)server.

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Prerequisites :

1) AWS Account

2)Docker Hub Account (Public Repo for Docker images)

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1) Setup CI\CD Server with Jenkins & Docker in Ubuntu

#update package Manager 👉 $sudo apt update

#InstallJava 👉 $sudo apt install openjdk-8-jdk

#InstallJenkins

$wget -q -O - pkg.jenkins.io/debian-stable/jenkins.io.key | sudo apt-key add $sudo sh -c 'echo deb pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list'

$sudo apt update

$sudo apt install jenkins

$sudo systemctl start jenkins

$sudo systemctl status jenkins

Jenkins is now up & running👇

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#InstallDocker 👉 apt install docker.io -y

Add jenkins users to Docker 👉 usermod -aG docker jenkins

Restart 👉 Sudo systemctl restart jenkins

Plugins used in jenkins : 👉 SSH

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2) Install Docker in Deployment Server

update package Manager

$sudo apt update

Install Docker

$sudo apt install docker.io -y

Jenkin Pipeline Script using secret key

  pipeline {
  agent any
  environment{
   buildnumber = currentBuild.getNumber()
}

tools{
    maven 'maven3.8.5'
}

stages {   
   stage('clone') {

         steps {

            git 'https://github.com/NageshRep0/maven-web-application.git'
            sh 'mvn clean package'
         }
     }

     stage('imageBuild') {
         steps {
            sh 'docker build -t dockerhandsoff/mavenwebapp:${buildnumber} .'
         }
     }

     stage('imagepush') {
         steps {
           withCredentials([string(credentialsId: 'mycreds', variable: 'mycreds')]) {

             sh 'docker login -u dockerhandsoff -p ${mycreds}'
             }
            sh 'docker push dockerhandsoff/mavenwebapp:${buildnumber}'
         }
     }

     stage('imagedeployment') {
         steps {
             sshagent(['63f06107-ba1d-4de8-8e59-a8267ef02444']) {
         sh 'ssh -o StrictHostKeyChecking=no ubuntu@172.31.36.211 docker run -d --name

     mavenwebapp -p 8080:8080 dockerhandsoff/mavenwebapp:${buildnumber}'

         }
         }
     }
 }

}

3) now running the jenkins & build is success 👇

Authentication & pushing the image in Docker

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