Jenkinsfile-master

#!/usr/bin/env groovy

// When implementing this file for your project, it is recommended that you should
// remove all comments in this file and do some changes as you require for your
//project.

//Required
def validatedeployment(f)
{
    env.WORKSPACE = pwd()
    boolean valid = false;
    def yamlText = readFile "${env.WORKSPACE}/"+f
    if(yamlText.contains('resources') && yamlText.contains('requests') && yamlText.contains('limits')){
            valid = true;
        }
    if(!valid)
        throw new Exception("Invalid deployment.yaml. Resources section not specified.");
}


try {
    node('ubu-slave-1') {
        stage('Clean workspace') {
            deleteDir()
                sh 'ls -lah'
        }

        stage('Checkout source') {
            checkout scm
        }

        stage ('Validate Compute Resources') {
            println "Validating CPU and Memory Settings in Deployment File"
            validatedeployment('deployment.yaml');
        }

        stage('Run Test Case') {
          echo 'Running test cases'
          echo "Passed test cases"
        }

        stage ('Build docker image') {
              println "Building and packaging python application"
              sh 'sleep 5'
              def img = docker.build('python-sqs', '.')
        }

       stage('Publish image') {
         echo "Publishing docker images"
         sh "\$(aws ecr get-login --region ap-southeast-2)"
         // need the following steps below if the token has expired.
         sh  '''
               aws_login=$(aws ecr get-login --region ap-southeast-2)
               if echo "$aws_login" | grep -q -E '^docker login -u AWS -p \\S{1092} -e none https://[0-9]{12}.dkr.ecr.\\S+.amazonaws.com$'; then $aws_login; fi
              '''
              docker.withRegistry('https://077077460384.dkr.ecr.ap-southeast-2.amazonaws.com', 'ecr:ap-southeast-2:AWS-SVC-ECS') {
                  docker.image('python-sqs').push('latest')
                  docker.image('python-sqs').push("build-master-${env.BUILD_NUMBER}")
             }
        }
   }
}
  catch (exc) {
  		echo "Caught: ${err}"

  		String recipient = 'munish.mehta@isentia.com'

  		mail subject: "${env.JOB_NAME} (${env.BUILD_NUMBER}) failed",
  						body: "It appears that ${env.BUILD_URL} is failing, somebody should do something about that",
  							to: 'munish.mehta@isentia.com',
  				 replyTo: 'munish.mehta@isentia.com',
  						from: 'isentia.jenkins@gmail.com'
  }

  node('ubu-slave-1') {
    // send to email
      emailext (
          subject: "Attention: Deploy to UAT Notification:  ${env.JOB_BASE_NAME} - Build # ${env.BUILD_NUMBER}",
          body: """
          Dear User,

          You are receiving this email because you are listed as receipient for ${env.JOB_BASE_NAME} project.
          The purpose of this notification is to let you know that ${env.JOB_BASE_NAME} has completed building and pushing docker image to ECR repository.
          It needs approval for proceed to deploy to UAT/Production.
          Currently, munish.mehta is authorized to deploy to uat and production.

          The approval period is set as 5 minutes currently. If job is not approved within specified time, it will not proceed to deploy.
          Later if you wish to deploy the image created by this build, you can execute deploy to UAT job.

          Build log can be see at: ${env.BUILD_URL}/console

          Authorized users, for approving build, click here: ${env.BUILD_URL}/input

          Thanks
          CI/CD team.
          """,
          to: 'munish.mehta@isentia.com',
          recipientProviders: [[$class: 'DevelopersRecipientProvider']]
        )
  }

  def imageTag = "077077460384.dkr.ecr.ap-southeast-2.amazonaws.com/python-sqs:build-master-${env.BUILD_NUMBER}"
  def userInput = true
  def didTimeout = false
  long startTime = System.currentTimeMillis()
  def approverChoice = ""
  def env = ""

try {
  timeout(time: 15, unit: 'SECONDS') { // wait for 15 seconds. Projects should customize this settings as per their requirements.  Total 3 changes #change 1

     approverChoice = input(id: 'approverChoice', message: 'Deploy Now?', ok: 'Deploy', submitter:'munish.mehta', parameters: [
     [$class: 'ChoiceParameterDefinition', choices: 'uat\nprod', description: 'Select environment to deploy to', name: 'choice']])

     env = approverChoice
     }
  } catch(err) { // timeout reached or input false
         echo "Caught: ${err}"
         long timePassed = System.currentTimeMillis() - startTime
         if (timePassed >= 15 * 1000) {//timeout #change 2
             echo 'Timed out'
             echo 'No action is taken within specified 15 seconds. However, the image is build and pushed to ECR repo.' // timeout #change 3
             echo 'Aborting the build with SUCCESS status.'
             didTimeout = true
         } else {
             userInput = false
             echo "Aborted by: [${user}]"
         }
     }

      if(env) {

        stage ('Pull and deploy to cluster') {
          node ('ubu-slave-1') {
            echo "Pulling and deploying app from ECR"
            withCredentials([[$class: 'AmazonWebServicesCredentialsBinding', accessKeyVariable: 'AWS_ACCESS_KEY_ID', credentialsId: 'b0097933-cea0-4729-8b7a-1e1f8702299f', secretKeyVariable: 'AWS_SECRET_ACCESS_KEY']]) {
                // copy the kubeconfig file for your cluster to root of application.
                if(env == "uat") {
                  echo 'copying kubeconfig for UAT cluster'
                  sh 'aws s3 cp s3://isentia-kube-config/uat/kubeconfig .'
                } else {
                  echo 'copying kubeconfig for production cluster'
                  sh 'aws s3 cp s3://isentia-kube-config/prod/kubeconfig .'
                }
                // create deployment, service and pods
                sh("sed -i.bak -e 's#077077460384.dkr.ecr.ap-southeast-2.amazonaws.com/python-sqs:latest#${imageTag}#' -e 's#dev#${env}#' ./deployment.yaml")
                sh('kubectl apply --namespace=templates --kubeconfig=kubeconfig -f deployment.yaml --record')
            }
          }
        }

      } else {
        echo "Wrong choice of environment variable. Exiting now."
      }

node ('ubu-slave-1'){
    if (didTimeout) {
        currentBuild.result = 'SUCCESS'
        echo "no input was received before timeout"
    } else if (userInput == true) {
        currentBuild.result = 'SUCCESS'
        echo "Application getting deployed to ${env} cluster"
    } else {
        echo "this was not successful"
        currentBuild.result = 'FAILURE'
    }
}