jenkinsfile

pipeline {
    agent any
    stages {
        stage('Build'){
            steps {
                sh '''
                    #!/usr/bin/env bash
                    # Names to identify images and containers of this app
                    # TAG=$BUILD_NUMBER
                    TAG=1.0

                    build_all() {
                      echo "Starting BaseImage Build"
                      current_base_image_id=$(docker images | grep "projectmirror/baseimage               1.0" | awk '{ print $3 }')

                      docker build -t projectmirror/baseimage:1.0 ./baseimage/

                      new_base_image_id=$(docker images | grep "projectmirror/baseimage               1.0" | awk '{ print $3 }')

                      docker push projectmirror/baseimage:1.0

                      echo "the current base_image id is $current_base_image_id"
                      echo "the new base_image id is $new_base_image_id"

                      if [ "$current_base_image_id" != "$new_base_image_id" ];
                      then
                          echo "The base image has been rebuilt. Deleting all other containers and images ahead of rebuild"

                          docker rm -f $(docker ps -a -q) || true

                          # For now, deleting all images other than the the one with id=IMAGE_ID. If this turns out to be over-raeaching it can be susbtitutued with the below
                          # docker rmi $(docker images | grep -Ei $TAG | grep -Eiv $new_base_image_id)

                          docker rmi -f $(docker images -q | grep -Eiv $new_base_image_id) || true

                      else
                          echo "The base image hasn't been rebuilt. So no need to rebuild all images from scratch";
                      fi;

                      ## Now building remaining microservices
                      docker-compose -f docker-compose-dev.yml build

                    }

                    build_all
                '''
            }
        }

        stage('Test'){
            steps {
                sh '''docker-compose -f docker-compose-dev.yml down
                docker-compose -f docker-compose-dev.yml up -d
                docker ps

                python3 -m virtualenv venv -p $(which python3)
                . venv/bin/activate
                pip3 install -r webapp/requirements.txt

                export PYTHONPATH=:$PWD
                python3 webapp/tests/tests.py

                docker-compose -f docker-compose-dev.yml down
                rm -rf venv

                '''
            }
        }

        stage('Push to DockerHub'){
            steps {
                sh '''
                docker-compose -f docker-compose-dev.yml push
                '''
            }
        }

        stage('Deploy via RunDeck'){
            steps {
                build 'Project Mirror - Deploy'
            }
        }
    }
}