Task-01

Create a docker-integrated Jenkins declarative pipeline

Use the above-given syntax using sh inside the stage block

Navigate to Jenkins and click on the new item.
Create a pipeline project and enter the name and select pipeline and click on ok.
Enter description.

Now in the "Project Configuration" section, we have to define a pipeline script in the definition.

COPY

      pipeline {
          agent any 
          stages {
              stage('Clone Code') { 
                  steps {
                      git url: 'https://github.com/shreeegupta/node-todo-cicd.git' , branch: 'master' 
                  }
              }
              stage('Build') { 
                  steps {
                      sh 'docker build . -t shreya6/node-todo-app:latest' 
                  }
              }
              stage('Test') { 
                  steps {
                      echo "Testing" 
                  }
              }
              stage('Deploy') { 
                  steps {
                      sh "docker run -p 8000:8000 -d shreya6/node-todo-app:latest"
                  }
              }
          }
      }

Save and click on Build Now and we can check the multi-stage view by clicking on the “Full Stage View” on the project main page.
Once the build is completed we can check in the Console Output. We can see the pipeline is successful.
Verify the application by running it on the browser.

You will face errors in case of running a job twice, as the docker container will be already created, so for that do task 2

Run the pipeline again by clicking on the “Build Now” button, then we will see the error.

Task-02

Create a docker-integrated Jenkins declarative pipeline using the docker groovy syntax inside the stage block.

To solve this issue we can use a docker image to build the application and for that, we have to install Docker Pipeline & Docker Plugin in Jenkins.

Now we have to add a docker image in the Build stage.

COPY

      pipeline {
          agent any 
          stages {
              stage('Clone Code') { 
                  steps {
                      git url: 'https://github.com/shreeegupta/node-todo-cicd.git' , branch: 'master' 
                  }
              }
              stage('Build') { 
                  agent {
                      docker {
                          image 'shreya6/node-todo-app:latest'
                          reuseNode true
                      }
                  }
                  steps {
                     echo "Building app using Docker Image" 
                  }
              }
              stage('Test') { 
                  steps {
                      echo "Testing" 
                  }
              }
              stage('Deploy') { 
                  steps {
                      sh "docker-compose down"
                      sh "docker-compose up -d --build web"
                  }
              }
          }
      }

Click on Save and click on Build Now.
Now we can run the job twice or a couple of times without killing any existing container.

Thank you for reading!!
~Mecrin D Luvis.

Great initiative by the #trainwithshubham community. Thank you Shubham Londhe

#devops #90daysofdevops #jenkins #jenkinsproject #cicd #declarativepipeline

#Day 34 Jenkins Declarative Pipeline with Docker

Table of contents

Task-01

Task-02