Build Docker Image and Push it to AWS ECR Using Jenkins

Prerequisites:

• Jenkins server running on an EC2 instance.
• The EC2 instance should have an IAM role attached with ECR access.
• GitHub credentials should be added to the Jenkins server.
• EC2 should have Docker and AWS CLI installed.

Create AWS ECR to store images using below command line

aws ecr create-repository --repository-name jenkins-images --region us-east-1

Pipeline

Create Jenkins pipeline and add below script to it

pipeline {
    agent any
    
    environment {
        IMAGE_URI = '12789321751.dkr.ecr.us-east-1.amazonaws.com/jenkins-images'
        IMAGE_NAME = 'nginx'
        IMAGE_TAG = 'v1'
    }

stages {
        stage('Checkout') {
            steps {
                script {
                    git branch: 'main', credentialsId: 'github', url: 'https://github.com/nivas-22/devops.git'
                }
            }
        }
        stage('Build') {
            steps {
                script {
                    sh '''
                    ls -la
                    docker build -t $IMAGE_URI:$IMAGE_TAG .
                    docker images
                    '''
                }
            }
        }
        stage('Push') {
            steps {
                script {
                    sh '''
                    aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin 12789321751.dkr.ecr.us-east-1.amazonaws.com
                    docker push $IMAGE_URI:$IMAGE_TAG
                    '''
                }
            }
        }
    }
}