# Day 52: Your CI/CD pipeline on AWS - Part 3 🚀 ☁(Jan 17, 2024) ## **🙏 Introduction:** In this blog, we will deploy a CI/CD pipeline on AWS using tools such as CodeCommit, CodeBuild, CodeDeploy, CodePipeline, and S3. This is Part 3. ## **🔶What is CodeDeploy ?** * AWS CodeDeploy is a deployment service that automates application deployments to Amazon EC2 instances, on-premises instances, serverless Lambda functions, or Amazon ECS services. * CodeDeploy can deploy application content that runs on a server and is stored in Amazon S3 buckets, GitHub repositories, or Bitbucket repositories. It can also deploy a serverless Lambda function. There is no need to make changes to your existing code before using CodeDeploy. ## **🎯Task: 1** 1. ### **Read about Appspec.yaml file for CodeDeploy** The application specification file (AppSpec file) is a YAML -formatted or JSON-formatted file used by CodeDeploy to manage a deployment. The AppSpec file for an EC2/On-Premises deployment must be named appspec. yml or appspec. yaml 1. ### **Deploy index.html file on EC2 machine using nginx** **Create Application** * Navigate to CodeDeploy and click on **Create Application**. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703679622427/47b6e6ca-4c7b-4195-8bf4-cacefbe83cbb.png?auto=compress,format&format=webp align="left") * Provide an application name, select the compute platform as EC2 instance, and click on **Create application** ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703679767782/46424e78-195b-454c-8270-f3bc29fecb34.png?auto=compress,format&format=webp align="left") * Application created ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703679870752/b7e2d672-2a0e-4bc9-bef6-6ec40a0a5236.png?auto=compress,format&format=webp align="left") **Create Deployment group in application of CodeDeploy** * Go to IAM role and create one role with below permission policies ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703685147974/ea383592-dbd1-4121-86c1-c4775cb0f620.png?auto=compress,format&format=webp align="left") * Go to EC2 instance and create an instance ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703685584768/fc938520-9cb6-41ae-a225-fd398a10459b.png?auto=compress,format&format=webp align="left") * Now go to codedeploy application and click on create deployment group ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703685712229/524f8314-3bef-432b-84e9-83e1ae3aadcd.png?auto=compress,format&format=webp align="left") * Enter group name and select previously created role ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703686305241/6d5b04f8-ccba-4e2e-8ccb-9c68972a8b19.png?auto=compress,format&format=webp align="left") * Select In place and enter name of EC2 instance which we created ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703694649605/89828083-01f3-4971-960d-c7e954ed56b5.png?auto=compress,format&format=webp align="left") * Deployment group created ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703696394686/f3a98e2b-04d6-43a5-9898-86bfe88e7e43.png?auto=compress,format&format=webp align="left") 1. ### **Setup a CodeDeploy agent in order to deploy code on EC2** **Manually Set Up a CodeDeploy Agent** * you have to setup a CodeDeploy agent in order to deploy code on EC2 * Connect to EC2 instance and create [install.sh](https://sutish.hashnode.dev/day-52-your-cicd-pipeline-on-aws-part-3#heading-what-is-codedeploy) file and enter below script and run it * ```plaintext #!/bin/bash # This installs the CodeDeploy agent and its prerequisites on Ubuntu 22.04. sudo apt-get update sudo apt-get install ruby-full ruby-webrick wget -y cd /tmp wget https://aws-codedeploy-us-west-2.s3.us-west-2.amazonaws.com/releases/codedeploy-agent_1.3.2-1902_all.deb mkdir codedeploy-agent_1.3.2-1902_ubuntu22 dpkg-deb -R codedeploy-agent_1.3.2-1902_all.deb codedeploy-agent_1.3.2-1902_ubuntu22 sed 's/Depends:.*/Depends:ruby3.0/' -i ./codedeploy-agent_1.3.2-1902_ubuntu22/DEBIAN/control dpkg-deb -b codedeploy-agent_1.3.2-1902_ubuntu22/ sudo dpkg -i codedeploy-agent_1.3.2-1902_ubuntu22.deb systemctl list-units --type=service | grep codedeploy sudo service codedeploy-agent status ``` ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703697204713/15c485e7-6f92-47d3-856a-cb0de26c9129.png?auto=compress,format&format=webp align="left") * EC2 doesn't have a role policy that allows it to retrieve data from S3 for CodeDeploy. Therefore, create a new service role to enable communication between EC2 and S3, as well as CodeDeploy. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703729000823/18182953-e4f6-48a6-8b7f-e5dafb047462.png?auto=compress,format&format=webp align="left") **Attach that service role to EC2 instance** * Select the EC2 instance, then in the Actions menu, navigate to Security and click on **Modify IAM role**. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703730023580/9982b509-3fa0-44e0-9fd3-0814d700b550.png?auto=compress,format&format=webp align="left") * Select the role that we created in above step & click on Update IAM role ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703731074802/7dc0da64-99e9-4d66-b527-cbcbcd2c4e80.png?auto=compress,format&format=webp align="left") * Restart code-deploy agent ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703731500100/81e3d19e-fa30-4fc3-a596-db032e51792a.png?auto=compress,format&format=webp align="left") ## **🎯Task: 2** 1. ### Add appspec.yaml file to CodeCommit Repository and complete the deployment process * Create appspec.yml file ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703733395792/edbfa8ee-8550-4aff-aa4f-2dd62f0e428f.png?auto=compress,format&format=webp align="left") * Create a script folder. Inside the script folder, create **install\_**[**nginx.sh**](https://sutish.hashnode.dev/day-52-your-cicd-pipeline-on-aws-part-3#heading-what-is-codedeploy) and **start\_**[**nginx.sh**](https://sutish.hashnode.dev/day-52-your-cicd-pipeline-on-aws-part-3#heading-what-is-codedeploy). ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703733940954/12f607ae-69eb-4553-bf37-4959ce43a282.png?auto=compress,format&format=webp align="left") * Push this file to code-commit repository ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703734320006/45a274e3-bc4b-4acf-b93b-521780ded558.png?auto=compress,format&format=webp align="left") * Click on **Strat build** ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703740965089/2aad1a68-4b09-4af3-aba2-9499a18bc5e8.png?auto=compress,format&format=webp align="left") **Deployment process** * Navigate to CodeDeploy and click on the application we created, then proceed to the Deployments section & Click on **Create deployment.** ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703742213723/94856878-62b9-4296-a2a2-5a0f127b2a3c.png?auto=compress,format&format=webp align="left") * Select the Deployment group name, enter the path, and click on **Create deployment**. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703744365235/a9cc28cd-24ad-4af0-bb46-bdc4f4412313.png?auto=compress,format&format=webp align="left") * Deployment completed successfully ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703747016107/c3583be8-0964-4324-9fea-bfd712ce3e46.png?auto=compress,format&format=webp align="left") * Copy the public IP address of the instance and paste it into your browser. This will display the output of the index.html file. ![](https://cdn.hashnode.com/res/hashnode/image/upload/v1703747222790/57588946-20ce-4bf1-b67d-121e39ca0ab9.png?auto=compress,format&format=webp align="left")