Packer Configuration for Building Jenkins Server AMI

This repository contains a Packer configuration file (jenkins-config.json) and a shell script (script.sh) to build an Amazon Machine Image (AMI) for a Jenkins server on AWS using Packer.

Prerequisites

Before you begin, ensure you have the following prerequisites installed:

• Packer
• AWS IAM credentials with permissions to create EC2 instances and AMIs

Usage

1. Configure Variables

Open jenkins-config.json in a text editor and customize the following variables as needed:

• region: The AWS region where the AMI will be created.
• source_ami: The ID of the base AMI to use as the source.
• instance_type: The EC2 instance type to use for building the AMI.
• profile: The AWS profile to use for authentication (optional).
• ssh_username: The username used to SSH into the EC2 instance.

2. Build the AMI

Run the following command to build the AMI:

packer build jenkins-json.json

The script file (`script.sh`) installs the following software on the Amazon Machine Image (AMI) during the provisioning process:

- **curl**: Command-line tool for transferring data with URLs.
- **OpenJDK 17**: Java Runtime Environment required for Jenkins.
- **Jenkins**: Automation server for continuous integration and continuous delivery (CI/CD).
- **Nginx**: Web server used for reverse proxying to Jenkins and handling SSL.
- **Certbot**: Tool for automatically enabling HTTPS on your server using Let's Encrypt certificates.