Merge pull request #1 from yashwanth170/main

Packer Configuration for Building Jenkins Server AMI

.github/workflows/packer.yml

@@ -0,0 +1,51 @@
+name: Build Jenkins AMI
+
+on:
+  push:
+    branches:
+      - main  # Change this to the branch you want to trigger the workflow
+
+jobs:
+  packer:
+    name: Build AMI with Packer
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Set up Packer
+      uses: hashicorp/setup-packer@v2
+      with:
+        packer_version: latest
+
+    - name: Install amazon plugin for packer
+      run: |
+        packer plugins install github.com/hashicorp/amazon
+
+    - name: Install AWS CLI
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y awscli
+
+    - name: Configure AWS Credentials
+      env:
+        AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
+        AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+        AWS_DEFAULT_REGION: ${{ secrets.AWS_DEFAULT_REGION }}
+      run: |
+        mkdir -p ~/.aws
+        echo "[default]" > ~/.aws/credentials
+        echo "aws_access_key_id=${{ secrets.AWS_ACCESS_KEY_ID }}" >> ~/.aws/credentials
+        echo "aws_secret_access_key=${{ secrets.AWS_SECRET_ACCESS_KEY }}" >> ~/.aws/credentials
+    
+    - name: Run Packer Build
+      env:
+        AWS_PROFILE: default
+      run: |
+        packer build -var "region=${{ secrets.AWS_DEFAULT_REGION }}" \
+                     -var "source_ami=ami-04b70fa74e45c3917" \
+                     -var "instance_type=t2.micro" \
+                     -var "profile=default" \
+                     -var "ssh_username=ubuntu" \
+                     jenkins-config.json

README.md

@@ -1 +1,37 @@
-# ami-jenkins
+# 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](https://www.packer.io/downloads)
+- 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:
+
+```bash
+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.

jenkins-config.json

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+{
+    "variables": {
+      "region": "us-east-1",
+      "source_ami": "ami-04b70fa74e45c3917",  
+      "instance_type": "t2.micro",
+      "profile": "default",
+      "ssh_username": "ubuntu"
+    },
+    "builders": [
+      {
+        "type": "amazon-ebs",
+        "region": "{{user `region`}}",
+        "source_ami": "{{user `source_ami`}}",
+        "profile": "{{user `profile`}}",
+        "instance_type": "{{user `instance_type`}}",
+        "ssh_username": "{{user `ssh_username`}}",
+        "ami_name": "jenkins-{{timestamp}}",
+        "tags":{
+          "Name": "Jenkins - {{timestamp}}"
+        }
+      }
+    ],
+    "provisioners": [
+      {
+        "type": "shell",
+        "script": "script.sh"
+      }
+    ]
+  }

script.sh

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+#!/bin/bash
+
+export DEBIAN_FRONTEND=noninteractive
+sudo apt-get update
+sudo apt-get install -y curl
+sudo apt install -y openjdk-17-jre
+curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key | sudo tee /usr/share/keyrings/jenkins-keyring.asc > /dev/null
+echo "deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] https://pkg.jenkins.io/debian-stable binary/" | sudo tee /etc/apt/sources.list.d/jenkins.list > /dev/null
+sudo apt-get update
+sudo apt-get install -y jenkins
+sudo apt-get install -y nginx
+sudo apt-get install -y nginx certbot python3-certbot-nginx
+sudo systemctl enable jenkins
+sudo systemctl enable nginx