Devops Automation Scripts

This repository contains robust bash scripts to automate the deployment and management of standard Devops tools (Jenkins, Tomcat, SonarQube, and PostgreSQL) on a fresh Linux server (e.g., Ubuntu on AWS EC2).

Prerequisites

• A Linux server (Ubuntu 22.04+ recommended)
• Minimum Specifications: For SonarQube, your server MUST have at least 2GB RAM (e.g., t3.small). An instance like m7i-flex.large (8GB RAM) is highly recommended.
• Sudo privileges

1. How to Install Services (install_services.sh)

This is the main installation manager. You can use it to pick and choose which tools you want to install.

Step-by-Step Instructions

1. Clone this repository to your server:

   git clone https://github.com/SuhasLingam/devops.git
   cd devops

2. Make the scripts executable:

   chmod +x *.sh

3. Run the installer:

   ./install_services.sh

4. An interactive menu will appear. Type the number corresponding to the tool you want to install and press Enter.

Note on SonarQube: If you choose Option 3 (SonarQube & PostgreSQL), ensure that the sonarqube.sh file is located in the exact same directory where you are running the command.

2. How to Manage the Services (manage_services.sh)

Once your tools are installed, you can easily stop, start, or check the status of all of them simultaneously using the management script.

Step-by-Step Instructions

1. Make the management script executable:

   chmod +x manage_services.sh

2. Run the manager:

   ./manage_services.sh

3. Use the interactive menu to Start all services, Stop all services, or Check status.

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Tool Details & Ports

After installation and startup, access your tools at these default ports:

• Jenkins: http://<your-server-ip>:8080
• Tomcat: http://<your-server-ip>:8085 (Changed from default 8080 to prevent conflict with Jenkins)
• SonarQube: http://<your-server-ip>:9000 (Default Login: admin / admin)

3. How to Setup Ansible (ansible_setup.sh)

This script automates the Master-Node architecture for Ansible on AWS Ubuntu instances.

Step-by-Step Instructions

1. On the Node instances:
   • Run chmod +x ansible_setup.sh
   • Run ./ansible_setup.sh and choose Option 2 (Node).
2. On the Master instance:
   • Run chmod +x ansible_setup.sh
   • Run ./ansible_setup.sh and choose Option 1 (Master).
   • Enter the number of nodes and their Private IPs when prompted.
   • The script will install Ansible, configure hosts, and establish trust with the nodes.
3. Verify Connection:
   • Switch to the devops user: su - devops
   • Test connectivity: ansible all -m ping