The Simplest CI/CD Ever

This repository contains a script for automating CI/CD processes for multiple projects. The script checks for changes in specified Git repositories, pulls updates, and executes a series of commands for each service.

Repository Structure

CICD/
├── auto_deploy.log [will be created automatically]
├── auto_deploy.sh
└── services.json

• auto_deploy.sh: The main script that performs the CI/CD tasks.
• auto_deploy.log: Log file where the script logs its output.
• services.json: JSON configuration file specifying the services to monitor and the commands to run.

Requirements

The script requires the following tools to be installed:

• jq: Command-line JSON processor.
• git: Version control system.
• tee: Reads from standard input and writes to standard output and files.

You can install these tools using the following commands on a Debian-based system:

sudo apt-get update
sudo apt-get install jq git coreutils

Configuration

services.json

The services.json file should contain an array of service objects, each specifying:

• dir: The directory of the repository.
• branch: The branch to monitor.
• service_name: A name for the service.
• commands: An array of commands to run when changes are detected.
• detailedLogs: Boolean indicating whether to output detailed logs for the commands.

Example services.json:

[
  {
    "dir": "/home/ubuntu/monitor-app",
    "branch": "main",
    "service_name": "monitor-app",
    "commands": [
      "npm i",
      "npm build",
      "sudo systemctl restart monitor-app.service"
    ],
    "detailedLogs": true
  },
  {
    "dir": "/home/ubuntu/cool-app",
    "branch": "develop",
    "service_name": "cool-app",
    "commands": ["npm i", "npm build", "forever restart cool-app"],
    "detailedLogs": true
  }
]

Usage

Make the auto_deploy.sh script executable:

chmod +x auto_deploy.sh

To run the script manually:

./auto_deploy.sh

To automate the script using crontab, add the following line to your crontab file:

* * * * * /path/to/cicd/folder/auto_deploy.sh

This will execute the script every minute.