Automation Case Studies

Overview

This case study focuses on automating server deployments using Ansible.

Process

1. Install Ansible on your control machine.
2. Create an inventory file with server details.
3. Write a playbook for server installation and configuration.
4. Run the playbook to automate the deployment.

Example Playbook

- hosts: webservers
  tasks:
    - name: Install Apache
      yum:
        name: httpd
        state: present
    - name: Start Apache
      service:
        name: httpd
        state: started
    - name: Enable Apache on boot
      service:
        name: httpd
        enabled: true
            

Overview

This case study focuses on automating backups using cron jobs and rsync.

Process

1. Define the directories to back up.
2. Set up a script to perform the backup using rsync.
3. Schedule the script using cron.

Backup Script Example

#!/bin/bash
rsync -av --delete /path/to/source /path/to/backup
            

Setting Up Cron Job

To run the backup daily at 2 AM, add the following line to your crontab:

0 2 * * * /path/to/backup_script.sh
            

Overview

This case study highlights automating monitoring and alerting using Prometheus and Grafana.

Process

1. Install Prometheus on the target machine.
2. Configure Prometheus to scrape metrics.
3. Set up Grafana to visualize metrics.
4. Create alerts based on specific thresholds.

Prometheus Configuration Example

scrape_configs:
  - job_name: 'node'
    static_configs:
      - targets: ['localhost:9100']