DevOps Classroom notes 24/Jan/2026

Lets visualize DevOps

• Developer make changes to code either to
  • fix defects
  • add new features
• We need to ensure this doesn’t break builds or unit test
• Testers will have automated testcases developed which include
  • component tests
  • System Tests
  • Performance Tests
  • Security Tests
• Costumers using application
  • We need to ensure if the application is failing we need to have a mechanism to revert back to older working version quickly.
• Responsibilities
  • Ensure every change submitted by developer is either rejected or deployed to customer without any issues.

Skills

• command line
  • bash
• Build tools
• Servers
  • OS:
    • Linux
      • Ubuntu
      • RedHat
  • Soft Servers:
    • Apache/Nginx
    • Tomcat
    • Mysql
    • Postgresql
• Cloud:
  • AWS/Azure/GCP
• GIt
• Building custom tools:
  • Python
• Troubleshooting.