DevOps Overview
This guide provides a comprehensive introduction to DevOps, a set of practices that combines software development (Dev) and IT operations (Ops).
What is DevOps?
- Definition: DevOps is a culture and set of practices that automates and integrates software development and IT operations.
- Goals: Shorter development cycles, increased deployment frequency, and more dependable releases.
- Benefits: Improved collaboration, faster time to market, and better product quality.
Core Principles
Culture and Collaboration
- Breaking Silos: Unifying development and operations teams
- Shared Responsibility: Joint ownership of product delivery
- Continuous Learning: Embracing feedback and improvement
Automation
- Infrastructure as Code (IaC)
- Continuous Integration/Continuous Deployment (CI/CD)
- Automated Testing
- Configuration Management
Key Practices
Development Practices
- Version Control
- Code Review
- Trunk-Based Development
- Feature Flags
Operations Practices
- Infrastructure Management
- Configuration Management
- Monitoring and Logging
- Incident Response
DevOps Tools
Common Categories
- Source Control: Git, GitHub, GitLab
- CI/CD: Jenkins, GitHub Actions, GitLab CI
- Containerization: Docker, Kubernetes
- Monitoring: Prometheus, Grafana, ELK Stack
Best Practices
- Automate Everything Possible
- Measure and Monitor
- Embrace Failure as Learning
- Security Integration (DevSecOps)
- Continuous Improvement