DevOps is a set of cultural practices that eliminate the wall between development and operations teams. The goal: deliver code to production faster, more reliably, and repeatably. CALMS: Culture, Automation, Lean, Measurement, Sharing — the five pillars of DevOps.
CI/CD: tests run on every commit (CI); on success, automatic deploy to production (CD). GitHub Actions, GitLab CI, Jenkins — popular CI/CD tools. Infrastructure as Code (Terraform, Ansible) — managing infrastructure as code. SRE (Site Reliability Engineering) — Google's approach enriching DevOps with engineering principles. Error budget and SLO (Service Level Objective) — balancing reliability with new features.
Our courses on this topic