DevOps fundamentals covers the cross-cutting practices that make software ship reliably: infrastructure-as-code, CI/CD pipelines, monitoring and observability, incident response, and the cultural side that the original DevOps movement emphasized over the tools.
The toolset has consolidated significantly. CI/CD usually means GitHub Actions or GitLab CI; infrastructure-as-code means Terraform or OpenTofu plus a cloud provider; observability means OpenTelemetry instrumentation feeding into Grafana, Datadog, or Honeycomb. The skills that transfer across employers are the underlying patterns — pipeline design, change management, on-call practices — not memorizing any one platform's YAML syntax.
