DevOps Basics

CI

Continuous Integration: frequent automated builds/tests.

CD

Continuous Delivery/Deployment of software.

Pipeline

Automated sequence of build/test/deploy steps.

Container

Lightweight isolated runtime package (e.g. Docker).

Image

Immutable template used to create containers.

Orchestration

Managing many containers (e.g. Kubernetes).

IaC

Infrastructure as Code (Terraform, etc.).

Monitoring

Observing system health and metrics.

Logging

Recording events for debugging and audit.

Alert

Notification when a metric crosses a threshold.

Rollback

Revert to a previous working version.

Blue/green deploy

Two environments switched for low-risk releases.

Canary release

Roll out to a small user subset first.

SLA

Service level agreement on availability/performance.