DevOps Intermediate

What is CI/CD?

Continuous Integration and Continuous Deployment — automated practices for building, testing, and deploying code changes.

CI (Continuous Integration) automatically builds and tests code whenever developers push changes, catching bugs early. CD (Continuous Deployment/Delivery) automates releasing tested code to production or staging environments.

Popular CI/CD tools include GitHub Actions, GitLab CI, Jenkins, CircleCI, and Travis CI. A typical pipeline includes stages: build, test, security scan, deploy to staging, and deploy to production.

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A platform for building, shipping, and running applications in lightweight, isolated containers.

Pipeline as Code

Defining CI/CD pipeline configurations as version-controlled code files rather than through UI-based pipeline builders.

A tool by HashiCorp for securely managing secrets, encryption keys, and certificates with dynamic secret generation.

Chaos Engineering

The discipline of deliberately introducing failures into a system to test its resilience and identify weaknesses before they cause outages.

Blue-Green Deployment

A deployment strategy using two identical environments where traffic is switched from the old version to the new one instantly.

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