ci_cd

Continuous Integration

CI - to get quick feedback when you commit some code to the repository. Find problems early.

Code commit -> Code quality -> -> Unit tests -> Package -> Integration tests

Continuous Deployment

Includes an additional step: deploy the package into environment (dev/qa) and run few automated tests (smoke, etc.)

Code commit -> Code quality -> Unit tests -> Integration tests -> Package -> Deploy app -> Automated tests

Continuous Delivery

Along with packaging and deployment and running smoke tests, you setup a pipeline to automatically deploy app to a production environment.

If QA team gives the approval, then code will be automatically deployed on to stage and prod env.

Deploy app automatically to different environments.

Code commit -> Code quality -> Unit tests -> Integration tests -> Package -> Deploy app to stage -> Automated tests -> Testing Approval -> Deploy prod to next env -> ...

Tools

Jenkins and Azure DevOps.

We need to create CI/CD pipelines.

CD in depth:

• Code commit (in github)
• Unit tests (pytest, moka, jasmine, junit)
• Integration tests (selenium, cucumber, protractor). Write auto tests of few modules integrated together.
• Package (build deployable unit of app). Used npm, pip, maven.
• Deploy to env (via Jenkins, Azure DevOps)
• Run Additional tests (smoke, functional, performance tests)
• Once auto/manual tests are fine, you go and approve
• Deploy app on the next env. If you approve on qa, then app will be deployed on stage env