best-practices.md

Best Practices

Step Execution

Run as many steps in parallel as possible.

Testing

Division of the test cases: test pyramid

Image from Le Blog des Octos

Container Plattform

Container Build

Changes made for the container (images themselves or manually installed software) have to pass the same pipeline as the application code itself.

• limit number of commands / lines inside the Dockerfile
  • this will reduce the numbers of layers
  • this will reduce the size of the Container Image
• Docker best practices
• OpenShift image creation best practices