CI/CD speed boost: parallelization & caching
A Python-based CI/CD pipeline was sped up from 45 minutes to under 5 using parallelization and advanced caching techniques.
The original pipeline suffered from long-running integration tests and inefficient dependency management. The team tackled this by implementing a distributed testing framework and aggressive caching of Python dependencies. Parallelizing the test suite across multiple containers cut down the execution time dramatically. This required refactoring the test suite to ensure isolation and avoid race conditions. Caching external packages and internal artifacts minimized redundant downloads and builds. Tools like `pip` and `poetry` were configured to leverage local and remote caches effectively.
