Storing Build Dependencies for Stable CI/CD Pipelines
Ensuring that all build dependencies—including external libraries, Docker base images, and command‑line utilities—are stored in a controlled artifact repository and testing builds without internet access helps maintain pipeline stability by preventing failures caused by missing or unavailable external resources.
Storing the dependencies required for a project build is a crucial principle that directly impacts build stability.
Large portions of code rely on external libraries or related tools as dependencies. While your own code should always be kept in Git, all external libraries should also be stored in a managed artifact repository.
Store Your Own Dependencies
Take time to gather your dependencies and understand their origins. In addition to the codebase, a complete build may need external components such as a base Docker image or any command‑line utilities required for the build.
The best way to test build stability is to completely cut off internet access on the build server. Run a pipeline where all internal services (Git, database, artifact store, container image registry) are available, but nothing on the public Internet can be reached, and observe the outcome.
Directly From the Internet
If your build complains about missing dependencies, imagine that the specific external resource also fails; the same issue would occur in a real incident.
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