Writing scripts for continous integration/delivery (CI/CD) pipelines is often done as quick as possible in order to get the pipeline green (i.e. working as expected). Often though, the good engineering practices we put into our applications are neglected for the CI/CD pipelines. When projects and code bases evolve over time this can easily become an error-prone maintenance nightmare that no one dares to touch. This blog post will show some ideas you can use to significantly improve the maintainability and robustness of any CI/CD pipeline setup.

SSH keys are a very convenient and secure way to authenticate with Git servers such as GitHub. I used to use a single SSH key for the few private repositories I had, but in the meantime I have accumulated quite a number of SSH keys. Having different SSH keys for different purposes (e.g. personal keys and keys used for client work) makes it simpler for me to organize and rotate keys.