## Description How we handle CI/CD YAML files in pipeline model might benefit from some improvements. Currently it is quite error prone, an d we can run into problems with `config_source`. We set it in `after_initialize`, but at this point we don't yet have `sha` or other pipeline attributes present, so it not always works - it does not with FactoryGirl, for example). There are other pain points like `Ci::Pipeline.ci_yaml_file` that does not follow [CQS](https://en.wikipedia.org/wiki/Command%E2%80%93query_separation) and asking a question actually changes the pipeline object. Should we handle this in `CreatePipelineService`? Let's keep this issue to track work on improving the underlying implementation of pipeline configuration and phasing config processor out of the pipeline. Related to https://gitlab.com/gitlab-org/gitlab-ce/issues/37563