7e9b41896d
Refactor pipeline creation service ## What does this MR do? This refactors GitLab CI build processing: all builds for pipeline are pre-created when a pipeline object is created. The builds are created with a new introduced status `created`. The builds are then automatically promoted to `pending` when a previous stage do succeed. This significantly simplifies pipeline processing code solving a lot of problems of lazily initialisation of previous approach (builds were created on-demand). ## Why was this MR needed? The previous mechanism had a lot of flows (shown in related issues) in how it work, but also in code design. Removing cross model-service-library dependencies. The current approach moves a build creation to single place `CreatePipelineService` and removes a dynamic dependency on `config_processor` significantly simplifying a build creation and pipeline processing. Pipeline processing is implemented in `ProcessPipelineService`. This also allows to easily extend GitLab with Manual Actions which is part of 8.10 direction issue. ## Migration problem ~~This MR removes the a on-demand creation of builds in pipelines. Pipelines that are running and are in mid-stage (some stages started, but not all) will not be fully evaluated after application restart. This happens, because the code responsible for on-demand creation is removed. There's no easy way to migrate existing pipelines, other than doing offline migration and putting pipeline processing in migration code (which seems to be a really bad idea).~~ To support old pipelines I added a lazy initialization of builds if none is found. ## What are the relevant issue numbers? Fixes: https://gitlab.com/gitlab-org/gitlab-ce/issues/12839 Solves: https://gitlab.com/gitlab-org/gitlab-ce/issues/18644 https://gitlab.com/gitlab-org/gitlab-ci-multi-runner/issues/289 Allows to easily implement: https://gitlab.com/gitlab-org/gitlab-ce/issues/17010 ## Does this MR meet the acceptance criteria? - [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added - [x] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md) - [x] API support added - Tests - [x] Added for this feature/bug - [ ] All builds are passing - [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides) - [x] Branch has no merge conflicts with `master` (if you do - rebase it please) - [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits) See merge request !5295 |
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| fixtures | ||
| migrate | ||
| schema.rb | ||
| seeds.rb | ||