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# Pipelines for the GitLab project
Pipelines for <https://gitlab.com/gitlab-org/gitlab> and <https://gitlab.com/gitlab-org/gitlab-foss> (as well as the
`dev` instance's mirrors) are configured in the usual
[`.gitlab-ci.yml`](https://gitlab.com/gitlab-org/gitlab/blob/master/.gitlab-ci.yml)
which itself includes files under
[`.gitlab/ci/`](https://gitlab.com/gitlab-org/gitlab/tree/master/.gitlab/ci)
for easier maintenance.
We're striving to [dogfood](https://about.gitlab.com/handbook/engineering/#dogfooding)
GitLab [CI/CD features and best-practices](../ci/yaml/README.md)
as much as possible.
## Stages
The current stages are:
- `sync`: This stage is used to synchronize changes from <https://gitlab.com/gitlab-org/gitlab> to
<https://gitlab.com/gitlab-org/gitlab-foss>.
- `prepare`: This stage includes jobs that prepare artifacts that are needed by
jobs in subsequent stages.
- `test`: This stage includes most of the tests, DB/migration jobs, and static analysis jobs.
- `post-test`: This stage includes jobs that build reports or gather data from
the `test` stage's jobs (e.g. coverage, Knapsack metadata etc.).
- `review-prepare`: This stage includes a job that build the CNG images that are
later used by the (Helm) Review App deployment (see
[Review Apps](testing_guide/review_apps.md) for details).
- `review`: This stage includes jobs that deploy the GitLab and Docs Review Apps.
- `qa`: This stage includes jobs that perform QA tasks against the Review App
that is deployed in the previous stage.
- `post-qa`: This stage includes jobs that build reports or gather data from
the `qa` stage's jobs (e.g. Review App performance report).
- `notification`: This stage includes jobs that sends notifications about pipeline status.
- `pages`: This stage includes a job that deploys the various reports as
GitLab Pages (e.g. <https://gitlab-org.gitlab.io/gitlab/coverage-ruby/>,
<https://gitlab-org.gitlab.io/gitlab/coverage-javascript/>,
<https://gitlab-org.gitlab.io/gitlab/webpack-report/>).
## Default image
The default image is defined in <https://gitlab.com/gitlab-org/gitlab/blob/master/.gitlab-ci.yml>.
It includes Ruby, Go, Git, Git LFS, Chrome, Node, Yarn, PostgreSQL, and Graphics Magick.
The images used in our pipelines are configured in the
[`gitlab-org/gitlab-build-images`](https://gitlab.com/gitlab-org/gitlab-build-images)
project, which is push-mirrored to <https://dev.gitlab.org/gitlab/gitlab-build-images>
for redundancy.
The current version of the build images can be found in the
["Used by GitLab section"](https://gitlab.com/gitlab-org/gitlab-build-images/blob/master/.gitlab-ci.yml).
## Default variables
In addition to the [predefined variables](../ci/variables/predefined_variables.md),
each pipeline includes default variables defined in
<https://gitlab.com/gitlab-org/gitlab/blob/master/.gitlab-ci.yml>.
## Common job definitions
Most of the jobs [extend from a few CI definitions](../ci/yaml/README.md#extends)
defined in [`.gitlab/ci/global.gitlab-ci.yml`](https://gitlab.com/gitlab-org/gitlab/blob/master/.gitlab/ci/global.gitlab-ci.yml)
that are scoped to a single [configuration parameter](../ci/yaml/README.md#configuration-parameters).
| Job definitions | Description |
|------------------|-------------|
| `.default-tags` | Ensures a job has the `gitlab-org` tag to ensure it's using our dedicated runners. |
| `.default-retry` | Allows a job to [retry](../ci/yaml/README.md#retry) upon `unknown_failure`, `api_failure`, `runner_system_failure`, `job_execution_timeout`, or `stuck_or_timeout_failure`. |
| `.default-before_script` | Allows a job to use a default `before_script` definition suitable for Ruby/Rails tasks that may need a database running (e.g. tests). |
| `.default-cache` | Allows a job to use a default `cache` definition suitable for Ruby/Rails and frontend tasks. |
| `.use-pg9` | Allows a job to use the `postgres:9.6.17` and `redis:alpine` services. |
| `.use-pg10` | Allows a job to use the `postgres:10.12` and `redis:alpine` services. |
| `.use-pg11` | Allows a job to use the `postgres:11.6` and `redis:alpine` services. |
| `.use-pg9-ee` | Same as `.use-pg9` but also use the `docker.elastic.co/elasticsearch/elasticsearch:6.4.2` services. |
| `.use-pg10-ee` | Same as `.use-pg10` but also use the `docker.elastic.co/elasticsearch/elasticsearch:6.4.2` services. |
| `.use-pg11-ee` | Same as `.use-pg11` but also use the `docker.elastic.co/elasticsearch/elasticsearch:6.4.2` services. |
| `.as-if-foss` | Simulate the FOSS project by setting the `FOSS_ONLY='1'` environment variable. |
## `workflow:rules`
We're using the [`workflow:rules` keyword](../ci/yaml/README.md#workflowrules) to
define default rules to determine whether or not a pipeline is created.
These rules are defined in <https://gitlab.com/gitlab-org/gitlab/blob/master/.gitlab-ci.yml>
and are as follows:
1. If `$FORCE_GITLAB_CI` is set, create a pipeline.
1. For merge requests, create a pipeline.
1. For `master` branch, create a pipeline (this includes on schedules, pushes, merges, etc.).
1. For tags, create a pipeline.
1. If `$GITLAB_INTERNAL` isn't set, don't create a pipeline.
1. For stable, auto-deploy, and security branches, create a pipeline.
1. For any other cases (e.g. when pushing a branch with no MR for it), no pipeline is created.
## `rules`, `if:` conditions and `changes:` patterns
We're using the [`rules` keyword](../ci/yaml/README.md#rules) extensively.
All `rules` definitions are defined in
<https://gitlab.com/gitlab-org/gitlab/-/blob/master/.gitlab/ci/rules.gitlab-ci.yml>,
then included in individual jobs via [`extends`](../ci/yaml/README.md#extends).
The `rules` definitions are composed of `if:` conditions and `changes:` patterns,
which are also defined in
<https://gitlab.com/gitlab-org/gitlab/-/blob/master/.gitlab/ci/rules.gitlab-ci.yml>
and included in `rules` definitions via [YAML anchors](../ci/yaml/README.md#anchors)
### `if:` conditions
| `if:` conditions | Description | Notes |
|------------------|-------------|-------|
| `if-not-canonical-namespace` | Matches if the project isn't in the canonical (`gitlab-org/`) or security (`gitlab-org/security`) namespace. | Use to create a job for forks (by using `when: on_success\|manual`), or **not** create a job for forks (by using `when: never`). |
| `if-not-ee` | Matches if the project isn't EE (i.e. project name isn't `gitlab` or `gitlab-ee`). | Use to create a job only in the FOSS project (by using `when: on_success|manual`), or **not** create a job if the project is EE (by using `when: never`). |
| `if-not-foss` | Matches if the project isn't FOSS (i.e. project name isn't `gitlab-foss`, `gitlab-ce`, or `gitlabhq`). | Use to create a job only in the EE project (by using `when: on_success|manual`), or **not** create a job if the project is FOSS (by using `when: never`). |
| `if-default-refs` | Matches if the pipeline is for `master`, `/^[\d-]+-stable(-ee)?$/` (stable branches), `/^\d+-\d+-auto-deploy-\d+$/` (auto-deploy branches), `/^security\//` (security branches), merge requests, and tags. | Note that jobs won't be created for branches with this default configuration. |
| `if-master-refs` | Matches if the current branch is `master`. | |
| `if-master-or-tag` | Matches if the pipeline is for the `master` branch or for a tag. | |
| `if-merge-request` | Matches if the pipeline is for a merge request. | |
| `if-nightly-master-schedule` | Matches if the pipeline is for a `master` scheduled pipeline with `$NIGHTLY` set. | |
| `if-dot-com-gitlab-org-schedule` | Limits jobs creation to scheduled pipelines for the `gitlab-org` group on GitLab.com. | |
| `if-dot-com-gitlab-org-master` | Limits jobs creation to the `master` branch for the `gitlab-org` group on GitLab.com. | |
| `if-dot-com-gitlab-org-merge-request` | Limits jobs creation to merge requests for the `gitlab-org` group on GitLab.com. | |
| `if-dot-com-gitlab-org-and-security-tag` | Limits job creation to tags for the `gitlab-org` and `gitlab-org/security` groups on GitLab.com. | |
| `if-dot-com-gitlab-org-and-security-merge-request` | Limit jobs creation to merge requests for the `gitlab-org` and `gitlab-org/security` groups on GitLab.com. | |
| `if-dot-com-ee-schedule` | Limits jobs to scheduled pipelines for the `gitlab-org/gitlab` project on GitLab.com. | |
| `if-cache-credentials-schedule` | Limits jobs to scheduled pipelines with the `$CI_REPO_CACHE_CREDENTIALS` variable set. | |
### `changes:` patterns
| `changes:` patterns | Description |
|------------------------------|--------------------------------------------------------------------------|
| `yaml-patterns` | Only create job for YAML-related changes. |
| `docs-patterns` | Only create job for docs-related changes. |
| `frontend-dependency-patterns` | Only create job when frontend dependencies are updated (i.e. `package.json`, and `yarn.lock`). changes. |
| `frontend-patterns` | Only create job for frontend-related changes. |
| `backstage-patterns` | Only create job for backstage-related changes (i.e. Danger, fixtures, RuboCop, specs). |
| `code-patterns` | Only create job for code-related changes. |
| `qa-patterns` | Only create job for QA-related changes. |
| `code-backstage-patterns` | Combination of `code-patterns` and `backstage-patterns`. |
| `code-qa-patterns` | Combination of `code-patterns` and `qa-patterns`. |
| `code-backstage-qa-patterns` | Combination of `code-patterns`, `backstage-patterns`, and `qa-patterns`. |
## Interruptible jobs pipelines
By default, all jobs are [interruptible](../ci/yaml/README.md#interruptible), except the
`dont-interrupt-me` job which runs automatically on `master`, and is `manual`
otherwise.
If you want a running pipeline to finish even if you push new commits to a merge
request, be sure to start the `dont-interrupt-me` job before pushing.
## Directed acyclic graph
We're using the [`needs:`](../ci/yaml/README.md#needs) keyword to
execute jobs out of order for the following jobs:
```mermaid
graph RL;
A[setup-test-env];
B["gitlab:assets:compile pull-push-cache<br/>(canonical master only)"];
C["gitlab:assets:compile pull-cache<br/>(canonical default refs only)"];
D["cache gems<br/>(master and tags only)"];
E[review-build-cng];
F[build-qa-image];
G[review-deploy];
I["karma, jest"];
I2["karma-as-if-foss, jest-as-if-foss<br/>(EE default refs only)"];
J["compile-assets pull-push-cache<br/>(master only)"];
J2["compile-assets pull-push-cache as-if-foss<br/>(EE master only)"];
K[compile-assets pull-cache];
K2["compile-assets pull-cache as-if-foss<br/>(EE default refs only)"];
U[frontend-fixtures];
U2["frontend-fixtures-as-if-foss<br/>(EE default refs only)"];
V["webpack-dev-server, static-analysis"];
M[coverage];
O[coverage-frontend];
N["pages (master only)"];
Q[package-and-qa];
S["RSpec<br/>(e.g. rspec unit pg9)"]
T[retrieve-tests-metadata];
QA["qa:internal, qa:selectors"];
QA2["qa:internal-as-if-foss, qa:selectors-as-if-foss<br/>(EE default refs only)"];
X["docs lint, code_quality, sast, dependency_scanning, danger-review"];
subgraph "`prepare` stage"
A
B
C
F
K
K2
J
J2
T
end
subgraph "`fixture` stage"
U -.-> |needs and depends on| A;
U -.-> |needs and depends on| K;
U2 -.-> |needs and depends on| A;
U2 -.-> |needs and depends on| K2;
end
subgraph "`test` stage"
D -.-> |needs| A;
I -.-> |needs and depends on| U;
I2 -.-> |needs and depends on| U2;
L -.-> |needs and depends on| A;
S -.-> |needs and depends on| A;
S -.-> |needs and depends on| K;
S -.-> |needs and depends on| T;
L["db:*, gitlab:setup, graphql-docs-verify, downtime_check"] -.-> |needs| A;
V -.-> |needs and depends on| K;
X -.-> |needs| T;
QA -.-> |needs| T;
QA2 -.-> |needs| T;
end
subgraph "`post-test` stage"
M --> |happens after| S
O --> |needs `jest`| I
end
subgraph "`review-prepare` stage"
E -.-> |needs| C;
end
subgraph "`review` stage"
G -.-> |needs| E
end
subgraph "`qa` stage"
Q -.-> |needs| C;
Q -.-> |needs| F;
QA1["review-qa-smoke, review-qa-all, review-performance, dast"] -.-> |needs| G;
end
subgraph "`post-qa` stage"
PQA1["parallel-spec-reports"] -.-> |depends on `review-qa-all`| QA1;
end
subgraph "`pages` stage"
N -.-> |depends on| C;
N -.-> |depends on karma| I;
N -.-> |depends on| M;
N --> |happens after| PQA1
end
```
## Test jobs
Consult [GitLab tests in the Continuous Integration (CI) context](testing_guide/ci.md)
for more information.
## Review app jobs
Consult the [Review Apps](testing_guide/review_apps.md) dedicated page for more information.
---
[Return to Development documentation](README.md)
|
