Commit ee51f7a3 authored by Marcel Amirault's avatar Marcel Amirault

Merge branch 'selhorn-trigger-cleanup' into 'master'

Updated trigger to be reference only

See merge request gitlab-org/gitlab!73217
parents 80d75bd9 16746d2a
......@@ -81,7 +81,8 @@ microservice_a:
trigger:
include:
- project: 'my-group/my-pipeline-library'
file: 'path/to/ci-config.yml'
ref: 'main'
file: '/path/to/child-pipeline.yml'
```
The maximum number of entries that are accepted for `trigger:include:` is three.
......@@ -98,7 +99,7 @@ microservice_a:
strategy: depend
```
## Merge Request child pipelines
## Merge request child pipelines
To trigger a child pipeline as a [Merge Request Pipeline](merge_request_pipelines.md) we need to:
......@@ -149,7 +150,7 @@ microservice_a:
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/35632) in GitLab 12.9.
Instead of running a child pipeline from a static YAML file, you can define a job that runs
your own script to generate a YAML file, which is then [used to trigger a child pipeline](../yaml/index.md#trigger-child-pipeline-with-generated-configuration-file).
your own script to generate a YAML file, which is then used to trigger a child pipeline.
This technique can be very powerful in generating pipelines targeting content that changed or to
build a matrix of targets and architectures.
......@@ -171,6 +172,31 @@ configuration for jobs, like scripts, that use the Windows runner would use `\`.
In GitLab 12.9, the child pipeline could fail to be created in certain cases, causing the parent pipeline to fail.
This is [resolved](https://gitlab.com/gitlab-org/gitlab/-/issues/209070) in GitLab 12.10.
### Dynamic child pipeline example
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/35632) in GitLab 12.9.
You can trigger a child pipeline from a [dynamically generated configuration file](../pipelines/parent_child_pipelines.md#dynamic-child-pipelines):
```yaml
generate-config:
stage: build
script: generate-ci-config > generated-config.yml
artifacts:
paths:
- generated-config.yml
child-pipeline:
stage: test
trigger:
include:
- artifact: generated-config.yml
job: generate-config
```
The `generated-config.yml` is extracted from the artifacts and used as the configuration
for triggering the child pipeline.
## Nested child pipelines
> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/29651) in GitLab 13.4.
......
......@@ -177,7 +177,7 @@ deploy:
```
In a parent pipeline, it runs the `test` job that subsequently runs a child pipeline,
and the [`strategy: depend` option](../yaml/index.md#linking-pipelines-with-triggerstrategy) makes the `test` job wait until the child pipeline has finished.
and the [`strategy: depend` option](../yaml/index.md#triggerstrategy) makes the `test` job wait until the child pipeline has finished.
The parent pipeline runs the `deploy` job in the next stage, that requires a resource from the `production` resource group.
If the process mode is `oldest_first`, it executes the jobs from the oldest pipelines, meaning the `deploy` job is going to be executed next.
......
......@@ -113,6 +113,9 @@ This means that whenever a new tag is pushed on project A, the job runs and the
`stage: deploy` ensures that this job runs only after all jobs with
`stage: test` complete successfully.
NOTE:
You [cannot use the API to start `when:manual` trigger jobs](https://gitlab.com/gitlab-org/gitlab/-/issues/284086).
## Triggering a pipeline from a webhook
To trigger a job from a webhook of another project you need to add the following
......
......@@ -3802,31 +3802,19 @@ deploystacks:
> - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/8997) in GitLab Premium 11.8.
> - [Moved](https://gitlab.com/gitlab-org/gitlab/-/issues/199224) to GitLab Free in 12.8.
Use `trigger` to define a downstream pipeline trigger. When GitLab starts a `trigger` job,
a downstream pipeline is created.
Use `trigger` to start a downstream pipeline that is either:
Jobs with `trigger` can only use a [limited set of keywords](../pipelines/multi_project_pipelines.md#define-multi-project-pipelines-in-your-gitlab-ciyml-file).
For example, you can't run commands with [`script`](#script), [`before_script`](#before_script),
or [`after_script`](#after_script).
- [A multi-project pipeline](../pipelines/multi_project_pipelines.md).
- [A child pipeline](../pipelines/parent_child_pipelines.md).
You can use this keyword to create two different types of downstream pipelines:
- [Multi-project pipelines](../pipelines/multi_project_pipelines.md#define-multi-project-pipelines-in-your-gitlab-ciyml-file)
- [Child pipelines](../pipelines/parent_child_pipelines.md)
In [GitLab 13.2 and later](https://gitlab.com/gitlab-org/gitlab/-/issues/197140/), you can
view which job triggered a downstream pipeline. In the [pipeline graph](../pipelines/index.md#visualize-pipelines),
hover over the downstream pipeline job.
**Keyword type**: Job keyword. You can use it only as part of a job.
In [GitLab 13.5 and later](https://gitlab.com/gitlab-org/gitlab/-/issues/201938), you
can use [`when:manual`](#when) in the same job as `trigger`. In GitLab 13.4 and
earlier, using them together causes the error `jobs:#{job-name} when should be on_success, on_failure or always`.
You [cannot start `manual` trigger jobs with the API](https://gitlab.com/gitlab-org/gitlab/-/issues/284086).
**Possible inputs**:
#### Basic `trigger` syntax for multi-project pipelines
- For multi-project pipelines, path to the downstream project.
- For child pipelines, path to the child pipeline CI/CD configuration file.
You can configure a downstream trigger by using the `trigger` keyword
with a full path to a downstream project:
**Example of `trigger` for multi-project pipeline**:
```yaml
rspec:
......@@ -3838,47 +3826,7 @@ staging:
trigger: my/deployment
```
#### Complex `trigger` syntax for multi-project pipelines
You can configure a branch name that GitLab uses to create
a downstream pipeline with:
```yaml
rspec:
stage: test
script: bundle exec rspec
staging:
stage: deploy
trigger:
project: my/deployment
branch: stable
```
To mirror the status from a triggered pipeline:
```yaml
trigger_job:
trigger:
project: my/project
strategy: depend
```
To mirror the status from an upstream pipeline:
```yaml
upstream_bridge:
stage: test
needs:
pipeline: other/project
```
#### `trigger` syntax for child pipeline
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/16094) in GitLab 12.7.
To create a [child pipeline](../pipelines/parent_child_pipelines.md), specify the path to the
YAML file that contains the configuration of the child pipeline:
**Example of `trigger` for child pipelines**:
```yaml
trigger_job:
......@@ -3886,71 +3834,36 @@ trigger_job:
include: path/to/child-pipeline.yml
```
Similar to [multi-project pipelines](../pipelines/multi_project_pipelines.md#mirror-status-of-a-triggered-pipeline-in-the-trigger-job),
it's possible to mirror the status from a triggered pipeline:
```yaml
trigger_job:
trigger:
include:
- local: path/to/child-pipeline.yml
strategy: depend
```
##### Trigger child pipeline with generated configuration file
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/35632) in GitLab 12.9.
You can also trigger a child pipeline from a [dynamically generated configuration file](../pipelines/parent_child_pipelines.md#dynamic-child-pipelines):
```yaml
generate-config:
stage: build
script: generate-ci-config > generated-config.yml
artifacts:
paths:
- generated-config.yml
child-pipeline:
stage: test
trigger:
include:
- artifact: generated-config.yml
job: generate-config
```
**Additional details**:
The `generated-config.yml` is extracted from the artifacts and used as the configuration
for triggering the child pipeline.
- Jobs with `trigger` can only use a [limited set of keywords](../pipelines/multi_project_pipelines.md#define-multi-project-pipelines-in-your-gitlab-ciyml-file).
For example, you can't run commands with [`script`](#script), [`before_script`](#before_script),
or [`after_script`](#after_script).
- In [GitLab 13.5 and later](https://gitlab.com/gitlab-org/gitlab/-/issues/201938), you
can use [`when:manual`](#when) in the same job as `trigger`. In GitLab 13.4 and
earlier, using them together causes the error `jobs:#{job-name} when should be on_success, on_failure or always`.
- In [GitLab 13.2 and later](https://gitlab.com/gitlab-org/gitlab/-/issues/197140/), you can
view which job triggered a downstream pipeline in the [pipeline graph](../pipelines/index.md#visualize-pipelines).
##### Trigger child pipeline with files from another project
**Related topics**:
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/205157) in GitLab 13.5.
- [Multi-project pipeline configuration examples](../pipelines/multi_project_pipelines.md#define-multi-project-pipelines-in-your-gitlab-ciyml-file).
- [Child pipeline configuration examples](../pipelines/parent_child_pipelines.md#examples).
- To force a rebuild of a specific branch, tag, or commit, you can
[use an API call with a trigger token](../triggers/index.md).
The trigger token is different than the `trigger` keyword.
To trigger child pipelines with files from another private project under the same
GitLab instance, use [`include:file`](#includefile):
#### `trigger:strategy`
```yaml
child-pipeline:
trigger:
include:
- project: 'my-group/my-pipeline-library'
ref: 'main'
file: '/path/to/child-pipeline.yml'
```
#### Linking pipelines with `trigger:strategy`
Use `trigger:strategy` to force the `trigger` job to wait for the downstream pipeline to complete
before it is marked as **success**.
By default, the `trigger` job completes with the `success` status
as soon as the downstream pipeline is created.
This behavior is different than the default, which is for the `trigger` job to be marked as
**success** as soon as the downstream pipeline is created.
To force the `trigger` job to wait for the downstream (multi-project or child) pipeline to complete, use
`strategy: depend`. This setting makes the trigger job wait with a "running" status until the triggered
pipeline completes. At that point, the `trigger` job completes and displays the same status as
the downstream job.
This setting makes your pipeline execution linear rather than parallel.
This setting can help keep your pipeline execution linear. In the following example, jobs from
subsequent stages wait for the triggered pipeline to successfully complete before
starting, which reduces parallelization.
**Example of `trigger:strategy`**:
```yaml
trigger_job:
......@@ -3959,14 +3872,8 @@ trigger_job:
strategy: depend
```
#### Trigger a pipeline by API call
To force a rebuild of a specific branch, tag, or commit, you can use an API call
with a trigger token.
The trigger token is different than the [`trigger`](#trigger) keyword.
[Read more in the triggers documentation.](../triggers/index.md)
In this example, jobs from subsequent stages wait for the triggered pipeline to
successfully complete before starting.
### `interruptible`
......@@ -4109,7 +4016,7 @@ deployment:
script: echo "Deploying..."
```
You must define [`strategy: depend`](#linking-pipelines-with-triggerstrategy)
You must define [`strategy: depend`](#triggerstrategy)
with the `trigger` keyword. This ensures that the lock isn't released until the downstream pipeline
finishes.
......
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