Trigger specific job in downstream pipeline for mutiproject scenario

GitLab CI/CD
1

I was reading Downstream pipelines | GitLab
I couldn’t find a way to trigger one specific job from my project to another project.

trigger:
    project: myproject/myrepo/.gitlab-ci.yaml
    branch: main
    strategy: depend

I can use above to create my downstream pipeline but this triggers all the job. If I have lets say 3 jobs here then I just want to trigger one job.

2

As far as I see, trigger does have no option to specify one job.

So you would have to use rules plus CI_PIPELINE_SOURCE.

e.g., for myproject/myrepo/.gitlab-ci.yaml:

my-job:
  script:
    - echo "Hello World"
  rules:
    - if: $CI_PIPELINE_SOURCE == "parent"

my-build:
  script:
    - echo "Hello GitLab
  • If you run this inside myproject, then only my-build will be executed.
  • If you run this via a trigger, then only my-job gets executed.

Hopefully, that will help you out.

3

@botkero both jobs will run in your example, when the pipeline is started via a trigger.

However, only my-build will run when the pipeline trigger is NOT a downstream pipeline.

The following would behave as you suggested.

my-job:
  script:
    - echo "Hello World"
  rules:
    - if: $CI_PIPELINE_SOURCE == "parent"

my-build:
  script:
    - echo "Hello GitLab"
  rules:
    - if: $CI_PIPELINE_SOURCE != "parent"
4

Hi nico-i

Yes, you’re absolutely right.

  • If you run this via a trigger, then only my-job gets executed.

This is wrong. I suspect I typed a little too fast here. Thank you for the correction.

5

Pragmatically, just move the remote pipeline content you want to explicitly invoke into its own foo.gitlab-ci.yml file and then invoke it directly:

job:
  trigger:
    include:
    - project: myproject/myrepo
      file: .gitlab/minimal.yml