This is an example of child pipeline generation on Gitlab

PipelineWriter.py

class PipelineWriter:

    @staticmethod
    def parent_job_template():
        parent_job_template = """
stages:
  - build-libs
.basic:
  interruptible: false
  allow_failure: false
  retry:
    max: 2
    when: 
      - runner_system_failure
"""
        return parent_job_template

    @staticmethod
    def child_pipeline_job_template(lib):
        child_pipeline_job_template = f"""
build-{lib}-lib:
  extends: .basic
  stage: build-libs
  variables:
     BUILD_LIB: {lib}
  script:
    - echo $BUILD_LIB 
"""
        return child_pipeline_job_template