The subject of gitlab ci rules syntax encompasses a wide range of important elements. Specify when jobs run with `rules` | GitLab Docs. You can use predefined CI/CD variables with rules to choose which pipeline types jobs should run for. The following table lists some of the variables that you can use, and the pipeline types the variables can control for: CI/CD YAML syntax reference | GitLab Docs.
This document lists the configuration options for the GitLab .gitlab-ci.yml file. This file is where you define the CI/CD jobs that make up your pipeline. rules:if clauses are commonly used with predefined CI/CD variables, especially the CI_PIPELINE_SOURCE predefined variable. The following example runs the job as a manual job in scheduled pipelines or in push pipelines (to branches or tags), with when: on_success (default).
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