49 lines
2 KiB
Markdown
49 lines
2 KiB
Markdown
---
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stage: none
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group: unassigned
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
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---
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<!-- markdownlint-disable MD044 -->
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# Validate .gitlab-ci.yml syntax with the CI Lint tool
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<!-- markdownlint-enable MD044 -->
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If you want to test the validity of your GitLab CI/CD configuration before committing
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the changes, you can use the CI Lint tool. This tool checks for syntax and logical
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errors by default, and can simulate pipeline creation to try to find more complicated
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issues as well.
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To access the CI Lint tool, navigate to **CI/CD > Pipelines** or **CI/CD > Jobs**
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in your project and click **CI lint**.
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## Validate basic logic and syntax
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By default, the CI lint checks the syntax of your CI YAML configuration and also runs
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some basic logical validations. Configuration added with the [`includes` keyword](yaml/README.md#include),
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is also validated.
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To use the CI lint, paste a complete CI configuration (`.gitlab-ci.yml` for example)
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into the text box and click **Validate**:
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## Pipeline simulation
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> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/229794) in GitLab 13.3.
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Not all pipeline configuration issues can be found by the [basic CI lint validation](#validate-basic-logic-and-syntax).
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You can simulate the creation of a pipeline for deeper validation that can discover
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more complicated issues.
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To validate the configuration by running a pipeline simulation:
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1. Paste the GitLab CI configuration to verify into the text box.
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1. Click the **Simulate pipeline creation for the default branch** checkbox.
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1. Click **Validate**.
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### Pipeline simulation limitations
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Simulations run as `git push` events against the default branch. You must have
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[permissions](../user/permissions.md#project-members-permissions) to create pipelines
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on this branch to validate with a simulation.
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