53 lines
2.2 KiB
Markdown
53 lines
2.2 KiB
Markdown
---
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stage: Verify
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group: Pipeline Authoring
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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/product/ux/technical-writing/#assignments
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---
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# Validate GitLab CI/CD configuration **(FREE)**
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Use the CI Lint tool to check the validity of GitLab CI/CD configuration.
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You can validate the syntax from a `.gitlab-ci.yml` file or any other sample CI/CD configuration.
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This tool checks for syntax and logic errors, and can simulate pipeline
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creation to try to find more complicated configuration problems.
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If you use the [pipeline editor](pipeline_editor/index.md), it verifies configuration
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syntax automatically.
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If you use VS Code, you can validate your CI/CD configuration with the
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[GitLab Workflow VS Code extension](../user/project/repository/vscode.md).
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## Check CI/CD syntax
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The CI lint tool checks the syntax of GitLab CI/CD configuration, including
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configuration added with the [`includes` keyword](yaml/index.md#include).
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To check CI/CD configuration with the CI lint tool:
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1. On the top bar, select **Main menu > Projects** and find your project.
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1. On the left sidebar, select **CI/CD > Pipelines**.
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1. In the upper right, select **CI lint**.
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1. Paste a copy of the CI/CD configuration you want to check into the text box.
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1. Select **Validate**.
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## Simulate a pipeline
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> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/229794) in GitLab 13.3.
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You can simulate the creation of a GitLab CI/CD pipeline to find more complicated issues,
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including problems with [`needs`](yaml/index.md#needs) and [`rules`](yaml/index.md#rules)
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configuration. A simulation runs as a Git `push` event on the default branch.
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Prerequisites:
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- You must have [permissions](../user/permissions.md#project-members-permissions)
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to create pipelines on this branch to validate with a simulation.
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To simulate a pipeline:
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1. On the top bar, select **Main menu > Projects** and find your project.
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1. On the left sidebar, select **CI/CD > Pipelines**.
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1. In the upper right, select **CI lint**.
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1. Paste a copy of the CI/CD configuration you want to check into the text box.
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1. Select **Simulate pipeline creation for the default branch**.
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1. Select **Validate**.
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