> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/open-source/use-harness-open-source/pipelines-1.md).

# Pipelines

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[Overview](/open-source/use-harness-open-source/pipelines-1/overview.md)
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[Samples](/open-source/use-harness-open-source/pipelines-1/samples.md)
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[Conditions](/open-source/use-harness-open-source/pipelines-1/conditions.md)
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[Expressions](/open-source/use-harness-open-source/pipelines-1/expressions.md)
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[Matrix](/open-source/use-harness-open-source/pipelines-1/matrix.md)
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[Parallelism](/open-source/use-harness-open-source/pipelines-1/parallelism.md)
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[Secrets](/open-source/use-harness-open-source/pipelines-1/secrets.md)
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[Stages](/open-source/use-harness-open-source/pipelines-1/stages.md)
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[Steps](/open-source/use-harness-open-source/pipelines-1/steps.md)
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[Triggers](/open-source/use-harness-open-source/pipelines-1/triggers.md)
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[Variables](/open-source/use-harness-open-source/pipelines-1/variables.md)
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[Volumes](/open-source/use-harness-open-source/pipelines-1/volumes.md)
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