Pipeline Template
Most teams build a template as a convenience and describe it as a control. The difference is whether bypassing it is prevented or merely discouraged.
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Pipeline as Code
The pipeline becomes reviewable, which is the point. It also becomes branch-specific, which is both the feature and the trap.
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Build Agent
A build agent supplies pipeline compute and forms part of a trust boundary. Its isolation, credentials, retained state, and lifecycle determine what executed code can reach.
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CI/CD Delivery System Comparison
Compare execution isolation, automatic tokens, supplied credentials, and internal build authorization to determine what a delivery job can reach.
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Reproducible Build
Timestamps, locale, paths, and ordering can change build output. Matching bytes checks reproducibility; it does not authenticate every provenance claim.
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Environment Promotion
Promotion preserves artifact identity and earlier test records. Data, infrastructure, configuration, and traffic differences still need validation.
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Build Artifact
Connect the release version to retained content, and record the dependencies and runtime needed to install and verify that artifact.
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CI/CD Artifacts, Verification, and Promotion
Keep the release artifact tied to its checks. A matching source revision alone does not establish that staging and production run the same software.
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Designing CI Pipelines and Trust Boundaries
A CI pipeline runs code from many parties while holding credentials. This guide covers stages, secrets, untrusted changes, dependency pins, isolation, and evidence.