What is the difference between a build artifact and a deployment package, and why does it matter?

Build artifact vs deployment package

Compares build artifacts and deployment packages in a .NET release pipeline.

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TL;DR

A build artifact is the output produced by the build pipeline, such as compiled .NET binaries, a published API folder, a container image, or frontend build files. A deployment package is the artifact prepared for deployment with the metadata or packaging needed by the target environment. The important point is that the pipeline should produce a known versioned output. That output can then be promoted through environments.

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Artifact traceability, repeatable deployment, environment promotion, packaging, and release safety.

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Why this question matters
Repeatable delivery depends on knowing which output was built and exactly what gets deployed. Rebuilding or changing that output between environments weakens traceability and makes failures harder to reproduce.
A build artifact is the output produced by the build pipeline, such as compiled .NET binaries, a published API folder, a container image, or frontend build files. A deployment package is the artifact prepared for deployment with the metadata or packaging needed by the target environment. The important point is that the pipeline should produce a known versioned output. That output can then be promoted through environments.
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For example, a .NET API can be built once, tested, packaged, and then deployed to staging and production with environment-specific configuration injected at deployment time. The trade-off is that building once requires discipline around configuration; environment values should not be baked into the artifact. This prevents the classic problem where staging and production are running different builds even though people think they are testing the same release.

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Details

Rebuilding separately for staging and production.
Baking production secrets into build output.
Not versioning artifacts.
Deploying from a developer machine.

What is the difference between a build artifact and a deployment package, and why does it matter?

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