Using Build Artifacts
In this guide we’ll walk through using the Buildkite Agent’s artifact support to store and retrieve files between different steps in a build pipeline.
On this page:
To automatically upload artifacts created by a build step, set the
artifact_paths attribute on your command step. In this example, any artifacts that are created in the
coverage directories, as well as any of their subdirectories, will be uploaded automatically:
steps: - label: "🔨 Tests" command: - "npm install" - "tests.sh" artifact_paths: - "logs/**/*" - "coverage/**/*"
If you've defined your pipeline in Buildkite, you can set this field on a command step using the “Automatic Artifact Uploading” option:
Defining a pattern here will cause your agents to automatically upload any artifacts that match your file path pattern.
You can also perform an artifact upload manually in your build scripts by using
buildkite-agent artifact command. In this example, the file
build.tar.gz from the
pkg directory will be uploaded to the default destination:
buildkite-agent artifact upload pkg/build.tar.gz
You can then download the artifact in subsequent build steps (even if the build step is running on a different build server).
For full documentation of the
buildkite-agent artifact upload command, and examples of supported glob patterns, see the buildkite-agent artifact upload documentation.
You can download artifacts created by a build job using the
buildkite-agent artifact download command. For example:
buildkite-agent artifact download pkg/build.tar.gz pkg/
If an artifact was previously uploaded at
pkg/build.tar.gz, the above command will download it to the
buildkite-agent artifact command will find the last file uploaded with the matching filename, no matter which build step uploaded it. If you want to target an artifact from a particular build step use the
--step argument. For example:
buildkite-agent artifact download build.zip tmp/ --step build
This will download the
build.zip file from the pipeline step with the label "build".
For full documentation and examples, see the buildkite-agent artifact download documentation.
Downloading Artifacts Outside a Running Build
buildkite-agent artifact download command only works within the context of a running build.
If you want to download an artifact from outside a build use our Artifact Download API.
See the Buildkite Agent artifact documentation for a full list of options and details of Buildkite’s artifact support.