Build and push container images for splunk universal forwarder.

The following make variables affect building/pushing:

• IMAGE_REGISTRY (default quay.io)
• IMAGE_REPOSITORY (default app-sre)
• FORWARDER_NAME (default splunk-forwarder)

Images will be tagged and pushed as ${IMAGE_REGISTRY}/${IMAGE_REPOSITORY}/${FORWARDER_NAME}:${VERSION}-${HASH}-${COMMIT}, where ${VERSION} and ${HASH} are gleaned from .splunk-version and .splunk-version-hash, respectively, and ${COMMIT} is the 7 char short current commit hash of this repository. Therefore, for local building and testing, you should create personal image repositories and point to them by overriding at least IMAGE_REPOSITORY.

Build images using make build-forwarder.

Push images using make push-forwarder.

Run vulnerability checks using make vuln-check.

This repository builds container images around the splunk universal forwarder at the version and hash specified in the .splunk-version and .splunk-version-hash files, respectively. To build around a new version, simply commit a PR updating those files.

After a PR merge, an integration job is run by app-sre, triggering a build/push of the image to quay.io/app-sre/splunk-forwarder.

To test the app-sre pipeline:

• Create personal repositories and override variables as described above.
• Obtain credentials from your personal repository and set the QUAY_USER and QUAY_TOKEN variables.
• Run make build-push.