Build and Publish an OCI Image
Build a commit-addressed OCI image locally and preserve its digest and retention evidence.
Lab Overview
This scenario lab uses the course-owned gitlab-delivery-demo checkpoint and a deterministic local OCI layout builder. You will inspect the pinned Dockerfile, build an image without privileged Docker-in-Docker or registry credentials, record the immutable digest, and create retention evidence for the next delivery lab. All registry values are synthetic and no live cloud service is required.
What You'll Learn
Inspect a pinned Dockerfile and commit-addressed image contract
Build a deterministic local OCI layout without privileged Docker-in-Docker
Record and verify the image tag, immutable digest, and source commit
Preserve retention metadata that keeps the delivery artifact reproducible
Prerequisites
gitlab-cicd-for-platform-engineers-section-06
Technologies Covered
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