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A concise architecture note for deploying a minimal, secure self‑hosted GitHub Actions runner, covering requirements, design, trust boundaries, ops checks, failure modes, and when to redesign.
Our team maintains a Bitbucket repository that uses a self‑hosted runner to build Docker images and push them to an internal container registry. The pipeline step that executes docker push consistently fails with a "permission denied" message, even though the registry URL, repository name, and tag are correct. We have stored the registry username and passwor
github
docker
bitbucket