Security
Can I restrict outbound traffic?
Quick answer
Yes. Egress policies default-deny and allow only the destinations you list.
The detail that matters
Start in audit-only mode for a week — the real allowlist is never the one you would have guessed.
Your next build could be twice as fast, at half the price
Start free. Migrating away is the same one line, and we publish that diff too.
Related
Are snapshot runners safe for public repositories?Only if snapshots are taken from trusted branches and never from fork pull requests.How do I generate an SBOM?Enable buildx's sbom: true output, or run syft against the built image.How do I attach build provenance?Use actions/attest-build-provenance, or buildx's provenance: true attestation.How do I pass secrets into a Docker build?Use BuildKit build secrets with --secret, never ARG or ENV.