Two integration tests against a real Docker daemon:
- test_ls_remote_succeeds_against_fresh_gate: a freshly-started
gate has its empty bare repo exported via git daemon; ls-remote
from a sibling container on the internal network returns no
refs and exits 0.
- test_push_with_secret_is_rejected: the PRD 0008 success
criterion — a push containing an AKIA-shaped synthetic that
trips gitleaks's aws-access-token rule is rejected by the
pre-receive hook with a non-zero exit on the client and a
gitleaks rejection in the response.
Dockerfile.git-gate switches base to zricethezav/gitleaks (alpine
3.22 + gitleaks v8.30.1, pinned by digest) since gitleaks isn't
packaged for alpine, and adds git-daemon (the sub-package the
listener needs; the core git binary in the base doesn't include
the daemon).
Dockerfile.git-gate builds a small alpine image with git,
openssh-client, and gitleaks; the directory layout the entrypoint
and per-upstream cp's expect is pre-created in the image so docker
cp can target paths beneath /etc/git-gate and /git-gate/creds at
container-create time (cp doesn't create intermediate dirs).
DockerGitGate.start mirrors DockerSSHGate's shape: build, create,
cp the rendered entrypoint + hook + per-upstream identity files
(plus a known_hosts file synthesized from KnownHostKey when set),
attach the egress network, start. build_image gains an optional
dockerfile= argument so the gate can build from its own
Dockerfile in the shared context.
PRD: docs/prds/0008-git-gate.md