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@github-actions github-actions released this 03 Jul 20:03
0.1.0
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Learn about vigilant mode.

First public release of compose2pod: convert a Docker Compose file into a POSIX sh script that runs its services as a single Podman pod. Extracted from a CI-proven prototype; no prior versions, so nothing to migrate.

Feature

  • Compose → single Podman pod. compose2pod --target <service> --image <ci-image> [file] reads a compose document and emits a shell script that creates one pod (shared network namespace, no bridge), starts dependencies in topological order, gates startup on health by polling podman healthcheck run, runs the target service, copies out artifacts, and cleans up via an EXIT trap.
  • Supported compose subset. image/build, command, environment/env_file, short-form bind volumes, healthcheck (CMD / CMD-SHELL), depends_on (service_started / service_healthy / service_completed_successfully), and network aliases (mapped to --add-host). Anything outside the subset raises a clear UnsupportedComposeError; ports/restart/stdin_open/tty are ignored with a warning.
  • CLI and library API. Use the compose2pod command (or python -m compose2pod), or import validate, emit_script, EmitOptions, and UnsupportedComposeError.
  • JSON always, YAML optional. The core reads compose-as-JSON with zero dependencies (--format json, or pipe yq); pip install compose2pod[yaml] adds direct YAML input.

Why

CI runners often give unprivileged containers a read-only /proc/sys, so netavark can't create bridge networks (upstream declined: podman#20713 closed, netavark#910 unmerged), and there's no systemd to schedule podman healthchecks. docker compose and podman kube play can't work there. A single pod shares one netns (no bridge, no netavark), services reach each other over 127.0.0.1, and health-gated depends_on works via manual podman healthcheck run polling. No existing tool covered that combination.

Packaging

  • Published to PyPI via Trusted Publishing: pip install compose2pod (core, zero runtime dependencies) or pip install compose2pod[yaml] (adds PyYAML).
  • requires-python >=3.10,<4; tested on CPython 3.10–3.14. Typed (py.typed). MIT licensed.

Downstream

No action needed — first release, no public API predecessors.

Internals

  • 78 tests at 100% line coverage (enforced); ruff select=ALL, ty, and eof-fixer clean.
  • One known follow-up is tracked in planning/deferred.md: hardening the pod-cleanup trap's nested quoting for the library API path (unreachable from the CLI, which validates pod names).
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