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matrix-docker-ansible-deploy/molecule-shared/vars.yml
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Slavi PantaleevandClaude Opus 5 9370fdf4b4 Share the Molecule scaffolding and add just molecule
Three things that would not have scaled to 70 roles:

- The Python and Ansible dependency pins were about to be copied into every
  role. They now live once in molecule-shared/, which scenarios reference
  relatively, so they cannot drift apart.
- The helper container images used for probing were hardcoded inline. They
  are pinned once in molecule-shared/vars.yml, carry `# renovate:`
  annotations, and a custom manager in .github/renovate.json keeps them
  current - verified with a local Renovate dry run, which offers
  curl 8.11.1 -> 8.21.0 and python 3.13 -> 3.14-alpine. Seventy invisible
  hardcodes is the blindness class we have been removing elsewhere.
- Running a scenario meant knowing the venv and cd incantation. `just
  molecule <role>` does it, and with no argument lists the roles that have
  a scenario.

Molecule is deliberately not wired into prek: a run takes minutes, pulls
images and needs Docker, which is fine on request and not fine per commit.

docs/molecule-testing.md covers how to run and write these, including the
four things a role here needs that a standalone role does not. AGENTS.md
points at it rather than carrying the detail.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-27 18:02:53 +03:00

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YAML

---
# Helper container images the scenarios use for probing. They live here rather
# than inline in each verify.yml so that there is one pin per image instead of
# one per role, and so Renovate can see them (see the customManager in
# .github/renovate.json).
# Used to reach a role's container over its own container network. A helper is
# needed because the role publishes no host port - exactly as in a real
# deployment - and publishing one for the test would collide between scenarios
# running in parallel.
# renovate: datasource=docker depName=docker.io/curlimages/curl
molecule_shared_image_curl: "docker.io/curlimages/curl:8.11.1"
# Used for small stub services (a fake homeserver, and so on).
# renovate: datasource=docker depName=docker.io/library/python
molecule_shared_image_python: "docker.io/library/python:3.13-alpine"