feat: add retry logic for transient Galaxy API failures

[Copilot]

Molecule tests fail when Galaxy API returns 500 errors or KeyError: 'results' during collection installation. This happens intermittently due to Galaxy server overload.

Changes

• ansible.cfg: Configure 180s timeout for Galaxy API requests (default is 60s)
• Molecule action: Wrap molecule test with retry logic (3 attempts, 30s delay between attempts)

The retry logic in .github/actions/molecule/action.yaml:

MAX_RETRIES=3
RETRY_DELAY=30
ATTEMPT=1

while [ $ATTEMPT -le $MAX_RETRIES ]; do
  echo "Attempt $ATTEMPT of $MAX_RETRIES..."
  
  if sudo --preserve-env=... molecule test -s ${{ inputs.scenario }}; then
    exit 0
  fi
  
  EXIT_CODE=$?
  if [ $ATTEMPT -lt $MAX_RETRIES ]; then
    echo "Retrying in ${RETRY_DELAY}s..."
    sleep $RETRY_DELAY
    ATTEMPT=$((ATTEMPT + 1))
  else
    exit $EXIT_CODE
  fi
done

This handles transient API failures without masking legitimate errors.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Jobs often fail with Galaxy giving 500s</issue_title>
<issue_description>This is a failure that can happen early:

Run sudo --preserve-env=ANSIBLE_PYTHON_INTERPRETER,ATMOSPHERE_NETWORK_BACKEND,MOLECULE_CSI_DRIVER env "PATH=$PATH" molecule test -s aio
WARNING  Molecule scenarios should migrate to 'extensions/molecule'
INFO     [aio > discovery] scenario test matrix: dependency, cleanup, destroy, syntax, create, prepare, converge, idempotence, side_effect, verify, cleanup, destroy
INFO     [aio > prerun] Performing prerun with role_name_check=0...
WARNING  Retrying execution failure 250 of: ansible-galaxy collection install -vvv community.crypto:2.2.3
ERROR    Command ansible-galaxy collection install -vvv community.crypto:2.2.3, returned 250 code:
Starting galaxy collection install process
Process install dependency map
the full traceback was:

Traceback (most recent call last):
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/cli/__init__.py", line 658, in cli_executor
    exit_code = cli.run()
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/cli/galaxy.py", line 773, in run
    return context.CLIARGS()
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/cli/galaxy.py", line 120, in method_wrapper
    return wrapped_method(*args, **kwargs)
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/cli/galaxy.py", line 1438, in execute_install
    self._execute_install_collection(
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/cli/galaxy.py", line 1487, in _execute_install_collection
    install_collections(
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/collection/__init__.py", line 735, in install_collections
    dependency_map = _resolve_depenency_map(
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/collection/__init__.py", line 1852, in _resolve_depenency_map
    return collection_dep_resolver.resolve(
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/resolvelib/resolvers.py", line 546, in resolve
    state = resolution.resolve(requirements, max_rounds=max_rounds)
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/resolvelib/resolvers.py", line 397, in resolve
    self._add_to_criteria(self.state.criteria, r, parent=None)
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/resolvelib/resolvers.py", line 148, in _add_to_criteria
    matches = self._p.find_matches(
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/dependency_resolution/providers.py", line 477, in find_matches
    match for match in self._find_matches(list(requirements))
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/dependency_resolution/providers.py", line 253, in _find_matches
    coll_versions =  if preinstalled_candidates else self._api_proxy.get_collection_versions(first_req)  # type: t.Iterable]
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/collection/galaxy_api_proxy.py", line 106, in get_collection_versions
    return set(
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/collection/galaxy_api_proxy.py", line 106, in <genexpr>
    return set(
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/collection/galaxy_api_proxy.py", line 87, in _get_collection_versions
    raise last_error
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/collection/galaxy_api_proxy.py", line 66, in _get_collection_versions
    versions = api.get_collection_versions(requirement.namespace, requirement.name)
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/api.py", line 145, in wrapped
    return method(self, *args, **kwargs)
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/atmosphere/.venv/lib/python3.10/site-packages/ansible/galaxy/api.py", line 874, in get_collection_versions
    data = self._call_galaxy(versions_url, error_context_msg=error_context_msg, cache=True, cache_key=cache_key)
  File "/opt/github/actions-runner/2.330.0/_work/atmosphere/...

</details>



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- Fixes vexxhost/atmosphere#3582

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