fix: cephadm_bootstrap should check /etc/ceph for idempotency

[dotoleeoak]

Module cephadm_bootstrap should check if Ceph config already exists for idempotency check.
The module has been checking '/var/lib/ceph', while the default config dir is '/etc/ceph'.
The bug introduced from upstream: ceph/cephadm-ansible@2645b6a

[Copilot]

Pull request overview

Fixes cephadm_bootstrap idempotency detection by checking for existing Ceph config artifacts under the default config directory (/etc/ceph) instead of /var/lib/ceph, aligning the module behavior with Ceph’s default configuration location.

Changes:

• Update idempotency path checks in cephadm_bootstrap to use /etc/ceph.
• Add unit tests covering idempotent skip behavior and allow_overwrite behavior.
• Add a changelog fragment describing the bugfix.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
plugins/modules/cephadm_bootstrap.py	Switch idempotency “already deployed” checks from /var/lib/ceph to /etc/ceph.
tests/unit/modules/test_cephadm_bootstrap.py	Add unit tests validating the updated idempotency behavior and overwrite override.
changelogs/fragments/cephadm_bootstrap_idempotency.yaml	Document the idempotency path correction (contains a small typo).

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