Ansible warns that the name is already in use and carries on. Carrying on is the problem: inside the loop the original value is gone, so every lookup, template and nested include reading that name sees the loop item instead, and the task still reports success. The damage lands in a log nobody greps.
The lint collects every key declared in group_vars and in each role's vars or defaults, then reports any loop_var matching one. A denylist of known-bad names would have found application_id and missed domain, which is the same class in four more places.
All seven existing sites are marked, each with the reason read at the source rather than inferred. The three application_id loops pass the role id as the item, and the include_vars that follows loads that role's own application_id with the same value, so both meanings coincide by construction. The four domain loops hand the vhost to sys-stk-front-proxy, whose tasks read front_proxy_domain from exactly that name, so the shadowing is the interface.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Add tests/lint/repository/test_task_file_numbering.py: numbered task
files use exactly two leading digits, a numbered *_core.yml must be
00_core.yml, per directory the numbers are unique/consecutive and start
at 01 (00 with a core file), numbered includes appear in ascending
order, and shared helpers live in tasks/utils/ instead of the numbered
chain.
Apply it across every role: rename NN_core.yml to 00_core.yml with a
consecutive down-shift of the siblings, move letter-suffix children into
a subdirectory named after their parent task, relocate helpers included
from more than one place into tasks/utils/, and update every reference
(include_tasks, path_absolute, .ansible-lint-ignore, requirement docs).
Legacy narration comments in the touched files are deleted; the upstream
xwiki.properties reference block opts out via nocheck. The unused
MAILU_IP6_PUBLIC var (only ever named in now-removed comments) is dropped.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5