mirror of
https://github.com/kevinveenbirkenbach/computer-playbook.git
synced 2026-11-08 11:46:35 +00:00
kevinveenbirkenbachandClaude Opus 5
819d710aaa
Whether a service gets a GPU needs two facts to agree: the declaration in
applications under services.<service>.gpu, and sys-svc-container's stat of
/dev/nvidia0 on the target host. The conjunction was restated at each call
site, and web-svc-libretranslate restated only the first half: it appended the
-cuda image suffix from the declaration alone. That tag has no arm64 manifest,
so the build died with `no match for platform in manifest`, which 10 of the 79
failing jobs of run 37252453141 carry, surfacing through
sys-svc-compose/handlers/{swarm,compose}.yml.
lookup('gpu', application_id[, service]) is now the single place that answers
it. Three call sites collapse onto it: both libretranslate roles' *_GPU var
and the runtime line of sys-svc-container's resource template. A lookup runs
on the controller and cannot stat the target, so it reads the register out of
the play's variables; the applications view comes through lookup_loader
because test_no_cache_imports_in_lookups forbids a lookup the direct
utils.cache import.
The coercion is ansible's boolean(), not python's bool(). The call sites this
replaces read the flag through Jinja's `| bool`, which answers False for the
strings "false", "False", "0" and "no" where bool() answers True, and a
templated declaration renders to such a string. Measured over 13 values the
two disagree on four of them; boolean(strict=False) matches `| bool` on all
13. Two tests pin it, and with bool() restored exactly the "false" string test
fails.
Measured rather than argued: over the merged applications, 1688
(application, service) pairs resolve the predicate identically under both
coercions, 0 disagreements. The predicate turns on for 21 services, not 5,
because resource_filter falls back to services.<entity_name>.gpu and every
service of a role whose entity declares gpu inherits it.
The assert_gpu include in both roles dropped its two trailing conditions: they
re-checked the register that *_GPU now already contains.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>