LITELLM_BACKEND_ROLES read lookup('deployment').groups, which deployment.py
fills from group_names. That variable is host-scoped: it lists only the groups
the host currently being processed belongs to.
On a swarm round the manager carries svc-ai-ollama, svc-ai-lmstudio and
svc-ai-litellm while the workers carry three groups and none of them is an AI
backend. Both branches of LITELLM_CHAT_MODEL therefore missed on a worker and,
with OPENROUTER_API_KEY empty, the model resolved to the empty string.
Only one task made that visible. Every stateful task in the gateway include
carries delegate_to STACK_HOST plus run_once, so it templates in the manager's
scope and wrote the correct model into the database. The assert carries
neither, so it re-templated in each worker's own scope and failed there while
the manager passed.
The manager-only membership is not a placement decision. The swarm test
inventory is provisioned with a single --host MGR, so every role of the round's
closure gets that one host, and extend_inventory then widens only
svc-swarm-node, svc-storage-nfs-client, svc-storage-nfs-server and the round's
own application. The three AI roles declare no placement at all; they are
manager-only because nothing widened them.
Add an inventory selector next to the host-scoped one, built from the play-wide
groups magic var, skipping groups without hosts and Ansible's implicit all and
ungrouped, sorted so the cache key is stable. The key takes it too, or two
hosts with equal group_names but different inventories would share an entry.
The blast radius is two readers, both in 16_ai.yml, and both ask only whether
svc-ai-ollama or svc-ai-lmstudio is present. On the manager the new value gains
exactly svc-storage-nfs-server and svc-bkp-nfs-2-local, neither of which either
reader tests, so the manager's answer does not move and only the workers change,
to match it.
This is the third step on the same line. 46a16127fc set .running; b149ad0d22
corrected that to .groups because a targeted apps= round leaves only the
command-line roles in the whitelist. .groups solves the targeted round and not
the multi-host one, because group_names stays host-scoped either way.
Measured in a two-host play with a real group_vars file and the real lookup:
the worker resolves ollama false through group_names and true through the new
selector, the manager is true both ways, and the assert that failed in CI
passes on both hosts.
Requirement 036 named the host-scoped backend selection as the thing that has
to change and deferred it. That residual is closed, so the paragraph now
describes the selector in use and why the two rejected ones are wrong.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Every script a role ships now lives under `files/<language>/`, and the unit
suite is split the same way: `tests/unit/python/` beside new sibling trees for
the other languages. `tests/lint/filesystem/test_role_files_layout.py` keeps it
that way; directories whose shape is dictated from outside carry a `.nocheck`
naming the constraint (Docker build contexts, WordPress mu-plugins, the Joomla
extension, Odoo addons, Playwright suites, the `files/test/test.sh` harness
that `test-e2e-cli` resolves generically).
This cannot be applied in halves. Moving a file and repointing what names it
are the same change: 14 references resolve only at deploy time, so the tree is
green either before or after, never between.
Those 14 were found by static resolution over every reference class, not by the
test suite -- a full `make quality-high` was green while all of them were
broken:
* 7 `src:` values built from a role variable holding a bare filename
(svc-bkp-remote-2-local, decidim, espocrm, friendica, joomla, pixelfed x2).
The variable doubles as the destination name inside the container, so the
language segment belongs at the call site, not in the variable.
* `sys-service/tasks/04_base.yml` resolved every consumer's systemd script
through `first_found(..., errors='strict')` over `files/script.{sh,py}`.
18 roles ship exactly that and have no template fallback: the play would
have died on each.
* `sys-front-inj-javascript` fell back to `<role>/files/javascript.js`; the
interface now reads `files/javascript/javascript.js`.
* `sys-front-inj-logout/templates/head_sub.j2` built the cache-busting mtime
path through `path_absolute(... 'files', ...)`.
* 4 `ansible.builtin.script:` invocations naming a bare command
(pull.py, prune.sh, set_postgres_superuser_password.sh, ganesha-serve.sh).
* `dev-python/files/shell/install.sh` pointed at a sibling role's script.
Depth-dependent paths inside the moved trees were bumped accordingly: 59
`parents[N]` computations, 12 relative climbs, and the per-role recover CLI,
whose path `cli/administration/recover/recoverers.py` still assembled from the
pre-move location.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5