The gateway could reach exactly one remote provider, through a bare
OPENROUTER_API_KEY group_var with an empty-string default and an `{% if %}`
around a single hardcoded model entry. OpenAI and Anthropic had no path at all.
All three are now declared in roles/svc-ai-litellm/meta/secrets.yml, which
mapping.py already calls the application config schema, so a key lands at
applications.svc-ai-litellm.secrets.credentials.<provider>_api_key like every
other credential. Each carries the `type` and `regex` its value must satisfy and
defaults to the central API.<provider>.api_key block, which keeps one
operator-facing place to fill a provider in while the role owns the shape.
type and regex had to become real to be worth declaring. 192 `validation:`
blocks sit in the role schemas today and not one line of Python enforces them,
so a `regex` would have joined a pile of decoration. validate_supplied_value
now runs on every path a value arrives from outside — the --set override, a
value already in the inventory, and the value standing next to a `default:`.
A generated value stays exempt because the algorithm that produced it is named
by the same schema and generate_value takes no schema argument. min_length is
deliberately left unenforced: the generators ignore it, so holding them to it
would fail where nothing is wrong.
The pattern is written for the paste, not for the vendor. OpenAI moved issuance
from sk- to sk-proj- without notice and Anthropic issues sk-ant-api03-; a schema
pinning a prefix would reject a valid key and abort inventory creation. `\S{20,}`
accepts every form those three issue today and one nobody has announced, and
rejects a trailing newline, an embedded space, a truncated copy and a
<placeholder>. A key pasted into the wrong provider's slot is caught at deploy
instead, where the route it publishes answers nothing.
The gateway iterates one LITELLM_REMOTE_BACKENDS list instead of three `{% if %}`
blocks; config.yaml.j2 and env.j2 read the same list and selectattr('key')
decides. LITELLM_CHAT_MODEL falls back to the first configured remote alias
rather than to a hardcoded openrouter/auto.
For CI the keys travel as INFINITO_API_{OPENAI,ANTHROPIC,OPENROUTER}_KEY through
default.env, the passthrough allowlist, the infinito service in compose.yml, the
workflow env block and the development inventory. The compose leg is not
optional: the env lint rejected the change without it, because a key the
inventory reads but compose does not forward resolves to empty inside the
container with no error. The workflow reads `secrets.X || vars.X` so a variable
works as asked while a secret wins, which matters because a variable is not
masked and the development inventory sets MASK_CREDENTIALS_IN_LOGS: false.
An unset key is not an error anywhere: the provider's routes stay unpublished
and the CLI test asserts their absence rather than skipping.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
The gateway publishing a model proves nothing about a backend answering it: LM
Studio shipped a published lmstudio/default route for as long as it had no
model to load. This CLI test closes that gap by asking the running gateway what
it serves and comparing it against what the deployment enabled.
templates/test.env.j2 is both the input and the entry point — discover_cli_roles
finds a role by that file and filters on group_names, so the test runs only
where the gateway is deployed. meta/tests.yml names the container service key so
run_one.yml resolves the node holding it in swarm, and allows 600s for a cold
model load.
probe.py runs inside the gateway container, where the API answers on loopback
and the backends resolve by name, and uses the standard library only because
the image ships the litellm app rather than a test toolchain. It asserts that
every declared model is served, that the LM-Studio-only aliases are present
exactly when that backend is deployed, that no Ollama-backed model is published
without Ollama, that LITELLM_CHAT_MODEL is routable, that an empty deployment
publishes nothing, and that a real completion comes back non-empty.
The fourth assertion is the one worth having: LITELLM_CHAT_MODEL is built from
lookup('deployment').inventory while the config is built from this host's
group_names. Two sources for one fact, and this is where they are made to
agree.
The alias list is rendered whether or not LM Studio is deployed. Gating it
would empty the set in exactly the case the negative direction needs, turning
"a route must not stand without its backend" into a vacuous check.
The verdict logic sits in a pure evaluate() so it is exercised without mocks:
four deployment shapes, each with its positive and negative cases, including a
both-backends case that asserts a shared alias proves nothing about LM Studio
and only the exclusive one counts.
files/test/.nocheck is required rather than convenient. role-files-layout sorts
files/ by language while test-e2e-cli stages files/test/ under that fixed path;
the other 29 CLI test directories carry the same marker.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
kevinveenbirkenbachandClaude Opus 5