feat(api): ensure StackRunConfig

StackRunConfig is part of our public API, ensure stability of this datatype using a pytest snapshot test.

If the pydantic model changes, it will fail.

Signed-off-by: Charlie Doern <cdoern@redhat.com>

Author: cdoern

.github/workflows/conformance.yml

@@ -69,3 +69,7 @@ jobs:
           oasdiff breaking --fail-on ERR base/docs/_static/llama-stack-spec.yaml docs/_static/llama-stack-spec.yaml --match-path '^/v1/openai/v1' \
           --match-path '^/v1/vector-io' \
           --match-path '^/v1/vector-dbs'
+
+      - name: Run Pydantic Model Test
+        run: |
+          python ./scripts/pydantic-diff.py

scripts/pydantic-diff.py

@@ -0,0 +1,9 @@
+from llama_stack.core.datatypes import StackRunConfig
+
+def test_build_config_v1_schema_is_unchanged(snapshot):
+    """
+    Ensures the V1 schema never changes.
+    """
+    snapshot.assert_match(
+        StackRunConfig.model_json_schema(), 'stored_build_config_v1_schema.json'
+    )