feat: disable post training in starter but keep the CI test

The default starter distro won't enable post_training by default, to
activate the provider run the distro this env variable
ENABLE_HUGGINGFACE=huggingface

Signed-off-by: Sébastien Han <seb@redhat.com>

.github/workflows/integration-tests.yml

@@ -101,6 +101,11 @@ jobs:
 
       - name: Run Integration Tests
         env:
+          OLLAMA_INFERENCE_MODEL: "llama3.2:3b-instruct-fp16" # for server tests
+          ENABLE_OLLAMA: "ollama" # for server tests
+          OLLAMA_URL: "http://0.0.0.0:11434"
+          SAFETY_MODEL: "llama-guard3:1b"
+          ENABLE_HUGGINGFACE: "huggingface"
           LLAMA_STACK_CLIENT_TIMEOUT: "300" # Increased timeout for eval operations
         # Use 'shell' to get pipefail behavior
         # https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#exit-codes-and-error-action-preference

llama_stack/templates/starter/run.yaml

@@ -179,7 +179,7 @@ providers:
       sqlite_db_path: ${env.SQLITE_STORE_DIR:=~/.llama/distributions/starter}/trace_store.db
       otel_exporter_otlp_endpoint: ${env.OTEL_EXPORTER_OTLP_ENDPOINT:=}
   post_training:
-  - provider_id: huggingface
+  - provider_id: ${env.ENABLE_HUGGINGFACE:=__disabled__}
     provider_type: inline::huggingface
     config:
       checkpoint_format: huggingface

llama_stack/templates/starter/starter.py

@@ -281,7 +281,7 @@ def get_distribution_template() -> DistributionTemplate:
         config=SentenceTransformersInferenceConfig.sample_run_config(),
     )
     post_training_provider = Provider(
-        provider_id="huggingface",
+        provider_id="${env.ENABLE_HUGGINGFACE:=__disabled__}",
         provider_type="inline::huggingface",
         config=HuggingFacePostTrainingConfig.sample_run_config(f"~/.llama/distributions/{name}"),
     )