add completion() for ollama (#280)

llama_stack/providers/tests/inference/provider_config_example.yaml

@@ -4,6 +4,10 @@ providers:
     config:
       host: localhost
       port: 11434
+  - provider_id: meta-reference
+    provider_type: meta-reference
+    config:
+      model: Llama3.2-1B-Instruct
   - provider_id: test-tgi
     provider_type: remote::tgi
     config:

llama_stack/providers/tests/inference/test_inference.py

@@ -132,7 +132,10 @@ async def test_completion(inference_settings):
     params = inference_settings["common_params"]
 
     provider = inference_impl.routing_table.get_provider_impl(params["model"])
-    if provider.__provider_id__ != "meta-reference":
+    if provider.__provider_spec__.provider_type not in (
+        "meta-reference",
+        "remote::ollama",
+    ):
         pytest.skip("Other inference providers don't support completion() yet")
 
     response = await inference_impl.completion(