[RHOAIENG-34715] - Expose model listing endpoint as top-level

Update base model endpoint to be MAAS_GATEWAY_URL/v1/models.

Signed-off-by: Filippe Spolti <[email protected]>

Author: spolti

deployment/infrastructure/kustomize-templates/maas-api/07-maas-api-routing.yaml

@@ -15,10 +15,27 @@ spec:
   hostnames:
     - "maas-api.${CLUSTER_DOMAIN}"
   rules:
+    # OpenAI-compatible /v1/models endpoint at top level
     - matches:
         - path:
             type: PathPrefix
-            value: /
+            value: /v1/models
+      backendRefs:
+        - name: maas-api
+          namespace: platform-services
+          port: 80
+          weight: 100
+    # All other maas-api endpoints remain under /maas-api prefix
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /maas-api
+      filters:
+        - type: URLRewrite
+          urlRewrite:
+            path:
+              type: ReplacePrefixMatch
+              replacePrefixMatch: /
       backendRefs:
         - name: maas-api
           namespace: platform-services

maas-api/deploy/overlays/dev/infra/networking/httproute.yaml

@@ -7,6 +7,16 @@ spec:
     - name: openshift-ai-inference
       namespace: openshift-ingress
   rules:
+    # OpenAI-compatible /v1/models endpoint at top level
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /v1/models
+      backendRefs:
+        - name: maas-api
+          port: 8080
+          weight: 100
+    # All other maas-api endpoints remain under /maas-api prefix
     - matches:
         - path:
             type: PathPrefix