feat: Add default rules for API, SSE, and frontend HTTPRoutes (#522)

Author: germangarces

charts/flagsmith/templates/httproute-api.yaml

@@ -23,7 +23,25 @@ spec:
   hostnames:
     {{- toYaml . | nindent 4 }}
   {{- end }}
-  # TODO: add default rules for /api/, /health/, /admin/, /static/admin/
   rules:
+  {{- if .Values.gateway.api.rules }}
     {{- toYaml .Values.gateway.api.rules | nindent 4 }}
+  {{- else }}
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /api/
+        - path:
+            type: PathPrefix
+            value: /health/
+        - path:
+            type: PathPrefix
+            value: /admin/
+        - path:
+            type: PathPrefix
+            value: /static/admin/
+      backendRefs:
+        - name: {{ $fullName }}-api
+          port: {{ $svcPort }}
+  {{- end }}
 {{- end }}

charts/flagsmith/templates/httproute-frontend.yaml

@@ -31,5 +31,8 @@ spec:
         - path:
             type: PathPrefix
             value: /
+      backendRefs:
+        - name: {{ $fullName }}-frontend
+          port: {{ $svcPort }}
   {{- end }}
 {{- end }}

charts/flagsmith/templates/httproute-sse.yaml

@@ -23,7 +23,16 @@ spec:
   hostnames:
     {{- toYaml . | nindent 4 }}
   {{- end }}
-  # TODO: add default rule for /
   rules:
+  {{- if .Values.gateway.sse.rules }}
     {{- toYaml .Values.gateway.sse.rules | nindent 4 }}
+  {{- else }}
+    - matches:
+        - path:
+            type: PathPrefix
+            value: /
+      backendRefs:
+        - name: {{ $fullName }}-sse
+          port: {{ $svcPort }}
+  {{- end }}
 {{- end }}

charts/flagsmith/values.yaml

@@ -548,13 +548,13 @@ gateway:
     enabled: false
     parentRefs: []
     hostnames: []
-    # rules defines routing rules. No defaults — must be provided by the user.
+    # rules defines routing rules. If empty, defaults to /api/, /health/, /admin/, /static/admin/ routing to the API service.
     rules: []
   sse:
     enabled: false
     parentRefs: []
     hostnames: []
-    # rules defines routing rules. No defaults — must be provided by the user.
+    # rules defines routing rules. If empty, defaults to "/" routing to the SSE service.
     rules: []
 
 jobs: