fix: Replace Ingress with HTTPRoute (Gateway API)

Switch from Ingress to HTTPRoute for Gateway API compatibility.

Changes:
- Remove k8s/ingress.yaml
- Add k8s/httproute.yaml with Gateway API configuration
- Update kustomization.yaml to reference httproute.yaml
- Update README.md references from Ingress to HTTPRoute

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

README.md

@@ -80,7 +80,7 @@ kubectl port-forward statefulset/antigravity 5800:5800
 open http://localhost:5800
 ```
 
-Or configure Ingress for external access.
+Or configure HTTPRoute (Gateway API) for external access via your domain.
 
 ## Environment Variables
 

k8s/httproute.yaml

@@ -0,0 +1,20 @@
+---
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: antigravity
+spec:
+  parentRefs:
+  - name: gateway  # Replace with your Gateway name
+    namespace: gateway-system  # Replace with your Gateway namespace
+  hostnames:
+  - "antigravity.example.com"  # Replace with your domain
+  rules:
+  - matches:
+    - path:
+        type: PathPrefix
+        value: /
+    backendRefs:
+    - name: antigravity
+      port: 5800
+      weight: 1

k8s/ingress.yaml

@@ -1,27 +0,0 @@
----
-apiVersion: networking.k8s.io/v1
-kind: Ingress
-metadata:
-  name: antigravity
-  annotations:
-    cert-manager.io/cluster-issuer: "letsencrypt-prod"
-    nginx.ingress.kubernetes.io/proxy-read-timeout: "3600"
-    nginx.ingress.kubernetes.io/proxy-send-timeout: "3600"
-    nginx.ingress.kubernetes.io/websocket-services: "antigravity"
-spec:
-  ingressClassName: nginx
-  tls:
-  - hosts:
-    - antigravity.example.com  # Replace with your domain
-    secretName: antigravity-tls
-  rules:
-  - host: antigravity.example.com  # Replace with your domain
-    http:
-      paths:
-      - path: /
-        pathType: Prefix
-        backend:
-          service:
-            name: antigravity
-            port:
-              number: 5800

k8s/kustomization.yaml

@@ -7,7 +7,7 @@ namespace: default
 resources:
   - configmap.yaml
   - statefulset.yaml
-  - ingress.yaml
+  - httproute.yaml
 
 # Uncomment to create secrets from files
 # secretGenerator: