add a testgrid proxy

Author: upodroid

kubernetes/gke-prow/prow/gateway.yaml

@@ -99,5 +99,5 @@ spec:
   - testgrid-api.prow.k8s.io
   rules:
   - backendRefs:
-    - name: testgrid-api
+    - name: testgrid-proxy
       port: 80

kubernetes/gke-prow/prow/testgrid.yaml

@@ -105,3 +105,63 @@ spec:
   - protocol: TCP
     port: 80
     targetPort: 80
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: testgrid-proxy
+  labels:
+    app: testgrid-proxy
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: testgrid-proxy
+  template:
+    metadata:
+      labels:
+        app: testgrid-proxy
+    spec:
+      containers:
+      - name: nginx
+        image: cgr.dev/chainguard/nginx
+        ports:
+        - name: http
+          containerPort: 80
+        volumeMounts:
+        - name: nginx-config
+          mountPath: /etc/nginx/conf.d/nginx.conf
+          subPath: nginx.conf
+      volumes:
+      - name: nginx-config
+        configMap:
+          name: nginx-proxy-config
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: nginx-proxy-config
+data:
+  nginx.conf: |
+    server {
+        listen 80;
+        server_name localhost;
+
+        location / {
+            proxy_pass http://testgrid-data.k8s.io/;
+        }
+    }
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: testgrid-proxy
+spec:
+  selector:
+    app: testgrid-proxy
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 80
+  type: ClusterIP