Add signed runtime distribution pipeline

tools/release/runtime/nginx.conf

@@ -0,0 +1,41 @@
+pid /tmp/nginx.pid;
+worker_processes auto;
+
+events {
+    worker_connections 1024;
+}
+
+http {
+    include /etc/nginx/mime.types;
+    default_type application/octet-stream;
+    access_log /dev/stdout;
+    error_log /dev/stderr warn;
+    sendfile on;
+    server_tokens off;
+    client_body_temp_path /tmp/client_temp;
+    proxy_temp_path /tmp/proxy_temp;
+
+    server {
+        listen 8080;
+        root /usr/share/nginx/html;
+
+        location = /health {
+            access_log off;
+            default_type text/plain;
+            return 200 "ok\n";
+        }
+
+        location /api/ {
+            proxy_pass http://load-balancer:8000;
+            proxy_http_version 1.1;
+            proxy_set_header Host $host;
+            proxy_set_header X-Forwarded-Host $host;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        }
+
+        location / {
+            try_files $uri $uri/ /index.html;
+        }
+    }
+}