Initialize reverse proxy and TLS workshop lab setup

proxy/nginx.conf

@@ -0,0 +1,47 @@
+events {
+  worker_connections 1024;
+}
+
+http {
+  include /etc/nginx/mime.types;
+  default_type application/octet-stream;
+  sendfile on;
+  server_tokens off;
+
+  upstream backend_a {
+    server backend-a:80;
+  }
+
+  upstream backend_b {
+    server backend-b:80;
+  }
+
+  server {
+    listen 80;
+    server_name _;
+
+    location / {
+      root /usr/share/nginx/html;
+      try_files $uri $uri/ /index.html;
+    }
+
+    location /service/a {
+      proxy_pass http://backend_a/;
+      proxy_set_header Host $host;
+      proxy_set_header X-Forwarded-Proto http;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    }
+
+    location /service/b {
+      proxy_pass http://backend_b/;
+      proxy_set_header Host $host;
+      proxy_set_header X-Forwarded-Proto http;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    }
+
+    location /healthz {
+      default_type text/plain;
+      return 200 "ok\n";
+    }
+  }
+}