ops: attach vault-dash to proxy-net and document vd1 route

docker-compose.deploy.yml

@@ -17,9 +17,22 @@ services:
       CORS_ORIGINS: ${CORS_ORIGINS:-*}
     ports:
       - "${APP_BIND_ADDRESS:-127.0.0.1}:${APP_PORT:-8000}:8000"
+    networks:
+      - default
+      - proxy-net
     healthcheck:
-      test: ["CMD", "curl", "-fsS", "http://127.0.0.1:8000/health"]
+      test:
+        [
+          "CMD",
+          "python",
+          "-c",
+          "import sys, urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health', timeout=3); sys.exit(0)",
+        ]
       interval: 30s
       timeout: 5s
       retries: 5
       start_period: 20s
+
+networks:
+  proxy-net:
+    external: true