server { listen 80; server_name localhost; location / { proxy_pass http://apollo-next-graphql:3000; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection 'upgrade'; proxy_set_header Host $host; proxy_cache_bypass $http_upgrade; } error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; } }