upstream frontend {
    server frontend:3000;
}

upstream backend {
    server backend:8000;
}

server {
  listen 80;
  location / {
    proxy_pass http://frontend;
  }

  location /api/v1/ {
    proxy_pass http://backend;
  }

  location /minio {
    proxy_pass http://minio;
  }

  # https://stackoverflow.com/questions/70585472/websocketclient-js16-websocket-connection-to-ws-localhost3000-ws-failed-r
  location /ws {
    proxy_pass http://frontend;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
  }
}

# https://min.io/docs/minio/linux/integrations/setup-nginx-proxy-with-minio.html
server {
  listen 9000;
  # Allow special characters in headers
  ignore_invalid_headers off;
  # Allow any size file to be uploaded.
  # Set to a value such as 1000m; to restrict file size to a specific value
  client_max_body_size 0;
  # Disable buffering
  proxy_buffering off;
  proxy_request_buffering off;

  location / {
    proxy_set_header Host $http_host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;

    proxy_connect_timeout 300;
    # Default is HTTP/1, keepalive is only enabled in HTTP/1.1
    proxy_http_version 1.1;
    proxy_set_header Connection "";
    chunked_transfer_encoding off;

    proxy_pass http://minio:9000/; # This uses the upstream directive definition to load balance
  }
}
server {
  listen 9001;
  location / {
    proxy_set_header Host $http_host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-NginX-Proxy true;

    # This is necessary to pass the correct IP to be hashed
    real_ip_header X-Real-IP;

    proxy_connect_timeout 300;

    # To support websockets in MinIO versions released after January 2023
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";

    chunked_transfer_encoding off;

    proxy_pass http://minio:9001/; # This uses the upstream directive definition to load balance and assumes a static Console port of 9001
  }
}