ActionCable WebSocket with NginX proxy

ws-with-nginx-proxy

server {
    listen 80;
    listen 443 ssl;
    server_name servername.domain;

    ssl on;
    ssl_certificate /etc/apache2/ssl/apache.crt;
    ssl_certificate_key /etc/apache2/ssl/apache.key;
    ssl_session_timeout 5m;
    ssl_protocols SSLv2 SSLv3 TLSv1;
    ssl_ciphers HIGH:!aNULL:!eNULL:!EXPORT:!CAMELLIA:!DES:!MD5:!PSK:!RC4;
    ssl_prefer_server_ciphers on;

    location / {
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;

        proxy_pass http://0.0.0.0:3000;
        proxy_redirect off;
    }
    location /cable {
        proxy_pass http://0.0.0.0:3000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "Upgrade";
    }
}