nginx.websockets.conf

server {
    ssl_session_timeout 10m;
    ssl_certificate {{ path_to_crt }};
    ssl_session_cache shared:SSL:10m;
    server_name {{ hostname }};
    ssl_certificate_key {{ path_to_key }};
    client_max_body_size 1024m;
    ssl on;
    listen 443;

    location / {
        proxy_pass https://127.0.0.1:8443/;
        proxy_http_version  1.1;
        proxy_set_header    Host $server_name:$server_port;
        proxy_set_header    X-Forwarded-Host $http_host;    # necessary for proper absolute redirects and TeamCity CSRF check
        proxy_set_header    X-Forwarded-Scheme $scheme;
        proxy_set_header    X-Forwarded-Proto $scheme;
        proxy_set_header    X-Forwarded-For $remote_addr;
        #proxy_set_header Upgrade $http_upgrade;
        #proxy_set_header Connection "upgrade";

        #proxy_set_header Host $http_host;   # required for Docker client sake
        #proxy_set_header X-Forwarded-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-Scheme $scheme;
    }
    location /scripts/execution/io {
        proxy_pass https://127.0.0.1:8443;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        #proxy_set_header Upgrade websocket;
        proxy_set_header Connection "upgrade";
        proxy_read_timeout 86400;
        proxy_redirect     off;
        proxy_set_header   Host $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-Host $server_name;
    }
}
server {
    return 301 https://$host$request_uri;
    server_name {{ hostname }};
    listen 80;
}