How can I get Goaccess running under Nginx?

Question

I need to configure Nginx to make Goaccess work.

My environment is:

• Ubuntu 18.04 LTS
• Nginx 1.17.1 [ self-configure , path=/root ]
• Lets Encrypt
• sshfs
• goaccess [ --enable-utf8 --enable-geoip=legacy --with-openssl ]

Since this is a self-answered Q/A I'm not including my failed attempts, but instead posting my solution. Feel free to edit it or post another answer improving the current code.

Answer 1

This solution/configuration solved my 400 and 502 errors

nginx conf [ key point ]

upstream goaccess {
    server localhost:7890;
    keepalive 60;
}

server {
    listen 443 ssl; 
    ssl_certificate /etc/letsencrypt/live/test.com/fullchain.pem; 
    ssl_certificate_key /etc/letsencrypt/live/test.com/privkey.pem; 
    include /etc/letsencrypt/options-ssl-nginx.conf; 
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
    server_name rp.test.com;
    root  /var/www/goaccess;
    index  index.html;
    location / {
            try_files $uri  $uri/ @goaccess;
            alias /var/www/goaccess/;
            index  index.html;
            proxy_set_header Upgrade $http_upgrade;
            proxy_buffering on;            
            proxy_set_header Connection "Upgrade";
            proxy_connect_timeout 600s;
            proxy_send_timeout 600s;
            proxy_read_timeout 600s;
            proxy_temp_path  /var/nginx/proxy_temp;
    }

    location @goaccess{
            proxy_pass http://goaccess;
    }

}

goaccess [ goaccess.sh ]

#!/bin/sh
goaccess  /root/test2_nginx_log/www.test2.com_access.log -o /var/www/goaccess/index.html --real-time-html --origin=https://rp.test.com --addr=0.0.0.0 --port=7890 --ws-url=wss://rp.test.com --ssl-cert=/etc/letsencrypt/live/test.com/fullchain.pem --ssl-key=/etc/letsencrypt/live/test.com/privkey.pem  --time-format=%H:%M:%S --date-format=%d/%b/%Y --log-format=COMBINED

sshfs [ run_sshfs.sh ]

#!/bin/sh
if [ $(mount | grep 'root@111.111.111.xxx:/data/log/server/nginx' | wc -l) -ne 1 ]
then
    echo 'yourpassword' | sshfs root@111.111.111.xxx:/data/log/server/nginx /root/test2_nginx_log -o password_stdin,allow_other
else
    exit 0
fi

Finally this sh for check goaccess was running or not and the mount was online or not then restart that.

check and restart [ cr.sh ]

#!/bin/bash
if pgrep -x "goaccess" > /dev/null 
then
    clear ;
    echo "goaccess is running!"
    sleep 1
    echo "now cutting down goaccess...please wait"
    sleep 2
    kill `pgrep goaccess`
    echo "cut down done"
    sleep 1
    echo "now check mount test2 nginx log folder..."
    cd /root/ && ./run_sshfs.sh
    sleep 2
    echo "mount done"
    sleep 1
    echo "now restart goaccess..."
    cd /root/ && sudo nohup ./goaccess.sh > goaccess.log 2>&1 &
    sleep 2
    echo "goaccess was restarting success!"
    sleep 1
    echo "now all done!"
    exit 1
else
    clear ;
    echo "goaccess is down!"
    sleep 1
    echo "now check mount test2 nginx log folder..."
    cd /root/ && ./run_sshfs.sh
    sleep 2
    echo "mount done"
    sleep 1
    echo "now start goaccess..."
    cd /root/ && sudo nohup ./goaccess.sh > goaccess.log 2>&1 &
    sleep 2
    echo "goaccess was starting success!"
    sleep 1
    echo "now all done!"
fi

That all. Now open your url which looks like my 'rp.test.com' you should see something similar below (if without any other special condition).

Running:

Notice: This is CROTEL's solution initially posted in question, subsequently moved by community members to a community wiki answer to conform to Stack Overflow's Q/A format