nginx.conf

user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
	worker_connections 1024;
	# multi_accept on;
}

http {

	map $http_upgrade $connection_upgrade {
    		default upgrade;
    		'' close;
	}

	##
	# Basic Settings
	##

	sendfile on;
	tcp_nopush on;
	tcp_nodelay on;
	keepalive_timeout 65;
	types_hash_max_size 2048;
	# server_tokens off;

	server_names_hash_bucket_size 64;
	# server_name_in_redirect off;

	include /etc/nginx/mime.types;
	default_type application/octet-stream;

	##
	# SSL Settings
	##

	ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; # Dropping SSLv3, ref: POODLE
	ssl_prefer_server_ciphers on;

	##
	# Logging Settings
	##

	access_log /var/log/nginx/access.log;
	error_log /var/log/nginx/error.log;

	##
	# Gzip Settings
	##

	gzip on;

	# gzip_vary on;
	# gzip_proxied any;
	# gzip_comp_level 6;
	# gzip_buffers 16 8k;
	# gzip_http_version 1.1;
	# gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

	##
	# Virtual Host Configs
	##

	include /etc/nginx/conf.d/*.conf;
	include /etc/nginx/sites-enabled/*;
}

sites-enabled (Backend)

server {
        root /var/www/foorum.aldhaneka.space;
        index index.html;

        server_name golang-webchat-server.sg.aldhaneka.me;

        location / {
                proxy_pass http://localhost:8000;
                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;
		
		proxy_set_header X-Forwarded-For $remote_addr;

		proxy_read_timeout 36000s;


        }

        access_log /var/log/nginx/golang-webchat-server.sg.aldhaneka.space.access.log;
        error_log /var/log/nginx/golang-webchat-server.sg.aldhaneka.space.error.log;

    listen [::]:443 ssl; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/golang-webchat-server.sg.aldhaneka.me/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/golang-webchat-server.sg.aldhaneka.me/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}



server {
    if ($host = golang-webchat-server.sg.aldhaneka.me) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


        listen 80;
        listen [::]:80;

        server_name golang-webchat-server.sg.aldhaneka.me;
    return 404; # managed by Certbot

	location /room {
      		proxy_set_header X-Forwarded-For $remote_addr;
      		proxy_set_header Host $host;

      		proxy_pass https://ws-backend;

      		proxy_http_version 1.1;
		proxy_set_header Upgrade $http_upgrade;
      		proxy_set_header Connection "upgrade";
    	}
}

upstream ws-backend {
	# enable sticky session based on IP
	ip_hash;

	server localhost:8000;
	server localhost:8000;
	server localhost:8000;
}

sites-enabled (front end)

server {

        root /var/www/golang-webchat.sg.aldhaneka.me;
        index index.html;

        server_name golang-webchat.sg.aldhaneka.me;

        location / {
                try_files $uri $uri/ /index.html$is_args$args;
        }
        access_log /var/log/nginx/golang-webchat.sg.aldhaneka.me.access.log;
        error_log /var/log/nginx/golang-webchat.sg.aldhaneka.me.error.log;

    listen [::]:443 ssl; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/golang-webchat.sg.aldhaneka.me/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/golang-webchat.sg.aldhaneka.me/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot

}
server {
    if ($host = golang-webchat.sg.aldhaneka.me) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


        listen 80;
        listen [::]:80;

        server_name golang-webchat.sg.aldhaneka.me;
    return 404; # managed by Certbot


}