Nginx - Server, Proxy and Reverse Proxy Configurations

cdn.lk

server {
        listen 80;
        listen [::]:80;
        listen 443 ssl;

        server_name cdn.lk;
        ssl_certificate /home/aslam/server/ssl/cdn.lk.crt;
        ssl_certificate_key /home/aslam/server/ssl/cdn.lk.key;

        location / {
                proxy_pass http://127.0.0.1:3001/bucket/;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_set_header Host $host;
        }

        location /apks {
                proxy_pass http://127.0.0.1:3001/bucket/;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_set_header Host $host;
        }
}

reverse.proxy

server {
        listen 80;
        listen [::]:80;
        listen 443 ssl;

        location / {
                
                set $server http://127.0.0.1:8080;
                
                if ($http_sync_server = "cmb") {
                        set $server http://192.168.8.103;
                }

                proxy_pass $server;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_set_header Host $host;
        }
}

server.lk

server {
        listen 80;
        listen [::]:80;
        listen 443 ssl;

        server_name server.lk;
        ssl_certificate /home/aslam/server/ssl/bundle.crt;
        ssl_certificate_key /home/aslam/server/ssl/server.lk.key;

        location / {
                proxy_pass http://127.0.0.1:3001;
                proxy_http_version 1.1;
                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection "upgrade";
                proxy_set_header Host $host;
		proxy_read_timeout  36000s;
        }
}