nginx config

default.conf

server {
    listen 80;
    server_name example.com www.example.com;
    access_log /var/log/nginx/example.access.log;
    rewrite ^ https://$server_name$request_uri? permanent;
    location / {
        proxy_pass    http://127.0.0.1:8080/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
    }
}

server {
    listen        443 ssl;
    server_name  example www.example.com;

    ssl_certificate	  /etc/ssl/certs/example.bundle;
    ssl_certificate_key  /etc/ssl/certs/example.key;

    ssl_session_cache shared:SSL:1m;
    ssl_session_timeout  5m;

    ssl_ciphers  HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers   on;

    location / {
        proxy_pass    http://127.0.0.1:8080/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
    }
}

nginx.conf

user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


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

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;
    map $http_upgrade $connection_upgrade {
        default upgrade;
        ''	close;
    }
}