因为puma minissl有bug，总是占用100%cpu， 换成了nginx 转发到puma

puma是rails集成的，直接运行

yum install nginx

然后配置nginx

server {
listen 80;
server_name ** ***;
return 301 https://$host$request_uri;
}

server {
listen 443;
server_name ****; # change to match your URL
root /**/**/**/public; # I assume your app is located at that location

ssl on;
ssl_certificate /path_for/fullchain.pem;
ssl_certificate_key /path_for/privkey.pem;

ssl_session_cache shared:SSL:10m;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers “ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA:DES-CBC3-SHA:HIGH:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4”;
ssl_prefer_server_ciphers on;
ssl_session_timeout 10m;
ssl_stapling on;
ssl_stapling_verify on;

resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 10s;
add_header Strict-Transport-Security “max-age=31536000; includeSubdomains;”;

location / {
proxy_pass http://unix:/var/run/sockets/production.sock; # match the name of upstream directive which is defined above
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

location ~* ^/assets/ {
# Per RFC2616 – 1 year maximum expiry
expires 1y;
add_header Cache-Control public;

# Some browsers still send conditional-GET requests if there’s a
# Last-Modified header or an ETag header even if they haven’t
# reached the expiry date sent in the Expires header.
add_header Last-Modified “”;
add_header ETag “”;
break;
}
}