How to deploy puma with nginx

Question

How to deploy puma with nginx or apache, is this possible or it's not necessary to use a web server like nginx or apache. What is the best way to deploy an app with puma?

Answer 1

The key is in the nginx conf for the site.

server {
  listen 80;
  server_name mysite.com;

  location / {
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://localhost:4000;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
  }

}

As you can see proxy_pass http://localhost:4000; line tells nginx to listen to localhost at port 4000 you can change that to your needs.

This is a small change to work with ssl letsencrypt, of course you should configure ssl with letsencrypt.

server {
  listen 80;
  server_name example.com;

  location / {
    return 301 https://example.com$request_uri;
  }
}

server {
  listen 443 ssl http2;
  server_name example.com;
  #listen [::]:443 ssl http2 ipv6only=on;
ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; # managed by Certbot
  ssl_trusted_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
  include /etc/nginx/snippets/ssl.conf;

  location / {
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://localhost:4000;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
  }

}