First you will have to install ubuntu
$ sudo apt install nginxthis will install the software and it will generate default configurations in /etc/nginx/site-available folder. You can see those files there. You can modify the default.conf file. Default content is
# Default server configuration
#
server {
listen 80 default_server;
listen [::]:80 default_server;
# SSL configuration
#
# listen 443 ssl default_server;
# listen [::]:443 ssl default_server;
#
# Note: You should disable gzip for SSL traffic.
# See: https://bugs.debian.org/773332
#
# Read up on ssl_ciphers to ensure a secure configuration.
# See: https://bugs.debian.org/765782
#
# Self signed certs generated by the ssl-cert package
# Don't use them in a production server!
#
# include snippets/snakeoil.conf;
root /var/www/html;
# Add index.php to the list if you are using PHP
index index.html index.htm index.nginx-debian.html;
server_name _;
location / {
# First attempt to serve request as file, then
# as directory, then fall back to displaying a 404.
try_files $uri $uri/ =404;
}
# pass PHP scripts to FastCGI server
#
#location ~ \.php$ {
# include snippets/fastcgi-php.conf;
#
# # With php-fpm (or other unix sockets):
# fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
# # With php-cgi (or other tcp sockets):
# fastcgi_pass 127.0.0.1:9000;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# Virtual Host configuration for example.com
#
# You can move that to a different file under sites-available/ and symlink that
# to sites-enabled/ to enable it.
#
#server {
# listen 80;
# listen [::]:80;
#
# server_name example.com;
#
# root /var/www/example.com;
# index index.html;
#
# location / {
# try_files $uri $uri/ =404;
# }
#}
To configure reverse proxy
server {
listen 80;
listen [::]:80;
server_name example.com;
location / {
proxy_pass http://localhost:3000/;
}
}here, your application server is running at port 3000 in localhost.
Problems I faced
I was trying to serve the Rails app from folder other than /var/www like /root/projects/production/myapp dir, but the nginx could not render the app. It return the permission denined issue. I changed the owner of all the folders and files and also I changed the file permission to 777. But I failed.
So I moved the project to /var/www
How I Hosted Rails app
I moved the rails app to /var/www and set the permission to chmod -R 755 /myapp
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