Convient bash functions for managing nginx and Unicorn

gistfile1.sh

# Kill and restart nginx
function restart_nginx(){
  pids=$(pidof nginx)
  if [[ -n $pids ]]; 
  then
    sudo kill -9 $pids
    sudo service nginx restart
  fi  
}

# Kill unicorn
function kill_unicorn(){
  ps aux | grep 'unicorn' | awk '{print $2}' | xargs sudo kill -9
}

# test unicorn process
function test_unicorn(){
  # If config/unicorn.rb doesn't exist, don't bother running anything.
  unicornFile=config/unicorn.rb
  if [ ! -e $unicornFile ];
  then
    echo "Unicorn file not found"
  else
    echo "Starting unicorn..."
    bundle exec unicorn_rails -c $unicornFile -E production
  fi
}

# run unicorn process as a daemon
function start_unicorn(){
  # If config/unicorn.rb doesn't exist, don't bother running anything.
  unicornFile=config/unicorn.rb
  if [ ! -e $unicornFile ];
  then
    echo "Unicorn file not found"
  else
    bundle exec unicorn_rails -c $unicornFile -E production -D
  fi
}

# Create a symbolic link to a config file in the sites-enabled dir
# arg1: basename of config file in sites-available dir
# Ex: 'nginx_enable railsapp1.com'
function nginx_enable(){
  confFile=$1
  fullFilePath=/etc/nginx/sites-available/$confFile
  symLinkPath=/etc/nginx/sites-enabled/$confFile

  # First test to see that the file exists
  if [ ! -e $fullFilePath ]
  then
    printf "%s not found..." "$fullFilePath"
    printf "Aborted!\n"
  else
    # If symlink already exists, delete it so the new configuration
    # will take effect.
    if [ -e $symLinkPath ]
    then
      printf "Old symbolic link removed...\n"
      sudo rm $symLinkPath
    fi  

    sudo ln -s $fullFilePath $symLinkPath

    # Confirm the symlink was created
    if [ -e $symLinkPath ]
    then
      printf "$confFile enabled.\n"
    fi  
  fi  
}

# Destroy a symbolic link in the sites-enabled directory.
# arg1: basename of symbolic link to
# Ex: 'nginx_disable railsapp1.com'
function nginx_disable(){
  symLink=$1
  symLinkPath=/etc/nginx/sites-enabled/$symLink

  # First test to see that the link exists
  if [ ! -e $symLinkPath ]
  then
    printf "$symLink is not currently enabled. Exiting.\n"
  else
    # If the link does exist, delete it.
    sudo rm $symLinkPath

    # Confirm the symlink was destroyed
    if [ ! -e $symLinkPath ]
    then
      printf "$symLink disabled.\n"
    fi
  fi
}

You may add here your

server {

...

}

statements for each of your virtual hosts to this file

upstream raquelhernandez {
server unix:/home/raquel/raquelhernandez/current/tmp/sockets/unicorn.sock fail_timeout=0;
}
server {
listen 80;
server_name raquelhernandez.net;
root /home/raquel/raquelhernandez/current/public;
location / {
try_files $uri @RaquelHernandez;
}

location ~ (.php|.aspx|.asp|myadmin|php-cgi|php5|cgi-bin) {
return 404;
}

location @RaquelHernandez {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://raquelhernandez;
}
}

You should look at the following URL's in order to grasp a solid understanding

of Nginx configuration files in order to fully unleash the power of Nginx.

http://wiki.nginx.org/Pitfalls

http://wiki.nginx.org/QuickStart

http://wiki.nginx.org/Configuration

Generally, you will want to move this file somewhere, and start with a clean

file but keep this around for reference. Or just disable in sites-enabled.

Please see /usr/share/doc/nginx-doc/examples/ for more detailed examples.

server {
listen 80 default_server;
listen [::]:80 default_server ipv6only=on;

root /usr/share/nginx/html;
index index.html index.htm;

# Make site accessible from http://localhost/
server_name localhost;

location / {
    # First attempt to serve request as file, then
    # as directory, then fall back to displaying a 404.
    try_files $uri $uri/ =404;
    # Uncomment to enable naxsi on this location
    # include /etc/nginx/naxsi.rules
}

# Only for nginx-naxsi used with nginx-naxsi-ui : process denied requests
#location /RequestDenied {
#   proxy_pass http://127.0.0.1:8080;    
#}

#error_page 404 /404.html;

# redirect server error pages to the static page /50x.html
#
#error_page 500 502 503 504 /50x.html;
#location = /50x.html {
#   root /usr/share/nginx/html;
#}

# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
#   fastcgi_split_path_info ^(.+\.php)(/.+)$;
#   # NOTE: You should have "cgi.fix_pathinfo = 0;" in php.ini
#
#   # With php5-cgi alone:
#   fastcgi_pass 127.0.0.1:9000;
#   # With php5-fpm:
#   fastcgi_pass unix:/var/run/php5-fpm.sock;
#   fastcgi_index index.php;
#   include fastcgi_params;
#}

# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
#   deny all;
#}

}

another virtual host using mix of IP-, name-, and port-based configuration

server {

listen 8000;

listen somename:8080;

server_name somename alias another.alias;

root html;

index index.html index.htm;

location / {

try_files $uri $uri/ =404;

}

}

HTTPS server

server {

listen 443;

server_name localhost;

root html;

index index.html index.htm;

ssl on;

ssl_certificate cert.pem;

ssl_certificate_key cert.key;

ssl_session_timeout 5m;

ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2;

ssl_ciphers "HIGH:!aNULL:!MD5 or HIGH:!aNULL:!MD5:!3DES";

ssl_prefer_server_ciphers on;

location / {

try_files $uri $uri/ =404;

}

}