RVM+Mina+Unicorn+Nginx deployment configure.

a_rvm_mina_unicorn_nginx_configure

Files list below.

bootup_unicorn

#!/usr/bin/env bash

if [[ -s "/home/user/.rvm/environments/ruby-2.0.0-p195@xxx_com" ]]
then
  source "/home/user/.rvm/environments/ruby-2.0.0-p195@xxx_com"
  exec unicorn "$@"
else
  echo "ERROR: Missing RVM environment file: '/home/user/.rvm/environments/ruby-2.0.0-p195@xxx_com'" >&2
  exit 1
fi

deploy.rb

require 'mina/bundler'
require 'mina/rails'
require 'mina/git'
require 'mina/rvm'

set :domain, 'xxx.com'
set :deploy_to, '/home/user/apps/xxx.com'
set :repository, 'ssh://git@bitbucket.org/user/xxx.com.git'
set :branch, 'master'
set :term_mode, :system

set :shared_paths, ['config/mongoid.yml', 'config/application.yml', 'log']

set :app_path, lambda { "#{deploy_to}/#{current_path}" }

task :environment do
  invoke :'rvm:use[ruby-2.0.0-p195@xxx_com]'
end

task :setup => :environment do
  queue! %[mkdir -p "#{deploy_to}/shared/log"]
  queue! %[chmod g+rx,u+rwx "#{deploy_to}/shared/log"]

  queue! %[mkdir -p "#{deploy_to}/shared/config"]
  queue! %[chmod g+rx,u+rwx "#{deploy_to}/shared/config"]

  queue! %[mkdir -p "#{deploy_to}/shared/tmp/pids"]
  queue! %[chmod g+rx,u+rwx "#{deploy_to}/shared/tmp"]
  queue! %[chmod g+rx,u+rwx "#{deploy_to}/shared/tmp/pids"]

  queue! %[mkdir -p "#{deploy_to}/shared/tmp/sockets"]
  queue! %[chmod g+rx,u+rwx "#{deploy_to}/shared/tmp/sockets"]

  queue! %[touch "#{deploy_to}/shared/config/mongoid.yml"]
  queue! %[touch "#{deploy_to}/shared/config/application.yml"]
end

desc "Deploys the current version to the server."
task :deploy => :environment do
  deploy do
    invoke :'git:clone'
    invoke :'deploy:link_shared_paths'
    invoke :'bundle:install'
    invoke :'rails:assets_precompile'

    to :launch do
      invoke 'unicorn:restart'
    end
  end
end

namespace :unicorn do
  desc "Start unicorn"
  task :start => :environment do
    queue 'echo "-----> Start Unicorn"'
    queue '/etc/init.d/xxx_com_unicorn start'
  end

  desc "Stop unicorn"
  task :stop do
    queue 'echo "-----> Stop Unicorn"'
    queue '/etc/init.d/xxx_com_unicorn stop'
  end

  desc "Restart unicorn using 'upgrade'"
  task :restart => :environment do
    queue 'echo "-----> Restart Unicorn"'
    queue '/etc/init.d/xxx_com_unicorn restart'
  end
end

nginx

#! /bin/sh
 
### BEGIN INIT INFO
# Provides:          nginx
# Required-Start:    $all
# Required-Stop:     $all
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts the nginx web server
# Description:       starts nginx using start-stop-daemon
### END INIT INFO
 
PATH=/opt/bin:/opt/sbin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/local/nginx/sbin/nginx
NAME=nginx
DESC=nginx
 
test -x $DAEMON || exit 0
 
# Include nginx defaults if available
if [ -f /etc/default/nginx ] ; then
        . /etc/default/nginx
fi
 
set -e
 
case "$1" in
  start)
        echo -n "Starting $DESC: "
        start-stop-daemon --start --quiet --pidfile /var/run/nginx.pid --exec $DAEMON -- $DAEMON_OPTS
        echo "$NAME."
        ;;
  stop)
        echo -n "Stopping $DESC: "
        start-stop-daemon --stop --quiet --pidfile /var/run/nginx.pid --exec $DAEMON
        echo "$NAME."
        ;;
  restart|force-reload)
        echo -n "Restarting $DESC: "
        start-stop-daemon --stop --quiet --pidfile /var/run/nginx.pid --exec $DAEMON
        sleep 1
        start-stop-daemon --start --quiet --pidfile /var/run/nginx.pid --exec $DAEMON -- $DAEMON_OPTS
        echo "$NAME."
        ;;
  reload)
      echo -n "Reloading $DESC configuration: "
      start-stop-daemon --stop --signal HUP --quiet --pidfile /var/run/nginx.pid --exec $DAEMON
      echo "$NAME."
      ;;
  *)
        N=/etc/init.d/$NAME
        echo "Usage: $N {start|stop|restart|force-reload}" >&2
        exit 1
        ;;
esac
 
exit 0

nginx.conf

worker_processes  1;

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

events {
    worker_connections  1024;
    accept_mutex off;
    use epoll;
}


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

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

    sendfile        on;
    tcp_nopush      on;
    tcp_nodelay     off;

    keepalive_timeout  45;

    gzip  on;
    gzip_http_version 1.0;
    gzip_proxied any;
    gzip_min_length 500;
    gzip_disable "MSIE [1-6]\.";
    gzip_types text/plain text/xml text/css
               text/comma-separated-values
               text/javascript application/x-javascript
               application/atom+xml;

    server_names_hash_bucket_size 128;

    client_max_body_size 4G;
    client_body_buffer_size 128k;

    include /usr/local/nginx/conf/conf.d/*.conf;
    include /usr/local/nginx/conf/sites-enabled/*;
}

unicorn.rb

worker_processes 1

working_directory "/home/user/apps/xxx.com/current"

listen "/home/user/apps/xxx/shared/tmp/sockets/unicorn.sock", :backlog => 128

timeout 45

pid "/home/user/apps/xxx/shared/tmp/pids/unicorn.pid"

stderr_path "/home/user/apps/xxx/shared/log/unicorn.stderr.log"
stdout_path "/home/user/apps/xxx/shared/log/unicorn.stdout.log"

preload_app true
GC.respond_to?(:copy_on_write_friendly=) and
  GC.copy_on_write_friendly = true

check_client_connection false

before_fork do |server, worker|
  old_pid = "#{server.config[:pid]}.oldbin"
  if old_pid != server.pid
    begin
      sig = (worker.nr + 1) >= server.worker_processes ? :QUIT : :TTOU
      Process.kill(sig, File.read(old_pid).to_i)
    rescue Errno::ENOENT, Errno::ESRCH
      puts "Send 'QUIT' signal to unicorn error!"
    end
  end
end

xxx.com.conf

upstream xxx_backend {
  server unix:///home/user/apps/xxx.com/shared/tmp/sockets/unicorn.sock;
}

server {
  listen 80;
  server_name xxx.com;

  root /home/user/apps/xxx.com/current/public;

  access_log /var/log/nginx/xxx.com.access.log;
  error_log /var/log/nginx/xxx.com.error.log info;

  if (-f $document_root/maintenance.html) {
    rewrite  ^(.*)$  /maintenance.html last;
    break;
  }

  location ~ ^(/assets|/favicon.ico)/  {
    root /home/user/apps/xxx.com/current/public;
    access_log        off;
    expires max;
    add_header  Cache-Control public;
  }

  location / {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_set_header X-Forwarded-Server $host;
    proxy_set_header X-Real-IP        $remote_addr;
    proxy_redirect off;
    proxy_buffering off;

    if (-f $request_filename) {
      break;
    }

    if (-f $request_filename/index.html) {
      rewrite (.*) $1/index.html break;
    }

    if (-f $request_filename.html) {
      rewrite (.*) $1.html break;
    }

    if (!-f $request_filename) {
      proxy_pass http://xxx_backend;
      break;
    }
  }

  # Error pages
  # error_page 500 502 503 504 /500.html;
  location = /500.html {
    root /home/user/apps/xxx.com/current/public;
  }
}

xxx_com_unicorn

#!/bin/bash

### BEGIN INIT INFO
# Provides: xxx_com_unicorn
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start daemon at boot time
# Description: Enable service provided by daemon.
### END INIT INFO

UNICORN=/home/user/.rvm/bin/bootup_unicorn
KILL=/bin/kill
APP_ROOT=/home/user/apps/xxx.com/current
PID=/home/user/apps/xxx.com/shared/tmp/pids/unicorn.pid
CONFIG=$APP_ROOT/config/unicorn.rb
RUNUSER=user

sig () {
  test -s "$PID" && kill -$1 `cat $PID`
}

case "$1" in
  start)
    echo -ne "Starting unicorn…"
    cd $APP_ROOT
    su -c "${UNICORN} -E production -c ${CONFIG} -D" ${RUNUSER}
    if [ "$?" != 0 ]; then
      echo -ne "[FAILED]\n"
    else
      echo -ne "[OK]\n"
    fi
    ;;
  stop)
    sig QUIT && exit 0
    echo >&2 "Not running"
    ;;
  restart)
    sig USR2 && exit 0
    echo >&2 "Not running"
    ;;
  status)
    ;;
  *)
    echo "Usage: $0 {start|stop|restart|status}"
    ;;
esac