These steps were made with Ubuntu 14.04 e ruby 2.3.1. To enjoy the ease of step-by-step, I suggest not change folders and application name - just change the server ip and git
# Server console
sudo adduser deployer
sudo gpasswd -a deployer sudo
# Server console
sudo nano /etc/ssh/sshd_config
# change to yes:
PasswordAuthentication yes
This point forward use the user "deployer"
# Server console
sudo apt-get update
sudo apt-get install curl
sudo apt-get install git-core
sudo apt-get install imagemagick
sudo apt-get install nodejs
# Mysql
sudo apt-get install libmysqlclient-dev mysql-server
# Postgresql
# sudo apt-get install postgresql postgresql-contrib libpq-dev
sudo apt-get install nginx
sudo apt-get install libgmp-dev (http://www.nokogiri.org/tutorials/installing_nokogiri.html#ubuntu___debian)
Change the ruby version if necessary
# Server console
gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
\curl -sSL https://get.rvm.io | bash
source ~/.rvm/scripts/rvm
rvm requirements
rvm install 2.3.1
rvm use 2.3.1 --default
gem install bundler
# Server console
sudo service nginx start
# Edit nginx default site
sudo nano /etc/nginx/sites-enabled/default
# file: /etc/nginx/sites-enabled/default
upstream unicorn {
server unix:/tmp/unicorn.rails.sock fail_timeout=0;
}
server {
listen 80 default deferred;
# server_name example.com;
root /home/deployer/railsapp/current/public;
location ^~ /assets/ {
gzip_static on;
expires max;
add_header Cache-Control public;
}
location ~ ^/(robots.txt|sitemap.xml.gz)/ {
root /home/deployer/railsapp/current/public;
}
try_files $uri/index.html $uri @unicorn;
location @unicorn {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://unicorn;
}
error_page 500 502 503 504 /500.html;
client_max_body_size 4G;
keepalive_timeout 10;
}
# Gemfile:
gem 'unicorn'
group :development do
gem 'capistrano-rails'
gem 'capistrano-rvm'
gem 'capistrano3-unicorn'
end
# Development console in rails folder
bundle install
cap install
sudo nano config/unicorn/production.rb # Create if not exists
# file: config/unicorn/production.rb
root = "/home/deployer/railsapp/current"
working_directory root
pid "#{root}/tmp/pids/unicorn.pid"
stderr_path "#{root}/log/unicorn.log"
stdout_path "#{root}/log/unicorn.log"
worker_processes 2
timeout 30
preload_app true
listen '/tmp/unicorn.rails.sock', backlog: 64
before_fork do |server, worker|
Signal.trap 'TERM' do
puts 'Unicorn master intercepting TERM and sending myself QUIT instead'
Process.kill 'QUIT', Process.pid
end
defined?(ActiveRecord::Base) and
ActiveRecord::Base.connection.disconnect!
end
after_fork do |server, worker|
Signal.trap 'TERM' do
puts 'Unicorn worker intercepting TERM and doing nothing. Wait for master to send QUIT'
end
defined?(ActiveRecord::Base) and
ActiveRecord::Base.establish_connection
end
# Force the bundler gemfile environment variable to
# reference the capistrano "current" symlink
before_exec do |_|
ENV['BUNDLE_GEMFILE'] = File.join(root, 'Gemfile')
end
Edit Capfile and replace all the content
# file: Capfile
require 'capistrano/setup'
require 'capistrano/deploy'
require 'capistrano/rvm'
require 'capistrano/bundler'
require 'capistrano/rails/assets'
require 'capistrano/rails/migrations'
require 'capistrano3/unicorn'
# Load custom tasks from `lib/capistrano/tasks' if you have any defined
Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }
Edit config/deploy.rb and changes git@git.teste.git with your repo
# file: config/deploy.rb
lock '3.4.0'
set :application, 'railsapp'
set :repo_url, 'git@git.teste.git'
ask :branch, proc { `git rev-parse --abbrev-ref HEAD`.chomp }.call
set :use_sudo, false
set :bundle_binstubs, nil
set :linked_dirs, fetch(:linked_dirs, []).push('log', 'tmp/pids', 'tmp/cache', 'tmp/sockets', 'vendor/bundle', 'public/system')
after 'deploy:publishing', 'deploy:restart'
namespace :deploy do
task :restart do
invoke 'unicorn:legacy_restart'
on roles(:app) do
within current_path do
with rails_env: fetch(:rails_env, 'production') do
execute :bundle, 'exec', :rake, 'tmp:cache:clear'
end
end
end
end
end
Edit config/deploy/production.rb and change the server ip 122.125.125.123
# file: config/deploy/production.rb
set :port, 22
set :user, 'deployer'
set :deploy_via, :remote_cache
set :use_sudo, false
server '122.125.125.123',
roles: [:web, :app, :db],
port: fetch(:port),
user: fetch(:user),
primary: true
set :deploy_to, "/home/deployer/railsapp"
set :ssh_options, {
forward_agent: true,
auth_methods: %w(publickey),
user: 'deployer',
}
#or ask for password
#set :ssh_options, {
# config: false
#}
set :rails_env, :production
set :conditionally_migrate, true
Only if you don't want be asked for pass
$ cat ~/.ssh/id_rsa.pub | ssh -p 22 username@123.123.123.123 'cat >> ~/.ssh/authorized_keys'
Edit or create file config/unicorn/unicorn_service.sh
#!/bin/sh
### BEGIN INIT INFO
# Provides: unicorn
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Manage unicorn server
# Description: Start, stop, restart unicorn server for a specific application.
### END INIT INFO
set -e
# Feel free to change any of the following variables for your app:
TIMEOUT=${TIMEOUT-60}
APP_ROOT=/home/deployer/railsapp/current
PID=$APP_ROOT/tmp/pids/unicorn.pid
CMD="cd $APP_ROOT; bundle exec unicorn -D -c $APP_ROOT/config/unicorn/production.rb -E production"
AS_USER=deployer
set -u
OLD_PIN="$PID.oldbin"
sig () {
test -s "$PID" && kill -$1 `cat $PID`
}
oldsig () {
test -s $OLD_PIN && kill -$1 `cat $OLD_PIN`
}
run () {
if [ "$(id -un)" = "$AS_USER" ]; then
eval $1
else
su -c "$1" - $AS_USER
fi
}
case "$1" in
start)
sig 0 && echo >&2 "Already running" && exit 0
run "$CMD"
;;
stop)
sig QUIT && exit 0
echo >&2 "Not running"
;;
force-stop)
sig TERM && exit 0
echo >&2 "Not running"
;;
restart|reload)
sig HUP && echo reloaded OK && exit 0
echo >&2 "Couldn't reload, starting '$CMD' instead"
run "$CMD"
;;
upgrade)
if sig USR2 && sleep 2 && sig 0 && oldsig QUIT
then
n=$TIMEOUT
while test -s $OLD_PIN && test $n -ge 0
do
printf '.' && sleep 1 && n=$(( $n - 1 ))
done
echo
if test $n -lt 0 && test -s $OLD_PIN
then
echo >&2 "$OLD_PIN still exists after $TIMEOUT seconds"
exit 1
fi
exit 0
fi
echo >&2 "Couldn't upgrade, starting '$CMD' instead"
run "$CMD"
;;
reopen-logs)
sig USR1
;;
*)
echo >&2 "Usage: $0 <start|stop|restart|upgrade|force-stop|reopen-logs>"
exit 1
;;
esac
# Server console
sudo nano /etc/init/unicorn.conf
# Set init ubuntu
description "Start Unicorn"
start on startup
task
exec sh /home/deployer/railsapp/current/config/unicorn/unicorn_service.sh start
Commit the repo changes, restart the server and be happy with cap production deploy
PS: remember to set production secrets in config/initializers/devise.rb and config/secrets.yml