Capistrano + Nginx + Unicorn + Sinatra on Ubuntu
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require 'bundler/capistrano' |
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set :application, "net" |
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set :repository, "git@githost.com:net.git" |
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set :scm, :git |
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set :default_environment, { |
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'PATH' => "$HOME/.rbenv/shims:$HOME/.rbenv/bin:$PATH" |
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} |
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set :use_sudo, false |
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default_run_options[:pty] = true |
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set :user, "deployer" |
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set :group, user |
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set :runner, user |
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set :host, "#{user}@host.com" |
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role :web, host |
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role :app, host |
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set :rack_env, :production |
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set :deploy_to, "/srv/#{application}" |
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set :unicorn_conf, "#{current_path}/config/unicorn.rb" |
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set :unicorn_pid, "#{shared_path}/pids/unicorn.pid" |
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set :public_children, ["css","img","js"] |
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namespace :deploy do |
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task :restart do |
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run "if [ -f #{unicorn_pid} ]; then kill -USR2 `cat #{unicorn_pid}`; else cd #{current_path} && bundle exec unicorn -c #{unicorn_conf} -E #{rack_env} -D; fi" |
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end |
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task :start do |
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run "cd #{current_path} && bundle exec unicorn -c #{unicorn_conf} -E #{rack_env} -D" |
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end |
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task :stop do |
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run "if [ -f #{unicorn_pid} ]; then kill -QUIT `cat #{unicorn_pid}`; fi" |
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end |
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end |
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upstream net_unicorn { |
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server unix:/srv/net/shared/unicorn.sock fail_timeout=0; |
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} |
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server { |
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server_name example.net; |
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rewrite ^(.*) http://www.example.net$1 permanent; |
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} |
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server { |
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server_name www.example.net; |
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root /srv/net/current/public; |
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location / { |
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try_files $uri @net; |
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} |
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location @net { |
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; |
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proxy_set_header Host $http_host; |
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proxy_redirect off; |
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proxy_pass http://net_unicorn; |
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} |
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} |
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# define paths and filenames |
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deploy_to = "/srv/net" |
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rack_root = "#{deploy_to}/current" |
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pid_file = "#{deploy_to}/shared/pids/unicorn.pid" |
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socket_file= "#{deploy_to}/shared/unicorn.sock" |
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log_file = "#{rack_root}/log/unicorn.log" |
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err_log = "#{rack_root}/log/unicorn_error.log" |
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old_pid = pid_file + '.oldbin' |
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timeout 30 |
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worker_processes 2 |
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listen socket_file, :backlog => 1024 |
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pid pid_file |
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stderr_path err_log |
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stdout_path log_file |
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before_fork do |server, worker| |
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# zero downtime deploy magic: |
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# if unicorn is already running, ask it to start a new process and quit. |
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if File.exists?(old_pid) && server.pid != old_pid |
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begin |
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Process.kill("QUIT", File.read(old_pid).to_i) |
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rescue Errno::ENOENT, Errno::ESRCH |
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# already done |
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end |
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end |
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end |
