我使用在 DigitalOcean 液滴上运行的 Capistrano 2.15 和 Nginx。
有时，特别是当我安装新的 gem 或运行迁移时，我需要硬重置我的 droplet 以使我的更改生效。
这不适用，如果我只是在某处更改代码，运行时
cap deploy:restart
很好。
另外，当我登录到我的机器并运行时
service nginx restart
它无助于捕捉新的迁移。
部署.rb
require "rvm/capistrano"
set :rvm_ruby_string, 'default'
set :rvm_type, :user
require "bundler/capistrano"
server "xx.xx.xx.xx", :web, :app, :db, primary: true
set :application, "xxx"
set :user, "deployer"
set :deploy_to, "/home/#{user}/apps/#{application}"
set :deploy_via, :remote_cache
set :use_sudo, false
set :scm, "git"
set :repository, "git@bitbucket.org:xxx/#{application}.git"
set :branch, "master"
default_run_options[:pty] = true
ssh_options[:forward_agent] = true
after "deploy", "deploy:cleanup" # keep only the last 5 releases
namespace :deploy do
%w[start stop restart].each do |command|
desc "#{command} unicorn server"
task command, roles: :app, except: {no_release: true} do
run "/etc/init.d/unicorn_#{application} #{command}"
end
end
task :setup_config, roles: :app do
sudo "ln -nfs #{current_path}/config/nginx.conf /etc/nginx/sites-enabled/#{application}"
sudo "ln -nfs #{current_path}/config/unicorn_init.sh /etc/init.d/unicorn_#{application}"
run "mkdir -p #{shared_path}/config"
put File.read("config/database.example.yml"), "#{shared_path}/config/database.yml"
puts "Now edit the config files in #{shared_path}."
end
after "deploy:setup", "deploy:setup_config"
task :symlink_config, roles: :app do
run "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml"
end
desc "reload the database with seed data"
task :seed do
run "cd #{current_path}; bundle exec rake db:seed RAILS_ENV=#{rails_env}"
end
after "deploy:finalize_update", "deploy:symlink_config"
desc "Make sure local git is in sync with remote."
task :check_revision, roles: :web do
unless `git rev-parse HEAD` == `git rev-parse origin/master`
puts "WARNING: HEAD is not the same as origin/master"
puts "Run `git push` to sync changes."
exit
end
end
before "deploy", "deploy:check_revision"
desc "tail production log files"
task :tail_logs, :roles => :app do
trap("INT") { puts 'Interupted'; exit 0; }
run "tail -f #{shared_path}/log/unicorn.log" do |channel, stream, data|
puts # for an extra line break before the host name
puts "#{channel[:host]}: #{data}"
break if stream == :err
end
end
end
namespace :assets do
task :symlink, roles: :web do
run ("rm -rf #{latest_release}/public/assets &&
mkdir -p #{latest_release}/public &&
mkdir -p #{shared_path}/assets &&
ln -s #{shared_path}/assets #{latest_release}/public/assets")
end
end
namespace :uploads do
desc <<-EOD
Creates the upload folders unless they exist
and sets the proper upload permissions.
EOD
task :setup, :except => { :no_release => true } do
dirs = [File.join(shared_path,'uploads' )]
run "#{try_sudo} mkdir -p #{dirs.join(' ')} && #{try_sudo} chmod g+w #{dirs.join(' ')}"
end
desc <<-EOD
[internal] Creates the symlink to uploads shared folder
for the most recently deployed version.
EOD
task :symlink, :except => { :no_release => true } do
run "rm -rf #{release_path}/public/uploads"
run "ln -nfs #{shared_path}/uploads #{release_path}/public/uploads"
end
desc <<-EOD
[internal] Computes uploads directory paths
and registers them in Capistrano environment.
EOD
task :register_dirs do
set :uploads_dirs, %w(public/uploads)
set :shared_children, fetch(:shared_children) + fetch(:uploads_dirs)
end
after "deploy:finalize_update", "uploads:symlink"
on :start, "uploads:register_dirs"
end
这是 unicorn_init：