老项目换unicorn的大致步骤：
(1)修改config/application.rb
删除
29 # assign log4r's logger as rails' logger.
30 log4r_config= YAML.load_file(File.join(File.dirname(__FILE__),"log4r.yml"))
31 YamlConfigurator.decode_yaml( log4r_config['log4r_config'] )
32 config.logger = Log4r::Logger[Rails.env]
新增memcached的配置
29 config.cache_store = :dalli_store, *Settings.memcached.servers,
30 { :namespace => Settings.memcached.namespace, :compress => true }
(2)新建config/deploy/文件夹，
新增production.rb
staging.rb
(3) 新增config/environments/
development.rb
production.rb
staging.rb
test.rb
(4) 修改Gemfile，删除thin，新增unicorn
37 gem 'dalli'
38 gem 'unicorn'
39
40 group :test, :development do
41 gem "rspec-rails", ">= 2.5.0"
42 gem 'factory_girl', '2.6.4'
43 gem 'factory_girl_rails', '1.7.0'
44 gem 'faker', '1.1.2'
45 gem 'forgery', '0.5.0'
46 gem 'magic_encoding', '0.0.2'
47 gem 'email_spec', '1.4.0'
48
49 gem 'net-ssh', '~> 2.0'
50 gem 'capistrano', '~> 2.15.7'
51 gem 'capistrano-rbenv', '1.0.5'
52 gem 'rb-readline','0.4.2'
53 end
(5)修改配置config/settings.yml的配置
181 memcached:
182 namespace: xxx-xxxxx-cms-staging
183 servers:
184 - 127.0.0.1:11215
(6)配置config/deploy.rb文件
(7)bundle exec cap deploy:setup
bundle exec cap deploy:cold
部署可能出现的问题
(1)Could not parse object（由于写错了config/deploy.rb 里的set :repository导致的）
(2)不能自动识别config/application.rb的配置uninitialized constant Cms::Application::Settings
修改Gemfile， gem "rails_config", '0.3.4'
（3）/home/wz/.rbenv/versions/1.9.3-p545/lib/ruby/gems/1.9.1/gems
/activesupport-3.0.8/lib/active_support/cache.rb:65:in `rescue in
lookup_store': Could not find cache store adapter for dalli_store
(cannot load such file -- active_support/cache/dalli_store)
(RuntimeError)
需要加
gem 'dalli'
最后一步，把项目文件夹目录下的nginx配置做一个软链接到
$ nginx -t
nginx: the configuration file /opt/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /opt/nginx/conf/nginx.conf test is successful
$ ln -s /opt/app/ruby/tudou-tv-cms-unicorn/current/config/nginx.staging.conf /opt/nginx/conf/tudou_tv_cms.conf
12:33 [root@a02]$ nginx -t
nginx: the configuration file /opt/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /opt/nginx/conf/nginx.conf test is successful
tty:[0] jobs:[0] cwd:[~]
12:33 [root@a02]$ nginx -s reload
tty:[0] jobs:[0] cwd:[~]
12:33 [root@a02]$ netstat -tlnp | grep 52
tcp 0 0 0.0.0.0:5200 0.0.0.0:* LISTEN 20263/nginx
tcp 0 0 10.100.14.83:5308 0.0.0.0:* LISTEN 1526/cfservd
tcp 0 0 0.0.0.0:5218 0.0.0.0:* LISTEN 1391/thin server (0
12:33 [root@a02.test.stat.3g.vm.m6.youku]$ vim /opt/nginx/conf/nginx.conf
这里把新的链接include进来
include tudou_tv_cms.conf;
tty:[0] jobs:[0] cwd:[~]
12:34 [root@a02]$ nginx -t
nginx: the configuration file /opt/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /opt/nginx/conf/nginx.conf test is successful
tty:[0] jobs:[0] cwd:[~]
12:34 [root@a02]$ nginx -s reload
tty:[0] jobs:[0] cwd:[~]
12:34 [root@a02]$ netstat -tlnp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:6500 0.0.0.0:* LISTEN 2347/thin server (0
tcp 0 0 0.0.0.0:6565 0.0.0.0:* LISTEN 20307/nginx
tcp 0 0 0.0.0.0:5030 0.0.0.0:* LISTEN 20307/nginx
tcp 0 0 0.0.0.0:22022 0.0.0.0:* LISTEN 26901/sshd
tcp 0 0 127.0.0.1:199 0.0.0.0:* LISTEN 26927/snmpd
tcp 0 0 127.0.0.1:6600 0.0.0.0:* LISTEN 11834/uwsgi