我试图通过遵循DOCS来学习使用Capistrano 3,并且我已经编写了一个简单的任务来测试我的理解。
任务是在task
的默认lib/capistrano/tasks
目录中创建的:
desc "Check status of web server"
task :nginx_status do
on roles(:web) do |host|
execute 'service nginx status'
end
end
我的config/deploy/staging.rb
文件包含以下内容:
set :stage, :staging
role :web, "192.168.0.11"
role :app, "192.168.0.11"
role :db, "192.168.0.11", primary:true
server '192.168.0.11', user: 'vagrant', roles: %w{web app}
Capfile
# Load DSL and Setup Up Stages
require 'capistrano/setup'
# Includes default deployment tasks
require 'capistrano/deploy'
# Loads custom tasks from `lib/capistrano/tasks' if you have any defined.
Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }
我的deploy.rb
包含应用名称和github的回购网址。
当我运行cap staging nginx_status
时,我收到以下错误:
** Invoke staging (first_time)
** Execute staging
** Invoke load:defaults (first_time)
** Execute load:defaults
cap aborted!
Don't know how to build task 'nginx_status'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/task_manager.rb:62:in `[]'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/application.rb:149:in `invoke_task'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/application.rb:106:in `block (2 levels) in top_level'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/application.rb:106:in `each'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/application.rb:106:in `block in top_level'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/application.rb:115:in `run_with_threads'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/application.rb:100:in `top_level'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/application.rb:78:in `block in run'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/application.rb:176:in `standard_exception_handling'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rake-10.3.1/lib/rake/application.rb:75:in `run'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/application.rb:15:in `run'
/Users/H/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/capistrano-3.2.1/bin/cap:3:in `<top (required)>'
/Users/H/.rbenv/versions/2.1.1/bin/cap:23:in `load'
/Users/H/.rbenv/versions/2.1.1/bin/cap:23:in `<main>'
我还注意到,如果我运行cap -vT
,任务nginx_status
不在列表中(?)
另外,是必须的SSH密钥才能连接到远程服务器?
我发现,如果我将任务放在config/deploy.rb
中,它就可以了。所以我现在的问题是如何从任务目录运行任务?
因此,根据 Capfile ,tasks
目录由以下内容查看:
# Loads custom tasks from `lib/capistrano/tasks' if you have any defined.
Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }
所以我将任务扩展名更改为.rake
并且它有效。但是文档说它应该是.cap
答案 0 :(得分:8)
他们已在3个月前从.cap
切换到.rake
。
完整的想法是让capistrano3
完全rake-compatible
。只需使用.rake
扩展名即可完成任务。