Question

我想使用app的environment_variables来设置一些属性，但我的实例在安装时仍然失败，阅读文档（http://docs.aws.amazon.com/opsworks/latest/userguide/workingcookbook-events.html）我发现了这个：

"Setup includes Deploy; it runs the Deploy recipes after setup is complete.".

这是我的部署脚本的一部分

if node['deploy']['ws']['application'] && node['deploy']['ws']['environment_variables']['is_root_app'] == 'true'
  web_app node['deploy']['ws']['application'] do
    server_name node['fqdn']
    server_aliases node['deploy']['ws']['domains']
    template 'web_app.conf.erb'
    docroot node.default['apache']['docroot_dir']
    ssl_enabled node['deploy']['ws']['ssl_support']
    enable true
  end
end

这是安装日志

NoMethodError
-------------
undefined method `[]' for nil:NilClass

Cookbook Trace:
---------------
/var/chef/runs/254b8caa-cd70-4525-a2fd-71044afdf62d/local-mode-cache/cache/cookbooks/WebService/recipes/deploy_app.rb:8:in `from_file'

Relevant File Content:
----------------------
/var/chef/runs/254b8caa-cd70-4525-a2fd-71044afdf62d/local-mode-cache/cache/cookbooks/WebService/recipes/deploy_app.rb:

1:  # 
2:  # Cookbook Name:: WebService 
3:  # Recipe:: default 
4:  # 
5:  # Copyright (c) 2016 The Authors, All Rights Reserved. 
6:   
7:   
8>> if node['deploy']['ws']['application'] && node['deploy']['ws']['environment_variables']['is_root_app'] == 'true' 
9:    web_app node['deploy']['ws']['application'] do 
10:      server_name node['fqdn'] 
11:      server_aliases node['deploy']['ws']['domains'] 
12:      template 'web_app.conf.erb' 
13:      docroot node.default['apache']['docroot_dir'] 
14:      ssl_enabled node['deploy']['ws']['ssl_support'] 
15:      enable true 
16:    end 
17:  else

如果我没有部署任何App，那么在安装后运行Deploy配方的目的是什么？如果不是在部署配方???

上可以使用environment_variables

Answer 1

想象一下，您已经完成了所有设置，并且您只需启动一台新机器。它将运行setup，configure然后部署，否则你最终会得到一个尚未准备好生产的实例。

当您尝试访问未设置的属性

时，

部署失败

您可以使用http://ruby-doc.org/core-1.9.3/Hash.html#method-i-has_key-3F来检查

e.g。

if node[:deploy].has_key?("ws")

end

您的env变量相同

AWS Opsworks使用＆＃34; environment_variables＆＃34;在部署食谱

1 个答案: