厨师 - 当模板资源被修改时无法配置服务资源重新加载

Question

我完全没有获得安装 init.d文件没有安装服务的工作流程。以下是我的主管安装 的秘诀。还在下面的boostrap错误。我有init.d 和配置文件作为模板。那么，我如何调整逻辑来让 厨师工作？

ec2-175-41-185-174.ap-southeast-1.compute.amazonaws.com [Thu, 17 May 
2012 22:18:02 +0000] ERROR: Running exception handlers 
ec2-175-41-185-174.ap-southeast-1.compute.amazonaws.com [Thu, 17 May 
2012 22:18:02 +0000] FATAL: Saving node information to 
/var/chef/cache/failed-run-data.json 
ec2-175-41-185-174.ap-southeast-1.compute.amazonaws.com [Thu, 17 May 
2012 22:18:02 +0000] ERROR: Exception handlers complete 
ec2-175-41-185-174.ap-southeast-1.compute.amazonaws.com [Thu, 17 May 
2012 22:18:02 +0000] FATAL: Stacktrace dumped to 
/var/chef/cache/chef-stacktrace.out 
ec2-175-41-185-174.ap-southeast-1.compute.amazonaws.com [Thu, 17 May 
2012 22:18:02 +0000] FATAL: Errno::ENOENT: service[supervisord] 
(supervisor::default line 23) had an error: Errno::ENOENT: No such 
file or directory - /etc/init.d/supervisord restart 



easy_install_package "supervisor" do 
action :install 
end 

template "/etc/supervisord.conf" do 
path "/etc/supervisord.conf" 
source "supervisord.conf.erb" 
owner "root" 
group "root" 
mode "0600" 
end 

template "/etc/init.d/supervisord" do 
path "/etc/init.d/supervisord" 
source "supervisord.erb" 
owner "root" 
group "root" 
mode "0755" 
#notifies :start, "service[supervisord]", :immediately 
end 

service "supervisord" do 
supports :restart => true, :start => true, :stop => true, :reload => true 
action [ :enable] 
subscribes :start, resources(:template => 
"/etc/init.d/supervisord"), :immediately 
end 

Answer 1

我相信你的问题在这里是由于您使用的：在您的立即通知和订阅属性。

当您使用立即通知立即运行，这在某些情况下是有意义的，但在这种情况下，由于Chef如何执行，您通知或您要订阅的资源可能尚不存在。

默认情况下，notifications are是：延迟这意味着它们排队等待触发并在Chef运行结束时执行。然后他们可以交付到您想要通知的services和其他资源。

对于你上面的例子，我会修改如下事情：

template "/etc/supervisord.conf" do 
path "/etc/supervisord.conf" 
source "supervisord.conf.erb" 
owner "root" 
group "root" 
mode "0600" 
notifies :reload, "service[supervisord]", :delayed 
end 

template "/etc/init.d/supervisord" do 
path "/etc/init.d/supervisord" 
source "supervisord.erb" 
owner "root" 
group "root" 
mode "0755" 
notifies :reload, "service[supervisord]", :delayed 
end 

service "supervisord" do 
supports :restart => true, :start => true, :stop => true, :reload => true 
action :enable 
end 

上面的代码执行以下操作：

• 创建supervisord配置文件，然后通知supervisord在年底重装厨师跑
• 创建supervisord init.d脚本，然后通知supervisord在厨师跑完后重新加载
• Dec拉雷斯的supervisord服务资源，支持重新启动，启动，停止，并重新加载，并使其后的任何那些已经运行

的见The Chef Run或上了年纪，但在某些方面更清晰Anatomy of a Chef Run的更多信息，如何厨师在运行列表中执行运行列表和食谱。