Chef LWRP-Defs /资源执行顺序 [英] Chef LWRP - defs/resources execution order

问题描述

我在LWRP中具有以下内容，它所做的只是分解一个.ear文件：

I have the following in a LWRP, all it does is exploding an .ear file::

action :expand do
    ear_folder = new_resource.target_folder
    temp_folder = "#{::File.join(ear_folder, 'tmp_folder')}"

    expand_ear(new_resource.source, ear_folder)
    expand_wars(ear_folder,temp_folder)

end

def expand_ear(src,dest)
   bash "unzip EAR" do
     cwd dest
     code <<-EOF
     pwd
     ls -l
     jar -xvf #{src}         
     EOF
   end
end

def explode_wars(src,dest)
    Dir.glob("#{basepath}/*.war") do |file|
           ......... ###crete tmp folder, move .war there then unzip it to 'dest'
        end
end

当我运行此命令/使用Vagrant提供/时，输出显示Chef并行启动了 expand_ear和 expand_wars。结果，expand_wars def无法找到所有.wars /它们仍在提取中。我尝试将'expand_ear'布尔值包装在'expand_wars'中：

When I run this /using Vagrant provide/ the output shows that Chef starts 'expand_ear' and 'expand_wars' in parallel. As a consequence the expand_wars def fails to find all .wars /they are still being extracted. I tried making 'expand_ear' boolean and wrapping 'expand_wars' in :

if expand_ear?(src,dest) 
   expand_war 
end

但这会产生相同的结果。

but this yields the same result.???

推荐答案

厨师跑步由两个阶段组成，分别是 compile 和 execution 。在第一阶段，厨师检查食谱，然后进行以下操作：

Chef run consists of 2 phases, the compile and execution. During the first phase chef goes through recipes and:

1. 如果看到纯红宝石代码-它将被执行。


2. 如果看到资源定义-将其编译并放入资源集合。

您的问题是<$中的代码c $ c> expand_ear 被编译-因为它是资源，但是 explode_wars 中的代码立即被执行-因为它是纯红宝石。有两种可能的解决方案：

Your problem is that code in expand_ear gets compiled - because it's a resource, but the code in explode_wars gets executed straight away - because it's pure ruby. There are 2 possible solutions:

更改您的expand_ear以动态定义bash资源：

Change your expand_ear to define bash resource dynamically:

res = Chef::Resource::Bash.new "unzip EAR", run_context
res.cwd dest
res.code <<-EOF
  pwd
  ls -l
  jar -xvf #{src}         
  EOF
res.run_action :run

这是纯红宝石-因此将执行而不是编译。

This is pure ruby - and therefore will be executed instead of compiling.

OR 将红宝石代码放入explode_wars转换为ruby_block资源。

OR put your ruby code in explode_wars into ruby_block resource.

ruby_block do
  block do
    Dir.glob("#{basepath}/*.war") do |file|
       ......... ###crete tmp folder, move .war there then unzip it to 'dest'
    end
  end
end

这种方式也将被编译，并且仅在第二阶段执行。

This way it will be compiled too, and executed only during the 2nd phase.

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