在chef-client的第二次运行中，"link“上的docker_container的lazy属性没有得到解析，并且传递了不可读的值

Question

我第一次在堆栈溢出上问东西，在中国我很少遇到厨师开发者来谈论我的问题，所以我在这里张贴它来寻求帮助。这个问题已经困扰我好几个星期了，我仍然在努力解决它。

下面是我的错误消息：

  * directory[/root/tools/projectname/../bootproxy] action create (up to date)

* template/root/tools/projectname/../bootproxy/oc.proxy.conf操作创建(最新)*目录/根/工具/项目名/../引导代理操作创建(最新)*文件/tmp/dockerinfo.txt操作删除-删除文件/tmp/dockerinfo.txt* bashdocker ps -a|grep -v容器|grep -v监视器|awk '{print $1，$NF}‘操作运行-执行"bash“"/tmp/chef-script20170319-2107-fx41as”* ruby_blockresult操作运行-执行拼音块结果* docker_containerbootproxy操作重新部署-停止引导代理(将在30秒后终止)-删除引导代理$NF错误在资源'docker_containerbootproxy’================================================================================上执行操作redeploy

Docker::Error::ServerError
--------------------------
Could not get container for bootproxy

Cookbook Trace:
---------------
/var/chef/cache/cookbooks/docker/libraries/docker_container.rb:319:in `block (3 levels) in <class:DockerContainer>'
/var/chef/cache/cookbooks/docker/libraries/helpers_base.rb:66:in `with_retries'
/var/chef/cache/cookbooks/docker/libraries/docker_container.rb:250:in `block (2 levels) in <class:DockerContainer>'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/copied_from_chef/chef/provider.rb:81:in `converge_if_changed'
/var/chef/cache/cookbooks/docker/libraries/docker_container.rb:247:in `block in <class:DockerContainer>'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/copied_from_chef/chef/provider.rb:132:in `instance_eval'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/copied_from_chef/chef/provider.rb:132:in `compile_and_converge_action'
/var/chef/cache/cookbooks/docker/libraries/docker_container.rb:169:in `call_action'
/var/chef/cache/cookbooks/docker/libraries/docker_container.rb:360:in `block in <class:DockerContainer>'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/copied_from_chef/chef/provider.rb:132:in `instance_eval'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/copied_from_chef/chef/provider.rb:132:in `compile_and_converge_action'
/var/chef/cache/cookbooks/docker/libraries/docker_container.rb:169:in `call_action'
/var/chef/cache/cookbooks/docker/libraries/docker_container.rb:403:in `block in <class:DockerContainer>'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/copied_from_chef/chef/provider.rb:132:in `instance_eval'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/copied_from_chef/chef/provider.rb:132:in `compile_and_converge_action'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/monkeypatches/chef/runner.rb:78:in `run_action'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/monkeypatches/chef/runner.rb:106:in `block (2 levels) in converge'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/monkeypatches/chef/runner.rb:106:in `each'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/monkeypatches/chef/runner.rb:106:in `block in converge'
/var/chef/cache/cookbooks/compat_resource/files/lib/chef_compat/monkeypatches/chef/runner.rb:105:in `converge'

Resource Declaration:
---------------------
# In /var/chef/cache/cookbooks/webserver/recipes/default.rb

218:         docker_container container_name do
219:           repo docker[:image]
220:           tag docker[:tag]
221:           #Add all docker link
222:           # links node.set[:linking]
223:           links lazy{node.run_state[:linking]}
224:           env docker[:env]
225:           command docker[:command]
226:           kill_after 30
227:     #      autoremove true
228:           action :redeploy
229:           port docker[:ports]
230:           volumes node.default["bindvolume"]
231:           cap_add 'SYS_ADMIN'
232:           devices []
233:           privileged true
234:           timeout 30
235:     #      {["/dev/fuse"]}
236:         end
237:       else
238:         docker_container container_name do
239:           repo docker[:image]
240:           tag docker[:tag]
241:           #Add all docker link
242:           links node.run_state[:linking]
243:           env docker[:env]
244:           command docker[:command]
245:           kill_after 30
246:     #      autoremove true
247:           action :redeploy
248:           port docker[:ports]
249:           volumes node.default["bindvolume"]
250:           cap_add 'SYS_ADMIN'
251:           devices []
252:           privileged true
253:           timeout 30
254:     #      {["/dev/fuse"]}
255:         end
256:       end
257: 
258:       if (not (defined?(docker[:exec])).nil?) && (not "#{docker[:exec]}" == "")
259:         execute 'execute command inside docker' do
260:         command "docker exec -i #{container_name} /bin/bash -c \'#{docker[:exec]}\'"
261:         end
262:       end
263: 
264:       etchosts.push("#{container_name}:#{container_name}")
265:     end
266: 
267:     #Add proxy.conf to folder if bootproxy defined
268:     if defined?(node[:externalmode]) && node[:externalmode].eql?("bootproxy")
269:       #Prepare bootproxy directories
270:       directory "#{node[:deploycode][:basedirectory]}../bootproxy" do

Compiled Resource:
------------------
# Declared in /var/chef/cache/cookbooks/webserver/recipes/default.rb:218:in `block in from_file'

docker_container("bootproxy") do
  action [:redeploy]
  retries 0
  retry_delay 2
  default_guard_interpreter :default
  declared_type :docker_container
  cookbook_name "webserver"
  recipe_name "default"
  kill_after 30
  repo "daocloud.io/library/nginx"
  tag "stable-alpine"
  exposed_ports {"80/tcp"=>{}, "5000/tcp"=>{}}
  port_bindings {"80/tcp"=>[{"HostIp"=>"0.0.0.0", "HostPort"=>"80"}], "5000/tcp"=>[{"HostIp"=>"0.0.0.0", "HostPort"=>"5000"}]}
  port ["80:80", "5000:5000"]
  volumes_binds ["/root/tools/projectname/../bootproxy:/etc/nginx/conf.d/"]
  links #<ChefCompat::CopiedFromChef::Chef::DelayedEvaluator:0x000000055c4a90@/var/chef/cache/cookbooks/webserver/recipes/default.rb:223>
  cap_add ["SYS_ADMIN"]
  privileged true
  timeout 30
  connection #<Docker::Connection:0x00000008301238 @url="unix:///", @options={:socket=>"/var/run/docker.sock", :read_timeout=>60}>
  network_mode "bridge"
  detach true
  signal "SIGTERM"
end

运行处理程序: 2017-03-19T21:20:15+08:00错误:运行异常处理程序运行处理程序完成2017-03-19T21:20:15+08:00错误:异常处理程序完成Chef客户端失败。在34秒内更新了20个资源2017-03-19T21:20:15+08:00致命的:堆栈跟踪转储到/var/chef/cache/chef-stacktrace.out 2017-03-19T21:20:15+08:00错误: docker_containerbootproxy出现错误:Docker：：ERROR：：Docker错误:无法获取引导代理的容器

2017-03-19T21:20:15+08:00 FATAL: Chef::Exceptions::ChildConvergeError: Chef run process退出失败(退出代码1)

下面是我的代码：

  node.run_state[:linking] = []
  #Special handling if bootproxy,  get all local running docker id and name and link into bootproxy
  if localfolder.eql?("bootproxy")
    container_name = localfolder
    node.set[:dockerinfo] = []
    results = "/tmp/dockerinfo.txt"
    file results do
      action :delete
    end

    cmd = "docker ps -a|grep -v CONTAINER|grep -v monitor|awk \'{print $1, $NF}\'"
    bash cmd do
      code <<-EOH
      #{cmd} > #{results}
      EOH
    end

    ruby_block "result" do
      only_if { "cat #{results}| wc -l;while [ $? -ne 0 ]; do cat #{results}| wc -l;done" }
      # only_if { ::File.exists?(results) }
      block do
        f = File.open(results)
        dockerinfo = Hash.new
        f.each do |line|
          dockerinfo[line.chomp.split(' ')[0]] = line.chomp.split(' ')[1]
        end
        f.close
        node.set[:dockerinfo] = dockerinfo
        node.run_state[:linking] = dockerinfo
        node.run_state[:linking] = []
        node.set[:dockerinfo].each do |hash, dockername|
          node.run_state[:linking].push("#{dockername}:#{dockername}")
        end
      end
    end
  else
    node.run_state[:linking] = etchosts
  end

  if node.default["bindvolume"].eql?([":"])
    node.default["bindvolume"] = nil
  end
  if localfolder.eql?("bootproxy")
    # Using lazy evaluation if bootproxy
    docker_container container_name do
      repo docker[:image]
      tag docker[:tag]
      #Add all docker link
      # links node.set[:linking]
      links lazy{node.run_state[:linking]}
      env docker[:env]
      command docker[:command]
      kill_after 30
#      autoremove true
      action :redeploy
      port docker[:ports]
      volumes node.default["bindvolume"]
      cap_add 'SYS_ADMIN'
      devices []
      privileged true
      timeout 30
#      {["/dev/fuse"]}
    end
  else
    docker_container container_name do
      repo docker[:image]
      tag docker[:tag]
      #Add all docker link
      links node.run_state[:linking]
      env docker[:env]
      command docker[:command]
      kill_after 30
#      autoremove true
      action :redeploy
      port docker[:ports]
      volumes node.default["bindvolume"]
      cap_add 'SYS_ADMIN'
      devices []
      privileged true
      timeout 30
#      {["/dev/fuse"]}
    end
  end

我在这里尝试做的，是运行一组docker by chef docker cookbook version2.14.3，名称循环到" localfolder“中，当localfolder= "bootproxy”时，执行bash命令来检查docker当前正在运行什么，并通过名为"bootproxy“的nginx docker链接它们。

我这里的问题是，每当我清除了所有的缓存，或者在我重新上传了我所有的食谱"webserver“之后，chef-client都运行得很好，没有错误。但是当我重新运行chef-client时，我得到了

Docker::Error::ServerError
--------------------------
Could not get container for bootproxy

由于"docker_container“中的"links”值，资源变成了"#“，而不是包含当前运行的docker名称的数组，如"container1:container1”、"container2:container2“、"container3:container3”。因此，我怀疑尝试从主机获取值的ruby_block正在被缓存，并且在第一次连续执行后没有运行。我对缓存的删除(rm -rf /var/chef/ cache )证明了这一点，但我不能定义删除cookbook中的缓存(这也不是一种巧妙的解决方法)。我需要让chef-client能够重新运行，因为我正在使用它在整个环境中部署我的代码集。请对此给我任何建议。

谢谢!

Answer 1

我想你错过了修复第二个资源，它没有使用lazy{}助手。

总体而言，这段代码有点乱，所以很难知道它最初在做什么。我建议写很多测试，也许还有更多的注释。