chef-infra - Chef，如何在创建服务之前运行创建 init.d 脚本的模板

Question

下面是我的 nginx 模板。

我面临一个问题 22. 我需要安装一个 init.d 模板。所以我有一个 nginx erb 模板放在/etc/init.d/nginx 中。

我什至尝试将代码放在食谱的顶部。该配方依赖于 init.d 文件，但直到为时已晚才执行它，结果我收到此错误:

STDERR: update-rc.d: /etc/init.d/nginx: file does not exist
---- End output of "bash"  "/tmp/chef-script20120330-26326-3ologp-0" ----
Ran "bash"  "/tmp/chef-script20120330-26326-3ologp-0" returned 1
[Fri, 30 Mar 2012 06:22:15 +0000] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
[Fri, 30 Mar 2012 06:22:15 +0000] ERROR: Sleeping for 60 seconds before trying again

在下一轮厨师客户中，事情会奏效，因为模板被创建了。

如何在为 nginx 注册服务资源之前立即执行模板？一个快速的解决方法是我创建了一个配方，它将在 nginx 之前运行模板来安装模板，但这似乎很荒谬。

这个模板需要在服务注册之前安装。

template "nginx" do
      path "/etc/init.d/nginx"
      source "nginx.erb"
      owner "root"
      group "root"
      mode "0755"
    end

然后注册服务器。

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







####################################
#Install Nginx
####################################
#http://wiki.nginx.org/HttpLuaModule#Installation
version = node[:nginx][:version]
package "libpcre3" do
  action :install
end
package "libpcre3-dev" do
  action :install
end
package "libpcre++-dev" do
  action :install
end
package "openssl" do
  action :install
end

template "nginx" do
  path "/etc/init.d/nginx"
  source "nginx.erb"
  owner "root"
  group "root"
  mode "0755"
end

#mkdir /var/log/nginx
directory "/var/log/nginx" do
  owner "root"
  group "root"
  mode "0755"
  action :create
  #not_if "test -f /etc/nginx/lock"
end

remote_file "/tmp/nginx-#{version}.tar.gz" do
  source "http://nginx.org/download/nginx-#{version}.tar.gz"
  checksum node[:nginx][:checksum]
  action :create_if_missing
  notifies :run, "bash[install_nginx]", :immediately
end


bash "install_nginx" do
  user "root"
  cwd "/tmp"
  code <<-EOH
    tar -xvf nginx-#{version}.tar.gz
    cd nginx-#{version}
    ./configure --with-http_stub_status_module  
    make -j2
    make install
    ln -s /usr/local/nginx/conf/ /etc/nginx
    /usr/sbin/update-rc.d -f nginx defaults
  EOH
  action :nothing
  creates "/usr/sbin/nginx"
  notifies :restart, "service[nginx]"
  #not_if "test -f /etc/redis/lock"
end


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

#ln -s /usr/local/nginx/conf/ /etc/nginx
#link "/usr/local/nginx/conf/" do
#  to "/etc/nginx"
#  link_type :hard
#end

link "/usr/local/nginx/logs/access.log" do
  to "/var/log/nginx/access.log"
end

link "/usr/local/nginx/logs/error.log" do
  to "/var/log/nginx/error.log"
end

file "/etc/nginx/lock" do
  owner "root"
  group "root"
  mode "0755"
  action :create_if_missing
end

template "nginx.conf" do
  path "/etc/nginx/nginx.conf"
  source "nginx.conf.erb"
  owner "root"
  group "root"
  mode "0644"
  #notifies :reload, "service[nginx]"
  notifies :reload, resources(:service => "nginx"), :immediately
end

谢谢

Answer 1

您可以将服务上的操作设置为 :nothing。然后让模板通知服务启用。这样模板将被处理，然后服务将被启用:

service "nginx" do
  supports :restart => true, :start => true, :stop => true, :reload => true
  action :nothing
end 

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

然后服务将等到模板处理完毕。