安装gem时主厨崩溃

Question

我用厨师和流浪汉当救世主。

当我试图按如下方式安装gems时，应用程序会崩溃：

metadata.rb

gem 'faraday'
gem 'json'

default.rb

require 'faraday'
require 'json'

conn = Faraday.new(:url => 'http://127.0.0.1:8200')

此错误引发：

==> default: Running handlers:
==> default: [2017-10-25T09:42:43+00:00] ERROR: Running exception handlers
==> default: Running handlers complete
==> default: [2017-10-25T09:42:43+00:00] ERROR: Exception handlers complete
==> default: Chef Client failed. 0 resources updated in 19 seconds
==> default: [2017-10-25T09:42:43+00:00] INFO: Sending resource update report (run-id: 7f4593f5-1c86-409c-95fe-988f09501740)
==> default: [2017-10-25T09:42:43+00:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
==> default: [2017-10-25T09:42:43+00:00] FATAL: Please provide the contents of the stacktrace.out file if you file a bug report
==> default: [2017-10-25T09:42:43+00:00] ERROR: Expected process to exit with [0], but received '5'
==> default: ---- Begin output of bundle install ----
==> default: STDOUT: Don't run Bundler as root. Bundler can ask for sudo if it is needed, and
==> default: installing your bundle as root will break this application for all non-root
==> default: users on this machine.
==> default: Fetching gem metadata from https://rubygems.org/
==> default: Fetching version metadata from https://rubygems.org/
==> default: Resolving dependencies...
==> default: Installing multipart-post 2.0.0
==> default: Installing json 2.1.0 with native extensions
==> default:
==> default: Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
==> default:
==> default:     current directory: /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/json-2.1.0/ext/json/ext/generator
==> default: /opt/chef/embedded/bin/ruby -r ./siteconf20171025-3434-1qh8whd.rb extconf.rb
==> default: creating Makefile
==> default:
==> default: current directory: /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/json-2.1.0/ext/json/ext/generator
==> default: make "DESTDIR=" clean
==> default:
==> default: current directory: /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/json-2.1.0/ext/json/ext/generator
==> default: make "DESTDIR="
==> default: compiling generator.c
==> default: make: gcc: Command not found
==> default: make: *** [generator.o] Error 127
==> default:
==> default: make failed, exit code 2
==> default:
==> default: Gem files will remain installed in /opt/chef/embedded/lib/ruby/gems/2.3.0/gems/json-2.1.0 for inspection.
==> default: Results logged to /opt/chef/embedded/lib/ruby/gems/2.3.0/extensions/x86_64-linux/2.3.0/json-2.1.0/gem_make.out
==> default: Using bundler 1.12.5
==> default: Installing faraday 0.13.1
==> default: An error occurred while installing json (2.1.0), and Bundler cannot continue.
==> default: Make sure that `gem install json -v '2.1.0'` succeeds before bundling.
==> default: STDERR:
==> default: ---- End output of bundle install ----
==> default: Ran bundle install returned 5
==> default: [2017-10-25T09:42:43+00:00] FATAL: Chef::Exceptions::ChildConvergeError: Chef run process exited unsuccessfully (exit code 1)
Chef never successfully completed! Any errors should be visible in the
output above. Please fix your recipes so that they properly complete.

gcc似乎失踪了，但我不能安装它，因为它首先尝试安装宝石，然后执行配方，所以在我做任何事情之前它就崩溃了。

-编辑--

我已经添加了这些行，并且正在工作：

metadata.rb：(从这里删除gem依赖项)

depends 'hashicorp-vault', '~> 2.5.0'
depends 'build-essential', '~> 8.0.3'

default.rb：

include_recipe 'hashicorp-vault::default'
chef_gem 'faraday'
chef_gem 'json'
require 'faraday'
require 'json'

Answer 1

安装gcc的主厨方式是使用build-essential食谱。

Answer 2

在厨师配置之前添加一个shell提供程序？

例如，在您的Vagrantfile中：

Vagrant.configure("2") do |config|
    config.vm.provision :shell, inline: 'yum install -y gcc'
    config.vm.provision :chef, inline: '...'
end

Answer 3

菜谱完全能够运行任意命令，因此，如果您知道如何手动运行，您可以使用厨师在紧要关头。尽管如此，您应该保护任何任意命令，这样它们就不会每次运行菜谱时运行，只在需要时才运行。

execute 'sudo yum groupinstall \'Development Tools\'' unless <your logic for 
detecting gcc goes here>

厨师也有Ohai，它在运行之前就收集元数据，包括您正在运行的操作系统，这样您就可以利用它来制作您的食谱多平台。

recipe.html

include_recipe 'mycookbook::debian' if node['platform_family'] == 'debian'
include_recipe 'mycookbook::rhel' if node['platform_family'] == 'rhel'

或者，如果您计划使用多种平台类型，则可以提供更多的灵活性。

possible_platforms = ['debian', 'rhel']
if possible_platforms.contains? node['platform_family']
   include_recipe "mycookbook::node['platform_family']"
else
    puts 'This platform isn't valid'
end