chef – 3. 下载cookbook

Chef cookbook可以从chef市场下载：supermarket.chef.io

我们将下载一个安装Apache的cookbook。

下载安装Apache的cookbook

cd chef-repo
knife cookbook site download learn_chef_httpd

输出

[root@qikegu chef-repo]# knife cookbook site download learn_chef_httpd
WARN: knife cookbook site download has been deprecated in favor of knife supermarket download. In Chef Infra Client 16 (April 2020) this will result in an error!
Downloading learn_chef_httpd from Supermarket at version 0.2.0 to /root/chef-repo/learn_chef_httpd-0.2.0.tar.gz
ERROR: Error connecting to https://s3.amazonaws.com/community-files.opscode.com/cookbook_versions/tarballs/10385/original/learn_chef_httpd.tgz?1426725483, retry 1/5
Cookbook saved: /root/chef-repo/learn_chef_httpd-0.2.0.tar.gz

提取压缩包

执行

tar -xvf learn_chef_httpd-0.2.0.tar.gz

输出

[root@qikegu chef-repo]# tar -xvf learn_chef_httpd-0.2.0.tar.gz
learn_chef_httpd/
learn_chef_httpd/.kitchen.yml
learn_chef_httpd/Berksfile
learn_chef_httpd/chefignore
learn_chef_httpd/metadata.json
learn_chef_httpd/metadata.rb
learn_chef_httpd/README.md
learn_chef_httpd/recipes/
learn_chef_httpd/templates/
learn_chef_httpd/templates/default/
learn_chef_httpd/templates/default/index.html.erb
learn_chef_httpd/recipes/default.rb
[root@qikegu chef-repo]# cd /root/chef-repo/learn_chef_httpd/recipes

查看 Recipe

这个cookbook下的相关文件多会被自动创建，无需做修改。让我们查看一下recipe目录下的Recipe description。

执行

cd /root/chef-repo/learn_chef_httpd/recipes
cat default.rb

输出

# Cookbook Name:: learn_chef_httpd
# Recipe:: default
#
# Copyright (C) 2014
#
#
#
package 'httpd'

service 'httpd' do
  action [:enable, :start]
end

template '/var/www/html/index.html' do
  source 'index.html.erb'
end

service 'iptables' do
  action :stop
end

附录

创建自己的receipe

我们也可以创建自己的receipe，关于receipe的格式，可参考官方文档。

创建一个receipe文件vim qikegu.rb：

[root@qikegu chef-repo]# vim qikegu.rb

内容如下，意思是添加一个文件/etc/qikegu，内容是’Welcome to Chef’

file '/etc/qikegu' do
content 'Welcome to Chef'
end

创建cookbook

可以创建自己的cookbook。

切换到/root/chef-repo/cookbooks，执行：

chef generate cookbook qikegu_config

输出：

[root@qikegu cookbooks]# chef generate cookbook qikegu_config
+---------------------------------------------+
            Chef License Acceptance

Before you can continue, 1 product license
must be accepted. View the license at
https://www.chef.io/end-user-license-agreement/

License that need accepting:
  * Chef Development Kit

Do you accept the 1 product license (yes/no)?

> Prompt timed out. Use non-interactive flags or enter an answer within 60 seconds.

If you do not accept this license you will
not be able to use Chef products.

...

查看生成的文件：

[root@qikegu cookbooks]# tree qikegu_config
qikegu_config
├── CHANGELOG.md
├── chefignore
├── kitchen.yml
├── LICENSE
├── metadata.rb
├── Policyfile.rb
├── README.md
├── recipes
│   ├── default.rb
├── spec
│   ├── spec_helper.rb
│   └── unit
│       └── recipes
│           └── default_spec.rb
└── test
    └── integration
        └── default
            └── default_test.rb

可以把创建的receipe文件qikegu.rb移到该cookbook的recipes目录下：

[root@qikegu cookbooks]# tree qikegu_config
qikegu_config
├── CHANGELOG.md
├── chefignore
├── kitchen.yml
├── LICENSE
├── metadata.rb
├── Policyfile.rb
├── README.md
├── recipes
│   ├── default.rb
│   └── qikegu.rb
├── spec
│   ├── spec_helper.rb
│   └── unit
│       └── recipes
│           └── default_spec.rb
└── test
    └── integration
        └── default
            └── default_test.rb