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[原创]Chef Cookbook 02.创建文件

2016-05-18

Chef 的环境搭建不难,现在开始学习怎么写cookbook,比较常见的怎么让我们管理的node自动创建一个文件呢?

workstation上创建:

[root@workstation chef-repo]# pwd
/root/chef-repo

创建cookbook:

[root@workstation chef-repo]# knife cookbook create file_create
** Creating cookbook file_create in /root/chef-repo/cookbooks
** Creating README for cookbook: file_create
** Creating CHANGELOG for cookbook: file_create
** Creating metadata for cookbook: file_create
[root@workstation chef-repo]#

添加recipe:

[root@workstation chef-repo]# cd cookbooks
[root@workstation cookbooks]# ll
total 12
drwxr-xr-x. 10 root root 4096 May 18 23:01 file_create
drwxr-xr-x. 10 root root 4096 May 18 04:55 my-test-02
-rw-r--r--.  1 root root 3064 May 13 05:30 README.md
[root@workstation cookbooks]# cd file_create/recipes/
[root@workstation recipes]# ls -ltr
total 4
-rw-r--r--. 1 root root 137 May 18 23:01 default.rb
[root@workstation recipes]# cat default.rb 
#
# Cookbook Name:: file_create
# Recipe:: default
#
# Copyright 2016, YOUR_COMPANY_NAME
#
# All rights reserved - Do Not Redistribute
#
[root@workstation recipes]# vi default.rb 
[root@workstation recipes]# cat default.rb 
#
# Cookbook Name:: file_create
# Recipe:: default
#
# Copyright 2016, YOUR_COMPANY_NAME
#
# All rights reserved - Do Not Redistribute
# recipes/default.rb
template "#{ENV['HOME']}/file-create-test01.txt" do
  source 'file-create-test01.txt.erb' 
  mode '0755'
  owner 'root'
  group 'root'
end#
[root@workstation recipes]

添加模板:

[root@workstation recipes]# cd ..
[root@workstation file_create]# cd templates/
[root@workstation templates]# ls -ltr
total 0
drwxr-xr-x. 2 root root 6 May 18 23:01 default
[root@workstation templates]# vi file-create-test01.txt.erb
[root@workstation templates]# ls -ltr
total 4
drwxr-xr-x. 2 root root   6 May 18 23:01 default
-rw-r--r--. 1 root root 193 May 18 23:05 file-create-test01.txt.erb
[root@workstation templates]# cat file-create-test01.txt.erb 
<% # templates/default/hello-world.txt.erb %>
Hello World!


Chef Version: <%= node[:chef_packages][:chef][:version] %>
Platform: <%= node[:platform] %>
Version: <%= node[:platform_version] %>
[root@workstation templates]# chmod 755 file-create-test01.txt.erb
[root@workstation templates]# ll
total 4
drwxr-xr-x. 2 root root   6 May 18 23:01 default
-rwxr-xr-x. 1 root root 193 May 18 23:05 file-create-test01.txt.erb
[root@workstation templates]# 

上传cookbook到chef server:

[root@workstation templates]# knife cookbook upload 'file_create'
Uploading file_create    [0.1.0]
Uploaded 1 cookbook.
[root@workstation templates]# 
[root@workstation templates]# knife client list
1stchef-validator
chefclient.com
workstation
[root@workstation templates]# knife node list
chefclient.com
workstation
[root@workstation templates]# knife node show chefclient.com
Node Name:   chefclient.com
Environment: _default
FQDN:        chefclient
IP:          192.168.122.136
Run List:    recipe[my-test-02::test]
Roles:       
Recipes:     my-test-02::test
Platform:    centos 7.2.1511
Tags:        tags01

将相应的cookbook添加到对应节点run_list

[root@workstation templates]# knife node run_list add chefclient.com 'file_create'
chefclient.com:
  run_list:
    recipe[my-test-02::test]
    recipe[file_create]
[root@workstation templates]# knife node show chefclient.com
Node Name:   chefclient.com
Environment: _default
FQDN:        chefclient
IP:          192.168.122.136
Run List:    recipe[my-test-02::test], recipe[file_create]
Roles:       
Recipes:     my-test-02::test
Platform:    centos 7.2.1511
Tags:        tags01
[root@workstation templates]# 

workstation上执行或者client执行chef-client来从Chef server获取最新的cookbook,并且在目标node上执行。

方法一:

knife ssh chefclient ‘sudo chef-client’ -m -x root -P zaq12wsx

chefclient:node名

root:用户

zaq12wsx:密码

[root@workstation chef-repo]# knife ssh chefclient 'sudo chef-client' -m -x root -P zaq12wsx
chefclient Starting Chef Client, version 12.9.41
chefclient resolving cookbooks for run list: ["my-test-02::test", "file_create"]
chefclient Synchronizing Cookbooks:
chefclient   - my-test-02 (0.1.0)
chefclient   - file_create (0.1.0)
chefclient Installing Cookbook Gems:
chefclient Compiling Cookbooks...
chefclient hello world!
chefclient Converging 1 resources
chefclient Recipe: file_create::default
chefclient   * template[/root/file-create-test01.txt] action create (up to date)
chefclient 
chefclient Running handlers:
chefclient Running handlers complete
chefclient Chef Client finished, 0/1 resources updated in 01 seconds
[root@workstation chef-repo]# 
方法二:

chef-client

[root@chefclient ~]# chef-client
Starting Chef Client, version 12.9.41
resolving cookbooks for run list: ["my-test-02::test", "file_create"]
Synchronizing Cookbooks:
  - my-test-02 (0.1.0)
  - file_create (0.1.0)
Installing Cookbook Gems:
Compiling Cookbooks...
hello world!
Converging 1 resources
Recipe: file_create::default
  * template[/root/file-create-test01.txt] action create
    - create new file /root/file-create-test01.txt
    - update content in file /root/file-create-test01.txt from none to ccfe1c
    --- /root/file-create-test01.txt	2016-05-18 23:16:14.514000000 -0400
    +++ /root/.chef-file-create-test01.txt20160518-4329-1o2330c	2016-05-18 23:16:14.514000000 -0400
    @@ -1 +1,7 @@
    +Hello World!
    +
    +
    +Chef Version: 12.9.41
    +Platform: centos
    +Version: 7.2.1511
    - change mode from '' to '0755'
    - change owner from '' to 'root'
    - change group from '' to 'root'
    - restore selinux security context

Running handlers:
Running handlers complete
Chef Client finished, 1/1 resources updated in 02 seconds
[root@chefclient ~]# 

Node节点上确认新建文件内容

[root@chefclient ~]# ls -ltr
total 56952
-rw-------. 1 root root      951 May 11 04:33 anaconda-ks.cfg
-rwxr-xr-x. 1 root root 58307543 May 12 01:16 chef-12.9.41-1.el7.x86_64.rpm
-rwxr-xr-x. 1 root root       72 May 18 23:16 file-create-test01.txt
[root@chefclient ~]# cat file-create-test01.txt
Hello World!


Chef Version: 12.9.41
Platform: centos
Version: 7.2.1511
[root@chefclient ~]# 


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