Char02 Ansible 安装与配置
Char02 Ansible 安装与配置Ansible 配置管理系统由 控制主机和被管理节点组成
控制主机，目前不支持windows OS
1 Install
1.1 源码安装
Tar包安装方式
制作rpm包安装方式
1.2 包管理安装
2 Ubuntu :
sudo apt-gett install software-properties-common
sudo apt-add-repository ppa:ansible/ansible
sudo apt-get udpate
sudo apt-get install ansible
3 Homebrew ( Mac OSX )安装方式
4 PIP
2.3 配置运行环境
1 ANSIBLE_CONFIG
./ansible.cfg -> ~/.ansible.cfg -> /etc/ansible.cfg
2 使用公钥认证
2.3.3 配置linux 主机ssh 无密码访问
step 1 : ansbie control 上创建秘钥:
root@Ly:~# ssh-keygen -t rsa -C "YL@XXX"
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your>
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
2a:c8:b2:7a:13:94:81:a9:e4:fe:5f:ac:7c:4b:b6:24 YL@XXX
The key's randomart image is:
+--[ RSA 2048]----+
| o |
|o.. |
|+o |
|..o |
|.. S |
| o.... |
|. +..E.* |
| oo...B.. |
|+. ..+.o. |
+-----------------+
setp 2 : 下发密钥：
控制主机将公钥id_rsa.pub下发到被管理节点上用户的.ssh目录
# ssh-copy-id -i ~/.ssh/id_rsa.pub jenkins@TestSlave5
The authenticity of host 'testslave5 (172.17.150.21)' can't be established.
ECDSA key fingerprint is 5e:a9:90:86:c8:73:4f:05:e1:7d:05:d3:1c:53:b0:d9.
Are you sure you want to continue connecting (yes/no)? yes
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
jenkins@testslave5's password:
Number of key(s) added: 1
Now try logging into the machine, with: "ssh 'jenkins@TestSlave5'"
and check to make sure that only the key(s) you wanted were added.
2.4 Ansible 测试
2.4.1 主机连通性测试
step 1 : 修改主机与组配置 ， ansible_hosts 格式为ini
# cat ansible_hosts
127.0.0.1
TestSlave
step 2 :
# ansible -i ansible_hostsTestSlavesMonkey -m ping -u jenkins
TestSlave6 | success >> {
"changed": false,
"ping": "pong"
}
TestSlave5 | success >> {
"changed": false,
"ping": "pong"
}
2.4.2 在被管理节点上批量执行
# ansible -i ansible_hostsTestSlavesMonkey -u jenkins -m shell -a 'echo hello ansible'
TestSlave5 | success | rc=0 >>
hello ansible
TestSlave6 | success | rc=0 >>
hello ansible
2.5 获取帮助信息
# ansible-doc -h
Usage: ansible-doc
Show Ansible module documentation
Options:
--version show program's version number and exit
-h, --help show this help message and exit
-M MODULE_PATH, --module-path=MODULE_PATH
Ansible modules/ directory
-l, --list List available modules
-s, --snippet Show playbook snippet for specified module(s)
-v Show version number and exit
ansible-doc -l 列出了Ansible 系统支持的模块，Ansible 安装后能够列出259个模块
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