Char03 Ansible 组件介绍

3.1 Ansible Inventory

# cat ansible_hosts 
127.0.0.1
[TestSlavesMonkey]
TestSlave[5:6] ansible_ssh_user=jenkins

root@Ly:~# ansible -i ansible_hosts TestSlavesMonkey -m shell -a 'echo hello ansible'
TestSlave5 | success | rc=0 >>
hello ansible

TestSlave6 | success | rc=0 >>
hello ansible

ANSIBLE_HOST

3 动态 Inventory

　　就是Ansible 所有的Inventory文件里面的主机列表和变量信息都从外部拉取，只需要将ansible.cfg 中的inventory的定义值改为1个执行脚本

 #ansible -i ansible_host.py TestSlave6:TestSlave5 -u jenkins -m ping
TestSlave5 | success >> {
    "changed": false,
    "ping": "pong"
}

TestSlave6 | success >> {
    "changed": false,
    "ping": "pong"
}

3.2 Ansible Ad-Hoc 命令

3.2.1 执行命令

　　默认的并发数由ansible.cfg中的forks值来控制，也可以通过-f 执行并发数

3.2.2 复制文件

# ansible -i ansible_hosts TestSlavesMonkey -m copy -a "src=/tmp/test.txt dest=/tmp owner=jenkins group=jenkins mode=777 backup=yes" -o
TestSlave5 | success >> {"changed": true, "checksum": "4e1243bd22c66e76c2ba9eddc1f91394e57f9f83", "dest": "/tmp/test.txt", "gid": 1000, "group": "jenkins", "md5sum": "d8e8fca2dc0f896fd7cb4cb0031ba249", "mode": "0777", "owner": "jenkins", "size": 5, "src": "/home/jenkins/.ansible/tmp/ansible-tmp-1484640059.23-92200316607657/source", "state": "file", "uid": 1000}

TestSlave6 | success >> {"changed": true, "checksum": "4e1243bd22c66e76c2ba9eddc1f91394e57f9f83", "dest": "/tmp/test.txt", "gid": 1000, "group": "jenkins", "md5sum": "d8e8fca2dc0f896fd7cb4cb0031ba249", "mode": "0777", "owner": "jenkins", "size": 5, "src": "/home/jenkins/.ansible/tmp/ansible-tmp-1484640059.27-191166608385755/source", "state": "file", "uid": 1000}

# ansible -i ansible_hosts TestSlavesMonkey -m shell -a 'md5sum /tmp/test.txt' -f 5 -o
TestSlave5 | success | rc=0 | (stdout) d8e8fca2dc0f896fd7cb4cb0031ba249  /tmp/test.txt
TestSlave6 | success | rc=0 | (stdout) d8e8fca2dc0f896fd7cb4cb0031ba249  /tmp/test.txt

3.2.3 包和服务管理

3.2.4 用户管理

echo absible | openssl passwd -l stdin

ansbile docker -m user -a 'name=shencan password='XXX"' -f 5 - o

ss TestSlave4 -l shencan

3.3 Ansible playbook

3.4 Ansible facts

　　facts 组件是Ansible 用于采集被管机器设备信息的一个功能，可以使用setup 模块查机器的所有的facts信息，可以使用filter来查看指定的信息

　　facts 组件默认已经收集了很多的设备基础信息

# ansible -i ansible_hosts TestSlave5 -m setup -u jenkins -a 'filter=ansible_all_ipv4_addresses'
TestSlave5 | success >> {
    "ansible_facts": {
        "ansible_all_ipv4_addresses": [
            "172.17.150.21"
        ]
    },
    "changed": false
}

　　1 使用facter扩展facts信息

　　2 使用ohai 扩展facts信息

3.5 Ansible role

3.6 Ansible galaxy