ansible 使用主机IP批量修改机器名
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1.首先看看我的hosts配置
root@jastme:/etc/ansible/playbooks# more ../hosts
[test]192.168.32.131 ansible_connection=local
[test1]192.168.32.133 ansible_ssh_pass=123[test2]192.168.32.132 ansible_ssh_pass=123[testall]192.168.32.132 ansible_ssh_pass=123192.168.32.133 ansible_ssh_pass=1232.看看2台主机的原始机器名
主机1[root@ZooKeeper-01 ~]# hostname ZooKeeper-01[root@ZooKeeper-01 ~]# ifconfig eth2eth2 Link encap:Ethernet HWaddr 00:0C:29:58:95:55
inet addr:192.168.32.132 Bcast:192.168.32.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:39614 errors:0 dropped:0 overruns:0 frame:0 TX packets:18265 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000
RX bytes:5279094 (5.0 MiB) TX bytes:1110521 (1.0 MiB)
主机2[root@ZooKeeper-02 ~]# hostname ZooKeeper-02[root@ZooKeeper-02 ~]# ifconfig eth2eth2 Link encap:Ethernet HWaddr 00:0C:29:C8:7F:48
inet addr:192.168.32.133 Bcast:192.168.32.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:41538 errors:0 dropped:0 overruns:0 frame:0 TX packets:20085 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000
RX bytes:6164131 (5.8 MiB) TX bytes:1729825 (1.6 MiB)3. 目标
我们需要需要改这两台机器的主机名，按照他们自己的IP修改 类似 web132 web133
4. playbook
root@jastme:/etc/ansible/playbooks# more changehostname.yml - hosts : testall
remote_user : root
tasks :
- name : show hostname
shell : hostname
- name : show ip
command : ip a
- hostname : name=web{{ ansible_default_ipv4.address.split('.')[-1] }} #直接调用res字典，引用成变量5.执行一下，看看结果
root@jastme:/etc/ansible/playbooks# ansible-playbook changehostname.yml PLAY [testall] ****************************************************************
GATHERING FACTS ***************************************************************
ok: [192.168.32.133] #IP{'module_name': 'setup', 'module_complex_args': {}, 'module_args': ''}
ok: [192.168.32.132]
{'module_name': 'setup', 'module_complex_args': {}, 'module_args': ''}
TASK: [show hostname] *********************************************************
changed: [192.168.32.133]
ZooKeeper-02 #主机名{'module_name': u'shell', 'module_complex_args': {}, 'module_args': u'hostname'}
changed: [192.168.32.132]
ZooKeeper-01{'module_name': u'shell', 'module_complex_args': {}, 'module_args': u'hostname'}
TASK: [show ip] ***************************************************************
changed: [192.168.32.133]1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 qlen 1000 link/ether 00:0c:29:c8:7f:34 brd ff:ff:ff:ff:ff:ff3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond1 qlen 1000 link/ether 00:0c:29:c8:7f:3e brd ff:ff:ff:ff:ff:ff4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:0c:29:c8:7f:48 brd ff:ff:ff:ff:ff:ff
inet 192.168.32.133/24 brd 192.168.32.255 scope global eth25: eth3: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 qlen 1000 link/ether 00:0c:29:c8:7f:34 brd ff:ff:ff:ff:ff:ff6: eth4: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond1 qlen 1000 link/ether 00:0c:29:c8:7f:3e brd ff:ff:ff:ff:ff:ff7: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue
link/ether 00:0c:29:c8:7f:34 brd ff:ff:ff:ff:ff:ff
inet 144.148.64.230/24 brd 144.148.64.255 scope global bond0
inet 144.148.64.231/32 brd 144.148.64.231 scope global bond0:08: bond1: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue
link/ether 00:0c:29:c8:7f:3e brd ff:ff:ff:ff:ff:ff
inet 10.25.17.82/24 brd 10.25.17.255 scope global bond1
inet 10.25.17.83/32 brd 10.25.17.83 scope global bond1:0{'module_name': u'command', 'module_complex_args': {}, 'module_args': u'ip a'}
changed: [192.168.32.132]1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo2: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 qlen 1000 link/ether 00:0c:29:58:95:41 brd ff:ff:ff:ff:ff:ff3: eth1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond1 qlen 1000 link/ether 00:0c:29:58:95:4b brd ff:ff:ff:ff:ff:ff4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 00:0c:29:58:95:55 brd ff:ff:ff:ff:ff:ff
inet 192.168.32.132/24 brd 192.168.32.255 scope global eth25: eth3: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 qlen 1000 link/ether 00:0c:29:58:95:41 brd ff:ff:ff:ff:ff:ff6: eth4: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond1 qlen 1000 link/ether 00:0c:29:58:95:4b brd ff:ff:ff:ff:ff:ff7: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue
link/ether 00:0c:29:58:95:41 brd ff:ff:ff:ff:ff:ff
inet 144.148.64.229/24 brd 144.148.64.255 scope global bond08: bond1: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue
link/ether 00:0c:29:58:95:4b brd ff:ff:ff:ff:ff:ff
inet 10.25.17.81/24 brd 10.25.17.255 scope global bond1
{'module_name': u'command', 'module_complex_args': {}, 'module_args': u'ip a'}
TASK: [hostname name=web{{ ansible_default_ipv4.address.split('.')[-1] }}] ****
changed: [192.168.32.133]
{'module_name': u'hostname', 'module_complex_args': {}, 'module_args': u'name=web133'} #这里就是我们需要的操作 可以看见主机名已经被修改成功changed: [192.168.32.132]
{'module_name': u'hostname', 'module_complex_args': {}, 'module_args': u'name=web132'}
PLAY RECAP ******************************************************************** 192.168.32.132 : ok=4 changed=3 unreachable=0 failed=0 192.168.32.133 : ok=4 changed=3 unreachable=0 failed=06. 验证
[root@ZooKeeper-01 ~]# hostname web132
[root@ZooKeeper-02 ~]# hostname web133验证修改成功
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