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[root@idc-server2 ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 1B:2B:3B:4B:5B:6B
inet addr:172.16.1.2 Bcast:172.16.1.255 Mask:255.255.252.0
...
eth1 Link encap:Ethernet HWaddr 1A:2A:3A:4A:5A:6A
inet addr:100.100.100.100 Bcast:100.100.100.255 Mask:255.255.255.240
...
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
...
[root@idc-server1 ansible]# vim myfacts.yml
---
- hosts: idc-server2
roles:
- myfacts
[root@idc-server1 ansible]# mkdir -p roles/myfacts/{tasks,templates}
[root@idc-server1 ansible]# vim roles/myfacts/tasks/main.yml
---
- name: run myfacts module to get customized facts
myfacts: get_facts=yes
- name: update file with the customized facts
template: src=myfacts.txt.j2 dest=/tmp/myfacts.txt
[root@idc-server1 ansible]# vim roles/myfacts/templates/myfacts.txt.j2
ansible_private_ipv4_address : {{ ansible_private_ipv4_address }}
[root@idc-server1 ansible]# mkdir /usr/share/ansible/heylinux
[root@idc-server1 ansible]# vim /usr/share/ansible/heylinux/myfacts
#!/usr/bin/python
import sys
import json
import shlex
import commands
import re
def get_ansible_private_ipv4_address():
iprex = "(^192.168)|(^10.)|(^172.1[6-9])|(^172.2[0-9])|(^172.3[0-1])"
output = commands.getoutput("""/sbin/ifconfig |grep "Link encap" |awk '{print $1}' |grep -wv 'lo'""")
nics = output.split('n')
t_nic_info = ""
for i in nics:
ipaddr = commands.getoutput("""/sbin/ifconfig %s |grep -w "inet addr" |cut -d: -f2 | awk '{print $1}'""" % (i))
if re.match(iprex,ipaddr):
ansible_private_ipv4_address = ipaddr
return ansible_private_ipv4_address
args_file = sys.argv[1]
args_data = file(args_file).read()
arguments = shlex.split(args_data)
for arg in arguments:
if "=" in arg:
(key, value) = arg.split("=")
if key == "get_facts" and value == "yes":
ansible_private_ipv4_address = get_ansible_private_ipv4_address()
print json.dumps({
"changed" : False,
"ansible_facts" : {
"ansible_private_ipv4_address" : ansible_private_ipv4_address
}
})
sys.exit(0)
print json.dumps({
"changed" : False
})
[root@idc-server1 ansible]# ansible-playbook -u root myfacts.yml -i hosts
PLAY [idc1-server2] ***************************************************************
GATHERING FACTS ***************************************************************
ok: [idc1-server2]
TASK: [myfacts | run myfacts module to get customized facts] **************
ok: [idc1-server2]
TASK: [myfacts | update file with the customized facts] *********************
changed: [idc1-server2]
PLAY RECAP ********************************************************************
idc1-server2 : ok=3 changed=1 unreachable=0 failed=0
[root@idc-server1 ansible]# ssh idc1-server2 'cat /tmp/myfacts.txt'
ansible_private_ipv4_address : 172.16.1.2
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