ansible下字符串split的使用

由于工作需要，需要通過ansible對一批服務(wù)器的ip取最后一位，發(fā)現(xiàn)了ansible支持對字符串進行split切割操作

task.yaml

- hosts: all
  become_user: root
  become: yes
  gather_facts: no

  tasks:
   - name: print ip
     debug:
         var: {{inventory_hostname.split('.')[3]}}

hosts.ini

[all]
192.168.0.1 hostname="master" ansible_ssh_port=22 ansible_ssh_user=ubuntu
192.168.0.2 hostname="node1" ansible_ssh_port=22 ansible_ssh_user=ubuntu
192.168.0.3 hostname="node2" ansible_ssh_port=22 ansible_ssh_user=ubuntu

ansible.cfg

[defaults]
host_key_checking = False
any_errors_fatal = True
stdout_callback = debug
timeout = 30
forks = 50

[ssh_connection]
ssh_args=-F ansible_ssh_config
retries=10
pipelining = true 

ansible_ssh_config

Host *
ForwardAgent no
ControlMaster=auto
ControlPersist=1800s

執(zhí)行命令

ansible-playbook -i hosts.ini task.yaml -k -K

-k 輸入用戶ssh密碼
-K 輸入sudo密碼