測試 hosts.yml

1. ansible-playbook 執行 hosts.yml 腳本，成功在 dev 主機 kvm11 產生 /etc/myhosts。

   [deyu1@kvm19 ansible]$ ansible-playbook hosts.yml 
   
   PLAY [Create /etc/myhosts] *****************************************************
   
   TASK [Gathering Facts] *********************************************************
   ok: [kvm15]
   ok: [kvm12]
   ok: [kvm11]
   ok: [kvm13]
   ok: [kvm14]
   
   TASK [Template a file to /etc/myhosts] *****************************************
   skipping: [kvm12]
   skipping: [kvm15]
   skipping: [kvm13]
   skipping: [kvm14]
   changed: [kvm11]
   
   PLAY RECAP *********************************************************************
   kvm11 : ok=2 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
   kvm12 : ok=1 changed=0 unreachable=0 failed=0 skipped=1 rescued=0 ignored=0
   kvm13 : ok=1 changed=0 unreachable=0 failed=0 skipped=1 rescued=0 ignored=0
   kvm14 : ok=1 changed=0 unreachable=0 failed=0 skipped=1 rescued=0 ignored=0
   kvm15 : ok=1 changed=0 unreachable=0 failed=0 skipped=1 rescued=0 ignored=0
   

2. 查詢 kvm11 的 /etc/myhosts，群組所有主機皆已依格式列出。

   [deyu1@kvm19 ansible]$ ansible dev -m shell -a "cat /etc/myhosts"
   127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
   ::1 localhost localhost.localdomain localhost6 localhost6.localdomain
   
   192.168.122.11 kvm11.deyu.wang kvm11
   192.168.122.12 kvm12.deyu.wang kvm12
   192.168.122.15 kvm15.deyu.wang kvm15
   192.168.122.13 kvm13.deyu.wang kvm13
   192.168.122.14 kvm14.deyu.wang kvm14