ansible迭代

ansible的迭代

需求1

在某台机器上创建多个文件，安装多个包。

实现方法

1. 编写yaml文件，创建file1 file2 file3 安装htop sl hping3安装包

root@linx:~/ansible/playbook# cat item.yaml 
---
- hosts: all
  remote_user: root

  tasks:
    - name: create some files
      file: name={{ item }} state=touch
      when: ansible_distribution_major_version == '6'
      loop:
        - file2
        - file1
        - file3
    - name: install some packages
      yum: name={{ item }}
      when: ansible_distribution_major_version == '7'
      loop:
        - htop
        - sl
        - hping3
    - name: install some packages
      apt: name={{ item }}
      when: ansible_distribution_major_version == '18'
      loop:
        - htop
        - sl
        - hping3
...

3. ansible运行

root@linx:~/ansible/playbook# ansible-playbook  item.yaml 

PLAY [all] *********************************************************************************************

TASK [Gathering Facts] *********************************************************************************
ok: [172.16.6.160]
ok: [172.16.6.161]
ok: [172.16.6.164]
ok: [172.16.6.163]

TASK [create some files] *******************************************************************************
skipping: [172.16.6.164] => (item=file2) 
skipping: [172.16.6.164] => (item=file1) 
skipping: [172.16.6.164] => (item=file3) 
skipping: [172.16.6.160] => (item=file2) 
skipping: [172.16.6.160] => (item=file1) 
skipping: [172.16.6.160] => (item=file3) 
skipping: [172.16.6.161] => (item=file2) 
skipping: [172.16.6.161] => (item=file1) 
skipping: [172.16.6.161] => (item=file3) 
changed: [172.16.6.163] => (item=file2)
changed: [172.16.6.163] => (item=file1)
changed: [172.16.6.163] => (item=file3)

TASK [install some packages] ***************************************************************************
skipping: [172.16.6.163] => (item=htop) 
skipping: [172.16.6.163] => (item=sl) 
skipping: [172.16.6.163] => (item=hping3) 
skipping: [172.16.6.164] => (item=htop) 
skipping: [172.16.6.164] => (item=sl) 
skipping: [172.16.6.164] => (item=hping3) 
ok: [172.16.6.161] => (item=htop)
ok: [172.16.6.160] => (item=htop)
ok: [172.16.6.161] => (item=sl)
ok: [172.16.6.160] => (item=sl)
ok: [172.16.6.161] => (item=hping3)
ok: [172.16.6.160] => (item=hping3)

TASK [install some packages] ***************************************************************************
skipping: [172.16.6.163] => (item=htop) 
skipping: [172.16.6.163] => (item=sl) 
skipping: [172.16.6.163] => (item=hping3) 
skipping: [172.16.6.160] => (item=htop) 
skipping: [172.16.6.160] => (item=sl) 
skipping: [172.16.6.160] => (item=hping3) 
skipping: [172.16.6.161] => (item=htop) 
skipping: [172.16.6.161] => (item=sl) 
skipping: [172.16.6.161] => (item=hping3) 
ok: [172.16.6.164] => (item=htop)
ok: [172.16.6.164] => (item=sl)
ok: [172.16.6.164] => (item=hping3)

PLAY RECAP *********************************************************************************************
172.16.6.160               : ok=2    changed=0    unreachable=0    failed=0   
172.16.6.161               : ok=2    changed=0    unreachable=0    failed=0   
172.16.6.163               : ok=2    changed=1    unreachable=0    failed=0   
172.16.6.164               : ok=2    changed=0    unreachable=0    failed=0