*刪除分割區

1. 查看 parted 模組文件，刪除分割區的範例。

   [deyu1@kvm19 ansible]$ ansible-doc parted | grep Remove -A5
   - name: Remove partition number 1
     community.general.parted:
       device: /dev/sdb
       number: 1
       state: absent
   
   --
   - name: Remove all partitions from disk
     community.general.parted:
       device: /dev/sdb
       number: '{{ item.num }}'
       state: absent
     loop: '{{ sdb_info.partitions }}'
   

2. 撰寫 rmparts.yml，使用 parted 模組刪除 vda4 及 vda5 分割區。

   [deyu1@kvm19 ansible]$ cat rmparts.yml
   ---
   - hosts: balancers
     tasks:
     - name: Remove partitions from disk
       community.general.parted:
         device: /dev/vda
         number: 4
         state: absent
   

3. ansible-playbook 執行 rmparts.yml。

   [deyu1@kvm19 ansible]$ ansible-playbook rmparts.yml
   
   PLAY [balancers] ****************************************************************
   
   TASK [Gathering Facts] **********************************************************
   ok: [kvm15]
   
   TASK [Remove partitions from disk] **********************************************
   changed: [kvm15]
   
   PLAY RECAP **********************************************************************
   kvm15 : ok=2  changed=1  unreachable=0  failed=0  skipped=0  rescued=0  ignored=0
   

4. 再查看 kvm15 vda 硬碟的 vda4 ，已不存在。

   [deyu1@kvm19 ansible]$ ansible balancers -m shell -a "lsblk"
   kvm15 | CHANGED | rc=0 >>
   NAME              MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
   vda               252:0    0    6G  0 disk
   ├─vda1            252:1    0    1M  0 part
   ├─vda2            252:2    0  400M  0 part /boot
   └─vda3            252:3    0  3.4G  0 part
     ├─vg_kvm15-root 253:0    0  3.3G  0 lvm  /
     └─vg_kvm15-swap 253:1    0   96M  0 lvm  [SWAP]