Ansible部署逻辑卷

查看文件树

[root@ansible ansible]# tree disk/ 
disk/
├── fdisk.yaml
└── storage.yaml

配置Ansible的hosts清单

[root@ansible ansible]# cat  /etc/ansible/hosts 

[server]
172.25.254.137
172.25.254.139

基础准备

• 需要部署的机子准备50G的磁盘

[root@localhost ~]# lsblk  
NAME   MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vda    253:0    0  20G  0 disk 
└─vda1 253:1    0  20G  0 part /
vdb    253:16   0  50G  0 disk 

编写playbook

• 创建pv卷
• 检测到创建第二块磁盘的时候创建vg的卷组
• 创建lv逻辑卷
• 查找到创建的逻辑卷格式化xfs格式
• 将格式化好的逻辑卷挂在/mnt下面

[root@ansible disk]# cat  fdisk.yaml  
---
- hosts: server
  vars_files:
    - storage.yaml
  tasks:
    - name: Create a new partition
      parted:
        device: /dev/vdb
        number: "{{ item.number }}"
        state: present
        part_start: "{{ item.start }}"
        part_end: "{{ item.end }}"
      loop: "{{ partitions }}"
    
    - name: create volume group
      lvg:
        vg: "{{ item.vg }}"
        pvs: "{{ item.pvs }}"
      loop: "{{ volumegroup }}"

    - name: create logical volume
      lvol:
        vg: "{{ item.vg }}"
        lv: "{{ item.lv }}"
        size: "{{ item.size }}"
        resizefs: true
        force: yes
        state: present
      loop: "{{ logicalvolume }}"
      when: item.lv not in ansible_lvm["lvs"]

    - name: create a xfs 
      filesystem:
        fstype: "{{ item.fstype }}"
        dev: /dev/demo_vg3/lv2_test
      loop: "{{ filesystem }}"

    - name: mount lvs
      mount:
        path: "{{ item.path }}"
        src: /dev/demo_vg3/lv2_test
        fstype: xfs
        state: mounted
        opts: noatime
      loop: "{{ mountargs }}"

创建vars的变量文件

[root@ansible disk]# cat  storage.yaml  
---
partitions:
  - number: 1
    start: 1MiB
    end: 1GiB
  - number: 2
    start: 1GiB
    end: 2GiB

volumegroup:
  - vg: demo_vg3
    pvs: /dev/vdb2
    
logicalvolume:
  - vg: demo_vg3
    lv: lv2_test
    size: 100%FREE
    
filesystem:
  - fstype: xfs
  
mountargs:
  - path: /mnt

执行脚本

[root@ansible disk]# ansible-playbook fdisk.yaml                

PLAY [server] *************************************************************************************************************************************************************

TASK [Gathering Facts] ****************************************************************************************************************************************************
ok: [172.25.254.139]
ok: [172.25.254.137]

TASK [Create a new partition] *********************************************************************************************************************************************
ok: [172.25.254.137] => (item={u'start': u'1MiB', u'end': u'1GiB', u'number': 1})
ok: [172.25.254.139] => (item={u'start': u'1MiB', u'end': u'1GiB', u'number': 1})
ok: [172.25.254.137] => (item={u'start': u'1GiB', u'end': u'2GiB', u'number': 2})
ok: [172.25.254.139] => (item={u'start': u'1GiB', u'end': u'2GiB', u'number': 2})

TASK [create volume group] ************************************************************************************************************************************************
ok: [172.25.254.139] => (item={u'pvs': u'/dev/vdb2', u'vg': u'demo_vg3'})
ok: [172.25.254.137] => (item={u'pvs': u'/dev/vdb2', u'vg': u'demo_vg3'})

TASK [create logical volume] **********************************************************************************************************************************************
skipping: [172.25.254.137] => (item={u'lv': u'lv2_test', u'vg': u'demo_vg3', u'size': u'100%FREE'}) 
skipping: [172.25.254.139] => (item={u'lv': u'lv2_test', u'vg': u'demo_vg3', u'size': u'100%FREE'}) 

TASK [create a xfs] *******************************************************************************************************************************************************
ok: [172.25.254.137] => (item={u'fstype': u'xfs'})
ok: [172.25.254.139] => (item={u'fstype': u'xfs'})

TASK [mount lvs] **********************************************************************************************************************************************************
changed: [172.25.254.139] => (item={u'path': u'/mnt'})
changed: [172.25.254.137] => (item={u'path': u'/mnt'})

PLAY RECAP ****************************************************************************************************************************************************************
172.25.254.137             : ok=5    changed=1    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0   
172.25.254.139             : ok=5    changed=1    unreachable=0    failed=0    skipped=1    rescued=0    ignored=0   

验证检查

[root@ansible disk]# ansible all -m shell -a "df -h"
172.25.254.137 | CHANGED | rc=0 >>
Filesystem                     Size  Used Avail Use% Mounted on
/dev/vda1                       20G  1.1G   19G   6% /
devtmpfs                       1.9G     0  1.9G   0% /dev
tmpfs                          1.9G     0  1.9G   0% /dev/shm
tmpfs                          1.9G   17M  1.9G   1% /run
tmpfs                          1.9G     0  1.9G   0% /sys/fs/cgroup
tmpfs                          379M     0  379M   0% /run/user/0
/dev/mapper/demo_vg3-lv2_test 1017M   33M  985M   4% /mnt