我想做的是将 awk 与 Ansible 结合使用，这样我就可以获得大于 50% 的主机名和 vlume
然后我可以运行以下命令来获取超过 50% 的音量
ansible-playbook pb-servermgmt_runcommand_goce.yml --extra-vars "hostlist=test01 command='df -hlT -x tmpfs -x devtmpfs -x iso9660 --total'" | awk '0+$6 >= 50 {print}'
"/dev/mapper/rhel-root xfs 50G 35G 16G 70% /",
我可以运行以下命令来显示服务器名称
ansible-playbook pb-servermgmt_runcommand_goce.yml --extra-vars "hostlist=test01 command='df -hlT -x tmpfs -x devtmpfs -x iso9660 --total'" | awk '/ok/ {print}'
ok: [test01] => {
test01 : ok=2 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
我想要以下输出
ok: [test01] => {
"/dev/mapper/rhel-root xfs 50G 35G 16G 70% /",
我正在查看，&&但我只是没有得到写入语法。有任何想法吗 ？
答案1
问：“获取主机名和使用率超过 50% 的卷”
答：而不是awk使用过滤器社区.general.jc解析命令的输出。注册命令的输出
- command: "{{ command }}"
register: out
并声明变量
my_df: "{{ out.stdout|community.general.jc('df') }}"
例如，下面的剧本
- hosts: "{{ hostlist }}"
vars:
my_df: "{{ out.stdout|community.general.jc('df') }}"
tasks:
- command: "{{ command }}"
register: out
- debug:
var: my_df
给出（删节）
shell> ansible-playbook pb.yml -e "hostlist=test01 command='df -hlT --total'"
PLAY [test01] *************************************************************************************
TASK [command] ************************************************************************************
changed: [test01]
TASK [debug] **************************************************************************************
ok: [test01] =>
my_df:
- available: 1
filesystem: devtmpfs
mounted_on: /dev
size: 1.9G
type: devtmpfs
use_percent: 0
used: 0
- available: 1
filesystem: tmpfs
mounted_on: /dev/shm
size: 1.9G
type: tmpfs
use_percent: 0
used: 0
- available: 1
filesystem: tmpfs
mounted_on: /run
size: 1.9G
type: tmpfs
use_percent: 11
used: 193
- available: 1
filesystem: tmpfs
mounted_on: /sys/fs/cgroup
size: 1.9G
type: tmpfs
use_percent: 0
used: 0
- available: 2
filesystem: /dev/mapper/cl-root
mounted_on: /
size: 18G
type: xfs
use_percent: 86
used: 15
- available: 820
filesystem: /dev/sda2
mounted_on: /boot
size: 1014M
type: xfs
use_percent: 20
used: 195
- available: 592
filesystem: /dev/sda1
mounted_on: /boot/efi
size: 599M
type: vfat
use_percent: 2
used: 7
- available: 374
filesystem: tmpfs
mounted_on: /run/user/1000
size: 374M
type: tmpfs
use_percent: 0
used: 0
- available: 12
filesystem: total
mounted_on: '-'
size: 27G
type: '-'
use_percent: 58
used: 16
...
然后，您可以使用该列表我的_df和选择或者拒绝你想要什么。看金贾测试。例如，选择所有类型的文件系统xfs其中使用率超过50%
my_df_xfs_50: "{{ my_df|selectattr('type', '==', 'xfs')|
selectattr('use_percent', '>', 50)}}"
，或选择文件系统/dev/mapper/cl-root
my_df_root: "{{ my_df|selectattr('filesystem', '==', '/dev/mapper/cl-root') }}"
在此示例中，两者给出相同的结果
my_df_xfs_50:
- available: 2
filesystem: /dev/mapper/cl-root
mounted_on: /
size: 18G
type: xfs
use_percent: 86
used: 15
my_df_root:
- available: 2
filesystem: /dev/mapper/cl-root
mounted_on: /
size: 18G
type: xfs
use_percent: 86
used: 15
写入主机名和使用率超过 50% 的卷
声明下面的字典
report: "{{ dict(ansible_play_hosts|
zip(ansible_play_hosts|
map('extract', hostvars, 'my_df_xfs_50'))) }}"
调试
- set_fact:
my_df_xfs_50: "{{ my_df_xfs_50 }}"
- debug:
msg: |
{{ report }}
run_once: true
给出
test01:
- available: 2
filesystem: /dev/mapper/cl-root
mounted_on: /
size: 18G
type: xfs
use_percent: 86
used: 15
看：
问：“不是已经可以通过设置模块从 ansible 事实中获取该信息了吗？”
答：是的。而不是命令df，可以使用ansible_mounts收集者设置。此列表不提供使用百分比。使用此属性更新列表。然后，下面的剧本
shell> cat pb.yml
- hosts: "{{ hostlist }}"
vars:
ansible_mounts_update_str: |
{% for i in ansible_mounts %}
{% set use_percent = 100 - i.size_available / i.size_total * 100 %}
- {{ i|combine({'use_percent': use_percent|round|int}) }}
{% endfor %}
ansible_mounts_update: "{{ ansible_mounts_update_str|from_yaml }}"
my_df_xfs_50: "{{ ansible_mounts_update|
selectattr('fstype', '==', 'xfs')|
selectattr('use_percent', '>', 50) }}"
my_df_root: "{{ ansible_mounts_update|
selectattr('device', '==', '/dev/mapper/cl-root') }}"
report: "{{ dict(ansible_play_hosts|
zip(ansible_play_hosts|
map('extract', hostvars, 'my_df_xfs_50'))) }}"
tasks:
- setup:
gather_subset: mounts
- debug:
var: ansible_mounts
- debug:
var: ansible_mounts_update
- debug:
var: my_df_xfs_50
- debug:
var: my_df_root
- set_fact:
my_df_xfs_50: "{{ my_df_xfs_50 }}"
- debug:
msg: |
{{ report }}
run_once: true
给出（删节的）相同的结果
shell> ansible-playbook pb.yml -e "hostlist=test01"
PLAY [test01] *************************************************************************************
TASK [setup] **************************************************************************************
ok: [test01]
...
TASK [debug] **************************************************************************************
ok: [test01] =>
my_df_xfs_50:
- block_available: 617954
block_size: 4096
block_total: 4561408
block_used: 3943454
device: /dev/mapper/cl-root
fstype: xfs
inode_available: 4944209
inode_total: 5351696
inode_used: 407487
mount: /
options: rw,seclabel,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota
size_available: 2531139584
size_total: 18683527168
use_percent: 86
uuid: 2cb4d983-108f-40f3-bc22-8afae8edc80a
TASK [debug] **************************************************************************************
ok: [test01] =>
my_df_root:
- block_available: 617954
block_size: 4096
block_total: 4561408
block_used: 3943454
device: /dev/mapper/cl-root
fstype: xfs
inode_available: 4944209
inode_total: 5351696
inode_used: 407487
mount: /
options: rw,seclabel,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota
size_available: 2531139584
size_total: 18683527168
use_percent: 86
uuid: 2cb4d983-108f-40f3-bc22-8afae8edc80a
TASK [set_fact] ***********************************************************************************
ok: [test01]
TASK [debug] **************************************************************************************
ok: [test01] =>
msg:
test01:
- block_available: 617954
block_size: 4096
block_total: 4561408
block_used: 3943454
device: /dev/mapper/cl-root
fstype: xfs
inode_available: 4944209
inode_total: 5351696
inode_used: 407487
mount: /
options: rw,seclabel,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota
size_available: 2531139584
size_total: 18683527168
use_percent: 86
uuid: 2cb4d983-108f-40f3-bc22-8afae8edc80a
PLAY RECAP ****************************************************************************************
test01: ok=7 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0