ansible中可以给task或playbook打tags，从而实现运行playbook中指定tag的task
ansible中tag有以下几种定义:
- always：该任务会一直被执行，除非用–skip-tags指定了该标签
- never：除非–tags指定了该标签，否则都不会执行。–tags never 执行标记always和never的任务
- 自定义tag
--tags/–skip-tags指令参数：
- always/never/自定义tag
- tagged：执行所有有标签的task，但不包括带never的task
- untagged：执行所有没有标签的task和带always的task
看一个样例
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| [root@manager test-tags]# cat debug-tags.yaml
---
- name: test tags
hosts: all
tasks:
- name: test untagged
debug:
msg: "no tag"
- name: test tag always
debug:
msg: "always tag"
tags:
- always
- name: test tag never
debug:
msg: "never tag"
tags:
- never
- name: test tag customer
debug:
msg: "tagged tag"
tags:
- test-tagged
|
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| [root@manager test-tags]# ansible-playbook -i hosts debug-tags.yaml
PLAY [test tags] *******************************************************************************************************
TASK [Gathering Facts] *************************************************************************************************
ok: [10.100.235.228]
TASK [test untagged] ***************************************************************************************************
ok: [10.100.235.228] => {
"msg": "no tag"
}
TASK [test tag always] *************************************************************************************************
ok: [10.100.235.228] => {
"msg": "always tag"
}
TASK [test tag customer] ***********************************************************************************************
ok: [10.100.235.228] => {
"msg": "tagged tag"
}
PLAY RECAP *************************************************************************************************************
10.100.235.228 : ok=4 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
|
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| [root@manager test-tags]# ansible-playbook -i hosts debug-tags.yaml --tags always
PLAY [test tags] *******************************************************************************************************
TASK [Gathering Facts] *************************************************************************************************
ok: [10.100.235.228]
TASK [test tag always] *************************************************************************************************
ok: [10.100.235.228] => {
"msg": "always tag"
}
PLAY RECAP *************************************************************************************************************
10.100.235.228 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
|
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| [root@manager test-tags]# ansible-playbook -i hosts debug-tags.yaml --tags never
PLAY [test tags] *******************************************************************************************************
TASK [Gathering Facts] *************************************************************************************************
ok: [10.100.235.228]
TASK [test tag always] *************************************************************************************************
ok: [10.100.235.228] => {
"msg": "always tag"
}
TASK [test tag never] **************************************************************************************************
ok: [10.100.235.228] => {
"msg": "never tag"
}
PLAY RECAP *************************************************************************************************************
10.100.235.228 : ok=3 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
|
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| [root@manager test-tags]# ansible-playbook -i hosts debug-tags.yaml --tags tagged
PLAY [test tags] *******************************************************************************************************
TASK [Gathering Facts] *************************************************************************************************
ok: [10.100.235.228]
TASK [test tag always] *************************************************************************************************
ok: [10.100.235.228] => {
"msg": "always tag"
}
TASK [test tag customer] ***********************************************************************************************
ok: [10.100.235.228] => {
"msg": "tagged tag"
}
PLAY RECAP *************************************************************************************************************
10.100.235.228 : ok=3 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
|
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| [root@manager test-tags]# ansible-playbook -i hosts debug-tags.yaml --tags uptagged
PLAY [test tags] *******************************************************************************************************
TASK [Gathering Facts] *************************************************************************************************
ok: [10.100.235.228]
TASK [test tag always] *************************************************************************************************
ok: [10.100.235.228] => {
"msg": "always tag"
}
PLAY RECAP *************************************************************************************************************
10.100.235.228 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
|
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| [root@manager test-tags]# ansible-playbook -i hosts debug-tags.yaml --skip-tags test-tagged
PLAY [test tags] *******************************************************************************************************
TASK [Gathering Facts] *************************************************************************************************
ok: [10.100.235.228]
TASK [test untagged] ***************************************************************************************************
ok: [10.100.235.228] => {
"msg": "no tag"
}
TASK [test tag always] *************************************************************************************************
ok: [10.100.235.228] => {
"msg": "always tag"
}
PLAY RECAP *************************************************************************************************************
10.100.235.228 : ok=3 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
|
定义多个tag
定义多个tags
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| [root@manager test-tags]# cat debug-tags.yaml
---
- name: test tags
hosts: all
tags:
- xadocker
tasks:
- name: test untagged
debug:
msg: "no tag"
- name: test tag
debug:
msg: "mytag"
tags:
- mytag
- name: test tag tag2
debug:
msg: "mytag mytag2"
tags:
- mytag
- mytag2
|
在剧本中定义tag
上面都是在tasks中定义tag，其实还可以在剧本中定义tag，此时该剧本中的所有task都会继承该tag
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| [root@manager test-tags]# cat debug-tags.yaml
---
- name: test tags
hosts: all
tags:
- xadocker
tasks:
- name: test untagged
debug:
msg: "no tag"
- name: test tag customer
debug:
msg: "tagged tag"
tags:
- test-tagged
|
测试运行
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| [root@manager test-tags]# ansible-playbook -i hosts debug-tags.yaml --tags uptagged
PLAY [test tags] *******************************************************************************************************
PLAY RECAP *************************************************************************************************************
[root@k8s-master test-tags]# ansible-playbook -i hosts debug-tags.yaml --tags tagged
PLAY [test tags] *******************************************************************************************************
TASK [Gathering Facts] *************************************************************************************************
ok: [10.100.235.228]
TASK [test untagged] ***************************************************************************************************
ok: [10.100.235.228] => {
"msg": "no tag"
}
TASK [test tag customer] ***********************************************************************************************
ok: [10.100.235.228] => {
"msg": "tagged tag"
}
PLAY RECAP *************************************************************************************************************
10.100.235.228 : ok=3 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
[root@k8s-master test-tags]# ansible-playbook -i hosts debug-tags.yaml --tags xadocker
PLAY [test tags] *******************************************************************************************************
TASK [Gathering Facts] *************************************************************************************************
ok: [10.100.235.228]
TASK [test untagged] ***************************************************************************************************
ok: [10.100.235.228] => {
"msg": "no tag"
}
TASK [test tag customer] ***********************************************************************************************
ok: [10.100.235.228] => {
"msg": "tagged tag"
}
PLAY RECAP *************************************************************************************************************
10.100.235.228 : ok=3 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
|