如果某些条件失败,则中止剩余任务的执行 [英] Abort execution of remaining task if certain condition is failed
问题描述
如果某些条件失败,我想中止剩余任务的执行. 并显示正确的错误消息.
I want to abort execution of remaining task if certain condition is failed. and display proper error message.
因此,我不想跳过剩余的任务,而是要显示错误消息并停止执行ansible剧本.
So instead of skipping remaining task I want to show error message and stop execution of ansible playbook.
让我们说我正在命令下运行
Lets say I am running below command
$ ansible-playbook playbook.yml -e "param1=value1 param2=value"
我的剧本看起来像这样:-
My playbook look like this:-
playbook.yml:-
---
- hosts: local
user: roop
gather_facts: no
vars: {param1: "", param2: ""}
tasks:
#check whether param1 defined
- name: 'Check for valid param1'
shell: echo {{ param1 }}
register: isValidParam1
when: param1 !=""
#check if param1 is null or invalid
- name: 'check if param1 is null or invalid'
debug: msg="Please enter correct param1"
when: param1 == ""
#check whether param2 defined
- name: 'Check for valid param2'
shell: echo {{ param2 }}
register: isValidParam2
when: param2 != ""
#check if param2 is null or invalid
- name: 'check if param2 is null or invalid'
debug: msg="Please enter correct param2"
when: param2 == ""
#check params is valid and defined
- name: 'Check for valid params'
shell: echo "param1={{ param1 }} param2={{ param2 }}
register: validParams
when: isValidParam1 is defined and isValidParam2 is defined
#check if params are invalid then abort below all tasks.
- name: 'check if validParams is null or invalid'
debug: msg="Please enter correct Params"
when: validParams is not defined
# based on validParams, and different value of param1 more than
10 task executing.
正如我在上一个任务注释中提到的那样.我正在根据validParams
和param1
的不同值执行10个以上的任务.我在这里需要什么
如果未定义validParams
,则中止所有执行并显示错误消息.
As I have mentioned in my last task comment. I am executing more than 10 task based on validParams
and param1
different value. What I need here
if validParams
is undefined then abort all execution and show error messages.
有什么有效的方法可以做到这一点.请给我建议.
Is there any efficient way to do this . Please suggest me.
推荐答案
您可以使用assert http://docs.ansible.com/assert_module.html 或 http://docs.ansible.com/失败fail_module.html
You can use assert http://docs.ansible.com/assert_module.html or fail http://docs.ansible.com/fail_module.html
它会伴随着这样的事情
#check if params are invalid then abort below all tasks.
- name: 'check parm is null or invalid'
fail: msg="Please enter correct Params"
when: "param1 is not defined or param2 is not defined " ## whatever condition you want
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