WHEN CONDITION

[bablu]

I want to use the following condition in ansible playbook.

    Scenario is as follows.

        If  arg1 > 5
        follow some steps
        else
        endif;

IF ELSE is not possible in ansible. However, how can i achive with the WHEN condition.

[Brian Coca]

Just add a when to the tasks you want in the 'if'

when: arg1 > 5

for the 'else' just use the opposite condition.

when: arg1 <=5

----------

Brian Coca

[bablu]

I did create the small task. However, for defining variable (num, numami) in the same task is not working.

e.g

 tasks:
   - name: Condition statement  
     shell: date_string=`date +%d%b%G`; num=3; numami=5;
     when: $numami > $num
               echo Hi;

[Brian Coca]

These are not valid variables for Ansible (not since 1.6).  Also, setting them in a shell will not make them available.

  when: $numami > $num

----------

Brian Coca

[DHAVAL JAISWAL]

Where i can set this variable so that i can compare it in where condition.

Any small test scenario will help me to understand.

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Thanks & Regards
Dhaval Jaiswal

[Rodrigo B Brasil]

This should help:

http://docs.ansible.com/ansible/playbooks_variables.html

http://docs.ansible.com/ansible/set_fact_module.html

[]s,

Rodrigo B Brasil

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[DHAVAL JAISWAL]

Tried below one. However, when condition is not correctly evaluating.

Even following condition true its executing other commands mentioned in other when condition.
current_image_state <= desire_image_state


  tasks:
   - name: Get the state of the Test version
     shell: alert1=`cat /tmp/test.log |  grep -e "pending" -e "failed" | wc -l`;
     register: image_state
     tags: image

   - name: Set the output of the Test state
     set_fact: current_image_state=image_state.stdout
     tags: Test1

   - name: Define our static value for the desired Test state
     set_fact: desire_image_state=0
     tags: Test2

   - name: Perform TASK1
     command: sh /tmp/test.sh
     when: current_image_state > desire_image_state
     tags: final

   - name: Message if couldnot able to perform TASK1
     debug: msg="Need to check the status of Pending image"
     when: current_image_state <= desire_image_state
     tags: message

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[Johannes Kastl]

On 06.02.17 20:00 DHAVAL JAISWAL wrote:
> Tried below one. However, when condition is not correctly evaluating.

Please show the exact error message. Or the exact output, maybe with -v.

> tasks:
> - name: Get the state of the Test version
> shell: alert1=`cat /tmp/test.log | grep -e "pending" -e "failed" | wc
> -l`;
> register: image_state
> tags: image

Add a debug task here (with correct indentation):
- debug: var="image_state"

> set_fact: current_image_state=image_state.stdout

I guess here is your error. You set the variable current_image_state
to a text string called "image_state.stdout". Add double curly braces
and quotes:

set_fact: current_image_state="{{ image_state.stdout }}"

> - name: Define our static value for the desired Test state
> set_fact: desire_image_state=0

I am not sure if thus sets desire_image_state to an integer or a string.

Johannes

[DHAVAL JAISWAL]

Thanks !!

It works, post adding set_fact: current_image_state="{{ image_state.stdout }}".

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