On Wednesday 02 June 2021 at 21:31:21, Vikram S wrote:
> I have written below script that will end the playbook if IOS version
> running on router satisfies below conditions:
>
> 1. Version is greater than or is 16.12.02 AND
> 2. Version is NOT certain versions like 16.12.05 OR 16.09.06 OR
> 17.03.02', etc as mentioned below.
>
> But script does not work. When i run this for a device with version
> 16.12.05, script fails though it shouldn't be as per the condition.
I think you have = and != mixed up.
> But when i test the 'AND' and 'OR' condition separately, they work. It's
> just that when i combine them, it doesn't seem to. What should i change?
Let's work through your conditions when version = 16.12.05...
> tasks:
>
> - name: GATHER DEVICE FACTS
> ios_facts:
> - name: END THIS PLAYBOOK IF DEVICE IS ALREADY RUNNING NEW IMAGE OR
> HIGHER VERSION THAN THAT
> fail:
So, you want it to fail when something below becomes true
> msg: DEVICE IS ALREADY RUNNING NEW IMAGE OR HIGHER VERSION THAN
> THAT. HENCE UPGRADE IS NOT NECESSARY
> when:
> - ansible_net_version is version('16.12.06', '>=')
Not true - version = 16.12.05
> - "ansible_net_version is version('16.12.05', '!=') or
Not true - version = 16.12.05, so "version != 16.12.05" is false
> ansible_net_version is version('16.09.06', '!=') or
True - version = 16.12.05, therefore != 16.09.06
> ansible_net_version is version('17.03.02', '!=') or
> ansible_net_version is version('17.03.03', '!=') or
> ansible_net_version is version('17.05.01', '!=') or
> ansible_net_version is version('17.07.01', '!=')"
One of the conditions is true, therefore script fails.
I *think* you want to replace "!=" with "=" so that failure occurs only if the
version does match one of the strings you have listed.
I might be wrong, and you want to keep "!=" but change "or" to "and" so that
failure occurs only if version is not equal to any of the listed strings.
Either way, I think what you have written will always end up being "true".
Antony.
--
There are two possible outcomes:
If the result confirms the hypothesis, then you've made a measurement.
If the result is contrary to the hypothesis, then you've made a discovery.
- Enrico Fermi
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