Re: [ansible-project] Need assistance in using 'AND' and 'OR' condition together
- ansible_net_version is version('16.12.06', '>=') and
ansible_net_version not in ('17.03.02', 17.03.03', ... )
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Brian Coca
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Re: [ansible-project] Need assistance in using 'AND' and 'OR' condition together
Hi Antony,
On second thought, you are right in that condition will always end up
being "true". I guess my requirement can never be written as condition in
ansible.
Regards,
Vikram
On Thursday, 3 June, 2021 at 1:18:08 am UTC+5:30 Antony Stone wrote:
> 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
>
> Please reply to the list;
> please *don't* CC me.
>
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Re: [ansible-project] Need assistance in using 'AND' and 'OR' condition together
Hi Antony,
My condition to check is:
1.
Version is greater than or is 16.12.02 (i made a typo by entering
16.12.06 instead fo 16.12.02 for 1st condition) AND
2.
Version is NOT certain versions like 16.12.05 OR 16.09.06 OR 17.03.02',
etc as mentioned below.
Considering this, i am thinking my syntax was correct. Because iam using a
AND condition, so it won't always end up being "true.
Example: if device is running 16.09.07, it will match both conditions and
will fail (script will stop) which is what i want. But if version is
16.09.06, script won't fail.
Somy issue is that this AND and OR condition don't work when used together
but work when used separately.
Regards,
Vikram
On Thursday, 3 June, 2021 at 1:18:08 am UTC+5:30 Antony Stone wrote:
> 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
>
> Please reply to the list;
> please *don't* CC me.
>
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Re: [ansible-project] Need assistance in using 'AND' and 'OR' condition together
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
Please reply to the list;
please *don't* CC me.
