How do I round a value in Jinja?

[Mikael Sandström]

Hi,

I've got a template which does a few calculations on memory (to set up hugepages etc), and I need to round the result but I'm not sure how to.

This is the expression:


"{{ (((60/100)* ansible_memtotal_mb)*1024)/2048  }}"

I usually end up with a decimal, but I need to get rid of the decimal:

Result: 600.6 and I'd like to round that to 601

Result: 1201.1 should be rounded to 1201

etc

Any idea on how  to do that?

Thanks!

/M

[Matt Martz]

You are looking for the aptly named "round" filter:

http://jinja.pocoo.org/docs/dev/templates/#round

some_val|round

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[Mikael Sandström]

Doh!

Awesome, that did the trick.

someval |round|int

Thanks!

/M

On Saturday, August 30, 2014 7:41:08 PM UTC+2, Matt Martz wrote:

You are looking for the aptly named "round" filter:

http://jinja.pocoo.org/docs/dev/templates/#round

some_val|round

On Saturday, August 30, 2014, Mikael Sandström <ora...@gmail.com> wrote:

Hi,

I've got a template which does a few calculations on memory (to set up hugepages etc), and I need to round the result but I'm not sure how to.

This is the expression:


"{{ (((60/100)* ansible_memtotal_mb)*1024)/2048  }}"

I usually end up with a decimal, but I need to get rid of the decimal:

Result: 600.6 and I'd like to round that to 601

Result: 1201.1 should be rounded to 1201

etc

Any idea on how  to do that?

Thanks!

/M

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To unsubscribe from this group and stop receiving emails from it, send an email to ansible-project+unsubscribe@googlegroups.com.
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To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/7a9b2161-46d2-4484-b384-3ad52438065f%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

[Dick Davies]

Have a look at the '//' operator :
http://jinja.pocoo.org/docs/dev/templates/#math

- it rounds down, but saves the extra step.

On 30 August 2014 18:30, Mikael Sandström <ora...@gmail.com> wrote:

> This is the expression:
>
>
> "{{ (((60/100)* ansible_memtotal_mb)*1024)/2048 }}"

> I usually end up with a decimal, but I need to get rid of the decimal:
>
> Result: 600.6 and I'd like to round that to 601
>
> Result: 1201.1 should be rounded to 1201
> etc
>
> Any idea on how to do that?
>
> Thanks!
> /M
>

> --
> You received this message because you are subscribed to the Google Groups
> "Ansible Project" group.
> To unsubscribe from this group and stop receiving emails from it, send an

> email to ansible-proje...@googlegroups.com.
> To post to this group, send email to ansible...@googlegroups.com.

[Bohdan Sydor]

On Wed, Sep 3, 2014 at 9:48 AM, Dick Davies <di...@hellooperator.net> wrote:
> On 30 August 2014 18:30, Mikael Sandström <ora...@gmail.com> wrote:

>> "{{ (((60/100)* ansible_memtotal_mb)*1024)/2048 }}"

>> Result: 600.6 and I'd like to round that to 601
>>
>> Result: 1201.1 should be rounded to 1201

>> Any idea on how to do that?

Hi,

Please take a look at this example:

innodb_buffer_pool_size = {{
(0.85*ansible_memtotal_mb/1024)|int }}G

As a result I get:
innodb_buffer_pool_size = 120G

--
Best,
b

[Mikael Sandström]

Hi,

Yeah it's already sorted, but thanks!

/M