On 1/24/21 1:24 PM, j..r.. wrote:
> what will be jinja template if I would like to create report only for / and 
> /var partition? Or haw would I accomplish that?
> 
> Thanks
> 
> Regards
> 

You have (at least) two options here.

First with a if condition:

 {% for mt in ansible_mounts %}
 {% if mt.mount in ['/', '/var'] %}
 {{ mt.mount }}: {{ ( mt.size_available / ( 1024 | pow(3))) | round(2) }} GB 
free
 {% endif %}
 {% endfor %}

Second with a filter on ansible mounts:

 {% for mt in (ansible_mounts | selectattr('mount', 'search', '^/(var)*$') | 
list)  %}
 {{ mt.mount }}: {{ ( mt.size_available / ( 1024 | pow(3))) | round(2) }} GB 
free
 {% endfor %}

If the partitions to report vary between host / groups use the first solution 
and replace ['/', '/var']
with a variable, e.g.

report_parts:
  - /
  - /var

Regards
          Racke

> 
> 
> On Sunday, January 24, 2021 at 10:17:24 AM UTC+1 [email protected] wrote:
> 
>     On 1/23/21 1:11 PM, j..r.. wrote:
>     > Thanks, this works great, can you explain me more what this jinja2 
> template do especially:
>     >
>     > / ( 1024 | pow(3))) | round(2) } 
>     >
>     > / ( 1024 | pow(3)) --> is this divide1024 three times?  what is pow ?
>     > round(2) --> two decimal ?
>     >
>     > where can I get more jinja2 examples or tutorial?
> 
>     1024 | pow(3) ... that is 1024³ = 1024 * 1024 * 1024 = 1 GB
> 
>     round ... rounds a number with optional decimals, so 10.445 | round(2) => 
> 10.45.
> 
>     So we divide the available size by 1 GB and round it up. The parentheses 
> are important
>     to process in the correct orders.
> 
>     I maintain a couple of filter examples at
>     
> https://wiki.linuxia.de/library/stefan-hornburg-racke-ansible-provisioning-en#text-amuse-label-filters
>     
> <https://wiki.linuxia.de/library/stefan-hornburg-racke-ansible-provisioning-en#text-amuse-label-filters>
> 
>     Regards
>     Racke
> 
>     >
>     > Thanks
>     > On Friday, January 22, 2021 at 8:39:35 PM UTC+1 [email protected] wrote:
>     >
>     > On 1/22/21 5:29 PM, j..r.. wrote:
>     > > Hi
>     > >
>     > > I would like to create report for free partition size under 
> "ansible_mounts"
>     > >
>     > >        "ansible_mounts": [
>     > >            {
>     > >                "block_available": 3911145,
>     > >                "block_size": 4096,
>     > >                "block_total": 4452864,
>     > >                "block_used": 541719,
>     > >                "device": "/dev/mapper/vg_root-lv_root",
>     > >                "fstype": "xfs",
>     > >                "inode_available": 8871855,
>     > >                "inode_total": 8910848,
>     > >                "inode_used": 38993,
>     > >               * "mount": "/", *
>     > >                "options": 
> "rw,seclabel,relatime,attr2,inode64,noquota",
>     > >                *"size_available": 16020049920, *
>     > >                "size_total": 18238930944,
>     > >                "uuid": "e2968252-bcd8-45ac-9604-714aa932deb9"
>     > >            },
>     > >            {
>     > >                "block_available": 222270,
>     > >                "block_size": 4096,
>     > >                "block_total": 259584,
>     > >                "block_used": 37314,
>     > >                "device": "/dev/sda1",
>     > >                "fstype": "xfs",
>     > >                "inode_available": 523988,
>     > >                "inode_total": 524288,
>     > >                "inode_used": 300,
>     > >               * "mount": "/boot", *
>     > >                "options": 
> "rw,seclabel,relatime,attr2,inode64,noquota",
>     > >                *"size_available": 910417920, *
>     > >                "size_total": 1063256064,
>     > >                "uuid": "bcce38b2-0c6c-44aa-99be-20e3553d23ee"
>     > >
>     > >
>     > > how can I get variables for /, /var /boot and other partitions and 
> create report like this in a file:
>     > > root: 10GB free
>     > > /boot: 800MB free
>     > > /var: 2GB free
>     > >
>     > > Thanks
>     >
>     > - copy:
>     > content: |
>     > {% for mt in ansible_mounts %}
>     > {{ mt.mount }}: {{ ( mt.size_available / ( 1024 | pow(3))) | round(2) 
> }} GB free
>     > {% endfor %}
>     > dest:
>     > /tmp/freespace.txt
>     >
>     > This creates a report in /tmp/freespace.txt with the GB values with two 
> decimal spaces.
>     > Distinguishing between GB and MB would be a bit more complicated.
>     >
>     > Regards
>     > Racke
>     >
>     >
>     >
>     > --
>     > Ecommerce and Linux consulting + Perl and web application programming.
>     > Debian and Sympa administration. Provisioning with Ansible.
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Ecommerce and Linux consulting + Perl and web application programming.
Debian and Sympa administration. Provisioning with Ansible.

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