Ansible Fact - Accessing the additional facts - ansible

Question

I am doing a little research on Ansible facts. I am accessing facts in the debug module using something like: ansible_facts['mounts']. I noticed there are additional facts within the dictionary like "fstype" etc. However, when I try to access this like so ansible_facts['mounts']['fstype'] but I seems this is not the proper way to access this. I was testing a conditional with when to check for the fstype. Anyone know how to access this?
With everyone's help, here is the solution I came up with to assist with my research:
---
- name: Conditionals test
hosts: dev
tasks:
- name: Update the kernel if suff space
package:
name: kernel
state: latest
loop: "{{ ansible_facts['mounts'] }}"
when: item.mount == "/boot" and item.size_available > 20000000
I am looping through the ansible_facts list and checking for /boot and measuring the size. Thank you everyone!

Answer 1

To get a better understanding of the data structure of Ansible facts one can use the following example and test playbook.
---
- hosts: localhost
become: false
gather_facts: true
tasks:
- name: Show amount of mounts
debug:
msg:
- "{{ ansible_facts.mounts | type_debug }}"
- "{{ ansible_facts.mounts | length }}"
- name: Show mount type (sequence)
debug:
msg: "{{ ansible_facts.mounts[item | int].fstype }}"
loop: "{{ range(0, ansible_facts.mounts | length) | list }}"
- name: Show mount type (fact list)
debug:
msg: "{{ item.fstype }}"
loop: "{{ ansible_facts.mounts }}"
loop_control:
extended: true
label: "{{ ansible_loop.index0 }}"
it shows
That ansible_facts.mounts is mostly a list, how to get the data type and how to get the length of it
How to loop over a fact list with_sequence numbers
How to access the list element by index number (ansible_facts.mounts[item | int].fstype)
How to loop over a fact list and control the label
and resulting into an output of
TASK [Show mount type (sequence)] ******
ok: [localhost] => (item=0) =>
msg: ext4
ok: [localhost] => (item=1) =>
msg: ext4
ok: [localhost] => (item=2) =>
msg: ext4
ok: [localhost] => (item=3) =>
msg: vfat
TASK [Show mount type (fact list)] ******
ok: [localhost] => (item=0) =>
msg: ext4
ok: [localhost] => (item=1) =>
msg: ext4
ok: [localhost] => (item=2) =>
msg: ext4
ok: [localhost] => (item=3) =>
msg: vfat
Further Documentation
Ansible facts
with_sequence
Adding control to loops

Answer 2

I think your issue here is that you are trying to acces a list of mounts, you need to get one item from that list and get his fstype something like:
ansible_facts['mounts'][0]['fstype']
Or using a loop
- name: Print fstypes
debug:
var: "{{ item }}.fstype"
loop: "{{ ansible_facts.mounts }}"

Answer 3

or you can do this...
- name: Update the kernel if suff space
package:
name: kernel
state: latest
when: ansible_facts['mounts']|selectattr('mount','equalto','/boot')|map(attribute='size_available')|first > 20000000
rather than looping through the mounts at all.