CODEWITHSUNDEEP
ansible
JeremyCanfield
JeremyCanfield

Reputation: 673

Convert AnsibleUnsafeText to int

Let's say the df command return the following.

[john.doe@localhost ~]# df
Filesystem                           1K-blocks     Used Available Use% Mounted on
/dev/sda1                               372607   170989    177862  50% /boot
/dev/sda2                               129774     6994    122780   6% /

With Ansible, I can use the shell module to capture the available value for /dev/sda1 (177862).

---
- hosts: localhost
  tasks:
  - name: df command
    shell: df | grep sda1 | awk '{print $4}'
    register: out

  - name: standard out
    debug:
      msg: "{{ out.stdout }}"

  - name: type
    debug:
      msg: "{{ out.stdout | type_debug }}"

Which will show the type is AnsibleUnsafeText. If I do the same with gather_facts, AnsibleUnsafeText is also returned. I can't figure out how to get the type to be an integer instead of AnsibleUnsafeText.

TASK [standard out] 
ok: [localhost] => {
    "msg": "122780"
}

TASK [type] 
ok: [localhost] => {
    "msg": "AnsibleUnsafeText"
}

I tried using the int filter.

---
- hosts: localhost
  tasks:
  - name: df command
    shell: df | grep sda1 | awk '{print $4}'
    register: out

  - name: int filter
    set_fact:
      foo: "{{ out.stdout | int }}"

  - name: type
    debug:
      msg: "{{ foo | type_debug }}"

But even with the int filter, the type remains AnsibleUnsafeText.

TASK [type] 
ok: [localhost] => {
    "msg": "AnsibleUnsafeText"
}

The reason I want to the type to be int is so that I can compare integers, like this.

- name: do something
  debug:
    msg: do something
  when: df_available > '123456'

Upvotes: 9

Views: 12868

Answers (1)

toydarian
toydarian

Reputation: 4554

This "{{ out.stdout | int }}" will cast out.stdout to an int, but as it is a template, it will then cast it back to string, as a template always returns a string.
That is just what templates do. They evaluate the template code and then generate text and return it.

If you want to use the variable to compare it as int, you need to cast it every time, you use it:

- name: do something
  debug:
    msg: do something
  when: (df_available | int) > 123456

Upvotes: 13

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