'Ansible compare two list variables

I have to check if a list of mount points are available on the system.
So, I defined a variable with the list of mount points then extracted the available mount points from Ansible facts.

---
- hosts: all
  vars:
    required_mounts:
      - /prom/data
      - /prom/logs

  tasks:
    - name: debug mountpoint
      set_fact:
        mount_points: "{{ ansible_mounts|json_query('[].mount') }}"

    - name: check fs
      fail:
        msg: 'mount point not found'
      when: required_mounts not in mount_points

I am stuck here, I don't know how to compare the variable required_mounts with existing mount points.
If any item in required_mounts is not in the existing mount points the task should fail.

The task check fs always fail, even if the mount points are present.

Do I have to loop one by one? And compare item by item? If so, how can I achieve this?

ansible


Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source

Related Questions