---
- name: Install packages with complex conditions
  hosts: all
  vars:
    packages:
      - nmap
  tasks:
    - name: Find mount
      set_fact:
        my_mount_space: "{{ item.size_available }}"
      when: item.mount == "/boot"
      loop: "{{ ansible_facts.mounts }}"

    - name: debug stuff
      debug:
        msg: size available is {{ my_mount_space }}

    - name: Install the packages
      yum:
        name: "{{ packages }}"
        state: latest
      when: my_mount_space > 10240000