---
- block:
    - name: Include OS family-specific variables
      include_vars: "{{ hostvars.localhost.ansible_os_family }}.yml"

    # Note: Currently we install these using the system package manager rather than
    # pip to a virtualenv. This is because Yum is required elsewhere and cannot
    # easily be installed in a virtualenv.
    - name: Ensure package dependencies are installed
      local_action:
        module: package
        name: "{{ item }}"
        state: present
        use: "{{ ip_allocation_package_manager }}"
      become: True
      with_items: "{{ ip_allocation_package_dependencies }}"
      run_once: True
  when:
    - hostvars.localhost.ansible_os_family == 'RedHat'
    - hostvars.localhost.ansible_distribution_major_version | int == 7

- name: Ensure IP addresses are allocated
  vars:
    # NOTE(mgoddard): Use the Python interpreter used to run ansible-playbook,
    # since this has Python dependencies available to it (PyYAML). On CentOS 7
    # we use the system Python to ensure that we can import SELinux bindings.
    ansible_python_interpreter: >-
      {{ '/usr/libexec/platform-python'
         if hostvars.localhost.ansible_os_family == 'RedHat' and hostvars.localhost.ansible_distribution_major_version | int == 7
         else ansible_playbook_python }}
  local_action:
    module: ip_allocation
    allocation_file: "{{ ip_allocation_filename }}"
    hostname: "{{ ip_allocation_hostname }}"
    net_name: "{{ item.net_name }}"
    cidr: "{{ item.cidr }}"
    allocation_pool_start: "{{ item.allocation_pool_start | default(omit) }}"
    allocation_pool_end: "{{ item.allocation_pool_end | default(omit) }}"
  with_items: "{{ ip_allocations }}"