disable Raspbian wireless-power-save with ansible

wireless-power-save-tasks-main.yml

---
- name: wireless-power-save | create unit file
  copy:
    dest: /etc/systemd/system/wifi_powersave@.service
    content: |
      [Unit]
      Description=Set WiFi power save %i
      After=sys-subsystem-net-devices-wlan0.device

      [Service]
      Type=oneshot
      RemainAfterExit=yes
      ExecStart=/sbin/iw dev wlan0 set power_save %i

      [Install]
      WantedBy=sys-subsystem-net-devices-wlan0.device  
  register: file_created

- name: wireless-power-save | debug
  debug:
    var: file_created
    verbosity: 2

- name: wiereless-power-save | reload systemd daemon
  systemd:
    daemon_reload: yes

- name: wireless-power-save | powersave 'off' enabled
  systemd:
    name: wifi_powersave@off.service
    enabled: yes    
    state: restarted
  
- name: wireless-power-save | powersave 'on' disabled
  systemd:
    name: wifi_powersave@on.service
    enabled: no

Create roles/wireless-power-save/tasks/main.yml with the above content.

It will disable powersave for wlan0 which is the default wireless interface on Raspbian.

This is especially interesting when using a Pi for (wireless) streaming.