PSA: Turn on/off all lights in Home Assistant 0.104+

@petro wrote:

If you want to turn on/off all lights now that group.all_lights is gone starting in v0.104, use the following service:

turn on

- service: light.turn_on
  data_template:
    entity_id: "{{ states.light | map(attribute='entity_id') | list | join(', ') }}"

turn off

- service: light.turn_off
  data_template:
    entity_id: "{{ states.light | map(attribute='entity_id') | list | join(', ') }}"

EDIT: This can also be replicated with just about any domain (Accept homeassistant.turn_on / homeassistant.turn_off).

ex switch domain

- service: switch.turn_off
  data_template:
    entity_id: "{{ states.switch | map(attribute='entity_id') | list | join(', ') }}"

EDIT EDIT: I believe this will also work without the crazy templates according to the docs here

- service: light.turn_on
  entity_id: all

EDIT EDIT EDIT:

This is getting more attention than i expected. Here is a canned condition to check if everything of a single domain is equal to a state, eg if all lights are on:

- condition: template
  value_template: >
    {% set domain = 'light' %}
    {% set state = 'on' %}
    {{ states[domain] | count == states[domain] | selectattr('state','eq', state) | list | count }}

To simply check other domains, like all device_tracker’s are home…

- condition: template
  value_template: >
    {% set domain = 'device_tracker' %}
    {% set state = 'home' %}
    {{ states[domain] | count == states[domain] | selectattr('state','eq', state) | list | count }}

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