HA 1 monitor if HA 2 is online

Configuration
1

Hey guys,

what is the best way to monitor if ANOTHER Home Assistant has internet connection or not?

I already tried with Ping of the external url but it is always "disconnected".

What else do you recommend?

Greetings

2

Not sure if it is "the best", but you could try https://uptimerobot.com/

Or Uptimekuma? https://uptimekuma.org/

3

You can try the https://pulsetic.com/ asw ell. Setup the PING for monitoring your Home Assistant.

4

Call it's rest api

command_line:
  - sensor:
      command: !secret nw_ha
      name: nw_ha_curl
      scan_interval: 600
template:
  - binary_sensor:
      - name: nw_ha
        state: "{{ states('sensor.nw_ha_curl') | int(0) == 200}}"
        device_class: connectivity

In secrets.yaml

nw_ha: "curl --connect-timeout 10 -m 2.0 -s -o /dev/null -w '%{http_code}' -X GET -H 'Authorization: Bearer put_token_here' -H 'Content-Type: application/json'  http://5.5.5.5:8123/api/ || true"

Grab a long lived token from the HA UI.

1 Like
5

On HA2 create an automation that pings a site on the internet and if successful posts a message to a MQTT "heartbeat" topic.

On HA1 create an automation the checks the last MQTT message on the heartbeat topic.
If the heartbeat stops for more than X time, fire an alert that HA2 is down.