Support watchdog Koenkk/zigbee2mqtt#23148

Author: Koenkk

common/rootfs/docker-entrypoint.sh

@@ -59,6 +59,11 @@ advanced:
 EOF
 fi
 
+if bashio::config.has_value 'watchdog'; then
+    export Z2M_WATCHDOG="$(bashio::config 'watchdog')"
+    bashio::log.info "Enabled Zigbee2MQTT watchdog with value '$Z2M_WATCHDOG'"
+fi
+
 export NODE_PATH=/app/node_modules
 export ZIGBEE2MQTT_CONFIG_FRONTEND='{"port": 8099}'
 

zigbee2mqtt-edge/config.json

@@ -68,7 +68,8 @@
       "adapter": "match(zstack|deconz|zigate|ezsp|ember)?",
       "baudrate": "int?",
       "rtscts": "bool?"
-    }
+    },
+    "watchdog": "str?"
   },
   "image": "zigbee2mqtt/zigbee2mqtt-edge-{arch}"
 }

zigbee2mqtt/DOCS.md

@@ -11,6 +11,15 @@ Configuration required to startup Zigbee2MQTT is available from the addon config
 The add-on will create a backup of your configuration.yml within your data path: `$DATA_PATH/configuration.yaml.bk`. When upgrading, you should use this to fill in the relevant values into your new config, particularly the network key, to avoid breaking your network and having to repair all of your devices.
 The backup of your configuration is created on add-on startup if no previous backup was found. 
 
+# Enabling the watchdog
+To automatically restart Zigbee2MQTT in case of a crash, the watchdog can be used. It can be enabled by adding the following to the addon configuration:
+
+```yaml
+watchdog: default
+```
+
+This will use the default watchdog retry delays of 1min, 5min, 15min, 30min, 60min. Custom delays are also supported, e.g. `watchdog: 5,10,30` will start Zigbee2MQTT with the watchdog's retry delays of 5min, 10min, 30min. For more information about the watchdog, read the [docs](https://www.zigbee2mqtt.io/guide/installation/15_watchdog.html).
+
 # Adding Support for New Devices
 If you are interested in adding support for new devices to Zigbee2MQTT see [How to support new devices](https://www.zigbee2mqtt.io/how_tos/how_to_support_new_devices.html).
 

zigbee2mqtt/config.json

@@ -68,7 +68,8 @@
       "adapter": "match(zstack|deconz|zigate|ezsp|ember)?",
       "baudrate": "int?",
       "rtscts": "bool?"
-    }
+    },
+    "watchdog": "str?"
   },
   "image": "zigbee2mqtt/zigbee2mqtt-{arch}"
 }