Use global config for MQTT hosts

roles/services/templates/discord-bot.service

@@ -10,7 +10,7 @@ Restart=on-failure
 RestartSec=10s
 ExecStart=/var/lib/discord-bot/.venv/bin/python /var/lib/discord-bot/main.py
 DynamicUser=true
-Environment="MQTT_HOST=bitlair.nl"
+Environment="MQTT_HOST={{ mqtt_internal_host }}"
 Environment="DISCORD_WEBHOOK_URL={{ discord_webhook_url }}"
 Environment="DISCORD_TOKEN={{ discord_token }}"
 

roles/services/templates/irc-photos.sh

@@ -5,7 +5,7 @@
 set -eu
 set -o pipefail
 
-mqtt-simple -h mqtt.bitlair.nl -s "bitlair/photos" |
+mqtt-simple -h {{ mqtt_internal_host }} -s "bitlair/photos" |
     while read event; do
         path=$(echo $event | cut -d ' ' -f 2)
         url="https://bitlair.nl/fotos/view/$path"

roles/services/templates/mastodon-spacestate-config.py

@@ -1,4 +1,4 @@
-mqtt_server = 'mqtt.bitlair.nl'
+mqtt_server = '{{ mqtt_internal_host }}'
 mqtt_port = 1883
 
 spacestate_topic = 'bitlair/state'