Migrate add-on data out of Home Assitant config dir

glances/config.yaml

@@ -22,10 +22,11 @@ ports_description:
 map:
   - addons
   - backup
-  - config:rw
+  - addon_config:rw
   - share
   - ssl
   - media
+  - homeassistant_config:rw # to enable migration to addon_config
 hassio_api: true
 auth_api: true
 docker_api: true

glances/rootfs/etc/cont-init.d/glances.sh

@@ -6,6 +6,15 @@
 declare protocol
 bashio::require.unprotected
 
+# Migrate add-on data from the Home Assistant config directory,
+# to the add-on configuration directory.
+if ! bashio::fs.file_exists '/config/glances.conf' \
+    && bashio::fs.file_exists '/homeassistant/glances/glances.conf'; then
+    shopt -s dotglob
+    mv /homeassistant/glances/* /config/ \
+        || bashio::exit.nok "Failed to migrate Glances configuration out of Home Assistant config directory"
+fi
+
 # Ensure the configuration exists
 if bashio::fs.file_exists '/config/glances/glances.conf'; then
     cp -f /config/glances/glances.conf /etc/glances.conf