Stop scripts for Umbrel OS systemd services (#110)

scripts/umbrel-os/external-storage/unmount

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# This script will:
+# - Look for external storage devices
+# - Check if they contain an Umbrel install
+# - If yes
+# - - Unmount it
+
+UMBREL_ROOT="$(readlink -f $(dirname "${BASH_SOURCE[0]}")/../../..)"
+MOUNT_POINT="/mnt/data"
+EXTERNAL_UMBREL_ROOT="${MOUNT_POINT}/umbrel"
+
+check_root () {
+  if [[ $UID != 0 ]]; then
+    echo "This script must be run as root"
+    exit 1
+  fi
+}
+
+check_dependencies () {
+  for cmd in "$@"; do
+    if ! command -v $cmd >/dev/null 2>&1; then
+      echo "This script requires \"${cmd}\" to be installed"
+      exit 1
+    fi
+  done
+}
+
+check_root
+check_dependencies sync umount
+
+if [[ ! -f "${EXTERNAL_UMBREL_ROOT}"/.umbrel ]]; then
+  echo "No external storage with Umbrel install found..."
+  exit 1
+fi
+
+echo "Unmounting external storage..."
+echo "Removing bind mount..."
+umount --lazy "${UMBREL_ROOT}"
+echo "Unmounting partition..."
+umount --lazy "${MOUNT_POINT}"
+sync
+sleep 1

scripts/umbrel-os/services/umbrel-external-storage.service

@@ -8,6 +8,7 @@ Description=External Storage Mounter
 Type=oneshot
 Restart=no
 ExecStart=/home/umbrel/umbrel/scripts/umbrel-os/external-storage/mount
+ExecStop=/home/umbrel/umbrel/scripts/umbrel-os/external-storage/unmount
 User=root
 Group=root
 StandardOutput=syslog

scripts/umbrel-os/services/umbrel-startup.service

@@ -14,6 +14,7 @@ After=docker.service
 Type=forking
 TimeoutSec=infinity
 ExecStart=/home/umbrel/umbrel/scripts/start
+ExecStop=/home/umbrel/umbrel/scripts/stop
 User=root
 Group=root
 StandardOutput=syslog