Update add-tailscale-lxc.sh

added a menu that enables you to choose the specific container where you want to install Tailscale.

misc/add-tailscale-lxc.sh

@@ -17,9 +17,8 @@ EOF
 }
 clear
 header_info
-echo -e "\e[1;33mThis script will add Tailscale to an existing LXC Container ONLY\e[0m"
 while true; do
-  read -p "Did you replace 106 with your LXC ID? Proceed(y/n)?" yn
+  read -p "This will add Tailscale to an existing LXC Container ONLY. Proceed(y/n)?" yn
   case $yn in
   [Yy]*) break ;;
   [Nn]*) exit ;;
@@ -48,7 +47,24 @@ function msg() {
   echo -e "$TEXT"
 }
 
-CTID=$1
+NODE=$(hostname)
+while read -r line; do
+  TAG=$(echo "$line" | awk '{print $1}')
+  ITEM=$(echo "$line" | awk '{print substr($0,36)}')
+  OFFSET=2
+  if [[ $((${#ITEM} + $OFFSET)) -gt ${MSG_MAX_LENGTH:-} ]]; then
+    MSG_MAX_LENGTH=$((${#ITEM} + $OFFSET))
+  fi
+  CTID_MENU+=("$TAG" "$ITEM " "OFF")
+done < <(pct list | awk 'NR>1')
+
+while [ -z "${CTID:+x}" ]; do
+  CTID=$(whiptail --title "Containers on $NODE" --radiolist \
+    "\nSelect a container to add Tailscale to:\n" \
+    16 $(($MSG_MAX_LENGTH + 23)) 6 \
+    "${CTID_MENU[@]}" 3>&1 1>&2 2>&3) || exit
+done
+
 CTID_CONFIG_PATH=/etc/pve/lxc/${CTID}.conf
 cat <<EOF >>$CTID_CONFIG_PATH
 lxc.cgroup2.devices.allow: c 10:200 rwm