Create add-tailscale-lxc.sh

misc/add-tailscale-lxc.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+echo -e "\e[1;33m This 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
+    case $yn in
+        [Yy]* ) break;;
+        [Nn]* ) exit;;
+        * ) echo "Please answer yes or no.";;
+    esac
+done
+
+set -o errexit
+set -o errtrace
+set -o nounset
+set -o pipefail
+shopt -s expand_aliases
+alias die='EXIT=$? LINE=$LINENO error_exit'
+trap die ERR
+trap cleanup EXIT
+
+function error_exit() {
+  trap - ERR
+  local DEFAULT='Unknown failure occured.'
+  local REASON="\e[97m${1:-$DEFAULT}\e[39m"
+  local FLAG="\e[91m[ERROR] \e[93m$EXIT@$LINE"
+  msg "$FLAG $REASON"
+  exit $EXIT
+}
+function msg() {
+  local TEXT="$1"
+  echo -e "$TEXT"
+}
+function cleanup() {
+  popd >/dev/null
+  rm -rf $TEMP_DIR
+}
+TEMP_DIR=$(mktemp -d)
+pushd $TEMP_DIR >/dev/null
+
+CTID=$1
+CTID_CONFIG_PATH=/etc/pve/lxc/${CTID}.conf
+cat <<EOF >> $CTID_CONFIG_PATH
+lxc.cgroup2.devices.allow: c 10:200 rwm
+lxc.mount.entry: /dev/net/tun dev/net/tun none bind,create=file
+EOF
+
+lxc-attach -n $CTID -- bash -c "$(wget -qLO - https://raw.githubusercontent.com/tteck/Proxmox/main/misc/add-tailscale-install.sh)" || exit
+
+msg "\e[1;33m Finished....Reboot ${CTID} LXC to apply the changes \e[0m"