Proxmox/misc/add-tailscale-lxc.sh

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#!/usr/bin/env bash
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# Copyright (c) 2021-2024 tteck
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# Author: tteck (tteckster)
# License: MIT
# https://github.com/tteck/Proxmox/raw/main/LICENSE
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function header_info {
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clear
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cat <<"EOF"
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______ _ __ __
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/_ __/___ _(_) /_____________ _/ /__
/ / / __ `/ / / ___/ ___/ __ `/ / _ \
/ / / /_/ / / (__ ) /__/ /_/ / / __/
/_/ \__,_/_/_/____/\___/\__,_/_/\___/
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EOF
}
header_info
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set -e
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while true; do
read -p "This will add Tailscale to an existing LXC Container ONLY. Proceed(y/n)?" yn
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case $yn in
[Yy]*) break ;;
[Nn]*) exit ;;
*) echo "Please answer yes or no." ;;
esac
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done
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header_info
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echo "Loading..."
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function msg() {
local TEXT="$1"
echo -e "$TEXT"
}
NODE=$(hostname)
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MSG_MAX_LENGTH=0
while read -r line; do
TAG=$(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
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CTID=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "Containers on $NODE" --radiolist \
"\nSelect a container to add Tailscale to:\n" \
16 $(($MSG_MAX_LENGTH + 23)) 6 \
"${CTID_MENU[@]}" 3>&1 1>&2 2>&3) || exit
done
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CTID_CONFIG_PATH=/etc/pve/lxc/${CTID}.conf
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cat <<EOF >>$CTID_CONFIG_PATH
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lxc.cgroup2.devices.allow: c 10:200 rwm
lxc.mount.entry: /dev/net/tun dev/net/tun none bind,create=file
EOF
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header_info
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msg "Installing Tailscale..."
pct exec "$CTID" -- bash -c '
ID=$(grep "^ID=" /etc/os-release | cut -d"=" -f2)
VER=$(grep "^VERSION_CODENAME=" /etc/os-release | cut -d"=" -f2)
wget -qO- https://pkgs.tailscale.com/stable/$ID/$VER.noarmor.gpg >/usr/share/keyrings/tailscale-archive-keyring.gpg
echo "deb [signed-by=/usr/share/keyrings/tailscale-archive-keyring.gpg] https://pkgs.tailscale.com/stable/$ID $VER main" >/etc/apt/sources.list.d/tailscale.list
apt-get update &>/dev/null
apt-get install -y tailscale &>/dev/null
' || exit
msg "\e[1;32m ✔ Installed Tailscale\e[0m"
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msg "\e[1;31m Reboot ${CTID} LXC to apply the changes, then run tailscale up in the LXC console\e[0m"