Script to upgrade Tailscale on a pfSense router.

pfSense-upgrade-tailscale.sh

#!/bin/sh
set -eu -o pipefail

# tailscale version
tailscale_ver=$1

# system versions
freebsd_arch=$(uname -m)
freebsd_ver=$(uname -r | perl -ne '/^(\d+)/;print $1;')
pfSense_pkg_ver=$(pkg version | grep 'pfSense-pkg-Tailscale-' | perl -ne '/pfSense-pkg-Tailscale-([\d\.]+)/;print $1;')

# package
pkg_repo="latest"
tailscale_pkg="tailscale-${tailscale_ver}.pkg"

set -x

# remove pfSense Tailscale package
pkg remove pfSense-pkg-Tailscale-$pfSense_pkg_ver

# install new tailscale version
fetch "https://pkg.freebsd.org/FreeBSD:$freebsd_ver:$freebsd_arch/$pkg_repo/All/$tailscale_pkg"
pkg-static remove tailscale
pkg-static add "$tailscale_pkg"
rm -f "$tailscale_pkg"

# install pfSense Tailscale package
pkg install pfSense-pkg-Tailscale-$pfSense_pkg_ver

# start the tailscale service
pfSsh.php playback svc start tailscale