Create a route to an Evergreen workstation through the selected VPN interface

vpn_evg.sh

#!/bin/bash

set -e

host="${1:-$(<~/.local/etc/evghost)}"
vpn_name="${2:-"mongo vpn"}"

cat >&2 <<EOF
  host: [$host]
  vpn_name: [$vpn_name]
EOF

svc="$(
  scutil --nc list |
  grep -i "$vpn_name" |
  sed 's/.* \([^ ]*\) PPP .*/\1/'
)"

iface="$(
  scutil <<<"show State:/Network/Service/$svc/IPv4" |
  awk '/InterfaceName/ { print $3 }')"

cat >&2 <<EOF
  svc: [$svc]
  iface: [$iface]
EOF

[[ -n $iface ]] && /sbin/route add -host "$host" -interface "$iface"