Specify vpn endpoint in the config file

tools/dind/config/env

@@ -6,6 +6,7 @@ PUBNUB_PUBLISH_KEY=pub-c-bananas
 MIXPANEL_TOKEN=bananasbananas
 LISTEN_PORT=48484
 RESIN_SUPERVISOR_SECRET=bananas
+VPN_ENDPOINT=vpn.resinstaging.io
 
 SUPERVISOR_IMAGE=
 LED_FILE=/dev/null

tools/dind/config/openvpn/client.conf.tmpl

@@ -1,5 +1,5 @@
 client
-remote vpn.resinstaging.io 443
+remote #{VPN_ENDPOINT} 443
 resolv-retry infinite
 
 remote-cert-tls server

tools/dind/vpn-init

@@ -1,4 +1,6 @@
 #!/bin/bash
+sed --expression="s/#{VPN_ENDPOINT}/${VPN_ENDPOINT}/" /etc/openvpn/client.conf.tmpl > /etc/openvpn/client.conf
+
 while true; do
 	if [ `jq ".uuid | length" $CONFIG_PATH` -eq 0 ]; then
 		echo "UUID missing from config file, VPN cannot connect"