iptables rules will not be clear after the container is removed when using the host network

[jimlinntu]

I will provide the code to reproduce this issue later!

And I will provide a pull request later.

[jimlinntu]

I think

docker-openvpn/bin/ovpn_run

Lines 41 to 50 in 1228577

	function setupIptablesAndRouting {
	iptables -t nat -C POSTROUTING -s $OVPN_SERVER -o $OVPN_NATDEVICE -j MASQUERADE 2>/dev/null || {
	iptables -t nat -A POSTROUTING -s $OVPN_SERVER -o $OVPN_NATDEVICE -j MASQUERADE
	}
	for i in "${OVPN_ROUTES[@]}"; do
	iptables -t nat -C POSTROUTING -s "$i" -o $OVPN_NATDEVICE -j MASQUERADE 2>/dev/null || {
	iptables -t nat -A POSTROUTING -s "$i" -o $OVPN_NATDEVICE -j MASQUERADE
	}
	done
	}

ovpn_run should clean up iptables rule after the process exits.

[jimlinntu]

I have finished the script.
I will make a pull request later.