#! /bin/sh


# TCP port 2377 for cluster management communications
# TCP and UDP port 7946 for communication among nodes
# UDP port 4789 for overlay network traffic
#
# See https://docs.docker.com/network/overlay/

sudo iptables -I INPUT 1 -p tcp --dport 2377 -j ACCEPT
sudo iptables -I OUTPUT 1 -p tcp --dport 2377 -j ACCEPT

sudo iptables -I INPUT 1 -p tcp --dport 7946 -j ACCEPT
sudo iptables -I OUTPUT 1 -p tcp --dport 7946 -j ACCEPT

sudo iptables -I INPUT 1 -p udp --dport 7946 -j ACCEPT
sudo iptables -I OUTPUT 1 -p udp --dport 7946 -j ACCEPT

sudo iptables -I INPUT 1 -p udp --dport 4789 -j ACCEPT
sudo iptables -I OUTPUT 1 -p udp --dport 4789 -j ACCEPT