Fix docker container when it can't connect to the internet https://stackoverflow.com/a/20431030

docker-fix.sh

# Source
# https://stackoverflow.com/a/20431030

# Turn off docker service
sudo service docker stop

# Delete iptables 
sudo iptables -t nat -F

# Bring docker ethernet interface down
sudo ifconfig docker0 down

# Delete docker ethernet interface
sudo brctl delbr docker0

# Turn on docker service
sudo service docker start