[Bug 1033606] Failed to connect to network from Docker container

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=1033606

--- Comment #36 from Lokesh Mandvekar  ---
So, this service file should work (works for me) even if firewalld isn't
present on the system:

[Unit]
Description=Docker container management daemon
Wants=firewalld.service
After=firewalld.service

[Service]
Type=simple
ExecStartPre=/usr/sbin/sysctl -w net.ipv4.ip_forward=1
net.ipv6.conf.all.forwarding=1
ExecStart=/usr/bin/docker -d
ExecStartPost=firewall-cmd --add-masquerade
Restart=on-failure

[Install]
WantedBy=multi-user.target

Comments?