microk8s is sets iptables policy FORWARD to DROP on reboot

I created a fresh install of ubuntu 18.04 minimal on a vmware esxi 6.7u1 host. i checked iptables -S and got this output (truncated):

-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT

This is consistent, no matter how often i reboot. Then i installed microk8s and all looks fine:

robert@k:~$ sudo snap install microk8s --edge --classic
microk8s (edge) v1.13.1 from Canonical✓ installed
robert@k:~$ sudo iptables -S
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT
<trimmed>

However, after a reboot:

robert@k:~$ sudo iptables -S
[sudo] password for robert: 
-P INPUT ACCEPT
-P FORWARD DROP
-P OUTPUT ACCEPT
<trimmed>

I’ve attached the microk8s.inspect tarball as inspection-report-20181229_224350.tar.gz

[mnbf9rca]

Adding --iptables=false to /var/snap/microk8s/current/args/dockerd fixes it.

[illja96]

Adding --iptables=false to /var/snap/microk8s/current/args/dockerd fixes it.

This will no longer work cause new version of microk8s use containerd instead of dockerd