/usr/sbin/iptables is mapped to container's iptables

[RShadowhand]

Describe the bug
/usr/sbin/iptables is mapped to container's iptables, so it adds iptables rules to container's, they aren't added to host's iptables, and so the routing does not work. I found a workaround by making it use /usr/sbin/iptables-legacy instead.

I think the solution would be to use a different base image.

To Reproduce
Steps to reproduce the behavior:

1. Create new server
2. See iptables rule not being added to host's iptables

Server:

• OS: Alpine 3.15