[kube-up][scale-out] pod unable to access internet IP address

[h-w-chen]

What happened:
in 1tp, 1 rp w/ 1 worker scale-out cluster, pods of custom tenant are unable to access external internet hosts by their IP addresses (e.g. 8.8.8.8)

What you expected to happen:
pod is able to access internet hosts

How to reproduce it (as minimally and precisely as possible):
start kube-up 1+1x1 scale-out cluster, create custom tenent, and create nginx pod in the tenant;
using docker exec to run ping 8.8.8.8 inside nginx container

Anything else we need to know?:

Environment:

• Arktos version (use kubectl version):
• Cloud provider or hardware configuration:
• OS (e.g: cat /etc/os-release):
• Kernel (e.g. uname -a):
• Install tools: kube-up scale-out 1tp, 1rp w/ 1worker
• Network plugin and version (if this is a network-related bug):
• Others:

[Sindica]

May not be a show stopper for 130

[vinaykul]

Prefer to fix in 1/30 for Mizar. Two possible fixes:

1. XDP fix (more complex - not be feasible for 1/30 as it needs some redesign)
2. Fix in iptables (investigating this)