ONE Kubernetes appliance and ip forwarding on a node - bug or feature

Development
1

Hi!

I’ve installed a Kubernetes Appliance from the ONE Marketplace and found out that by default after installing any pod within one namespace can’t reach any pod in other namespace as well as Internet. Even coredns pod from kude-system can’t get DNS data from Internet.

I’ve found that by default node OS has

net.ipv4.ip_forward=0
net.ipv6.conf.all.forwarding=0

After sysctl values changes routing between interfaces starts to work.

Is it a bug or feature? Should I make a bug report somewhere?

2

Hi,

yes, you are right, there should be enabled forwarding - currently this and some other small fix will be provided in the update for the appliance to pass kubernetes conformance test.

Thank you for your report and sorry for delayed reply

-osp-

3

Hi again,

the appliance was updated - if you wish to try it out:

Thank you for your support

-osp-

1 Like