| title | Known Issues |
|---|---|
| weight | 70 |
The Known Issues are updated periodically and designed to inform you about any issues that may not be immediately addressed in the next upcoming release.
Snap Docker
If you plan to use K3s with docker, Docker installed via a snap package is not recommended as it has been known to cause issues running K3s.
Iptables
If you are running iptables in nftables mode instead of legacy you might encounter issues. We recommend utilizing newer iptables (such as 1.6.1+) to avoid issues.
RootlessKit
Running K3s with RootlessKit is experimental and has several known issues.
Ufw
UFW firewall rules are evaluated prior to the kube-proxy rules, so traffic to cluster services can be blocked. Traffic from the service and pod networks should be allowed in ufw to ensure that the kube-proxy rules are evaluated. Given the default values, the following will allow traffic from those network through the ufw portion, before reaching the kube-proxy rules.
sudo ufw allow from 10.42.0.0/16 to any
sudo ufw allow from 10.43.0.0/16 to any