You are viewing documentation for Kubernetes version: v1.21
Kubernetes v1.21 documentation is no longer actively maintained. The version you are currently viewing is a static snapshot. For up-to-date documentation, see the latest version.
Weave Net for NetworkPolicy
This page shows how to use Weave Net for NetworkPolicy.
Before you begin
You need to have a Kubernetes cluster. Follow the kubeadm getting started guide to bootstrap one.
Install the Weave Net addon
Follow the Integrating Kubernetes via the Addon guide.
The Weave Net addon for Kubernetes comes with a
Network Policy Controller
that automatically monitors Kubernetes for any NetworkPolicy annotations on all
namespaces and configures
iptables rules to allow or block traffic as directed by the policies.
Test the installation
Verify that the weave works.
Enter the following command:
kubectl get pods -n kube-system -o wide
The output is similar to this:
NAME READY STATUS RESTARTS AGE IP NODE weave-net-1t1qg 2/2 Running 0 9d 192.168.2.10 worknode3 weave-net-231d7 2/2 Running 1 7d 10.2.0.17 worknodegpu weave-net-7nmwt 2/2 Running 3 9d 192.168.2.131 masternode weave-net-pmw8w 2/2 Running 0 9d 192.168.2.216 worknode2
Each Node has a weave Pod, and all Pods are
2/2 READY. (
2/2 means that each Pod has
Once you have installed the Weave Net addon, you can follow the Declare Network Policy to try out Kubernetes NetworkPolicy. If you have any question, contact us at #weave-community on Slack or Weave User Group.