Bpfd-Heart-K8s-Demo

Create Kind Cluster

kind create cluster --name=test-bpfd

Deploy Cert manager

kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.11.0/cert-manager.yaml

Deploy bpfd Crds

kubectl apply -f  https://github.com/bpfd-dev/bpfd/releases/download/v0.2.1/bpfd-crds-install-v0.2.1.yaml

Deploy bpfd-operator

kubectl apply -f https://github.com/bpfd-dev/bpfd/releases/download/v0.2.1/bpfd-operator-install-v0.2.1.yaml

Configure Xdp Pass program to drop on proceed-on, Specifically add the following to the xdpProgram's Spec

 proceedon:
 - drop

Deploy Xdp Pass program

kubectl apply -f - <<EOF
apiVersion: bpfd.io/v1alpha1
kind: XdpProgram
metadata:
  labels:
    app.kubernetes.io/name: xdpprogram
  name: xdp-pass-all-nodes
spec:
  sectionname: pass
  # Select all nodes
  nodeselector: {}
  interfaceselector:
    primarynodeinterface: true
  priority: 0
  proceedon:
    - drop
  bytecode:
    image:
      url: quay.io/bpfd-bytecode/xdp_pass:latest
EOF

Deploy the xdp counter program and userspace application

kubectl apply -f https://github.com/bpfd-dev/bpfd/releases/download/v0.2.1/go-xdp-counter-install-v0.2.1.yaml

Ensure Programs are deployed

kubectl get xdpprogram -o wide
NAME                     SECTIONNAME   NODESELECTOR   PRIORITY   INTERFACESELECTOR               PROCEEDON
go-xdp-counter-example   stats         {}             55         {"primarynodeinterface":true}   ["pass","dispatcher_return"]
xdp-pass-all-nodes       pass          {}             0          {"primarynodeinterface":true}   ["drop"]

Verify no packets are being counted by the counter program

kubectl logs go-xdp-counter-ds-czlvx -n go-xdp-counter
2023/05/10 03:41:50 0 packets received
2023/05/10 03:41:50 0 bytes received

2023/05/10 03:41:53 0 packets received
2023/05/10 03:41:53 0 bytes received
...

Edit the Xdp Pass program to have a higher priority then the counter program, Specifically edit the priority field of the Spec to 60

priority: 60

Verify that packets are now being counted by the counter program

kubectl logs go-xdp-counter-ds-czlvx -n go-xdp-counter
2023/05/10 03:42:23 0 packets received
2023/05/10 03:42:23 0 bytes received

2023/05/10 03:42:26 6 packets received
2023/05/10 03:42:26 1386 bytes received

2023/05/10 03:42:29 70 packets received
2023/05/10 03:42:29 30654 bytes received

2023/05/10 03:42:32 203 packets received
2023/05/10 03:42:32 40111 bytes received
...

Clean everything up

kubectl delete xdpprogram xdp-pass-all-nodes
kubectl delete -f https://github.com/bpfd-dev/bpfd/releases/download/v0.2.0/go-xdp-counter-install-v0.2.0.yaml

astoycos/Demo.md