This repository was archived by the owner on Mar 20, 2024. It is now read-only.
This repository was archived by the owner on Mar 20, 2024. It is now read-only.
CNI doesn't find link after reboot #56
Description
After rebooting my kubernetes nodes with the AF_XDP CNI, the pod doesn't work anymore.
During multus adding network process, post-reboot, I've got this error :
[...] error adding container to network "afxdp-network": cmdAdd(): failed to find device: Link not found
This node was running fine with AF_XDP before the reboot, for 5 days.
my configuration is as following. (note that for the moment I'm just doing some test, this is not a production node)
daemon.set
apiVersion: v1
kind: ConfigMap
metadata:
name: afxdp-dp-config
namespace: kube-system
data:
config.json: |
{
"logLevel":"debug",
"logFile":"afxdp-dp.log",
"pools":[
{
"name":"myPool",
"UdsTimeout":-1,
"mode":"primary",
"devices":[
{
"name":"enp2s0"
}
],
"drivers":[
{
"name":"virtio_net",
"ExcludeDevices":[
{
"name":"enp1s0"
}
]
}
]
}
]
}
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: afxdp-device-plugin
namespace: kube-system
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
[...etc, this is the classic one]
My network attach definition
apiVersion: "k8s.cni.cncf.io/v1"
kind: NetworkAttachmentDefinition
metadata:
name: afxdp-network
annotations:
k8s.v1.cni.cncf.io/resourceName: afxdp/myPool
spec:
config: '{
"cniVersion": "0.3.0",
"type": "afxdp",
"mode": "primary",
"logFile": "afxdp-cni.log",
"logLevel": "debug",
"ipam": {
"type": "whereabouts",
"range": "10.99.99.0/24"
}
}'
the deployment of the pod
apiVersion: apps/v1
kind: Deployment
metadata:
name: afxdp-deployment
spec:
replicas: 1
selector:
matchLabels:
app: afxdp
template:
metadata:
labels:
app: afxdp
annotations:
k8s.v1.cni.cncf.io/networks: kube-system/afxdp-network
spec:
containers:
- name: afxdptest
image: travelping/nettools
imagePullPolicy: IfNotPresent
command: ["tail", "-f", "/dev/null"]
resources:
requests:
afxdp/myPool: '1'
limits:
afxdp/myPool: '1'
securityContext:
privileged: true
I've tried to remove multus, whereabout and all the files concerned by AF_XDP. It still doesn't work.
note that libbpf is installed in my machine, and sysctl is configure permanently with the following:
sysctl kernel.unprivileged_bpf_disabled=0
sysctl net.core.bpf_jit_enable=1
Am I missing a point in the use of this CNI ?
thank for you help !