cAdvisor : Could not configure a source for OOM detection - linux

Question

I have deployed cAdvisor DaemonSet on Kubernetes (EKS) with following manifest
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: cadvisor
namespace: kube-monitoring
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: cadvisor
rules:
- apiGroups: ['policy']
resources: ['podsecuritypolicies']
verbs: ['use']
resourceNames:
- cadvisor
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
name: cadvisor
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: cadvisor
subjects:
- kind: ServiceAccount
name: cadvisor
namespace: kube-monitoring
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: cadvisor
namespace: kube-monitoring
spec:
selector:
matchLabels:
name: cadvisor
template:
metadata:
labels:
name: cadvisor
spec:
serviceAccountName: cadvisor
containers:
- name: cadvisor
image: google/cadvisor:latest
resources:
requests:
memory: 400Mi
cpu: 400m
limits:
memory: 2000Mi
cpu: 800m
ports:
- name: http
containerPort: 8080
protocol: TCP
volumeMounts:
- name: rootfs
mountPath: /rootfs
readOnly: true
- name: var-run
mountPath: /var/run
readOnly: true
- name: sys
mountPath: /sys
readOnly: true
- name: docker
mountPath: /var/lib/docker
readOnly: true
- name: disk
mountPath: /dev/disk
readOnly: true
automountServiceAccountToken: false
terminationGracePeriodSeconds: 30
volumes:
- name: rootfs
hostPath:
path: /
- name: var-run
hostPath:
path: /var/run
- name: sys
hostPath:
path: /sys
- name: docker
hostPath:
path: /var/lib/docker
- name: disk
hostPath:
path: /dev/disk
---
But in the cAdvisor container logs I see following messages
W0608 16:00:47.238042 1 manager.go:349] Could not configure a source for OOM detection, disabling OOM events: open /dev/kmsg: no such file or directory
I can connect to cAdvisor UI at http://localhost:8080/containers/ without any issue.
What is wrong in this cAdvisor setup ?

Answer 1

I solved the same issue with
privileged: true