Tail systemd-networkd journal log from K8s Daemonset

k8s-systemd-networkd-journal-reader.yaml

apiVersion: apps/v1
kind: DaemonSet
metadata:
  annotations:
  labels:
    app: journal-reader
  name: journal-reader
  namespace: kube-system
spec:
  selector:
    matchLabels:
      app: journal-reader
  template:
    metadata:
      labels:
        app: journal-reader
    spec:
      containers:
      - name: default
        image: ubuntu:20.04
        command:
        - /bin/bash
        args:
        - -c
        - "apt update && apt install -y systemd && journalctl --no-tail -fu systemd-networkd"
        volumeMounts:
        - name: host-etc
          subPath: machine-id
          mountPath: /etc/machine-id
        - name: host-journal
          mountPath: /var/log/journal
      volumes:
      - name: host-etc
        hostPath:
          path: /etc
      - name: host-journal
        hostPath:
          path: /var/log/journal