cka questions sidecar

cka-multipod.yaml

apiVersion: v1
kind: Pod
metadata:
  name: multi
spec:
  containers:
  - name: web
    image: nginx:alpine
    env:
      - name: NODE_NAME
        valueFrom:
          fieldRef:
            fieldPath: spec.nodeName
  - name: main
    image: busybox:1.28
    command: ["/bin/sh","-c","while true; do echo $(date) >> /logpath/data.log; sleep 1; done;"]
    volumeMounts:
    - mountPath: /logpath
      name: log
  - name: sidecar
    image: busybox:1.28
    command: ["/bin/sh","-c","tail -f /logpath/data.log"]
    volumeMounts:
    - mountPath: /logpath
      name: log
  volumes:
  - name: log
    emptyDir: {}

public