May be I am missing some basic here. My pod failing at executing the shell command

apiVersion: apps/v1
kind: ReplicaSet
metadata:
  name: redis-rs01
  labels:
    name: redis-rs01
    run: redis-rs01
    app: redis
spec:
  replicas: 3
  selector:
    matchLabels:
      app: redis
  template:
    metadata:
      name: redis
    labels:
      app: redis
    spec:
      volumes:
      - name: vol001
        emptyDir: {}
      containers:
      - name: redis
        image: redis
        ports:
        - containerPort: 6739
        env:
          - name: MY_NODE_NAME
            valueFrom:
              fieldRef:
                fieldPath: spec.nodeName
        volumeMounts:
        - name: vol001
          mountPath: /tmp
        command: ["/bin/sh -c 'mkdir /tmp && touch /tmp/date.log'"]

From describe I am getting error as below

Warning  Failed     14s (x3 over 32s)  kubelet            

Error: failed to create containerd task: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: 
exec: "/bin/sh -c 'mkdir /tmp && touch /tmp/date.log'": stat /bin/sh -c 'mkdir /tmp && touch /tmp/date.log': no such file or directory: unknown

Any suggestions, much appreciated.

Thank you.

CodePudding user response：

You need to format your command to separate the arguments properly, right now your entire shell command is being perceived as a "file that is a shell script" to be executed with "sh -c". And since there is no file named mkdir /tmp && touch /tmp/date.log the shell returns an error.

You can fix this as follows:

command: ["/bin/sh", "-c", "mkdir /tmp && touch /tmp/date.log"]

CodePudding user response：

You need to pass bin/sh & -c as separate values in the command list like this:

command: ["/bin/sh", "-c", "mkdir /tmp && touch /tmp/date.log"]