kubectl cp

• https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#cp

kubectl cp

kubectl cp youfile.txt remotepod:/yourdestinationdata

kubectl cp --help
Copy files and directories to and from containers.

Examples:
  # !!!Important Note!!!
  # Requires that the 'tar' binary is present in your container
  # image.  If 'tar' is not present, 'kubectl cp' will fail.
  #
  # For advanced use cases, such as symlinks, wildcard expansion or
  # file mode preservation, consider using 'kubectl exec'.

  # Copy /tmp/foo local file to /tmp/bar in a remote pod in namespace <some-namespace>
  tar cf - /tmp/foo | kubectl exec -i -n <some-namespace> <some-pod> -- tar xf - -C /tmp/bar

  # Copy /tmp/foo from a remote pod to /tmp/bar locally
  kubectl exec -n <some-namespace> <some-pod> -- tar cf - /tmp/foo | tar xf - -C /tmp/bar

  # Copy /tmp/foo_dir local directory to /tmp/bar_dir in a remote pod in the default namespace
  kubectl cp /tmp/foo_dir <some-pod>:/tmp/bar_dir

  # Copy /tmp/foo local file to /tmp/bar in a remote pod in a specific container
  kubectl cp /tmp/foo <some-pod>:/tmp/bar -c <specific-container>

  # Copy /tmp/foo local file to /tmp/bar in a remote pod in namespace <some-namespace>
  kubectl cp /tmp/foo <some-namespace>/<some-pod>:/tmp/bar

  # Copy /tmp/foo from a remote pod to /tmp/bar locally
  kubectl cp <some-namespace>/<some-pod>:/tmp/foo /tmp/bar

Options:
    -c, --container='':
        Container name. If omitted, use the kubectl.kubernetes.io/default-container annotation for
        selecting the container to be attached or the first container in the pod will be chosen

    --no-preserve=false:
        The copied file/directory's ownership and permissions will not be preserved in the
        container

    --retries=0:
        Set number of retries to complete a copy operation from a container. Specify 0 to disable
        or any negative value for infinite retrying. The default is 0 (no retry).

Usage:
  kubectl cp <file-spec-src> <file-spec-dest> [options]

Use "kubectl options" for a list of global command-line options (applies to all commands).

kubectl apply -f

https://stackoverflow.com/questions/50375826/kubernetes-how-to-download-a-persistentvolumes-content

 apiVersion: v1
kind: Pod
metadata:
  name: myalpinewithvolume
spec:
  containers:
  - name: alpine
    image: alpine:latest
    command: ['ash']
    tty: true
    stdin: true
    volumeMounts:
    - name: myvolume
      mountPath: /myvolume
  volumes:
  - name: myvolume
    persistentVolumeClaim:
      claimName: myPVCtoMount

kubectl cp myalpinedataaccess:/data data/
tar: removing leading '/' from member names

kubectl exec <pod_name> -- ls -la /

kubectl exec myalpine -- df -kh
mount | grep ^/dev/ | grep -v /etc | awk '{print $3}'

See also

• kubectl cp
• cp, dd, sftp, scp, rsync, casync, mv, fio, ln, docker cp, kubectl cp, minikube cp, multipass transfer, Copy-Item, Xcopy
• kubectl: [ cp | config | create | delete | edit | explain | apply | exec | get | set | drain | uncordon | rolling-update | rollout | logs | run | auth | label | annotate | version | top | diff | debug | replace | describe | port-forward | proxy | scale | rollout | api-resources | expose deployment | expose | patch | attach | get endpoints | ~/.kube/config | kubectl logs --help | kubectl --help, kubectl-convert, kubectl autoscale, kubectl.kubernetes.io