如何在TKE/EKS集群对容器上传下载大文件

[niewx@VM-0-4-centos ~]$ kubectl cp -h
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, 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

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).

[niewx@VM-0-4-centos ~]$ ll tke.config
-rw-rw-r-- 1 niewx niewx 5476 Apr  4 12:12 tke.config
[niewx@VM-0-4-centos ~]$ ll -lh nps
-rwxr-xr-x 1 niewx niewx 12M Apr  8  2021 nps
[niewx@VM-0-4-centos ~]$ k get pod  | grep debug
debug-pod-7f8b7f7f67-k859n        1/1     Running   0          96s

[niewx@VM-0-4-centos ~]$ kubectl --kubeconfig=tke.config cp /home/weixnie/nps weixnie/debug-pod-7f8b7f7f67-k859n:/tmp/
[niewx@VM-0-4-centos ~]$ kubectl --kubeconfig=tke.config exec -it debug-pod-7f8b7f7f67-k859n sh
kubectl exec [POD] [COMMAND] is DEPRECATED and will be removed in a future version. Use kubectl kubectl exec [POD] -- [COMMAND] instead.
/app # ls -alh /tmp
total 12M
drwxrwxrwt 1 root root 4.0K Apr  4 04:22 .
drwxr-xr-x 1 root root 4.0K Apr  4 04:20 ..
-rwxr-xr-x 1 1000 1000  12M Apr  4 04:24 nps
[niewx@VM-0-4-centos ~]$ kubectl --kubeconfig=tke.config cp weixnie/debug-pod-7f8b7f7f67-k859n:/tmp/nps /home/niewx/nps-cp
tar: removing leading '/' from member names
[niewx@VM-0-4-centos ~]$ ll -alh /home/niewx/nps-cp
-rw-rw-r-- 1 niewx niewx 12M Apr  4 12:28 /home/niewx/nps-cp

[niewx@VM-0-4-centos ~]$ kubectl --kubeconfig=tke.config cp /home/niewx/yaml  weixnie/debug-pod-7f8b7f7f67-k859n:/tmp/
[niewx@VM-0-4-centos ~]$ kubectl exec -it debug-pod-7f8b7f7f67-k859n sh
kubectl exec [POD] [COMMAND] is DEPRECATED and will be removed in a future version. Use kubectl kubectl exec [POD] -- [COMMAND] instead.
/app # cd /tmp/
/tmp # ls -al
total 12032
drwxrwxrwt 1 root root     4096 Apr  4 05:06 .
drwxr-xr-x 1 root root     4096 Apr  4 04:20 ..
-rwxr-xr-x 1 1000 1000 12308480 Apr  4 04:24 nps
drwxr-xr-x 2 root root     4096 Apr  4 05:06 yaml

[niewx@VM-0-4-centos ~]$ kubectl --kubeconfig=tke.config cp weixnie/debug-pod-7f8b7f7f67-k859n:/tmp/yaml  /home/niewx/yaml/test
tar: removing leading '/' from member names
[niewx@VM-0-4-centos yaml]$ ls -al /home/niewx/yaml | grep test
drwxr-xr-x  2 niewx niewx 4096 Apr  4 13:11 test

tar: removing leading '/' from member names