Script for one-off pod to mount a PVC

attach.sh

#!/bin/bash

set -eo pipefail

NAMESPACE=$1
PVC=$2

if [ "$#" -ne 2 ]; then
  echo "Usage: $0 <namespace> <pvc-name>"
  exit 1
fi


kubectl run --rm -n $NAMESPACE --attach=true -i attach-${PVC} --overrides='
{
  "spec": {
    "containers": [
      {
        "name": "attach",
        "image": "debian:stretch-slim",
        "workingDir": "/attached",
        "command": ["bash"],
        "stdin": true,
        "stdinOnce": true,
        "tty": true,
        "volumeMounts": [
          { "mountPath": "/attached", "name": "attached", "readOnly": false }
        ]
      }
    ],
    "restartPolicy": "Never",
    "volumes": [
      { "name": "attached", "persistentVolumeClaim": {"claimName": "'${PVC}'" } }
    ]
  }
}
'  --image=debian:stretch-slim --restart=Never