Jumpjob: Get a psuedo-shell on a kubernetes node via a pod.

jumpjob.yaml

# Usage:
# kubctl apply -f jumpjob.yaml
# Wait until pod is running and then:
# kubectl exec -it $(kubectl get pod -l job-name=jumpjob -o jsonpath='{.items[0].metadata.name}') /bin/bash
apiVersion: batch/v1
kind: Job
metadata:
  name: jumpjob
spec:
  template:
    spec:
      hostNetwork: true
      hostPID: true
      containers:
      - name: jump
        image: ubuntu
        command: ["/bin/sleep",  "12h"]
        securityContext:
          privileged: true
        volumeMounts:
        - mountPath: /mnt/hostroot
          name: hostroot
      restartPolicy: Never
      volumes:
      - name: hostroot
        hostPath:
            path: /

node root filesystem available at /mnt/hostroot in this configuration. If you want to target which node the job runs on, use nodeAffinity: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity