binaries: Only stop the kubelet service if it's active

[tstromberg]

Fixes #7567

[k8s-ci-robot]

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[codecov-io]

Codecov Report

Merging #7568 into master will not change coverage by %.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master    #7568   +/-   ##
=======================================
  Coverage   36.49%   36.49%           
=======================================
  Files         147      147           
  Lines        9109     9109           
=======================================
  Hits         3324     3324           
  Misses       5398     5398           
  Partials      387      387           

Impacted Files	Coverage Δ
pkg/minikube/bootstrapper/bsutil/binaries.go	5.00% <0.00%> (ø)

[medyagh]

/ok-to-test

[minikube-pr-bot]

kvm2 Driver
docker Driver

[medyagh]

the issue that PR is trying to solve made me think, are we tranferring the binaries when preload is not available and the container run-time is containerd ?

$ make && ./out/minikube start --container-runtime=containerd --docker-opt containerd=/var/run/containerd/containerd.sock --apiserver-port=8444 --driver=docker  --kubernetes-version=v1.18.0
go build  -tags "container_image_ostree_stub containers_image_openpgp go_getter_nos3 go_getter_nogcs" -ldflags="-X k8s.io/minikube/pkg/version.version=v1.9.2 -X k8s.io/minikube/pkg/version.isoVersion=v1.9.0 -X k8s.io/minikube/pkg/version.isoPath=minikube/iso -X k8s.io/minikube/pkg/version.gitCommitID="ded8273a2eadd3aa562177e52373cbfe725eb9d9-dirty"" -o out/minikube k8s.io/minikube/cmd/minikube

😄  minikube v1.9.2 on Darwin 10.13.6
✨  Using the docker driver based on user configuration
👍  Starting control plane node minikube in cluster minikube
🚜  Pulling base image ...
🔥  Creating Kubernetes in docker container with (CPUs=2) (2 available), Memory=4000MB (7964MB available) ...
📦  Preparing Kubernetes v1.18.0 on containerd 1.3.2 ...
    ▪ opt containerd=/var/run/containerd/containerd.sock
    ▪ kubeadm.pod-network-cidr=10.244.0.0/16
E0409 20:18:31.307780   43209 binaries.go:65] unable to stop kubelet: sudo systemctl stop -f kubelet: exit status 5
stdout:

stderr:
Failed to stop kubelet.service: Unit kubelet.service not loaded.
🌟  Enabling addons: default-storageclass, storage-provisioner
🏄  Done! kubectl is now configured to use "minikube"