added healthcheck on /healthz

Dockerfile

@@ -10,3 +10,6 @@ RUN curl --location https://dl.k8s.io/$KUBERNETES_VERSION/kubernetes-node-linux-
 
 #RUN apt-get install --yes --no-install-recommends strace
 #ENTRYPOINT ["strace", "-f"]
+
+# --healthz-port
+HEALTHCHECK CMD [ "$(curl --silent --show-error http://localhost:10248/healthz)" = "ok" ] || exit 1

docker-compose.yml

@@ -4,7 +4,7 @@ services:
   kubelet:
     build: .
     image: fphammerle/kubelet
-    command: kubelet
+    command: kubelet --container-runtime docker
     volumes:
     - '/var/run/docker.sock:/var/run/docker.sock'
     userns_mode: host