diff --git a/projects/kubernetes/boot.sh b/projects/kubernetes/boot.sh
index 2f69fc990..8c1dfc053 100755
--- a/projects/kubernetes/boot.sh
+++ b/projects/kubernetes/boot.sh
@@ -1,8 +1,7 @@
 #!/bin/bash -eu
-: ${KUBE_PORT_BASE:=2222}
+: ${KUBE_RUN_ARGS:=}
 if [ $# -eq 0 ] ; then
     img="kube-master"
-    port=${KUBE_PORT_BASE}
     data=""
     state="kube-master-state"
 elif [ $# -gt 1 ] ; then
@@ -19,7 +18,6 @@ elif [ $# -gt 1 ] ; then
     esac
     img="kube-node"
     name="node-${1}"
-    port=$((${KUBE_PORT_BASE} + $1))
     shift
     data="${*}"
     state="kube-${name}-state"
@@ -33,4 +31,4 @@ else
 fi
 set -x
 rm -rf "${state}"
-../../bin/linuxkit run -publish $port:22 -cpus 2 -mem 4096 -state "${state}" -disk size=4G -data "${data}" "${img}"
+../../bin/linuxkit run ${KUBE_RUN_ARGS} -cpus 2 -mem 4096 -state "${state}" -disk size=4G -data "${data}" "${img}"