Add toolbox script for kubernetes

bin/ktoolbox

@@ -0,0 +1,20 @@
+#!/bin/bash
+# set -ex
+name=toolbox-${USER}
+image='dlneintr/toolbox:latest'
+labels="app=toolbox,owner=${USER},cookie=0xdeadbeef"
+
+existing=$(kubectl get pod -l ${labels} --output='jsonpath={.items..metadata.name}')
+
+if [ "${existing}" == "" ]; then
+  kubectl run --image=${image} --image-pull-policy=Always --labels=${labels} ${name}
+fi
+
+for i in {1..10}; do
+  ready=$(kubectl get pod --field-selector=status.phase=Running -l ${labels} --output='jsonpath={.items..metadata.name}')
+  if [ "${ready}" != "" ]; then
+    exec kubectl exec -it ${ready} /bin/sh
+  fi
+  echo "Waiting for pod to be ready"
+  sleep 1
+done