Add script for waiting for all pods to be running (#349)

Author: sebrandon1

scripts/wait-for-all-pods-running.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# Get a list of all namespaces
+namespaces=$(kubectl get ns --no-headers | awk '{ print $1 }')
+
+# Wait for all pods in every namespace to be running
+for namespace in $namespaces; do
+	echo "Waiting for pods in namespace $namespace to be running..."
+	while [ "$(kubectl get pods --field-selector=status.phase=Running -n "$namespace" | wc -l)" != "$(kubectl get pods -n "$namespace" | wc -l)" ]; do
+		sleep 1
+	done
+done
+
+# All pods in all namespaces are now running
+echo "All pods in all namespaces are running!"