Kustomize installation script.

hack/install_kustomize.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+
+# Downloads the most recently released kustomize binary
+# to your current working directory.
+#
+# Fails if the file already exists.
+
+where=$PWD
+if [ -f $where/kustomize ]; then
+  echo "kustomize already exists.  Try: rm kustomize"
+  exit 1
+fi
+
+tmpDir=`mktemp -d`
+if [[ ! "$tmpDir" || ! -d "$tmpDir" ]]; then
+  echo "Could not create temp dir."
+  exit 1
+fi
+
+function cleanup {      
+  rm -rf "$tmpDir"
+}
+
+trap cleanup EXIT
+
+pushd $tmpDir >& /dev/null
+
+opsys=windows
+if [[ "$OSTYPE" == "linux-gnu" ]]; then
+  opsys=linux
+elif [[ "$OSTYPE" == "darwin"* ]]; then
+  opsys=darwin
+fi
+
+curl -s https://api.github.com/repos/kubernetes-sigs/kustomize/releases |\
+  grep browser_download |\
+  grep $opsys |\
+  cut -d '"' -f 4 |\
+  grep /kustomize/v |\
+  sort | tail -n 1 |\
+  xargs curl -O -L
+
+tar xzf ./kustomize_v*_${opsys}_amd64.tar.gz
+
+cp ./kustomize $where
+
+popd >& /dev/null
+
+./kustomize version
+
+echo kustomize installed to current directory.