fix kustomize install

Signed-off-by: Ashutosh Kumar <sonasingh46@gmail.com>

Author: sonasingh46

.github/workflows/main.yml

@@ -75,9 +75,8 @@ jobs:
 
       - name: Configure Kustomize
         run: |
-          curl -s "https://raw.githubusercontent.com/\
-          kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"  | bash
-          echo "Kustomize Version"
+          chmod +x hack/install_kustomize.sh
+          ./hack/install_kustomize.sh /usr/local/bin/
           kustomize version
 
 

hack/install_kustomize.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# Downloads the most recently released kustomize binary
+# to your current working directory.
+#
+# Fails if the file already exists.
+
+where=$1
+if [ -f $where/kustomize ]; then
+  echo "A file named kustomize already exists (remove it first)."
+  exit 1
+fi
+
+tmpDir=`mktemp -d`
+if [[ ! "$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* ]]; then
+  opsys=linux
+elif [[ "$OSTYPE" == darwin* ]]; then
+  opsys=darwin
+fi
+
+echo "Downloading kustomize..."
+
+curl -s https://api.github.com/repos/kubernetes-sigs/kustomize/releases |\
+  grep browser_download |\
+  grep $opsys |\
+  cut -d '"' -f 4 |\
+  grep /kustomize/v |\
+  sort | tail -n 1 |\
+  xargs curl -s -O -L
+
+tar xzf ./kustomize_v*_${opsys}_amd64.tar.gz
+
+sudo cp ./kustomize $where
+
+popd >& /dev/null
+echo kustomize installed to $where