#!/bin/bash

#author:  Thomas Roehm
#version: 1.3

echo ""
echo "You can get release info on \"https://github.com/NetApp/trident/releases\""
echo ""

VERSION="20.04.0"
HOME="/home/kubernetes/"
FILE="${HOME}trident-installer-${VERSION}.tar.gz"

if  [ -e $FILE ]
then
        echo "${FILE} exists, please check if trident is already up to date. Wrong version referenced in script!?"
        exit 1
else

        echo ""
        echo "patching trident..."
        echo ""
        sleep 3
        su - kubernetes -c "cat <<EOF | kubectl create -f -
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: trident-ontap-gold                               #name storage-klasse
provisioner: netapp.io/trident
parameters:
  backendType: "ontap-nas"
  #media: "ssd"
  provisioningType: "thin"
allowVolumeExpansion: true
reclaimPolicy: Delete
EOF"
        su - kubernetes -c "wget https://github.com/NetApp/trident/releases/download/v${VERSION}/trident-installer-${VERSION}.tar.gz -P ${HOME}"
        su - kubernetes -c "mv ~/trident-installer ~/trident-installer.old"
        su - kubernetes -c "tar -xzf trident-installer-${VERSION}.tar.gz"
        su - kubernetes -c "mkdir ~/trident-installer/setup"
        su - kubernetes -c "cp -a ~/trident-installer.old/setup/backend.json ~/trident-installer/setup/."
        su - kubernetes -c "~/trident-installer/tridentctl uninstall -n trident"
        su - kubernetes -c "~/trident-installer/tridentctl install -n trident"
        su - kubernetes -c "~/trident-installer/tridentctl -n trident create backend -f ~/trident-installer/setup/backend.json"
fi