#!/bin/bash

#author:  tmade
#version: 1.1

INTERFACE="ens18"
#CALIVERS="calico-v3.8.5.yaml"

echo ""
echo "Overview calico versions:"
echo ""
ls -al /home/kubernetes/calico

echo ""
read -p "Please enter the calico version you want to patch to (e. g. \"calico-v3.8.5.yaml\"): " CALIVERS
echo "Version: \"$CALIVERS\" will be modified!"
echo ""

grep -R 'value: "interface' ${CALIVERS}
#grep -R 'value: "interface' calico-v3.8.5.yaml
IFACESET=$(echo $?)

if [   ${IFACESET} = 0 ]
then
                echo "Interface already set - nothing todo"
else
                sed -i 's/value: "autodetect"/value: "autodetect"\n            - name: IP_AUTODETECTION_METHOD\n              value: "interface='${INTERFACE}'"/g' ${CALIVERS}
                echo "Interface set to \"${INTERFACE}\""
fi