Extract certificates from kubectl config

get_kubectl_certs.sh

#!/bin/bash

CKD_KEY="client-key-data"
CCD_KEY="client-certificate-data"
CAD_KEY="certificate-authority-data"

json=$(kubectl config view --raw -o json)

#- Retrieve Certificates and Keys for all contexts
echo "$json" | jq -c '.contexts[].context' | while read line
do
  user=$(echo "$line" | jq '.user')
  cluster=$(echo "$line" | jq '.cluster')
  fname=$(echo "$cluster" | sed -e 's/\"//g')
  echo "$json" | jq ".users[] | select(.name == $user) | .user.\"$CKD_KEY\"" | sed -e 's/\"//g' | base64 -D > "$fname-$CKD_KEY.key"
  echo "$json" | jq ".users[] | select(.name == $user) | .user.\"$CCD_KEY\"" | sed -e 's/\"//g' | base64 -D > "$fname-$CCD_KEY.pem"
  echo "$json" | jq ".clusters[] | select(.name == $cluster) | .cluster.\"$CAD_KEY\"" | sed -e 's/\"//g' | base64 -D > "$fname-$CAD_KEY.pem"
done