Shell script for backup kubernetes everything by namespace

kubernetes_backup.sh

namespaces=("namespace_a" "namespace_b")

for n in "${namespaces[@]}"
do
  echo "Process for namespace=${n}"

  # Backup kubernetes namespace
  echo "Backup namespace"
  kubectl get namespaces "${n}" -o yaml > "ns-${n}.yaml"

  # Backup kubernetes deployment
  echo "Backup deployment"
  kubectl get deployment -n "${n}" -o yaml > "deployment-${n}.yaml"

  # Backup kubernetes service
  echo "Backup services"
  kubectl get services -n "${n}" -o yaml > "svc-${n}.yaml"

  # Backup kubernetes ingress
  echo "Backup ingress"
  kubectl get ingress -n "${n}" -o yaml > "ingress-${n}.yaml"

  # Backup kubernetes secret
  echo "Backup secret"
  kubectl get secret -n ${n} -o yaml > "secret-${n}.yaml"
done