fabric-samples/test-network-k8s/scripts/prereqs.sh

#!/bin/bash
#
# Copyright IBM Corp All Rights Reserved
#
# SPDX-License-Identifier: Apache-2.0
#

# Double check that kind, kubectl, docker, and all required images are present.
function check_prereqs() {

  docker version > /dev/null
  if [[ $? -ne 0 ]]; then
    echo "No 'docker' binary available? (https://www.docker.com)"
    exit 1
  fi

  kind version > /dev/null
  if [[ $? -ne 0 ]]; then
    echo "No 'kind' binary available? (https://kind.sigs.k8s.io/docs/user/quick-start/#installation)"
    exit 1
  fi

  kubectl > /dev/null
  if [[ $? -ne 0 ]]; then
    echo "No 'kubectl' binary available? (https://kubernetes.io/docs/tasks/tools/)"
    exit 1
  fi

  jq --version > /dev/null
  if [[ $? -ne 0 ]]; then
    echo "No 'jq' binary available? (https://stedolan.github.io/jq/)"
    exit 1
  fi
}