fabric-samples/full-stack-asset-transfer-guide/infrastructure/sample-network/scripts/prereqs.sh

#!/bin/bash
#
# Copyright contributors to the Hyperledger Fabric Operator project
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# 	  http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

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

  set +e

  ${CONTAINER_CLI} version > /dev/null
  if [[ $? -ne 0 ]]; then
    echo "No '${CONTAINER_CLI}' binary available?"
    exit 1
  fi

  if [ "${CLUSTER_RUNTIME}" == "kind" ]; then
    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
  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

  peer version &> /dev/null
  if [[ $? -ne 0 ]]; then
    echo "No 'peer' binary available?"
    exit 1
  fi

  set -e
}