77 lines
1.6 KiB
Bash
Executable File
77 lines
1.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2019 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -o errexit
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set -o nounset
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set -o pipefail
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BINS=(
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kube-apiserver
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kube-controller-manager
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kube-proxy
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kube-scheduler
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kubectl
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kubelet
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)
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function array_contains() {
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local search="$1"
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local element
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shift
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for element; do
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if [[ "${element}" == "${search}" ]]; then
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return 0
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fi
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done
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return 1
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}
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function print_usage() {
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cat <<EOF
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Usage:
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$(basename "$0") [command]
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Available Commands:
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help Help about any command
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kube-apiserver
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kube-controller-manager
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kube-proxy
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kube-scheduler
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kubectl kubectl controls the Kubernetes cluster manager
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kubelet
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EOF
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exit 0
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}
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function main() {
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if [[ "$#" -lt 1 || "${1:-}" == "--help" || "${1:-}" == "help" ]]; then
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print_usage
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fi
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if ! array_contains "$1" "${BINS[@]}"; then
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echo "$1: command not supported"
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print_usage
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fi
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command=${1}
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shift
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if ! command -v "${command}" &>/dev/null; then
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echo "${command}: command not found"
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exit 1
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fi
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exec "${command}" "${@}"
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}
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main "${@}"
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