#!/usr/bin/env bash # # Copyright 2020 Liu Hongyu (eliuhy@163.com) # # 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. # set -e
prefix="demo" # pattern that names of deployment start with GRN="\e[32m" # green color YLW="\e[33m" # yellow color RED="\e[91m" # red color RST="\e[39m" # reset color # --- common functions definition --- info() { echo -e "$GRN[INFO]$RST" $@ } warn() { echo -e "$YLW[WARN]$RST" $@ } fata() { echo -e "$RED[FATA]$RST" $@; exit 1 } has_command() { command -v $@ >/dev/null } # --- printhelp --- show_help() { echo -e " USAGE: ${GRN}${PROG}${RST}${YLW}start${RST}|${YLW}stop${RST} -n|--namespace <${YLW}namespace${RST}> " exit 0 } # --- Check dependencies and arguments --- pre_check() { has_command kubectl || fata "This script needs 'kubectl' installed on your computer." [ -n "$action" ] || fata "Need provide at least one action: start|stop" [[ $action =~ ^(start|stop)$ ]] || fata "Invalid action '$action'. Use one of the following actions: start|stop" [ -n "$namespace" ] || fata "Need provide namespace!" kubectl get ns | grep $namespace >/dev/null || fata "'$namespace' not found in current cluster." deployments=$(kubectl get deploy -n $namespace | grep ^$prefix | awk '{print $1}') }