1. 准备阶段

•   安装包下载：下载链接

     注意，zookeeper3.5版本以后需要下载带bin的安装包，不带bin的是源代码，部署完成后启动会报错：Could not find or load main class org.apache.zookeeper.server.quorum.QuorumPeerMain

• 脚本复制：修改脚本中参数后拷贝脚本，将下面的脚本内容复制，在虚拟机的任意路径下执行命令vim zookeeper_install.sh -> 按下键盘的Inster键 ->鼠标右键粘贴或使用键盘上的shift+Insert组合快捷键粘贴->按键盘ESC键->输入:wq!
• 执行脚本安装zookeeper：sh zookeeper_install.sh install
• 执行脚本启动zookeeper：sh zookeeper_install.sh start

2. 脚本

#!/usr/bin/env bash
#######################################
# This shell is for manager ZOOKEEPER
# Author: Coline
# Date: 2020/02/27 00:17
#######################################
readonly SCRIPT_PATH=$(cd `dirname $0`; pwd)
SHELL_NAME=$0
ACTION=$1
CURRENT_USER=`whoami`


# declare where the install package
readonly INSTALL_PACKAGE_WAY=
# declare the install way
readonly INSTALL_WAY=
# declare the zookeeper owner
readonly USER=
# declare the zookeeper owner group
readonly USER_GROUP=
# zookeeper data path
readonly ZOOKEEPER_DATA_DIR=
# zookeeper log path
readonly ZOOKEEPER_LOG_DIR=

function usage() {
    echo "Usage: $SHELL_NAME {start|stop|restart|install|uninstall}"
    exit 2
}

function log_info() {
    echo "[$(date -d today +"%Y-%m-%d %H:%M:%S %:::z")] $1"
}

function log_error() {
    echo -e "[$(date +"%Y-%m-%d %H:%M:%S %Z%:z")] [ERROR] $* \n"
    exit 1

}

function check_result()
{
    local ret_code=$1
    shift
    local error_msg=$*
    if [[ ${ret_code} -ne 0 ]]; then
        log_error ${error_msg}
    fi
}

function normal_check() {
  # check current director whether have zookeeper package
  if [[ ! -f ${INSTALL_PACKAGE_WAY} ]]; then
    log_error "pleas check whether install package exists"
  fi

  # check param whether empty
  if [[ -z ${INSTALL_WAY} ]] || [[ -z ${USER} ]] || [[ -z ${USER_GROUP} ]] || [[ -z ${ZOOKEEPER_DATA_DIR} ]] || [[ -z ${ZOOKEEPER_LOG_DIR} ]]; then
    log_error "param can not be empty"
  fi
}

# do something before install
function pre_install(){
  # make install way
  mkdir -p ${INSTALL_WAY}/install

  #create group ${USER}
  grep "^${USER_GROUP}" /etc/group &> /dev/null
  if [[ $? -ne 0 ]]; then
    log_info "add user group"
    groupadd ${USER_GROUP}
  fi

  #create user group
  id ${USER} &> /dev/null
  if [[ $? -ne 0 ]]; then
    log_info "add user"
    useradd -g ${USER_GROUP} ${USER}
    chage -M 99999 ${USER}
  fi
}

# do install job
function install_zookeeper(){
  # unzip the package to install way
  tar -zxvf ${INSTALL_PACKAGE_WAY} -C ${INSTALL_WAY}/install
}

function post_install() {
  # create ln of zookeeper
  local zookeeper_dir=$(ls -lt ${INSTALL_WAY}/install|grep zookeeper|head -1|awk '{print $9}')
  ln -s install/${zookeeper_dir} ${INSTALL_WAY}/zookeeper

  cp -p ${INSTALL_WAY}/zookeeper/conf/zoo_sample.cfg ${INSTALL_WAY}/zookeeper/conf/zoo.cfg
  mkdir -p ${ZOOKEEPER_DATA_DIR}
  mkdir -p ${ZOOKEEPER_LOG_DIR}
  if [[ -n $(cat ${INSTALL_WAY}/zookeeper/conf/zoo.cfg |grep dataDir) ]] ;then
    sed -i "s/^dataDir=.*/dataDir=${ZOOKEEPER_DATA_DIR//\//\\/}/g" ${INSTALL_WAY}/zookeeper/conf/zoo.cfg
  else
    echo "dataDir=${ZOOKEEPER_DATA_DIR}" >> ${INSTALL_WAY}/zookeeper/conf/zoo.cfg
  fi

  if [[ -n $(cat ${INSTALL_WAY}/zookeeper/conf/zoo.cfg |grep dataLogDir) ]] ;then
    sed -i "s/^dataLogDir=.*/dataLogDir=${ZOOKEEPER_LOG_DIR//\//\\/}/g" ${INSTALL_WAY}/zookeeper/conf/zoo.cfg
  else
    echo "dataLogDir=${ZOOKEEPER_LOG_DIR}" >> ${INSTALL_WAY}/zookeeper/conf/zoo.cfg
  fi

  # change the owner of dir
  chown -R ${USER}:${USER_GROUP} ${INSTALL_WAY}
  chown -R ${USER}:${USER_GROUP} ${ZOOKEEPER_DATA_DIR}
  chown -R ${USER}:${USER_GROUP} ${ZOOKEEPER_LOG_DIR}
}

function install() {
  log_info "------------normal_check------------"
  normal_check
  check_result $? "normal_check failed."
  log_info "normal_check success"

  log_info "------------pre_install-------------"
  pre_install
  check_result $? "pre_install failed."
  log_info "pre_install success"

  log_info "------------install_zookeeper-------------"
  install_zookeeper
  check_result $? "install_zookeeper failed."
  log_info "install_zookeeper success"

  log_info "------------post_install-------------"
  post_install
  check_result $? "post_install failed."
  log_info "post_install success"

}

# uninstall zookeeper
function uninstall() {
  # delete the zookeeper install way
  rm -f ${INSTALL_WAY}/zookeeper
  rm -rf ${INSTALL_WAY}/install/*zookeeper*
}

# start zookeeper
function start() {
  local zookeeper_pid=$(ps -ef|grep zookeeper|grep -vwE "grep|vi|vim|tail|cat|sh"|awk '{print $2}')
  if [[ -n ${zookeeper_pid} ]] ;then
    log_info "zookeeper has been start"
    return 0
  fi

  if [[ ${CURRENT_USER} = ${USER} ]]; then
    source /etc/profile && nohup ${INSTALL_WAY}/zookeeper/bin/zkServer.sh start >> ${ZOOKEEPER_LOG_DIR}/zookeeper_start.log 2>&1 &
  else
    su - ${USER} -c "source /etc/profile && nohup ${INSTALL_WAY}/zookeeper/bin/zkServer.sh start >> ${ZOOKEEPER_LOG_DIR}/zookeeper_start.log 2>&1 &"
  fi
}

# stop zookeeper
function stop() {
  ${INSTALL_WAY}/zookeeper/bin/zkServer.sh stop
  local zookeeper_pid=$(ps -ef|grep zookeeper|grep -vwE "grep|vi|vim|tail|cat|sh"|awk '{print $2}')
  if [[ -n ${zookeeper_pid} ]] ;then
    log_info "zookeeper pid still exists pid= ${zookeeper_pid}"
    kill -9 ${zookeeper_pid}
  fi
}

# check zookeeper status
function check_status() {
  ${INSTALL_WAY}/zookeeper/bin/zkServer.sh status
}

case "$ACTION" in
    start)
        start
    ;;
    stop)
        stop
    ;;
    restart)
        stop
        start
    ;;
    check_status)
        check_status
    ;;
    install)
        install
    ;;
    uninstall)
        uninstall
    ;;
    *)
        usage
;;
esac

    参数修改：

    脚本命令：