#!/bin/bash -li

app=$1

ELASTICSEARCH_BIN_PATH=/opt/software/elastic/elasticsearch-6.1.1/bin
LOGSTASH_BIN_PATH=/opt/software/elastic/logstash-6.1.1/bin
KIBANA_BIN_PATH=/opt/software/elastic/kibana-6.1.1-linux-x86_64/bin
FILEBEAT_PATH=/opt/software/elastic/filebeat-6.1.1-linux-x86_64


# 检查脚本输入参数
checkInput() {
  if [ "${app}" == "" ]; then
    echo "请输入脚本参数：name"
    echo "    name: 要启动的进程关键字（必填）。可选值：elasticsearch|logstash|kibana|filebeat"
    echo "例：./shutdown.sh logstash"
    exit 0
  fi

  if [ "${app}" != "elasticsearch" ] && [ "${app}" != "logstash" ] && [ "${app}" != "kibana" ] && [ "${app}" != "filebeat" ]; then
    echo "name 输入错误"
    echo "可选值：elasticsearch|logstash|kibana|filebeat"
    exit 0
  fi
}

# 检查文件是否存在，不存在则退出脚本
checkFileExist() {
  if [ ! -f "$1" ]
  then
    echo "关键文件 $1 找不到，脚本执行结束"
    exit 0
  fi
}

startup() {
  if [ "${app}" == "elasticsearch" ]; then
    checkFileExist ${ELASTICSEARCH_BIN_PATH}/elasticsearch
    nohup sh ${ELASTICSEARCH_BIN_PATH}/elasticsearch >>${ELASTICSEARCH_BIN_PATH}/nohup.out 2>&1 &
  elif  [ "${app}" == "logstash" ]; then
    checkFileExist ${LOGSTASH_BIN_PATH}/logstash
    nohup sh ${LOGSTASH_BIN_PATH}/logstash -f ${LOGSTASH_BIN_PATH}/logstash-input-tcp.conf >>${LOGSTASH_BIN_PATH}/nohup.out 2>&1 &
  elif  [ "${app}" == "kibana" ]; then
    checkFileExist ${KIBANA_BIN_PATH}/kibana
    nohup sh ${KIBANA_BIN_PATH}/kibana >> ${KIBANA_BIN_PATH}/nohup.out 2>&1 &
  elif  [ "${app}" == "filebeat" ]; then
    checkFileExist ${FILEBEAT_PATH}/filebeat
    touch ${FILEBEAT_PATH}/nohup.out
    nohup ${FILEBEAT_PATH}/filebeat -e -c ${FILEBEAT_PATH}/filebeat.yml -d "publish" >> ${FILEBEAT_PATH}/nohup.out 2>&1 &
  fi
}

##############################__MAIN__########################################
checkInput
startup