我的CD

作為一個(gè)獨(dú)立的工程師，時(shí)間是最寶貴的狡孔，搭建一個(gè)高效的產(chǎn)品發(fā)布環(huán)境能節(jié)省很多重復(fù)的時(shí)間懂诗。
　　現(xiàn)在有很多這樣的CD工具，可以管理較大的產(chǎn)品苗膝，對(duì)我來(lái)說(shuō)殃恒，學(xué)習(xí)成本太大，經(jīng)過仔細(xì)的考慮辱揭，我選擇使用shell腳本來(lái)實(shí)現(xiàn)簡(jiǎn)單的CD!

基本配置

基本配置

• 接下來(lái)就是安裝各種程序：lnmp离唐，java，tomcat问窃，maven亥鬓，git；
• 配置環(huán)境變量域庇；

還有一些每次發(fā)布版本都需要重復(fù)的工作嵌戈，比如：

• 部署java的war包；
• 重新啟動(dòng)tomcat的服務(wù)听皿；
  這些操作都比較簡(jiǎn)單熟呛，但是很耗時(shí)間，對(duì)于快節(jié)奏的版本更新產(chǎn)品來(lái)說(shuō)尉姨，是很大的資源浪費(fèi)庵朝。

經(jīng)過以上的思考，通過2天的時(shí)間編寫了一個(gè)shell如下腳本；實(shí)現(xiàn)了：

• 自動(dòng)安裝java和git環(huán)境
• 自動(dòng)拉取git上的最新代碼偿短，通過maven進(jìn)行遠(yuǎn)程的源碼編譯
• 自動(dòng)發(fā)布和備份產(chǎn)品工程包
• 自動(dòng)安裝nodejs環(huán)境 v4.5的版本
• 自動(dòng)安裝cnpm來(lái)使用淘寶的源下載node模塊
• 啟動(dòng)web控制臺(tái)來(lái)執(zhí)行指令（通過nodejs實(shí)現(xiàn)）

先創(chuàng)建一個(gè)目錄
$ mkdir -p /home/setups

#! /bin/sh
#定義顏色的變量
RED_COLOR='\E[1;31m'  #紅
GREEN_COLOR='\E[1;32m' #綠
YELOW_COLOR='\E[1;33m' #黃
BLUE_COLOR='\E[1;34m'  #藍(lán)
PINK='\E[1;35m'      #粉紅
RES='\E[0m'

# >>>>>>>>>>>>>>>>>>>>設(shè)置全局變量
# >>>>>>>>>>>>>>>>>> api代碼的目錄
# >>>>>>>>>>>>>>>>>> ci代碼庫(kù)目錄
# >>>>>>>>>>>>>>>>>> tomcat目錄
#清屏
clear

# 安裝文件的目錄
# 優(yōu)先從安裝文件目錄中下載
SETUP_DIR="/home/setups"

# ci 的工作目錄
CI_HOME_DIR="/home/ci/java"
CI_LIB_DIR="$CI_HOME_DIR/lib"
CI_TARGET_DIR="$CI_HOME_DIR/target"
CI_LOG_DIR="$CI_HOME_DIR/log"
CI_CONF_FILE="$CI_HOME_DIR/ci.conf"

# maven 的相關(guān)變量定義
MAVEN_VERSION="apache-maven-3.3.9"
MAVEN_TAR="$MAVEN_VERSION-bin.tar.gz"
MAVEN_DOWNLOAD_URI="http://mirrors.cnnic.cn/apache/maven/maven-3/3.3.9/binaries/$MAVEN_TAR"
MAVEN_DIR="$CI_LIB_DIR/$MAVEN_VERSION"

# tomcat的相關(guān)變量的定義
TOMCAT_VERSION="apache-tomcat-8.5.4"
TOMCAT_TAR="$TOMCAT_VERSION.tar.gz"
TOMCAT_DOWNLOAD_URI="http://mirrors.cnnic.cn/apache/tomcat/tomcat-8/v8.5.4/bin/$TOMCAT_TAR"
TOMCAT_HOME_DIR="$CI_LIB_DIR/$TOMCAT_VERSION"
TOMCAT_DEPLOY_DIR="$TOMCAT_HOME_DIR/webapps"
TOMCAT_PORT="8080"

# jdk的相關(guān)變量的定義
JAVA_VERSION="jdk1.8.0_102"
JAVA_TAR="jdk-8u102-linux-x64.tar.gz"
JAVA_DOWNLOAD_URI="http://download.oracle.com/otn-pub/java/jdk/8u102-b14/$JAVA_TAR"
JAVA_HOME_DIR="$CI_LIB_DIR/$JAVA_VERSION"

# 需要讀取相關(guān)的配置文件
if [ -f $CI_CONF_FILE ]; then
  TOMCAT_HOME_DIR=`grep 'TOMCAT_HOME=' $CI_CONF_FILE`
  TOMCAT_HOME_DIR=${TOMCAT_HOME_DIR#*=}
  TOMCAT_PORT=`grep 'TOMCAT_PORT=' $CI_CONF_FILE`
  TOMCAT_PORT=${TOMCAT_PORT#*=}
  TOMCAT_DEPLOY_DIR="$TOMCAT_HOME_DIR/webapps"
fi


# 項(xiàng)目名稱
PROJECT_NAME="yfoa"
# 項(xiàng)目的變量定義
PROJECT_GIT="https://git.oschina.net/***.git"
PROJECT_DIR="$CI_HOME_DIR/$PROJECT_NAME"
PROJECT_SOURCE_DIR=$PROJECT_DIR
PROJECT_TARGET_DIR="$PROJECT_SOURCE_DIR/target"
PROJECT_TARGET_VERSION_CODE=`date '+%m%d%H%M'`

# 定義相關(guān)的函數(shù)
# 返回 0 表示操作成功欣孤，小于 0 的所有返回值，均為執(zhí)行錯(cuò)誤

# 安裝操作
function ciInstall {
  ### 創(chuàng)建CI工作區(qū)
  echo -e "${BLUE_COLOR}[PO]>>>>>>>>>>>>>>>>>      Create CI Dir    >> >>>>>>>>>>>>>>>>${RES}"
  #放心執(zhí)行昔逗，因?yàn)橐呀?jīng)存在的忽略掉的
  mkdir -p $CI_HOME_DIR
  mkdir -p $CI_LIB_DIR
  mkdir -p $CI_TARGET_DIR
  mkdir -p $CI_LOG_DIR

  ### 安裝 jdk 1.8
  #判斷是否安裝過 jdk
  if [ ! -d $JAVA_HOME_DIR ]; then
    echo -e "${BLUE_COLOR}[PO]>>>>>>>>>>>>>>>>>      Install JDK    >> >>>>>>>>>>>>>>>>${RES}"
    cd $CI_LIB_DIR
    if [ -f $SETUP_DIR/$JAVA_TAR ]; then
      cp $SETUP_DIR/$JAVA_TAR $CI_LIB_DIR/$JAVA_TAR
    else
      wget --no-check-certificate -c --header "Cookie: oraclelicense=accept-securebackup-cookie" -O $JAVA_TAR $JAVA_DOWNLOAD_URI
    fi

    tar -zxvf $JAVA_TAR
    # TODO:修改環(huán)境變量
    echo "JAVA_HOME=$JAVA_HOME_DIR" >> /etc/profile
    echo 'PATH=$JAVA_HOME/bin:$PATH' >> /etc/profile
    echo 'CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar' >> /etc/profile
    echo "export JAVA_HOME PATH CLASSPATH" >> /etc/profile
    source /etc/profile
    java -version
  else
    echo -e "${GREEN_COLOR}[OK]>>>>>>>>>>>>>>>>>       JDK Installed   >> >>>>>>>>>>>>>>>>${RES}"
  fi

  ### 安裝 tomcat
  #判斷是否安裝過 tomcat
  if [ ! -d $TOMCAT_HOME_DIR ]; then
    echo -e "${BLUE_COLOR}[PO]>>>>>>>>>>>>>>>>>      Install Tomcat    >> >>>>>>>>>>>>>>>>${RES}"
    cd $CI_LIB_DIR
    if [ -f $SETUP_DIR/$TOMCAT_TAR ]; then
      cp $SETUP_DIR/$TOMCAT_TAR $CI_LIB_DIR/$TOMCAT_TAR
    else
      wget $TOMCAT_DOWNLOAD_URI
    fi

    tar -zxvf $TOMCAT_TAR
  else
    echo -e "${GREEN_COLOR}[OK]>>>>>>>>>>>>>>>>>       Tomcat Installed   >> >>>>>>>>>>>>>>>>${RES}"
  fi


  ### 安裝 maven
  #判斷是否安裝過maven
  if [ ! -d $MAVEN_DIR ]; then
    echo -e "${BLUE_COLOR}[PO]>>>>>>>>>>>>>>>>>      Install Maven    >> >>>>>>>>>>>>>>>>${RES}"
    cd $CI_LIB_DIR
    if [ -f $SETUP_DIR/$MAVEN_TAR ]; then
      cp $SETUP_DIR/$MAVEN_TAR $CI_LIB_DIR/$MAVEN_TAR
    else
      wget $MAVEN_DOWNLOAD_URI
    fi
    tar -zxvf $MAVEN_TAR
  else
    echo -e "${GREEN_COLOR}[OK]>>>>>>>>>>>>>>>>>       Maven Installed   >> >>>>>>>>>>>>>>>>${RES}"
  fi

  ### 安裝 git & lsof
  echo -e "${BLUE_COLOR}[PO]>>>>>>>>>>>>>>>>>      Install Git & LSOF    >> >>>>>>>>>>>>>>>>${RES}"
  yum install git
  yum install lsof
  echo -e "${GREEN_COLOR}[OK]>>>>>>>>>>>>>>>>>       Git & LSOF Installed   >> >>>>>>>>>>>>>>>>${RES}"

  ### 下載代碼
  if [ ! -d $PROJECT_DIR ]; then
    echo -e "${BLUE_COLOR}[PO]>>>>>>>>>>>>>>>>>      Download Code From Git : >$PROJECT_GIT< ${RES}"
    cd $CI_HOME_DIR
    git clone $PROJECT_GIT $PROJECT_NAME
  fi
  echo -e "${GREEN_COLOR}[OK]>>>>>>>>>>>>>>>>>       Code Downloaded ${RES}"

  echo -e "${GREEN_COLOR}[OK]>>>>>>>>>>>>>>>>>     Install Down ${RES}"
  echo -e "${GREEN_COLOR}[OK]>>>>>>>>>>>>>>>>>     New You Can Build The Project ${RES}"
  echo -e "${GREEN_COLOR}[OK]>>>>>>>>>>>>>>>>>     $ ci build ${RES}"
  return 0
}

# 配置設(shè)置
function ciConfig {
  echo -e "${PINK}請(qǐng)輸入tomcat的所在目錄(默認(rèn):$TOMCAT_HOME_DIR)? ${RES}"
  read -p ":" _tomcatHome
  if [ -z $_tomcatHome ]; then
    echo -e "${PINK}確認(rèn)要使用默認(rèn)的安裝目錄: $TOMCAT_PORT?${RES}"
    read -p "[y/n]:" isYN
    if [ ! $isYN = "y" ]; then
      echo -e "${PINK}[ERROR]您已放棄本次配置降传，請(qǐng)?jiān)谙乱淮尾渴鸸こ糖巴瓿膳渲茫駝t將無(wú)法部署 ${RES}"
      return 11
    else
      TOMCAT_HOME_DIR="$TOMCAT_HOME_DIR"
    fi
  else
    TOMCAT_HOME_DIR=$_tomcatHome
  fi
  echo -e "${PINK}請(qǐng)輸入tomcat所使用的端口(默認(rèn):$TOMCAT_PORT)?${RES}"
  read -p  ":" _tomcatPort
  if [ -z $_tomcatPort ]; then
    echo -e "${PINK}確認(rèn)要使用默認(rèn)的端口號(hào): $TOMCAT_PORT?${RES}"
    read -p "[y/n]:" isYN
    if [ ! $isYN = "y" ]; then
      echo -e "${PINK}[ERROR]您已放棄本次配置勾怒，請(qǐng)?jiān)谙乱淮尾渴鸸こ糖巴瓿膳渲闷排牛駝t將無(wú)法部署 ${RES}"
      return 12
    else
      TOMCAT_PORT="$TOMCAT_PORT"
    fi
  else
    TOMCAT_PORT=$_tomcatPort
  fi
  # 寫入文件
  rm -f $CI_CONF_FILE
  echo "TOMCAT_HOME=$TOMCAT_HOME_DIR" > $CI_CONF_FILE
  echo "TOMCAT_PORT=$TOMCAT_PORT" >> $CI_CONF_FILE
  return 0
}

# 清空ci工作區(qū)的所有文件，慎用
function ciClean {
  if [ ! -d $CI_HOME_DIR ]; then
    #該目錄已經(jīng)不存在
    echo -e "${PINK}目錄 : $CI_HOME_DIR 已不存在,無(wú)需刪除~ ${RES}"
    return 22
  fi
  echo -e "${PINK}確認(rèn)要清除CI目錄[$CI_HOME_DIR]么?${RES}"
  read -p "[y/n]:" isYN
  if [ $isYN = "y" ]; then
    rm -rf $CI_HOME_DIR
  else
    echo "Bye"
    return 21
  fi
  return 0
}

# 清楚ci工作區(qū)的 target & log目錄
function ciClear {
  echo -e "${PINK}確認(rèn)要清除CI目錄的日志和目標(biāo)文件么?${RES}"
  read -p "[y/n]:" isYN
  if [ $isYN = "y" ]; then
    rm -rf $CI_HOME_DIR/log/*
    rm -rf $CI_HOME_DIR/target/*
  else
    echo "Bye"
    return 31
  fi
  return 0
}

# 構(gòu)建項(xiàng)目
function ciBuild {
  echo -e "${BLUE_COLOR}[GO]>>>>>>      Clean${RES}"
  # 清空target目錄下的文件
  rm -rf $PROJECT_TARGET_DIR/*
  if [ -f $CI_TARGET_DIR/$PROJECT_NAME_deploy.war ]; then
    rm -f $CI_TARGET_DIR/$PROJECT_NAME_deploy.war
  fi
  echo -e "${GREEN_COLOR}[OK]>>>>>>     Clean done${RES}"
  #下拉代碼
  cd $PROJECT_DIR
  echo -e "${BLUE_COLOR}[GO]>>>>>>      Pull the master source code      ${RES}"
  git pull origin master
  echo -e "${GREEN_COLOR}[OK]>>>>>>     Pull done     ${RES}"

  echo -e "${BLUE_COLOR}[GO]>>>>>>      Build start      ${RES}"
  #編譯代碼
  cd $PROJECT_SOURCE_DIR
  $MAVEN_DIR/bin/mvn package > $CI_LOG_DIR/MAVEN_PACKAGE_$PROJECT_TARGET_VERSION_CODE.log
  echo -e "${GREEN_COLOR}[OK]>>>>>> Build done           ${RES}"
  #ls -l $API_TARGET_DIR
  echo -e "${BLUE_COLOR}[GO]>>>>>> Copy to target dir     ${RES}"
  # 這里需要替換成相應(yīng)的tomcat的目錄
  cp $PROJECT_TARGET_DIR/$PROJECT_NAME.war $CI_TARGET_DIR/$PROJECT_NAME_$PROJECT_TARGET_VERSION_CODE.war
  cp $PROJECT_TARGET_DIR/$PROJECT_NAME.war $CI_TARGET_DIR/$PROJECT_NAME_deploy.war
  echo -e "${GREEN_COLOR}[OK]>>>>>> Target Version : $PROJECT_TARGET_VERSION_CODE"
  echo -e "${GREEN_COLOR}[OK]>>>>>> You Need TO Deploy       ${RES}"
  echo -e "${GREEN_COLOR}[OK]>>>>>> Like: $ ./ci.sh deploy       ${RES}"

  return 0
}

function ciStartServer {
  echo -e "${BLUE_COLOR}[GO]>>>>>> Shutdown Server          ${RES}"
  $TOMCAT_HOME_DIR/bin/shutdown.sh
  # 有時(shí)候會(huì)關(guān)閉掉笔链，導(dǎo)致重啟不了
  # 使用lsof強(qiáng)制進(jìn)行關(guān)閉
  pid=`lsof -t -i:$TOMCAT_PORT`
  if [ ! -z $pid ]; then
    kill -9 $pid
  fi
  $TOMCAT_HOME_DIR/bin/startup.sh
  echo -e "${GREEN_COLOR}[OK]>>>>>>  Startup ok          ${RES}"

  return 0
}

# 復(fù)制工程并重啟tomcat
function ciRestart {
  if [ -z $1 ]; then
    target_war="$CI_TARGET_DIR/$PROJECT_NAME.war"
  fi
  echo "target_war  $target_war"
  if [ ! -f $target_war ]; then
    echo -e "${PINK}[ERROR]>>>>>> Cant Find The TargetWar File~ You Need Run The Next Command:        ${RES}"
    echo -e "${GREEN_COLOR}[OK]>>>>>> $ ./ci.sh build       ${RES}"
    return 52
  fi

  echo -e "${BLUE_COLOR}[GO]>>>>>> Shutdown tomcat          ${RES}"
  # 有時(shí)候會(huì)關(guān)閉掉段只，導(dǎo)致重啟不了
  # 使用lsof強(qiáng)制進(jìn)行關(guān)閉
  pid=`lsof -t -i:$TOMCAT_PORT`
  if [ ! -z $pid ]; then
    $TOMCAT_HOME_DIR/bin/shutdown.sh
    kill -9 $pid
  fi
  echo -e "${GREEN_COLOR}[OK]>>>>>>  Shutdown ok          ${RES}"

  cp $target_war $TOMCAT_DEPLOY_DIR/$PROJECT_NAME.war

  $TOMCAT_HOME_DIR/bin/startup.sh

  if [ ! -f $TOMCAT_DEPLOY_DIR/$PROJECT_NAME.war ]; then
    echo -e "${PINK}[ERROR]>>>>>> Deploy failed~ plz run again        ${RES}"
    return 51
  else
    echo -e "${GREEN_COLOR}[OK]>>>>>> Success~ Deploy Finished~          ${RES}"
  fi
  return 0
}

# 手動(dòng)部署項(xiàng)目
function ciDeploy {
  target_war="$CI_TARGET_DIR/$PROJECT_NAME.war"
  if [ ! -z $1 ]; then
    echo $1
    target_war="$CI_TARGET_DIR/$1.war"
  fi
  echo $target_war
  echo -e "${GREEN_COLOR}[GO]>>>>>> Deploy          ${RES}"
  echo -e "${GREEN_COLOR}[GO]>>>>>>  The Tomcat Var Is:          ${RES}"
  echo -e "${GREEN_COLOR}[OK]>>>>>>  TOMCAT_HOME_DIR At $TOMCAT_HOME_DIR ${RES}"
  echo -e "${GREEN_COLOR}[OK]>>>>>>  TOMCAT_PORT     At $TOMCAT_PORT ${RES}"
  echo -e "${GREEN_COLOR}[OK]>>>>>>  TOMCAT_DEPLOY_DIR     At $TOMCAT_DEPLOY_DIR ${RES}"
  echo -e "${GREEN_COLOR}[OK]>>>>>>  是否使用當(dāng)前環(huán)境變量進(jìn)行發(fā)布?${RES}"
  read -p "[y/n]:" isYN
  if [ ! $isYN = "y" ]; then
    echo -e "${GREEN_COLOR}[OK]>>>>>>  請(qǐng)輸入 $ ci.sh conf 重新配置tomcat的目錄${RES}"
    return 41
  fi

  ciRestart $target_war

  return $?
}

# 自動(dòng)部署項(xiàng)目
function ciPublish {
  ciRestart
  return $?
}

function ciRequireCommand {
  echo -e "${GREEN_COLOR}[GO]>>>>>>  您輸入的參數(shù)錯(cuò)誤，可選的參數(shù)如下：         ${RES}"
  echo -e "${GREEN_COLOR}[GO]>>>>>>  ci install  : 安裝ci目錄鉴扫，maven赞枕，下載git代碼          ${RES}"
  echo -e "${GREEN_COLOR}[GO]>>>>>>  ci build  ：編譯git倉(cāng)庫(kù)中最新的代碼 ${RES}"
  echo -e "${GREEN_COLOR}[GO]>>>>>>  ci deploy ：將代碼發(fā)布到servlet容器中并重啟該容器 ${RES}"
  echo -e "${GREEN_COLOR}[GO]>>>>>>  ci conf ：設(shè)置servlet容器的目錄和端口 ${RES}"
}
echo -e "${BLUE_COLOR}[GO]>>>>>>>>>>>> Command:[$1]>>>>>>>>>>>>>>${RES}"

#沒有值
if [ -z $1 ]; then
  ciRequireCommand
  exit
## 安裝流程
elif [ $1 = "install" ]; then

  ciInstall

elif [ $1 = "conf" ]; then

  ciConfig
  if [ $? > 0 ]; then
    exit
  fi
elif [ $1 = "startup" ]; then
  ciStartServer
  if [ $? > 0 ]; then
    exit
  fi
elif [ $1 = "clean" ]; then
  ciClean
  if [ $? > 0 ]; then
    exit
  fi

elif [ $1 = "clear" ]; then
  ciClear
  if [ $? > 0 ]; then
    exit
  fi
elif [ $1 = "build" ]; then
  ciBuild
elif [ $1 = "deploy" ]; then
  ciDeploy $2
elif [ $1 = "publish" ]; then
  ciPublish
  if [ $? > 0 ]; then
    exit
  fi
else
  ciRequireCommand
  exit
fi #end if