upstart service 建立

這邊先貼幾個基本的，在etherpad及wisemapping建置的時候使用的conf來看一下

/etc/init/etherpad.conf

description "etherpad"

#start on started networking
start on started mysql
stop on runlevel [!2345]

env EPHOME=/home/etherpad/etherpad-lite
env EPLOGS=/var/log/etherpad-lite
env EPUSER=etherpad

respawn

pre-start script
    cd $EPHOME
    mkdir $EPLOGS                              ||true
    chown $EPUSER:admin $EPLOGS                ||true
    chmod 0755 $EPLOGS                         ||true
    chown -R $EPUSER:admin $EPHOME/var         ||true
    $EPHOME/bin/installDeps.sh >> $EPLOGS/error.log || { stop; exit 1; }
end script

script
  cd $EPHOME/
  exec su -s /bin/sh -c 'exec "$0" "$@"' $EPUSER -- node node_modules/ep_etherpad-lite/node/server.js 
                        >> $EPLOGS/access.log 
                        2>> $EPLOGS/error.log
end script

/etc/init/wisemapping.conf

description "Wisemapping Service"
author "cowman"
start on started mysql
stop on runlevel [!2345]

env WHOME=/wisemapping
env WLOGS=/var/log/wisemapping

expect fork

pre-start script
  chdir $WHOME
  mkdir $WLOGS                              ||true
end script

respawn

script
  chdir $WHOME
  java -Xms512m -Xmx1024m  -Dorg.apache.jasper.compiler.disablejsr199=true -jar $WHOME/start.jar 
                                                                             >> $WLOGS/wisemapping.log 
                                                                            2>> $WLOGS/error.log
  emit wisemapping_running
end script

當conf檔案放入/etc/init後便可以透過以下指令進行
start {service name}
stop {service name}
restart {service name}
status {service name}

以下大概作個說明

description "描述說明"
author "作者名稱"

start on [程序]
# start on started mysql <= 等 mysql 啟動完畢在啟動
# start on runlevel [345] <= 伴隨系統runlevel設定一起啟動
# 說明請見 http://upstart.ubuntu.com/cookbook/#runlevels
stop on [程序]

env 環境變數

expect fork #保護程序

pre-sstart script  # 啟動預備程序
<內容>
chdir 目錄 # 切換目錄
end script

respawn  # 當程序崩潰時重新啟動

script # 主程序
內容
end script

更詳細的說明可以參考 http://blog.fens.me/linux-upstart/

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