AutoScale-java

A Scaling Application running on Marathon and Mesos based on Application's name using Java. This Application can monitor multi app that registered in Marathon.

Why

There are many projects can do the auto Scaling job. Some of them monitor the docker status like CPU and memory. some of them monitor the connections on the app itself, but most of them only monitor one app. This project monitor the multi-apps by ask Mesos metrics to calculate the CPU and memory usage of them.

Build

maven clean install

Package

docker build -t autoscale-jar .

Usage

Config

Please change the config file under

src/resources/server-dev.properties

before you build the autosacale service like:

server.port=<service port you want to manage>
marathon.url = <the marathon url>

Java

java -jar autoscale-java.jar

docker

docke run -d autoscale-java

If you start the service you could tell the service which app you want to monitor and how to scale via restful API

API

1. Resister a application

POST v1/apps/{appName}

Body

{
    "appName": "/sampleApp",
    "type": "up",
    "memPercent": 70,
    "cpuTime": 70,
    "triggerMode": "or",
    "scaleMultiplier": 1.5,
    "instances": 20,
    "strategy": [
      "replay",
      "20"
    ]
  }

Name	Type	Description	Sample
appName	String	The name you want to monitor which registered in Mathron	/sampleApp
type	String	scale type: up or down	/up
memPercent	Int	the percent of mem usage which to trigger the scale up or down	80
cpuTime	Int	the percent of cpu usage which to trigger the scale up or down	80
triggerMode	String	mode type for how to use the cpu and memory usage: "or" or "and"	or
scaleMultiplier	Double	the multiplier of scale up or down	1.5
instances	Int	max size or min size of instances	20
strategy	json	the stragegy of scaling	repaly,fix