Peergreen Platform Overview

Peergreen PlatformGuillaume Sauthier

[email protected]@sauthieg

17/05/2013

mailto:[email protected]

© 2013 Peergreen, Confidential & Proprietary

Plan

• Overview• In depth

o Guidelineso Booto Deployment Systemo Shello Webo Consoleo Securityo Development

• Next

Overview


Overview

• Peergreeno Startupo Experienced engineerso Open source contributions


Available today

• Peergreen Server M1o Light-weighted integrated server (<3MB)o OSGi “application” supporto Effective deployment system

• Peergreen Eclipse Plugino Leverage Eclipse OSGi framework support

Shamelesscommercial

slide

Downloadable from our web site www.peergreen.com

http://www.peergreen.com/

In Depth


Guidelines

• Built-in extensibility and dynamism• Fast, fast, fast• Right sized• User and applications as first class citizen

“Everything should be made as simple as possible but no simpler”A. Einstein


Boot

• User’s very first impressiono Easy to executeo Fast


Boot

• All-in-one executable artifact• Few seconds to boot on modern machines

• Mechanisms in useo Jar introspectiono Jar compressiono Classloader for accessing jar in jar’s contento Maven plugin for building specific assembly

Select underlying OSGi framework Select initial Bundles set with start levels (if any)


Boot

Demo


Boot

• Wrap upo Boot in a few secondso event:* commands to observe boot timeo Simple launch procedure


Deployment System

• Core system blocko Native multi-thread supporto Plug-able service-based architectureo Artifact centric

Faceted artifactso Deployed resource neutral

Location (remote, local, access protocol) Type (bundle, web-app, …)

o Operation reporting (errors, …)o Persistence

• Supported artifactso OSGi Bundleo OSGi Configuration Admino OW2 JOnAS deployment plano Java EE Web applications

ready

CB A


Deployment System

• Artifacto Resource to be deployed, URI location

• Faceto Specialized view of the artifact (Web, Bundle, ConfigAdmin,

…)

• Processoro Express requirements (for automatic placement)o Handle the archive

Produce a facet Use a facet “Glue” the artifact on an external system …

Artifact

CB

A


Deployment System

• Processing artifactso Collection of artifact handled simultaneouslyo Execute concurrently or sequentially a set of Processorso Dynamic resolution of runnable processors

• Phaseo Container of Processorso Logical ordering

• Processoro Installed in a phaseo Statelesso Express requirements

Enabled only if resolved

discovery

per-facetOSGi

install

start

Webread-web

configure

start


Deployment System

• Global discovery phaseo Sub-phases executed sequentiallyo Processors in phases executed concurrently

uri-fetcher uri-resolver facet-scanner facet-conflicts

dependency-finder


Deployment System

• Per-facet lifecycleo Sequence of phaseso Runnable processor of phase are executed concurrently (when possible)o Facet lifecycle phase can be traversed simultaneously by multiple artifacts

webxml

install

start

bundle

install

start

ca

read

create


Deployment System

• Extensionso Contribute Processors

Bound to a phase, requiring facet and/or artifact attributeso Contribute Lifecycle for a facet

Define the sequence of phases for DEPLOY, UNDEPLOY and UPDATE


Deployment System

• Artifact modelo Artifacts are stored in a model

With meta-information• Processor’s chain

• Execution time Deployment root ? Transformed artifact

o Query-able Service API available CLI

plan

plan

web ejbjar

mvn

bundle


Deployment System

Demo


Deployment System

• Wrap upo OW2 JORAM deployment plan

Bundles activated (loaded from maven repository)o OW2 JORAM configuration files

Configurations started and services instances registeredo OW2 JOnAS compatibility


Shell

• OW2 Shelbie basedo Modular & dynamico Apache Felix iPOJO integrationo Sweetness

Completion ANSI Easy command programming (@Command, @Option and

@Argument)


Shell

• Built-in command scopeso Gogo & Felix commandso Shelbie built-in commands

exit / shutdown help

o iPOJO commandso Config-admin commandso Java VM commands

Threads management (dump, stop/interrupt threads, deadlocks)o MBeans commands

JMX handling (get / set attributes, introspect mbeans, …)o Deployment commands

List deployed artifacts, print reports, …o Newsfeed commands (RSS)o Security commands

Realm management


Shell

Demo


Shell

• Wrap upo Completiono Help systemo Remote telnet accesso Threads reporting

Deadlock detection Thread interruption


Web

• Supports of web applicationo Java EE standard web app (.war)o HttpService implementation

• Servlet 3.0 / JSP 2.2 / EL 2.2• Apache Tomcat 7.0.39

M2


Web

• Deployment system integrationo Facet contribution (phases description)

o Processors Webapp type detection and facet installation Context configuration Context start

M2

Generic

Tomcat

Tomcat

DEPLOY parse deploy start

UPDATE stop parse start

UNDEPLOY stop undeploy


Web

• Classloadingo Java EE Web archives assume permissive classloading

environment Not a nice fit within an OSGi gateway :’(

o Needs a special bundle with the ugly DynamicImport-Package * Special classloader delegating to this bundle used as Webapp’s parent

classloader

M2

not very proud :’(


Web

• Injectiono Default Tomcat InstanceManager has to be replaced

Imports all of the Java EE packages (@EJB, …) Hardcoded behavior

o Peergreen InstanceManager Supports @Resource on BundleContext Limited imports Abstractable to be usable for other components

M2

Modularity :’(

Evolution :’(

OSGi binding :-)

OSGi friendly :-)

Work in progress


Web

• HttpServiceo Tomcat-based implementationo Servlet 3.0 supporto Good enough to run Apache Felix Webconsole :-)

M2


Web

Demo

M2


Web

• Wrap upo Java EE War deploymento Usable HttpService with Apache Felix Webconsole

M2


Console

• Highly modular and extensible web consoleo Foundation for our products’ consoleso External contributions

Business moduleso Vaadin framework selected

HTML 5 support Mature On-going OSGiTM integration GWT under the hood• Responsive client application

Nice look and feel

M2


Console

• Foundationo Base application layout

Scopes containing tabbed viewso Theme

Shared across contributed viewso Unified login pageo Notification serviceo Extensibility through OSGi services

Do not think extension points !

M2


Console

Demo

M2


Console

• Wrap upo Views contributionso Server interactions

Start/Stop bundleo Notifications

Badge Overlay

M2


Security

• Security needs to be there from the beginningo Protect access to the server

Authentication Authorization

o Administrative entry points Shell console Web console JMX . . .

M2


Security

• Account managemento Storing accounts securely

Hashing Persistence

• Services APIso HashService

Encrypt clear text password into byte[]• Plain text, MD5, Salted SHA, …

o EncoderService Transform the byte[] into a persistable String• Base64, Hexa, Text, …

o AccountStore Manage store content

M2

admin

joe

jane

HashService

AccountStore

EncoderService

extensibility


Security

• Command lineo User management

CRUDo Role management

Assignment

M2


Security

Demo

M2


Security

• Wrap upo User creationo Password modificationo Local console is securedo Tomcat realm connected to AccountStore

M2


Development

• Building applicationso Eclipse supporto Maven support


Development

• OSGi FrameworkFactory APIo Standard API to launch OSGi frameworks

Apache Felix Eclipse Equinox . . .

o Peergreen Server also implements it

Peergreen Server executable jar is usable directly from consumer of that API !

• Pax Exam• OW2 JOnAS• . . .

Next


Next (soon)

• Java Transaction APIo On-going work on OW2 JOTM

• Java Persistence APIo @PersistenceContext supporto On going work on OW2 EasyBeans

• JNDIo JNDI / OSGi integration

M2


Next (later)

• Web consoleo More supported contributions

Menu bar Progress view

• RESTo Jersey integration

• EJBo EasyBeans integration

• HttpServiceo Java EE annotations support (@WebServlet)o Filter and Listener

M?


Next

• Release plano Scheduled release every 2 months

M?

M1 April

M2 June

M3 August

M4 October


Questions


Picture resources

• http://www.flickr.com/photos/tales2astonish/7436776110/• http://www.flickr.com/photos/richard_jones/4352200167/• http://www.flickr.com/photos/richard_jones/4352196667• http://www.flickr.com/photos/richard_jones/4352929650/• http://www.flickr.com/photos/richard_jones/4326588616/• http://www.flickr.com/photos/richard_jones/4325850207/• http://www.flickr.com/photos/richard_jones/4428269374/

http://www.flickr.com/photos/tales2astonish/7436776110/

http://www.flickr.com/photos/tales2astonish/7436776110/

http://www.flickr.com/photos/richard_jones/4352200167/


http://www.flickr.com/photos/richard_jones/4352196667

http://www.flickr.com/photos/richard_jones/4352196667









Technology

Peergreen Platform Overview