Dynamic  deployment  with  Apache  Felix

Marcel  Offermans

Friday, November 6, 2009

Friday, November 6, 2009

Marcel  Offermans

• commi0er  and  PMC  member  at  Apache  Felix

• commi0er  at  Apache  ACE

• so<ware  architect  at  luminis  technologies

• marcel.offermans@luminis.nl

Friday, November 6, 2009

Agenda

• The  case  for  OSGi

• Dynamic  Deployment  with  Apache  ACE

• Demo,  ACE  in  AcIon

• Wrapup

Friday, November 6, 2009

The  case  for  OSGi

• Paint  ApplicaIon

• wri0en  in  Java

• sold  to  customers

Friday, November 6, 2009

“Specials”  that  fork  your  code

Friday, November 6, 2009

ConCnuous  builds  taking  a  long  Cme

Friday, November 6, 2009

Code  reflects  the  architecture?

Friday, November 6, 2009

How  hard  is  it  to  change  something?

Friday, November 6, 2009

Re-­‐use:  copy/paste

Friday, November 6, 2009

Re-­‐use:  Object  Oriented

Friday, November 6, 2009

Re-­‐use:  Component  Based

Friday, November 6, 2009

ParCConing  your  applicaCon

• minimize  dependencies

• consider  rate  of  change

• minimize  complexity

• maximize  architected  flexibility

• promote  reuse

• improve  testability

Friday, November 6, 2009

Designing  with  services

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Friday, November 6, 2009

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Friday, November 6, 2009

The  Case  for  ACE

• Started  in  incubator  on  april  24th  2009

• So<ware  distribuIon  framework  based  on  OSGi

• 7  commi0ers

• working  codebase

• no  release  yet

• h0p://incubator.apache.org/ace/

Friday, November 6, 2009

Deployment

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Friday, November 6, 2009

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Friday, November 6, 2009

Why?

• Automate  deployment

• Insight  into  who  uses  what

• History  of  each  system

• Consistent  development,  tesIng,  producIon

• Basis  for  several  possible  extensions

Friday, November 6, 2009

Topology

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Friday, November 6, 2009

High  level  overview

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Friday, November 6, 2009

Dependency  Management

• Organizing  components

• Mapping  them  to  targets

Friday, November 6, 2009

Organizing  components

• group  components:  makes  them  manageable

• two  levels:  group  and  license

• Analogy:  IKEA  catalog

• data  is  kept  in  “store  repository”

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Friday, November 6, 2009

Mapping  them  onto  targets

• mapping  licenses  to  targets

• someImes  done  by  an  external  system

• data  kept  in  “license  repository”

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Friday, November 6, 2009

User  Interface

• user  retrieves,  

• modifies  locally  and  

• stores  data  on  server

Friday, November 6, 2009

Deployment

• list  of  targets

• list  of  versions  per  target

• list  of  components  per  version

• management  agent

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Friday, November 6, 2009

Deployment  Repository

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Friday, November 6, 2009

Management  Agent

• manages  life  cycle  of  bundlesBundleContext

• controls  package  sharing  policiesPackageAdmin

• controls  starIng/stopping  orderStartLevel

• implements  a  security  policyCondi7onalPermissionAdmin

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Friday, November 6, 2009

Management  Agent

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Friday, November 6, 2009

Deployment  Admin

• deployment  packages

• versioned  set  of  arIfacts

• transacIonal  install/update

• fix  packages  provide  deltas

• signing  makes  them  secure

• extensible  through  resource  processors

• AutoConfig  defines  configuraIon  admin  data

Friday, November 6, 2009

From  dependency  to  deployment

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Friday, November 6, 2009

Feedback

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Friday, November 6, 2009

Demo

Friday, November 6, 2009

Demo

Friday, November 6, 2009

Demo

Friday, November 6, 2009

Demo

Friday, November 6, 2009

Wrapup

• Apache  ACE  is  incubaIng

• Take  it  for  a  test-­‐drive!

• Looking  for  contribuIons:

• Apache  Felix  Karaf

• Maven  /  Nexus  repository

• Kalumet,  JEE  auto  deployment

Friday, November 6, 2009

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Friday, November 6, 2009