Dynamic Deployment Oredev 2009

1. dynamic deployment with OSGi Angelo van der Sijpt angelo.vandersijpt@luminis.nl

9. how about modules?

10. Partitioning software • modular, componentized, ... • minimize dependencies • consider rate of change • minimize complexity • maximize architected ﬂexibility • testability • reuse

11. Reuse: copy/paste • no clearly deﬁned interface • maintenance nightmare

12. Reuse: Object Oriented • objects tend to work badly when taken out of context

13. Reuse: Components • components are black boxes • clear “interfaces” with their

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15. >)=9)%)% A(..0=9 %)=9)%)% #(..0=9 28"=4? C- (,)= 203) =)8 #0=302 28"=4D#0=302 28"=4D;" 28"=4D#.9D(,)= 28"=4D#.9D203) 28"=4D#.9D=)8 28"=4D#(='%(62 @07(;' &<0,) -.,(%')% *+,(%')% 607(;' 2<0,) ".,(%')% )+,(%')% 4%0,< 2:;0%) #"%#6) '%"0=46) 234 /0#)1(($ !"#$% 607(;'D4%0,< 2<0,)D2:;0%) 2<0,)D#"%#6) 2<0,)D'%"0=46) ".,D234 )+,DE(($ ".,D!"#$% A(=54;%0B(= @(4 &'(%) *3)=' (24"D#0 (24"D6(4 2'(%) (24"D)3)=' #(=54 6(44)% 56)272'). 8)1903 )3)=' /)6"+D#0 /)6"+D6(4 2'(%)D/2 2'(%)D8)1903 /)6"+D)3)='

16. %)=9)%)% #(..0=9 >)=9)%)% A(..0=9 %)=9)%)% #(..0=9 ;" #(..0=92 28"=4? C- (,)= 203) =)8 #0=302 28"=4D#0=302 28"=4D;" 28"=4D#.9D(,)= 28"=4D#.9D203) 28"=4D#.9D=)8 28"=4D#(='%(62 9%08"=4 &<0,) 0,"D"( @07(;' -.,(%')% *+,(%')% 607(;' 2<0,) ".,(%')% )+,(%')% 4%0,< 2<0,)2 234 )+,(%')%2 4%0,< 2:;0%) #"%#6) '%"0=46) 234 /0#)1(($ !"#$% 607(;'D4%0,< 2<0,)D2:;0%) 2<0,)D#"%#6) 2<0,)D'%"0=46) ".,D234 )+,DE(($ ".,D!"#$% 0,"D(24" A(=54;%0B(= @(4 &'(%) *3)=' (24"D#0 (24"D6(4 2'(%) (24"D)3)=' #(=5409."= 6(4 56)2'(%) 8)1903 )3)=' #(=54 6(44)% 56)272'). 8)1903 )3)=' /)6"+D#0 /)6"+D6(4 2'(%)D/2 2'(%)D8)1903 /)6"+D)3)='

17. OSGi technology is the dynamic module system for Java™ OSGi technology is Universal Middleware. OSGi technology provides a service-oriented, component- based environment for developers and offers standardized ways to manage the software lifecycle. These capabilities greatly increase the value of a wide range of computers and devices that use the Java™ platform.

18. !"#$%"&'($)&%*+,-./'0 !"#$%"&'($)&%*+,-./'0 1/'&%"2&)$.$),-$/3 "&'($)&%1/02&34$50 45&%!"#$%6++$,3)& 67&%!"#$%8++$,3)& 7&+&,8&%9:%;&'8$/3%9<= 9&+&,:&%;<%=&':$/3%;>? 62'$+%>??@ 82'$+%@AAB Digitally signed by Digitally OSGi OSGi Alliance DN: cn=OSGi Alliance, c=US Date: signed by 2007.02.22 OSGi OSGi Alliance DN: cn=OSGi Alliance, c=US Signatu Alliance 14:44:10 + 01'00' re Not Alliance Date: Verified 2007.02.22 Signatur 14:45:47 + e Not 01'00' Verified

19. L3 - Provides a publish/ﬁnd/ SERVICE MODEL bind service model to decouple bundles L2 - Manages the life cycle of a bundle in a framework LIFECYCLE without requiring the vm to be restarted L1 - Creates the concept of a module (aka. bundle) that use MODULE classes from each other in a controlled way according to system and bundle constraints L0 - Execution OSGi Minimum Execution Environment Environment CDC/Foundation JavaSE

20. Module Layer Module Bundle Bundle Bundle Bundle imports exports imports exports exports exports • unit of deployment org.apache.utils 1.0 org.apache.db 1.4 is the bundle i.e., a JAR org.apache.log 2.3 org.apache.utils 1.1 • share only your “interface” packages • automatic wiring based on version ranges Module

21. Life-cycle Layer Life-cycle install installed start start starting resolved active • Managed life cycle end uninstall uninstalled stopping stop • States for each bundle; • Allows updates of existing bundles. • Dynamically install, start, update, and uninstall Life-cycle Module

22. Service Layer • OSGi framework Service promotes service Log Database Prefs publish publish use oriented interaction publish use use Bundle Bundle Bundle Bundle pattern among bundles Service Registry publish ﬁnd Service Life-cycle Service Service Provider Requeste Module interact

23. OSGi compendium User Admin Initial Provisioning Wire Admin XML Log Device Access Measurement and Parser State UPnP™ Preferences Device Conﬁguration Admin Position Metatype Event Service Tracker Admin HTTP IO Connector Execution Environment Spec Declarative Services

24. Now we have components, hurrah! Right?

25. “What version do you have?” “Can you look in the ‘about’ box?” Now we install 037B.17.zip “Did you have components, we sent you?” hurrah! Right? What is the version of the product, anyway?

26. how about conﬁguration

27. Dynamic Deployment • who uses what? • what’s the history of a system? • what’s the impact of this bug? • integrate into build/test/QA cycle • extensions, like (re)install and license management

28. !"#$"%&%'() !"#$%&'( !"#$"%&%'(* !"#$%&') !"#$"%&%'(! !"#$%&'*

29. !"#$"%&%'() !"#$%&'( !"#$"%&%'(* !"#$%&'"() !"#$%&') !"#$"%&%'(! !"#$%&'*

30. now !"#$"%&%'() !"#$%&'( !"#$"%&%'(* !"#$%&') !"#$"%&%'(! !"#$%&'*

31. last year !"#$"%&%'() +,-.&'() last month !"#$"%&%'() !"#$"%&%'(* +,-.&'() last week !"#$"%&%'() !"#$"%&%'(* !"#$%&'( +,-.&'(! +,-.&'(* now !"#$"%&%'() !"#$%&'( !"#$"%&%'(* !"#$%&') +,-.&'(! !"#$"%&%'(* !"#$"%&%'(! !"#$%&') !"#$%&'* !"#$"%&%'(! !"#$%&'*

32. !"#$%! 0"&"$%0%&!. "$%&! !"#$%! /2,%&! *#(+,-,(&,&$. 0"&"$%0%&!. &%!'(#) -%#+%# "$%&! !"#$%! 0"&"$%0%&!. "$%&! /(0*(&%&!. #%*(-,!(#1

33. !"#"$!"$%&' !"#,-&("$+ ()$)*"("$+ .""!/)%0

34. ',*-&'( )&*(+"%( !"#$"%&%'( 2 1"#$"%&%'/0 !"#$"%&%'() 3 1"#$"%&%'/0 !"#$"%&%'() !"#$"%&%'(! .,*-&'/0 4 1"#$"%&%'/0 !"#$"%&%'(! !"#$"%&%'(* 5 1"#$"%&%'/1 !"#$"%&%'(* 2 1"#$"%&%'/6 !"#$"%&%'(* .,*-&'/6 3 1"#$"%&%'/0 !"#$"%&%'() !"#$"%&%'(*

35. !"#$%! 0"&"$%0%&!. "$%&! !"#$%! /2,%&! *#(+,-,(&,&$. 0"&"$%0%&!. &%!'(#) -%#+%# "$%&! !"#$%! 0"&"$%0%&!. "$%&! /(0*(&%&!. #%*(-,!(#1 • server only stores metadata, so no IP in these repositories • allows integration with different repositories • OBR, Maven (anything with a URL)

36. !"#$%! *#(+,-,(&,&$. /"&"$%/%&!. &%!'(#) -%#+%# "$%&! 012,!. 012,!. 3($ 3($ !=#".%@A*?B*-%45(%23-'+*,C%151*%4521- $"#$E%;21-<*%$"%,+533*- !:#". !D#".!"#$"%&'()*+%,+'(+*- $"#$9 !"#$"%&'()*+%,+'(+*- $E#".!"#$.%/+'(01)%23-'+*%4(56%7*(,851%9%+5%: $"#.9 !"#$.%/+'(01)%23-'+*%4(56%7*(,851%9%+5%: $!#".!"#$.%;21-<*%"=%23-'+*- E$#$$ !"#$.%;21-<*%"=%23-'+*- !"#$9%>3-'+*%+5%7*(,851%:%,2??**-*- E9#$$ !"#$9%>3-'+*%+5%7*(,851%:%,2??**-*- !.#$9%&'()*+%,+533*- !.#$9%&'()*+%,+533*-

37. Management Agent • manages life cycle of bundles • controls package sharing policies • controls starting/stopping !"#$%"&'($)&%*+,-./'0 1/'&%"2&)$.$),-$/3 45&%!"#$%6++$,3)& order 7&+&,8&%9:%;&'8$/3%9<= >?3&%=@@A • implements a security

38. !"#"$%!%#&'"$%#& *'.#"/0#, '('.# "#10)-2#$34 (/"!340)6 3(*5 !"#$%&'(%)$ "!*')+#,-

39. Management Agent !"#"$%!%#&'"$%#& *'.#"/0#, '('.# "#10)-2#$34 (/"!340)6 3(*5 !"#$%&'(%)$ "!*')+#,- • identification, uniquely identifies a target • discovery, provides mechanism to find server • scheduler, periodically triggers updates

40. Deployment Admin • versioned set of artifacts • transactional install/update • ﬁx packages provide deltas • signing makes them secure • extensible through resource processors !"#$%! 0"&"$%0%&!. "$%&! !"#$%! /2,%&! *#(+,-,(&,&$. 0"&"$%0%&!. &%!'(#) -%#+%# "$%&! !"#$%! 0"&"$%0%&!. "$%&! /(0*(&%&!. #%*(-,!(#1

41. demo

42. Angelo van der Sijpt software engineer at Luminis / Apache ACE committer angelo.vandersijpt@luminis.nl @_angelos

43. Further reading • www.luminis-technologies.com • cwiki.apache.org/ACE/ • cwiki.apache.org/FELIX/ • Or ask me: angelo.vandersijpt@luminis.nl

Dynamic Deployment Oredev 2009

Dynamic Deployment Oredev 2009

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