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www.realdolmen.com ORGANIZE YOUR CHICKENS: NUGET FOR THE ENTERPRISEJANUARY 16, 2013 | SLIDE 1

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WHO AM I? Xavier Decoster Antwerp, Belgium Technical Consultant, RealDolmen Co-founder of MyGet.org Microsoft Extended Experts Team Author of Apress Pro NuGet http://www.xavierdecoster.com @xavierdecosterJANUARY 16, 2013 | SLIDE 2

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IN THIS SESSION Chickens?!JANUARY 16, 2013 | SLIDE 3

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We all have dependencies: deal with them! DEPENDENCY MANAGEMENTJANUARY 16, 2013 | SLIDE 4

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SYMPTOMS YOU GOT A PROBLEM… No Versioning Strategy “Not Invented Here” Binaries Duplicated Syndrome all over VCS Release Bottlenecks Time Consuming Builds No License Management Monolithic Frameworks Conflicting References OSS InventoryJANUARY 16, 2013 | SLIDE 5

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WELCOME TO DEPENDENCY HELL “A term for the frustration of software users who have installed software packages which have dependencies on specific versions of other software packages.” (Wikipedia)JANUARY 16, 2013 | SLIDE 6

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IMPACT OF DEPENDENCY HELL Version Control Delays Branching Strategy Increased Time-to-market Requirements Management Frustration, both for Architecture developers and users Coding & Testing Decreased ROI Continuous Integration VCS storage size ++ Time spent waiting/idle ++ Build Management Value revenue -- Deployment Release Management Bite me! I’m outta here..JANUARY 16, 2013 | SLIDE 7

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A thin red line connecting many ALM processes… PACKAGE MANAGEMENTJANUARY 16, 2013 | SLIDE 8

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FIRST THINGS FIRST  From dependency hell to package hell?  Broken process/architecture cannot be fixed by a tool!  Hell is hell, whether it’s the home of  Assemblies  Packages  Gems  What. Ever.  Escape route  Separating Concerns  Improves Cohesion  Increasing Cohesion  Improves maintainability  Improving maintainability  escaped from hell JANUARY 16, 2013 | SLIDE 9

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NUGET: THE WAY OUT?  NuGet is a tool for package management  Facilitates searching & automates installing, upgrading, uninstalling, creating & publishing packages  Encourages good practices: e.g. versioning & reuse of components  Tools should  Just work  Reduce friction  Empower us & guide us to do the right thing  NuGet is such a tool  Not the answer to everything  But excellent at guiding you to find a way outJANUARY 16, 2013 | SLIDE 10

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HOW ABOUT FRICTION?!  NuGet covers ~80% of typical needs  Not only OSS needs!  Scenarios  Automation  Automation  Automation  Most friction is caused by  Not adhering to good ALM practices  Not adhering to good technical design  Lack of extensibility in / integration with other toolsJANUARY 16, 2013 | SLIDE 11

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VERSIONING  Think about your versioning!  Semantic versioning (semver.org) Major Breaking changes Minor Backwards compatible API additions/changes Patch Bugfixes not affecting the API  NuGet is smarter when using SemVer  Safe upgrades  You can be smarter when using SemVer  Anticipate breaking changesJANUARY 16, 2013 | SLIDE 12

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VERSIONING “Zookeepers must become Rangers” (Mark Seemann) Non-negotiable deadline “Big Bang Release” Product Component A Component B Component C TimeJANUARY 16, 2013 | SLIDE 13

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A STORY OF CONSUMERS AND CONSUMABLES… Consume packages Can consume packages Typically do not produce packages Consumer Consumables Produce packages Usually require installation / deploymentJANUARY 16, 2013 | SLIDE 14

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THE –FORCE IS STRONG IN THIS ONE… “As software creators we don’t get to decide what version of our tools / libraries that people use. If we try to force them, our users will go somewhere else.” (Rob Reynolds)  As a package publisher  Do NOT expect/force your consumers to always update to the latest version  You can only hope they upgrade.  As a result, dear package consumers:  Do NOT auto-update packages! Consuming any package update must be a well-considered and human-made decision.JANUARY 16, 2013 | SLIDE 15

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VERSIONING TAKE-AWAYS  Be explicit!  Breaking change?  Clients decide when to upgrade!  Introduce new version side-by-side & deprecate the old one  Monitor & measure usage  If you don’t know if it’s used, you can’t remove itJANUARY 16, 2013 | SLIDE 16

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YOUR OWN NUGET REPOSITORY  NuGet.org = public feed  Privacy  Intellectual property  Solutions  Local Folder / Network share  NuGet.Server package  NuGet Gallery  MyGet.orgJANUARY 16, 2013 | SLIDE 17

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INSTALL-PACKAGE NUGET.SERVERJANUARY 16, 2013 | SLIDE 18

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NUGET.SERVER LIMITATIONS  Simple Implementation  Only 1 feed per web application  No granular security: 1 API key for all  Minimal UI  Conclusion:  Something more useful requires developmentJANUARY 16, 2013 | SLIDE 19

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NUGET-AS-A-SERVICE  www.myget.org  NaaS  No installation: Register and off you go!  Freemium  Key Features for enterprise scenarios  Granular security  Private feeds (ADFS supported)  Fine-grained permissions & an API key per user  Integration with (private) SymbolSource repositories  User & Quota management  Repository management  Package Retention Rules  Package Promotion & MirroringJANUARY 16, 2013 | SLIDE 20

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CHANGE OF PERSPECTIVE NuGet as a package manager NuGet as a protocol for distributing packagesJANUARY 16, 2013 | SLIDE 21

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NUGET AS A PROTOCOL  Distributing tools & software  www.Chocolatey.org  “Apt-Get” for Windows  WebPI support  Distributing Web sites  www.OctopusDeploy.com  Build results in .nupkg  Octopus deploys to its tentacles  Test/Staging/Production tentaclesJANUARY 16, 2013 | SLIDE 22

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A GLIMPSE AT THE NUGET ECO-SYSTEM Develop Build Package Share Network Share Collaborate DeployJANUARY 16, 2013 | SLIDE 23

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CAUTION  With great power comes great responsibility  Package creators: behave!  Componentize  Version  Minimal friction  Package publishers: control!  User permissions  Repository contents  Package consumers: validate!  No auto-updatesJANUARY 16, 2013 | SLIDE 24

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OR IN CHICKEN TERMS…JANUARY 16, 2013 | SLIDE 25

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LAST BUT NOT LEAST  NuGet is OSS (Outercurve Foundation)  Microsoft’s involvement  Sponsors development  Results in:  Improved Visual Studio integration  Increased adoption of NuGet  Community involvement  Contribute ideas, code, documentation!  Share experiences, give feedback, submit issues  Discuss: http://jabbr.net/#/rooms/nuget  Package!JANUARY 16, 2013 | SLIDE 26

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CONCLUSION Dependencies & people are chickens Deal with them! NuGet can help NuGet is a tool Improve your process! NuGet can help Consumables vs Consumers Improve your process! NuGet can help NuGet as a package manager NuGet as a protocolJANUARY 16, 2013 | SLIDE 27

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http://www.xavierdecoster.com @xavierdecoster THANK YOU! Questions? Come get your MyGet stickers, you might get lucky! Disclaimer: no chickens were hurt during the making of this presentationJANUARY 16, 2013 | SLIDE 28