SDC Sweden - Organize your chickens - NuGet for the Enterprise

APRIL 16, 2012 | SLIDE 1

Organize Your Chickens NuGet for the Enterprise Maarten Balliauw @maartenballiauwAPRIL 16, 2012 | SLIDE 2

Organize Your Chickens NuGet for the EnterpriseAPRIL 16, 2012 | SLIDE 3

Who am I?  Maarten Balliauw  Antwerp, Belgium  www.realdolmen.com  Focus on web  ASP.NET MVC, Windows Azure, SignalR, ...  MVP Windows Azure & ASPInsider  http://blog.maartenballiauw.be  @maartenballiauw  Author: Pro NuGet - http://amzn.to/pronugetAPRIL 16, 2012 | SLIDE 4

Agenda  NuGet  Scenarios  Host your own NuGet repository  Continuous Package Integration Chickens?!  Abusing NuGet  NuGet Inception  ConclusionAPRIL 16, 2012 | SLIDE 5

NuGetAPRIL 16, 2012 | SLIDE 6

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)APRIL 16, 2012 | SLIDE 7

Cause and Effect  Reinventing the wheel  We don’t need that dependency  “If they can do it, we can do it, but better”  What happened to reuse of components?  Marketing-Driven Versioning  People are waiting for v2 to buy  Let’s call it v4 Platform Update SP3 November Edition KB2348063 RTW Refresh  We lost ownership of AssemblyVersion ?APRIL 16, 2012 | SLIDE 8

Package Management  NuGet to the Rescue! “NuGet is a Visual Studio extension that makes it easy to install and update open source libraries and tools in Visual Studio.”  Simple concept  Find Packages  (Re)Use Packages  Produce PackagesAPRIL 16, 2012 | SLIDE 9

Demo Finding & consuming a NuGet packageAPRIL 16, 2012 | SLIDE 10

Demo Creating & publishing a NuGet packageAPRIL 16, 2012 | SLIDE 11

Semantic Versioning  Think about your versioning! (semver.org) Major Breaking changes Minor Backwards compatible API additions/changes Patch Bugfixes not affecting the API  Always specify lowerbound  Use a version range (lowerbound + upperbound) when versioning of package you depend on is messed upAPRIL 16, 2012 | SLIDE 12

Hosting a repositoryAPRIL 16, 2012 | SLIDE 13

Hosting your own repository  NuGet = public feed  Privacy  Intellectual property  NuGet maintained by package authors  Author removes v1.0.45 and you depend on itAPRIL 16, 2012 | SLIDE 14

Solutions  Folder / File share  NuGet.Server package  NuGet Gallery (or Orchard Gallery)  MyGetAPRIL 16, 2012 | SLIDE 15

Demo NuGet.ServerAPRIL 16, 2012 | SLIDE 16

NuGet.Server limitations  Only 1 feed per installation  No UI  up to you to build it  No granular security  only 1 API-key for entire feed  Conclusion: requires you to develop if you want something more usefulAPRIL 16, 2012 | SLIDE 17

Meet MyGet  www.myget.org  NaaS  Register and off you go!  Supports Enterprise scenarios  Granular security  Package mirroring  ProxyingAPRIL 16, 2012 | SLIDE 18

Demo MyGetAPRIL 16, 2012 | SLIDE 19

Continuous Package IntegrationAPRIL 16, 2012 | SLIDE 20

Typical source control...  Contains /References (if you are lucky)  ...and also Project/_bin_deployable_assemblies  ...and also /References/old  ...and also /..././../.././References  Usually references GAC-ed assembliesAPRIL 16, 2012 | SLIDE 21

Dependencies  Software has dependencies. Deal with it.  But are those YOUR intellectual property?  YOUR reason to build software?  YOUR product?  No. They are dependencies. And they don’t belong in source control.APRIL 16, 2012 | SLIDE 22

Continuous Package Integration  Can I get rid of all these referenced assemblies duplicated all-over my source control system? Yes!  Do I need to install and maintain NuGet on all my build agents? No!APRIL 16, 2012 | SLIDE 23

Demo Package RestoreAPRIL 16, 2012 | SLIDE 24

3rd parties don’t belong in your VCS  Replace them with NuGet packages  Do commit packagesrepositories.config file  Use Enable-PackageRestoreAPRIL 16, 2012 | SLIDE 25

Problem!  NuGet feed is subject to change...  PackageSource msbuild property to the rescue (NuGet.settings.targets in $(SolutionDir).nuget folder)  Now what...  Host your own feed and mirror packages  Or use MyGet for that APRIL 16, 2012 | SLIDE 26

Organize your chickens  Feed structuring  Scoped by quality: Build, QA, Production, …  Scoped by audience: public, restricted access  Other:  Scoped by product version, milestone…  Scoped by target platformAPRIL 16, 2012 | SLIDE 27

Guidance  Publishing a package brings great responsibility  Breaking changes in your packages should be versioned accordingly!  Consumers might choose to no longer consume any packages you publishedAPRIL 16, 2012 | SLIDE 28

Guidance  Package Integration ≠ Integration Testing  CI builds reflect output of source control input  Same input always produces same output  Do not auto-update packages during automated buildsAPRIL 16, 2012 | SLIDE 29

Abusing NuGetAPRIL 16, 2012 | SLIDE 30

Abusing NuGet? Change of perspective NuGet is a package manager NuGet is a protocol for distributing packagesAPRIL 16, 2012 | SLIDE 31

NuGet as a ProtocolAPRIL 16, 2012 | SLIDE 32

Chocolatey  NuGet  developer library packages  Chocolatey  applications and tools packager  “yum” or “apt-get” for Windows  www.chocolatey.orgAPRIL 16, 2012 | SLIDE 33

Demo ChocolateyAPRIL 16, 2012 | SLIDE 34

Automate deployments  Build results in .nupkg  Octopus deploys to its tentacles  Test tentacles  Staging tentacles  Production tentacles  www.octopusdeploy.comAPRIL 16, 2012 | SLIDE 35

APRIL 16, 2012 | SLIDE 36

Build Test Package Push Release / Publish Deploy Demo Continuous DeliveryAPRIL 16, 2012 | SLIDE 37

Conclusion Dependencies & people are chickens Deal with them! NuGet can help Set up your own NuGet repository Continuous package integration NuGet is a package manager NuGet is a protocolAPRIL 16, 2012 | SLIDE 38

http://blog.maartenballiauw.be @maartenballiauw http://amzn.to/pronuget or Install-Package ProNuGetTHANK YOU!APRIL 16, 2012 | SLIDE 39

SDC Sweden - Organize your chickens - NuGet for the Enterprise

by Maarten Balliauw

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