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Eli's Continuous Delivery Project

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Revision as of 12:20, 27 April 2012 by tarwn (Talk | contribs)

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Project Overview

In early November I decided to implement a small Continuous Delivery project to give me a foundation for future projects and to get some more experience with build processes and automation. I chose the ASP.Net MVC MusicStore tutorial project as my guinnea pig and built a framework around it.

Continuous Delivery

Continuous Delivery focuses on standardizing the environments and processes for product delivery, with an aim to create a clear and consistent process from committing new code to having a deliverable product. Creating a consistent process reduces variability and risks involved with manual deployment, ensures all "ready to be released" products meet our build and testing standards, creates a faster feedback loop so that problems are detected sooner (and thus can be fixed cheaper), and adds a level of auditability that rarely exists with manual deployment processes.

Useful Links:

Blog Posts

These are the posts that I created out of the work log/notes I took while implementing the project, starting with a general overview and then working through the details.

Later Posts:

As I continue to use this project for new and interesting experiments, I'll add the links above, even if they don't have much to do with Continuous Delivery itself.

Relevant Links

This section is relevant live links for code and deployed artifacts.


Later Additions

This is a brief list of items that have been added after the initial blog series was completed. Changes here may be reflected in various code repositories or on the 'production' site.

  • Centralized Settings - Converted all jobs to use a settings file for passwords, server names, and URLs using Jenkins EnvFile Plugin
  • Versioned Job Configs - Added all Jenkins configs to a Hg repository and setup a job to automatically push updated configs to central Hg repository (currently private because I'm paraniod I'll accidentally check in some credentials)
  • Static Code Analysis - Added a Gendarme run and the Jenkins Violations plugin to capture the results
  • Additional Analysis via Static Analysis plugins
  • BDD Tests - Added SpecFlow to the InterfaceTests project and started building out more extensive coverage
  • Load Tests - Adding a load testing build step to load test a deployed site and graph results over time

I'll continue to add items as I do them and may post some later blog posts for some of these.

Technology Choices

The project required the use of a number of different technologies along the way. This is a list of the main ones:

VMWare Server
Hosted the Build Server and Beta Server
Windows 2008 Server
OS for the Build and Beta servers
ASP.Net MVC 3
Development stage, to get more practice with MVC
Entity Framework
Development stage, I don't really care for entity framework, so I'm trying to use it more
MS Test
Development stage, I like MS Test for the dev stage because of it's integration into Visual Studio
Mercurial
Source Control, local and BitBucket
Jenkins
Jenkins, I'd heard good things about it, lots of plugins, I'd only ever used TFS in the past for CI and Chrissie already has posts on TeamCity :)
MS Build
CI Stage, MS Build to build the code, transform configurations, and create the deployment package
IIS 7
Deploy Steps, IIS 7 supports the new WebDeploy capabilities, which will make deployment much easier
MS Deploy
Deploy Steps, I haven't had an opportunity to do more than push the "Deploy" button in WebMatrix, looking forward to getting more in depth with WebDeploy
VBScript
Deploy Steps, A small vbscript capable of using XMLHTTP to make raw HTTP GET requests (potentially switch to PowerShell later)
Nunit
Automated Test Stage, Platform and testrunner for the automated interface tests
Selenium WebDriver
Automated Test Stage, Automated interface testing to be driven by the Nunit framework
Build Pipeline Plugin
Dashboard, There is a build pipeline plugin for Jenkins that I intend to try out
Twitter
Communications, I'll be using twitter for status notifications at each stage

Jenkins Plugins

This is the list of the Jenkins plugins used over the course of the project.

The version of Jenkins updated several times during the post, the latest version used with the blog post series was 1.442 (though I have another update to apply tonight to 1.443).

What I Skipped

There were several places I skipped over things that would be part of a production pipeline. The notable items are:

  • Administrator Accounts - I am using local administrator accounts for deployments due to the time limitations and my level of annoyance with MSDeploy
  • Database Deployment - The database is using Compact SQL and checked in and deployed as part of the project - this allowed me to skip database deployments but wouldn't be workable in a production environment
  • Limited Test Coverage - I created enough tests to be used in their respective stages, but unit test coverage was limited and I can't bring myself to call the interface tests acceptance tests because they were even more limited
  • Configuration Management - There isn't any, mostly because of the shortcut with Database Deployment

832 Rating: 3.5/5 (44 votes cast)