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Continuous integration sql in the city

Continuous integration sql in the city



Continuous Integration & Continuous Deployment with SQL Databases

Continuous Integration & Continuous Deployment with SQL Databases



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    Continuous integration sql in the city Continuous integration sql in the city Presentation Transcript

    • Continuous Integration By Ike Ellis @ike_ellis www.ikeellis.com Blog.ikeellis.com http://www.linkedin.com/in/ikeellis
    • The Integration/Deployment Process • We do it when we feel like it • We do it daily • We do it on a schedule • We do it at every check-in to source control
    • Continuous Integration Means No Developer Left Behind Time Main Trunk New Dev Working
    • When Integration Time Strikes • Longer Time = More Errors • More errors to solve, means more time to solve errors • Dev continues, prolonging error correcting time • Integration might never happen Time Main Trunk New Dev Working
    • Shorten the Time • Less or no problems to solve • Deployment can always happen • Code on every workstation is in a build ready condition Main Trunk New Dev Working
    • CI Benefits • Avoids the “Works on My PC” syndrome • All developers can get their work deployed and not be left behind • Tests can be run constantly, and breaking tests can generate emails, thus inspiring code confidence • Higher quality in code • Automatically build documentation, remove unneeded files, include dependencies • Increased visibility of project • Deployment can be separate from developers • Easier to deploy dev environment to new developers
    • Working with Legacy Code • First thing we do is deploy • Can we deploy • Is source control accurate?
    • CI Fundamentals • Source Control
    • CI Fundamentals • Build Steps = Automatically Build Stuff = Scripts • Build Triggers = What makes us build? • Build Agents = What can we do in the CI process? • Build Notifications = Who gets told what and when? • Build Correction = What went wrong and who will solve it?
    • CI Products • CruiseControl • JetBrains = TeamCity • MSBuild/TFS • Jenkins • RedGate CI for databases
    • CI Disadvantages • Takes time to setup • You actually have to write tests • Build time should be short. This can take a lot of effort • Wounded pride
    • CI Architecture Dev Environment UAT Environment Production EnvironmentCI CI
    • CI Process (An Example) • Step 1: Check in from source control • Step 2: Build Trigger begins a build, CI takes over • Step 3: CI builds the solution • Step 4: CI runs all the tests • Step 5: CI copies data to a UAT server • Step 6: CI notifies everyone a new build is ready to test
    • CI Best Practices • Check-in several times a day • Merge changes at every check-in • Don’t break the build (Get latest, merge, build, check-in) • If you broke the build, tell everyone, so they can stop getting latest from source control • Don’t check-in until the build is fixed • Notify everyone once the build is fixed – So they can get latest
    • Problems with the database • Source control has been spotty • Willingness to bug fix in production • Thoughts that indexes are not business logic, and thus don’t need to be replicated – So dev/test is not the same as production • Change management has been very difficult – Products often have it wrong • Writing stored procedure/function/SQL tests have not been the easiest thing to write – Think about comparing values from separate stored procedures – Test the weather • Basically, you have to want it and fight for it
    • Demo • TeamCity • Red Gate CI/Team City Integration • Red Gate database source control
    • Ike Ellis • http://blog.ikeellis.com • http://www.ikeellis.com • YouTube – http://www.youtube.com/user/IkeEllisData • SQL Pass Book Readers – http://bookreaders.sqlpass.org/ • San Diego Tech Immersion Group • Twitter: @ike_ellis • 619.922.9801 • Email address is just my first name @ikeellis.com