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Adding New Project Types

Adding and maintaining project types (like typo3, magento2, etc.) is not too hard. Please update and add to this doc when you find things that have been missed.

To add a new project type:

  • Add the new type to the list in nodeps.go
  • Add to appTypeMatrix in apptypes.go
  • Create a new go file for your project type, like django.go.
  • Implement the functions that you think are needed for your project type and add references to them in your appTypeMatrix stanza. There are lots of examples that you can start with in places like drupal.go and typo3.go, shopware6.go, etc. The comments in the code in apptypes.go for the appTypeFuncs for each type of action tell what these are for, but here's a quick summary.
    • settingsCreator is the function that will create a main settings file if none exists.
    • uploadDir returns the filepath of the user-uploaded files directory for the project type, like sites/default/files for Drupal or pub/media for magento2.
    • hookDefaultComments adds comments to config.yaml about hooks with an example for that project type. It's probably not useful at all.
    • apptypeSettingsPaths returns the paths for the main settings file and the extra settings file that ddev may create (like settings.ddev.php for Drupal).
    • appTypeDetect is a function that determines whether the project is of the type you're implementing.
    • postImportDBAction can do something after db import. I don't see it implemented anywhere.
    • configOverrideAction can change default config for your project type. For example, magento2 now requires php8.1, so a configOverrideAction can change the php version.
    • postConfigAction gives a chance to do something at the end of config... but it doesn't seem to be used anywhere.
    • postStartAction adds actions at the end of ddev start. You'll see several implementations of this, for things like creating needed default directories, or setting permissions on files, etc.
    • importFilesAction defines how ddev import-files works for this project type.
    • defaultWorkingDirMap allows the project type to override the project's working_dir (where ddev ssh and ddev exec start by default). This is mostly not done any more, as the working_dir is typically the project root.
  • You'll likely need templates for settings files, use the drupal or typo3 templates as examples, for example pkg/ddevapp/drupal and pkg/ddevapp/typo3. Those templates have to be loaded at runtime as well.
  • Once your project type starts working and behaving the way you want it to, you'll need to add test artifacts for it and try testing it (locally first).
    • Add your project to TestSites in ddevapp_test.go.
    • Create a DDEV project named testpkg<projectype> somewhere and get it going and working with a database and files you can export.
    • Export the database, files, and (optionally) code to tarballs or .sql.gz. Put them somewhere on the internet- they'll end up in drud/ddev_test_tarballs - I can give you permissions on that if you like. The magento2 project has descriptions explaining how each tarball gets created. Do that for yours as well.
    • Run the test and get it working. I usually use the trick of setting GOTEST_SHORT=<element_in_TestSites>, like GOTEST_SHORT=7. Then set that environment variable in the Goland profile or your environment. export GOTEST_SHORT=7 && make testpkg TEST_ARGS="-run TestDdevFullsiteSetup"

Last update: July 7, 2022