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pbanaszkiewicz/MIGRATIONS_README.rst

Last active December 19, 2015 11:48
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Managing migrations for Ganeti Web Manager
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MIGRATIONS_README.rst

MIGRATIONS

During Ganeti Web Manager refactoring one huge application (ganeti_web) was turned into many smaller applications (actual list: authentication, clusters, django_test_tools, ganeti_web, jobs, muddle, muddle_users, nodes, utils, virtualmachines, vm_templates).

However, over 19 migrations are still placed in ganeti_web application. How to make them work? My idea is as follows:

  • Run ganeti_web migrations first
  • (fake migration 0008, because it fails; then continue ganeti_web migrations) -- not true anymore, I just commented out that migration
  • run schema migrations for other apps (only change table names)
  • proceed with any other (future) migrations

Writing new migrations

Because there are no models in ganeti_web, developers shouldn't create any migrations for this application. Instead, create migrations for specific applications -- just remember to proceed with bigger migration number.

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