DDEV: Misc

Upgrading database

Example: upgrade MariaDB from 10.4 to 10.8

The easy way

• change database version in DDEV configuration, restart;
• If errors ("Unable to start project because the configured database type does not match the current actual database"), go for the hard way.

The hard way

• backup yourself any databases you want to keep, DDEV will destroy all;
  • use phpMyAdmin or CLI, DDEV snapshots will not work
• ddev start (do not change configuration by hand);
• ddev debug migrate-database mariadb:10.8
  • DDEV will promise to import back the databases however:
    • it will only handle the db database, any custom databases will only be destroyed;
    • even for the db the import will sometimes fail;

Other solutions

• Untested: steps described in this bug report

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