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User creation has changed in MySQL 8.0

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Created on 4 June 2020, over 5 years ago
Updated 15 February 2024, over 1 year ago

Problem

When verifying a (remote) server running MySQL 8.0 (default on Ubuntu 20.04), we get:

Unable to grant privileges to database users.

This appears to be due to no longer being able to implicitly create a user using GRANT. The supported syntax now requires two statements:

CREATE USER 'username' IDENTIFIED BY 'password';
GRANT alter,create,delete,[...] ON database.* TO 'username';

This is handled in Provision_Service_db_mysql::grant(), where we call:

$this->query("GRANT ALL PRIVILEGES ON `%s`.* TO `%s`@`%s` IDENTIFIED BY '%s'", $name, $username, $host, $password)

The 2-statement syntax (CREATE USER,then GRANT) appears to be backwards compatible to MySQL 5, so we could:

  1. update the syntax in grant();
  2. add a new create_user() method (called from grant()?);
  3. determine the version of MySQL and switch syntax based on that; or
  4. subclass Provision_Service_db_mysql and override grant() with the new syntax.

Remaining tasks

  2. The second one needs testing still.
  3. For the MariaDB problem (#16) , I think we can add that to the release notes.
🐛 Bug report
Status

Fixed

Version

3.0

Component

DB Service

Created by

🇨🇦Canada ergonlogic Montréal, Québec 🇨🇦

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