Signed-off-by: Petr "Stone" Hracek <[email protected]>

Signed-off-by: Petr "Stone" Hracek <[email protected]>

Signed-off-by: Petr "Stone" Hracek <[email protected]>

Signed-off-by: Petr "Stone" Hracek <[email protected]>

Signed-off-by: Petr "Stone" Hracek <[email protected]>

Signed-off-by: Petr "Stone" Hracek <[email protected]>

…n_plugin variable

In order to maintain strong authentication by default, unless a user changes
the setting by setting MYSQL_AUTHENTICATION_POLICY or MYSQL_DEFAULT_AUTHENTICATION_PLUGIN,
value 'caching_sha2_password,,' will be used, which means caching_sha2_password will be
required as the first factor and 2nd and 3rd factor would be optional.

If MYSQL_DEFAULT_AUTHENTICATION_PLUGIN is set and MYSQL_AUTHENTICATION_POLICY is not,
the authentication_policy will be set to 'MYSQL_DEFAULT_AUTHENTICATION_PLUGIN,,'

procps-ng ships pgrep tool that is used to monitor processes when waiting for mysqld to shutdown properly

the reason is that starting MySQL 8.4, mysql_native_password is not available unless explicitly enabled in the server configuration.

…anyway

Starting 8.0.16, mysql_upgrade became NooP and server executes all actions
automatically when necessary. After mysql_upgrade being labeled as
deprecated since this version, it is missing in 8.4.x entirely.

In addition to that, the file mysql_upgrade_info file has been deprecated
as well and removed in 8.4.x as well, which makes all the tests done
around upgrade and mysql_upgrade_info invalid.

Since we have a recent enough version in production for enough time,
it seems ok to remove the logic about upgrading the datadir entirely from
the container image and leave everything on the server itself.

The only datadir actions that seem to make sense even in 8.4.x are
analyze and optimize, so those are kept untouched.

Many cases were not guarded by ct_check_testcase_result call.

Also removes warnings like:
egrep: warning: egrep is obsolescent; using grep -E

Some mysql_cmd calls and its output is not relevant for tests, do not print it.

Signed-off-by: Petr "Stone" Hracek <[email protected]>

Signed-off-by: Petr "Stone" Hracek <[email protected]>

Signed-off-by: Petr "Stone" Hracek <[email protected]>