our install script looks like this

basedir='/srv/slapgrid/slappart10/srv//runner//shared/mariadb/56de580c35c9de920a80ce14a4d4c974'
datadir='/srv/slapgrid/slappart10/srv/runner/instance/slappart3/srv/mariadb'
[ -e "$datadir" ] ||

{ rm -vrf "$datadir.new" "$basedir/scripts/mysql_install_db" \ --defaults-file='/srv/slapgrid/slappart10/srv/runner/instance/slappart3/etc/mysql/my.cnf' \ --skip-name-resolve \ --auth-root-authentication-method=normal \ --basedir="$basedir" --plugin_dir="$basedir/lib/plugin" \ --datadir="$datadir.new" mv -v "$datadir.new" "$datadir" }

ODBCSYSINI='/srv/slapgrid/slappart10/srv/runner/instance/slappart3/etc' \
LD_LIBRARY_PATH=${LD_LIBRARY_PATH:+$LD_LIBRARY_PATH:}'/srv/slapgrid/slappart10/srv//runner//shared/unixodbc/1d4d2c49a7c6207c3cdd7305997e86dc/lib' \
exec "$basedir/bin/mysqld" --defaults-file='/srv/slapgrid/slappart10/srv/runner/instance/slappart3/etc/mysql/my.cnf' "$@"

When a config file is included with plugin_load_add=ha_spider.so

Install will failed and let the mysqld in defunc state

While without that option install script works and restarting the server with the option install the plugin, so preconfigured config like used in some cloud provisioning won't work for deploying spider from init container .