kolla/docker/mariadb/extend_start.sh

#!/bin/bash

function bootstrap_db {
    mysqld_safe --wsrep-new-cluster &

    # Waiting for deamon
    sleep 10
    expect -c '
    set timeout 10
    spawn mysql_secure_installation
    expect "Enter current password for root (enter for none):"
    send "\r"
    expect "Set root password?"
    send "y\r"
    expect "New password:"
    send "'"${DB_ROOT_PASSWORD}"'\r"
    expect "Re-enter new password:"
    send "'"${DB_ROOT_PASSWORD}"'\r"
    expect "Remove anonymous users?"
    send "y\r"
    expect "Disallow root login remotely?"
    send "n\r"
    expect "Remove test database and access to it?"
    send "y\r"
    expect "Reload privilege tables now?"
    send "y\r"
    expect eof'

    mysql -u root --password="${DB_ROOT_PASSWORD}" -e "GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY '${DB_ROOT_PASSWORD}' WITH GRANT OPTION;"
    mysql -u root --password="${DB_ROOT_PASSWORD}" -e "GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '${DB_ROOT_PASSWORD}' WITH GRANT OPTION;"
    mysqladmin -p"${DB_ROOT_PASSWORD}" shutdown
}

chown mysql: /var/lib/mysql

# This catches all cases of the BOOTSTRAP variable being set, including empty
if [[ "${!KOLLA_BOOTSTRAP[@]}" ]] && [[ ! -e /var/lib/mysql/cluster.exists ]]; then
    ARGS="--wsrep-new-cluster"
    touch /var/lib/mysql/cluster.exists
    mysql_install_db --user=mysql
    bootstrap_db
fi