#!/bin/bash # # lib/databases/mysql # Functions to control the configuration and operation of the **MySQL** database backend # Dependencies: # # - DATABASE_{HOST,USER,PASSWORD} must be defined # Save trace setting _XTRACE_DB_MYSQL=$(set +o | grep xtrace) set +o xtrace MYSQL_DRIVER=${MYSQL_DRIVER:-PyMySQL} register_database mysql # Linux distros, thank you for being incredibly consistent MYSQL=mysql if is_fedora && ! is_oraclelinux; then MYSQL=mariadb fi # Functions # --------- function get_database_type_mysql { if [[ "$MYSQL_DRIVER" == "PyMySQL" ]]; then echo mysql+pymysql else echo mysql fi } # Get rid of everything enough to cleanly change database backends function cleanup_database_mysql { stop_service $MYSQL if is_ubuntu; then # Get ruthless with mysql apt_get purge -y mysql* mariadb* sudo rm -rf /var/lib/mysql sudo rm -rf /etc/mysql return elif is_suse || is_oraclelinux; then uninstall_package mysql-community-server sudo rm -rf /var/lib/mysql elif is_fedora; then uninstall_package mariadb-server sudo rm -rf /var/lib/mysql else return fi } function recreate_database_mysql { local db=$1 mysql -u$DATABASE_USER -p$DATABASE_PASSWORD -h$MYSQL_HOST -e "DROP DATABASE IF EXISTS $db;" mysql -u$DATABASE_USER -p$DATABASE_PASSWORD -h$MYSQL_HOST -e "CREATE DATABASE $db CHARACTER SET utf8;" } function configure_database_mysql { local my_conf mysql slow_log echo_summary "Configuring and starting MySQL" if is_ubuntu; then my_conf=/etc/mysql/my.cnf mysql=mysql elif is_suse || is_oraclelinux; then my_conf=/etc/my.cnf mysql=mysql elif is_fedora; then mysql=mariadb my_conf=/etc/my.cnf else exit_distro_not_supported "mysql configuration" fi # Start mysql-server if is_fedora || is_suse; then # service is not started by default start_service $mysql fi # Set the root password - only works the first time. For Ubuntu, we already # did that with debconf before installing the package. if ! is_ubuntu; then sudo mysqladmin -u root password $DATABASE_PASSWORD || true fi # Update the DB to give user '$DATABASE_USER'@'%' full control of the all databases: sudo mysql -uroot -p$DATABASE_PASSWORD -h127.0.0.1 -e "GRANT ALL PRIVILEGES ON *.* TO '$DATABASE_USER'@'%' identified by '$DATABASE_PASSWORD';" # Now update ``my.cnf`` for some local needs and restart the mysql service # Change bind-address from localhost (127.0.0.1) to any (::) and # set default db type to InnoDB iniset -sudo $my_conf mysqld bind-address "$SERVICE_LISTEN_ADDRESS" iniset -sudo $my_conf mysqld sql_mode STRICT_ALL_TABLES iniset -sudo $my_conf mysqld default-storage-engine InnoDB iniset -sudo $my_conf mysqld max_connections 1024 iniset -sudo $my_conf mysqld query_cache_type OFF iniset -sudo $my_conf mysqld query_cache_size 0 if [[ "$DATABASE_QUERY_LOGGING" == "True" ]]; then echo_summary "Enabling MySQL query logging" if is_fedora; then slow_log=/var/log/mariadb/mariadb-slow.log else slow_log=/var/log/mysql/mysql-slow.log fi sudo sed -e '/log.slow.queries/d' \ -e '/long.query.time/d' \ -e '/log.queries.not.using.indexes/d' \ -i $my_conf # Turn on slow query log, log all queries (any query taking longer than # 0 seconds) and log all non-indexed queries iniset -sudo $my_conf mysqld slow-query-log 1 iniset -sudo $my_conf mysqld slow-query-log-file $slow_log iniset -sudo $my_conf mysqld long-query-time 0 iniset -sudo $my_conf mysqld log-queries-not-using-indexes 1 fi restart_service $mysql } function install_database_mysql { if is_ubuntu; then # Seed configuration with mysql password so that apt-get install doesn't # prompt us for a password upon install. sudo debconf-set-selections <$HOME/.my.cnf [client] user=$DATABASE_USER password=$DATABASE_PASSWORD host=$MYSQL_HOST EOF chmod 0600 $HOME/.my.cnf fi # Install mysql-server if is_suse || is_oraclelinux; then if ! is_package_installed mariadb; then install_package mysql-community-server fi elif is_fedora; then install_package mariadb-server sudo systemctl enable mariadb elif is_ubuntu; then install_package mysql-server else exit_distro_not_supported "mysql installation" fi } function install_database_python_mysql { # Install Python client module pip_install_gr $MYSQL_DRIVER if [[ "$MYSQL_DRIVER" == "MySQL-python" ]]; then ADDITIONAL_VENV_PACKAGES+=",MySQL-python" elif [[ "$MYSQL_DRIVER" == "PyMySQL" ]]; then ADDITIONAL_VENV_PACKAGES+=",PyMySQL" fi } function database_connection_url_mysql { local db=$1 echo "$BASE_SQL_CONN/$db?charset=utf8" } # Restore xtrace $_XTRACE_DB_MYSQL # Local variables: # mode: shell-script # End: