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# 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
MY_XTRACE=$(set +o | grep xtrace)
set +o xtrace
register_database mysql
# Functions
# ---------
# Get rid of everything enough to cleanly change database backends
function cleanup_database_mysql {
if is_ubuntu; then
# Get ruthless with mysql
stop_service $MYSQL
sudo aptitude purge -y ~nmysql-server
sudo rm -rf /var/lib/mysql
return
elif is_fedora; then
MYSQL=mysqld
elif is_suse; then
MYSQL=mysql
else
return
fi
stop_service $MYSQL
}
function recreate_database_mysql {
local db=$1
local charset=$2
mysql -u$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 $charset;"
}
function configure_database_mysql {
echo_summary "Configuring and starting MySQL"
if is_ubuntu; then
MY_CONF=/etc/mysql/my.cnf
MYSQL=mysql
elif is_fedora; then
MY_CONF=/etc/my.cnf
MYSQL=mysqld
elif is_suse; then
MY_CONF=/etc/my.cnf
MYSQL=mysql
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 (0.0.0.0)
sudo sed -i '/^bind-address/s/127.0.0.1/0.0.0.0/g' $MY_CONF
# Set default db type to InnoDB
if sudo grep -q "default-storage-engine" $MY_CONF; then
# Change it
sudo bash -c "source $TOP_DIR/functions; iniset $MY_CONF mysqld default-storage-engine InnoDB"
else
# Add it
sudo sed -i -e "/^\[mysqld\]/ a \
default-storage-engine = InnoDB" $MY_CONF
fi
# Turn on slow query log
sudo sed -i '/log.slow.queries/d' $MY_CONF
sudo sed -i -e "/^\[mysqld\]/ a \
log-slow-queries = /var/log/mysql/mysql-slow.log" $MY_CONF
# Log all queries (any query taking longer than 0 seconds)
sudo sed -i '/long.query.time/d' $MY_CONF
sudo sed -i -e "/^\[mysqld\]/ a \
long-query-time = 0" $MY_CONF
# Log all non-indexed queries
sudo sed -i '/log.queries.not.using.indexes/d' $MY_CONF
sudo sed -i -e "/^\[mysqld\]/ a \
log-queries-not-using-indexes" $MY_CONF
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.
cat <<MYSQL_PRESEED | sudo debconf-set-selections
mysql-server-5.1 mysql-server/root_password password $DATABASE_PASSWORD
mysql-server-5.1 mysql-server/root_password_again password $DATABASE_PASSWORD
mysql-server-5.1 mysql-server/start_on_boot boolean true
MYSQL_PRESEED
fi
# while ``.my.cnf`` is not needed for OpenStack to function, it is useful
# as it allows you to access the mysql databases via ``mysql nova`` instead
# of having to specify the username/password each time.
if [[ ! -e $HOME/.my.cnf ]]; then
cat <<EOF >$HOME/.my.cnf
[client]
user=$DATABASE_USER
password=$DATABASE_PASSWORD
host=$DATABASE_HOST
EOF
chmod 0600 $HOME/.my.cnf
fi
# Install mysql-server
if is_ubuntu || is_fedora; then
install_package mysql-server
elif is_suse; then
if ! is_package_installed mariadb; then
install_package mysql-community-server
fi
else
exit_distro_not_supported "mysql installation"
fi
}
function database_connection_url_mysql {
local db=$1
echo "$BASE_SQL_CONN/$db?charset=utf8"
}
# Restore xtrace
$MY_XTRACE
# Local variables:
# mode: shell-script
# End: