functions.sh

#!/bin/bash

write_password_file() {
if [[ -n "${MYSQL_ROOT_PASSWORD}" ]]; then
  cat <<EOF > /root/.my.cnf
  [client]
  user=root
  password=${MYSQL_ROOT_PASSWORD}
EOF
fi
}

init_mysql() {
DATADIR=/var/lib/mysql
# if we have CLUSTER_JOIN - then we do not need to perform datadir initialize
# the data will be copied from another node
if [ ! -e "$DATADIR/mysql" ]; then
	if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" -a -z "$MYSQL_RANDOM_ROOT_PASSWORD" -a -z "$MYSQL_ROOT_PASSWORD_FILE" ]; then
                      echo >&2 'error: database is uninitialized and password option is not specified '
                      echo >&2 '  You need to specify one of MYSQL_ROOT_PASSWORD, MYSQL_ROOT_PASSWORD_FILE,  MYSQL_ALLOW_EMPTY_PASSWORD or MYSQL_RANDOM_ROOT_PASSWORD'
                      exit 1
              fi

	if [ ! -z "$MYSQL_ROOT_PASSWORD_FILE" -a -z "$MYSQL_ROOT_PASSWORD" ]; then
	  MYSQL_ROOT_PASSWORD=$(cat $MYSQL_ROOT_PASSWORD_FILE)
	fi
	mkdir -p "$DATADIR"

	echo "Running --initialize-insecure on $DATADIR"
	ls -lah $DATADIR
	mysqld --initialize-insecure
	chown -R mysql:mysql "$DATADIR"
	chown mysql:mysql /var/log/mysqld.log
	echo 'Finished --initialize-insecure'

	mysqld --user=mysql --datadir="$DATADIR" --skip-networking &
	pid="$!"

	mysql=( mysql --protocol=socket -uroot )

	for i in {30..0}; do
		if echo 'SELECT 1' | "${mysql[@]}" &> /dev/null; then
			break
		fi
		echo 'MySQL init process in progress...'
		sleep 1
	done
	if [ "$i" = 0 ]; then
		echo >&2 'MySQL init process failed.'
		exit 1
	fi

	# sed is for https://bugs.mysql.com/bug.php?id=20545
	mysql_tzinfo_to_sql /usr/share/zoneinfo | sed 's/Local time zone must be set--see zic manual page/FCTY/' | "${mysql[@]}" mysql
	if [ ! -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then
		MYSQL_ROOT_PASSWORD="$(pwmake 128)"
		echo "GENERATED ROOT PASSWORD: $MYSQL_ROOT_PASSWORD"
	fi
	"${mysql[@]}" <<-EOSQL
		-- What's done in this file shouldn't be replicated
		--  or products like mysql-fabric won't work
		SET @@SESSION.SQL_LOG_BIN=0;
		CREATE USER 'root'@'%' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}' ;
		GRANT ALL ON *.* TO 'root'@'%' WITH GRANT OPTION ;
		ALTER USER 'root'@'localhost' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}';
		CREATE USER 'xtrabackup'@'localhost' IDENTIFIED BY '$XTRABACKUP_PASSWORD';
		GRANT RELOAD,PROCESS,LOCK TABLES,REPLICATION CLIENT ON *.* TO 'xtrabackup'@'localhost';
		GRANT REPLICATION CLIENT ON *.* TO monitor@'%' IDENTIFIED BY 'monitor';
		GRANT PROCESS ON *.* TO monitor@localhost IDENTIFIED BY 'monitor';
		DROP DATABASE IF EXISTS test ;
		FLUSH PRIVILEGES ;
EOSQL
	if [ ! -z "$MYSQL_ROOT_PASSWORD" ]; then
		mysql+=( -p"${MYSQL_ROOT_PASSWORD}" )
	fi

	if [ "$MYSQL_DATABASE" ]; then
		echo "CREATE DATABASE IF NOT EXISTS \`$MYSQL_DATABASE\` ;" | "${mysql[@]}"
		mysql+=( "$MYSQL_DATABASE" )
	fi

	if [ "$MYSQL_USER" -a "$MYSQL_PASSWORD" ]; then
		echo "CREATE USER '"$MYSQL_USER"'@'%' IDENTIFIED BY '"$MYSQL_PASSWORD"' ;" | "${mysql[@]}"

		if [ "$MYSQL_DATABASE" ]; then
			echo "GRANT ALL ON \`"$MYSQL_DATABASE"\`.* TO '"$MYSQL_USER"'@'%' ;" | "${mysql[@]}"
		fi

		echo 'FLUSH PRIVILEGES ;' | "${mysql[@]}"
	fi

	if [ ! -z "$MYSQL_ONETIME_PASSWORD" ]; then
		"${mysql[@]}" <<-EOSQL
			ALTER USER 'root'@'%' PASSWORD EXPIRE;
EOSQL
	fi
	if ! kill -s TERM "$pid" || ! wait "$pid"; then
		echo >&2 'MySQL init process failed.'
		exit 1
	fi

	echo
	echo 'MySQL init process done. Ready for start up.'
	echo
	#mv /etc/my.cnf $DATADIR
fi

}