Managing ibtmp1 File Growth on MySQL 5.7
Unfortunately, all you can do is what said in my earlier post

SET GLOBAL innodb_fast_shutdown = 0;
Shutdown mysqld
delete ibtmp1
Start MySQL DB

ALTERNATIVE
Attach another volume to the VM and map ibtmp1 to that other volume using

innodb_temp_data_file_path (As of MySQL 5.7.1)
innodb_tmpdir (As of MySQL 5.7.11)

Please be sure to read these docs carefully. Also, try to optimize your queries to avoid make large tmp tables.