is a method in jclouds ec2 api. So can some one point out me a method or another way for get all configured regions in cloudstack?
Are you talking about these kind of regions [1]? Could you link to the actual CloudStack API call that you would make to retrieve the information you're looking for?
Regards ap[1] https://cloudstack.apache.org/docs/en-US/Apache_CloudStack/4.1.0/html/Installation_Guide/about-regions.html
