To provision a Hadoop cluster, a prepared image should be uploaded or existing in Glance. We can start by uploading the image.
To avoid any compatibility issues during installation, it might be required to upload the supported image for the specific plugin. A very fast way is to download prepared images from the OpenStack upstream hosted by Mirantis as the following:
# wget http://sahara-files.mirantis.com/images/upstream/liberty/sahara-liberty-vanilla-2.7.1-centos-7.qcow2
It is possible to build a customized image using the diskimage-builder tool.
To register an image in Sahara, it is required that the image should be uploaded in the glance images catalog. From the Sahara tab in Horizon, click on Image Registry. By clicking on the Register Image button, the next wizard appears. The following settings are...