Support for s3 backend of glance

This commit introduces support for s3 backend for glance.
You can enabled it in your deployment by adding below options in
your local.conf file.

For single store support:
enable_service s3api s-proxy s-account s-container
disable_service tls-proxy
GLANCE_USE_S3 = True

For multistore support:
enable_service s3api s-proxy s-account s-container
disable_service tls-proxy
GLANCE_USE_S3 = True
GLANCE_ENABLE_MULTIPLE_STORES: True

NOTE: At the moment devstack does not support tls with s3, this
support will be added soon.

Needed-By: https://review.opendev.org/c/openstack/glance/+/934311
Change-Id: Ic7264dc7faccb5e68c8df3b929eaa6d04149c6a2
1 file changed