Keystone audit middleware requires to iterate req.context as dict,
but Glance requires to access req.context.read_only.
When glance enabled audit, they are conflict with each other.
This patch fix this issue by store audit context in
req.environ['audit.context']
Change-Id: Ib9a62a4cd0b7b9ffb9fa2d6440e8072d45ee0fee
Closes-Bug: #1809101
Signed-off-by: Leehom Li <feli5@cisco.com>
Leehom Li (feli5)