billed monthly based on monthly usage. • EC2 - Provides resizable compute facility on top of Amazon cloud. • EBS – Block Level storage like online NAS for EC2 particularly for database, file system • S3 - Store and retrieve objects • Cloud Front – low latency content distribution
Storage(swift) – Redundant Storage Service • Image Service(glance) – Registration and Provisioning of Disk images • Dashboard (horizon) – Manage images and lifecycle of instances • Identity Management(keystone) – Policy, Token and Catalog