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image.png Glance is OpenStack's image management service. It manages the discovery, registration and retrieval of virtual machine images. It allows to query the metadata of virtual machine images and to retrieve the actual image.

Main features

  • Manages the image catalog and their metadata (OS, architecture...)
  • Stores and distributes the images of instances
  • Works in tandem with Nova for the creation of new instances
  • Glance allows you to organize your images according to different characteristics:
    • By operating system
    • Architecture (32Bits or 64Bits)
    • Visibility (public, private, community)
  • Images are used in root volumes only
  • Images have a unique identifier
  • Glance uses Swift to store images

OpenStack Documentation