instruction: Explain Docker Build Cloud
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  Docker Build Cloud is a service that lets you build your container images
  faster, both locally and in CI. Builds run on cloud infrastructure optimally
  dimensioned for your workloads, no configuration required. The service uses a
  remote build cache, ensuring fast builds anywhere and for all team members.
  How Docker Build Cloud works
  Using Docker Build Cloud is no different from running a regular build. You invoke a
  build the same way you normally would, using
  docker buildx build
  . The
  difference is in where and how that build gets executed.
  By default when you invoke a build command, the build runs on a local instance
  of BuildKit, bundled with the Docker daemon. With Docker Build Cloud, you send
  the build request to a BuildKit instance running remotely, in the cloud.
  All data is encrypted in transit.
  The remote builder executes the build steps, and sends the resulting build
  output to the destination that you specify. For example, back to your local
  Docker Engine image store, or to an image registry.
  Docker Build Cloud provides several benefits over local builds:
  Improved build speed
  Shared build cache
  Native multi-platform builds
  And the best part: you don't need to worry about managing builders or
  infrastructure. Just connect to your builders, and start building.
  Each cloud builder provisioned to an organization is completely
  isolated to a single Amazon EC2 instance, with a dedicated EBS volume for build
  cache, and encryption in transit. That means there are no shared processes or
  data between cloud builders.
  Note
  Docker Build Cloud is currently only available in the US East region. Users
  in Europe and Asia may experience increased latency compared to users based
  in North America.
  Support for multi-region builders is on the roadmap.
  Get Docker Build Cloud
  To get started with Docker Build Cloud,
  create a Docker account
  . There are two options
  to get access to Docker Build Cloud:
  Users with a free Personal account can opt-in to a 7-day free trial, with the option
  to Docker Build Cloud Dashboard
  and follow the on-screen instructions.
  All users with a paid Docker subscription have access to Docker Build Cloud included
  with their Docker suite of products. See
  Docker subscriptions and features
  for more information.
  Once you've signed up and created a builder, continue by
  setting up the builder in your local environment
  For information about roles and permissions related to Docker Build Cloud, see
  Roles and Permissions