instruction: Create a Dockerfile for networking
output: ```dockerfile
  from an image registry.
  Use a Device Plugin to access a virtual Trusted Platform Module (TPM), which
  then allows authentication using a private key.
  
  What's next
  
  Learn how to manage your ServiceAccounts as a cluster administrator.
  Learn how to assign a ServiceAccount to a Pod.
  Read the ServiceAccount API reference.
  
  Items on this page refer to third party products or projects that provide functionality required by Kubernetes. The Kubernetes project authors aren't responsible for those third-party products or projects. See the CNCF website guidelines for more details.You should read the content guide before proposing a change that adds an extra third-party link.
  
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  What are service accounts?
  
  Default service accounts
  
  Use cases for Kubernetes service accounts
  How to use service accounts
  
  Grant permissions to a ServiceAccount
  Assign a ServiceAccount to a Pod
  Restricting access to Secrets
  
  Authenticating service account credentials
  
  Authenticating service account credentials in your own code
  
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