@type t() :: %DockerEngineAPI.Model.SwarmSpecCaConfig{
  ExternalCAs:
    [DockerEngineAPI.Model.SwarmSpecCaConfigExternalCasInner.t()] | nil,
  ForceRotate: integer() | nil,
  NodeCertExpiry: integer() | nil,
  SigningCACert: String.t() | nil,
  SigningCAKey: String.t() | nil
}