tls_server_config :
  cert_file : "testdata/server.crt"
  key_file : "testdata/server.key"
  client_auth_type : "VerifyClientCertIfGiven"
  client_ca_file : "testdata/tls-ca-chain.pem"
  cipher_suites:
  - TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA2048