istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pkg/test/echo/common/scheme/scheme.go (about)

     1  //  Copyright Istio Authors
     2  //
     3  //  Licensed under the Apache License, Version 2.0 (the "License");
     4  //  you may not use this file except in compliance with the License.
     5  //  You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  //  Unless required by applicable law or agreed to in writing, software
    10  //  distributed under the License is distributed on an "AS IS" BASIS,
    11  //  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  //  See the License for the specific language governing permissions and
    13  //  limitations under the License.
    14  
    15  package scheme
    16  
    17  // Scheme enumerates the optional schemes for requests.
    18  type Instance string
    19  
    20  const (
    21  	HTTP      Instance = "http"
    22  	HTTPS     Instance = "https"
    23  	GRPC      Instance = "grpc"
    24  	XDS       Instance = "xds"
    25  	WebSocket Instance = "ws"
    26  	TCP       Instance = "tcp"
    27  	UDP       Instance = "udp"
    28  	// TLS sends a TLS connection and reports back the properties of the TLS connection
    29  	// This is similar to `openssl s_client`
    30  	// Response data is not returned; only information about the TLS handshake.
    31  	TLS Instance = "tls"
    32  	// DNS does a DNS query and reports back the results.
    33  	DNS Instance = "dns"
    34  )