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connection.go
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connection.go
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/*
* Tencent is pleased to support the open source community by making Blueking Container Service available.
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* Licensed under the MIT License (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
* http://opensource.org/licenses/MIT
* Unless required by applicable law or agreed to in writing, software distributed under
* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package driver
import (
"bytes"
"fmt"
"io/ioutil"
"net"
"net/http"
"time"
"github.com/Tencent/bk-bcs/bcs-common/common/blog"
protoExec "github.com/Tencent/bk-bcs/bcs-mesos/bcs-process-executor/process-executor/protobuf/executor"
"github.com/golang/protobuf/proto"
)
type HttpConnection struct {
endpoint string //remote http endpoint info
uri string //remote http endpoint uri
streamID string //http header Mesos-Stream-Id
client *http.Client
}
func NewHttpConnection(endpoint, uri string) *HttpConnection {
httpTransport := &http.Transport{
Dial: (&net.Dialer{
Timeout: 5 * time.Second,
KeepAlive: 30 * time.Second,
}).Dial,
ResponseHeaderTimeout: 5 * time.Second,
}
return &HttpConnection{
endpoint: endpoint,
uri: uri,
client: &http.Client{
Transport: httpTransport,
},
}
}
func (conn *HttpConnection) Send(call *protoExec.Call, keepAlive bool) (*http.Response, error) {
//create targetURL
targetURL := fmt.Sprintf("%s%s", conn.endpoint, conn.uri)
// proto serialization
payLoad, err := proto.Marshal(call)
if err != nil {
blog.Errorf("proto.Marshal call error %s", err.Error())
return nil, err
}
//create http request
request, err := http.NewRequest("POST", targetURL, bytes.NewReader(payLoad))
if err != nil {
blog.Errorf("NewRequest url %s error %s", targetURL, err.Error())
return nil, err
}
request.Header.Set("Content-Type", "application/x-protobuf")
request.Header.Set("Accept", "application/json")
request.Header.Set("User-Agent", "bcs-container-executor/1.0")
request.Header.Set("Connection", "Keep-Alive")
response, err := conn.client.Do(request)
if err != nil {
blog.Errorf("conn request uri %s error %s", targetURL, err.Error())
return nil, err
}
if response.StatusCode != http.StatusAccepted && response.StatusCode != http.StatusOK {
reply, _ := ioutil.ReadAll(response.Body)
err = fmt.Errorf("request url %s response statuscode %d body %s", targetURL, response.StatusCode, string(reply))
blog.Errorf(err.Error())
return nil, err
}
if keepAlive {
return response, nil
}
response.Body.Close()
return nil, nil
}