/
vzconn_client.go
83 lines (69 loc) · 2.36 KB
/
vzconn_client.go
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/*
* Copyright 2018- The Pixie Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*
* SPDX-License-Identifier: Apache-2.0
*/
package bridge
import (
"context"
"fmt"
"strings"
"time"
"github.com/spf13/pflag"
"github.com/spf13/viper"
"google.golang.org/grpc"
"px.dev/pixie/src/cloud/vzconn/vzconnpb"
"px.dev/pixie/src/shared/services"
)
func init() {
pflag.String("cloud_addr", "vzconn-service.plc.svc:51600", "The Pixie Cloud service url (load balancer/list is ok)")
}
func getCloudAddrFromCRD(vzOperator VizierOperatorInfo) (string, error) {
vz, err := vzOperator.GetVizierCRD()
if err != nil {
return "", err
}
// When cloudConn connects to dev cloud, it should communicate directly with VZConn.
cloudAddr := vz.Spec.CloudAddr
devCloudNamespace := vz.Spec.DevCloudNamespace
if devCloudNamespace != "" {
cloudAddr = fmt.Sprintf("vzconn-service.%s.svc.cluster.local:51600", devCloudNamespace)
}
return cloudAddr, nil
}
// NewVZConnClient creates a new vzconn RPC client stub.
func NewVZConnClient(vzOperator VizierOperatorInfo) (vzconnpb.VZConnServiceClient, error) {
ctxBg := context.Background()
// Get the cloud address - first try the CRD, if it exists.
// If that fails, pull it from the environment for Viziers that are not
// running the operator yet.
cloudAddr, err := getCloudAddrFromCRD(vzOperator)
if err != nil {
cloudAddr = viper.GetString("cloud_addr")
}
isInternal := strings.Contains(cloudAddr, ".svc.cluster.local")
dialOpts, err := services.GetGRPCClientDialOptsServerSideTLS(isInternal)
if err != nil {
return nil, err
}
dialOpts = append(dialOpts, []grpc.DialOption{grpc.WithBlock()}...)
ctx, cancel := context.WithTimeout(ctxBg, 10*time.Second)
defer cancel()
ccChannel, err := grpc.DialContext(ctx, cloudAddr, dialOpts...)
if err != nil {
return nil, err
}
return vzconnpb.NewVZConnServiceClient(ccChannel), nil
}