github.com/joomcode/cue@v0.4.4-0.20221111115225-539fe3512047/pkg/joom/devenv/client.go (about)

     1  package devenv
     2  
     3  import (
     4  	"context"
     5  	"fmt"
     6  	"log"
     7  
     8  	pb "github.com/joomcode/cue/pkg/joom/devenv/proto"
     9  	"google.golang.org/grpc"
    10  	"google.golang.org/grpc/credentials"
    11  	"google.golang.org/protobuf/types/known/emptypb"
    12  )
    13  
    14  type DevEnvManagerClient struct {
    15  	host string
    16  	port uint16
    17  }
    18  
    19  func NewDevEnvManagerClient(host string, port uint16) *DevEnvManagerClient {
    20  	return &DevEnvManagerClient{host: host, port: port}
    21  }
    22  
    23  func NewDefaultDevEnvClient() *DevEnvManagerClient {
    24  	return NewDevEnvManagerClient("dns:///infra.hoffman.grpc.joom.it", 443)
    25  }
    26  
    27  func (demc *DevEnvManagerClient) dial() *grpc.ClientConn {
    28  	connectionString := fmt.Sprintf("%s:%d", demc.host, demc.port)
    29  	//fmt.Printf("Establishing connection to %s...\n", connectionString)
    30  	insecureTlsCreds := credentials.NewClientTLSFromCert(nil, "")
    31  	connection, err := grpc.Dial(connectionString, grpc.WithTransportCredentials(insecureTlsCreds))
    32  	if err != nil {
    33  		log.Fatalf("did not connect: %v", err)
    34  	}
    35  	return connection
    36  }
    37  
    38  func (demc *DevEnvManagerClient) ListDevClusters(maxCount int) []string {
    39  	connection := demc.dial()
    40  	if connection == nil {
    41  		return []string{}
    42  	}
    43  	defer connection.Close()
    44  
    45  	c := pb.NewClusterStateClient(connection)
    46  	r, err := c.ListClusters(context.Background(), &emptypb.Empty{})
    47  	if err != nil {
    48  		log.Fatalf("failed to get clusters list: %v", err)
    49  		return []string{}
    50  	}
    51  	if errResp := r.GetErrorResponse(); errResp != nil {
    52  		log.Fatalf("invalid response: %v", errResp.String())
    53  		return []string{}
    54  	}
    55  
    56  	resp := r.GetSuccessResponse()
    57  	var result []string
    58  	if resp != nil {
    59  		for _, cluster := range resp.Clusters {
    60  			if cluster.Id.EnvType == "dev" {
    61  				result = append(result, cluster.Id.Name)
    62  				if len(result) >= maxCount {
    63  					break
    64  				}
    65  			}
    66  		}
    67  	}
    68  	return result
    69  }
    70  
    71  type ClusterInfo struct {
    72  	Version   uint32
    73  	HasSearch bool
    74  }
    75  
    76  func (demc *DevEnvManagerClient) DescribeCluster(env, name string) *ClusterInfo {
    77  	connection := demc.dial()
    78  	if connection == nil {
    79  		return nil
    80  	}
    81  	defer connection.Close()
    82  
    83  	c := pb.NewClusterStateClient(connection)
    84  	cluster, err := c.GetCluster(context.Background(), &pb.GetClusterRequest{Cluster: &pb.ClusterID{EnvType: env, Name: name}})
    85  	if err != nil {
    86  		log.Fatalf("Unknown cluster %s-%s: %v", env, name, err)
    87  		return nil
    88  	}
    89  	if errResp := cluster.GetErrorResponse(); errResp != nil {
    90  		log.Fatalf("Invalid response: %v", errResp)
    91  		return nil
    92  	}
    93  	if resp := cluster.GetSuccessResponse(); resp != nil {
    94  		result := &ClusterInfo{Version: resp.Cluster.Version}
    95  		flags := resp.Cluster.Flags
    96  		if flag, ok := flags["optionalComponentsSearch"]; ok {
    97  			result.HasSearch = flag == pb.Cluster_ON
    98  		}
    99  		return result
   100  	}
   101  	return nil
   102  }