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# Which Problems Are Solved The current maintained gRPC server in combination with a REST (grpc) gateway is getting harder and harder to maintain. Additionally, there have been and still are issues with supporting / displaying `oneOf`s correctly. We therefore decided to exchange the server implementation to connectRPC, which apart from supporting connect as protocol, also also "standard" gRCP clients as well as HTTP/1.1 / rest like clients, e.g. curl directly call the server without any additional gateway. # How the Problems Are Solved - All v2 services are moved to connectRPC implementation. (v1 services are still served as pure grpc servers) - All gRPC server interceptors were migrated / copied to a corresponding connectRPC interceptor. - API.ListGrpcServices and API. ListGrpcMethods were changed to include the connect services and endpoints. - gRPC server reflection was changed to a `StaticReflector` using the `ListGrpcServices` list. - The `grpc.Server` interfaces was split into different combinations to be able to handle the different cases (grpc server and prefixed gateway, connect server with grpc gateway, connect server only, ...) - Docs of services serving connectRPC only with no additional gateway (instance, webkey, project, app, org v2 beta) are changed to expose that - since the plugin is not yet available on buf, we download it using `postinstall` hook of the docs # Additional Changes - WebKey service is added as v2 service (in addition to the current v2beta) # Additional Context closes #9483 --------- Co-authored-by: Elio Bischof <elio@zitadel.com>
91 lines
2.9 KiB
Go
91 lines
2.9 KiB
Go
package server
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import (
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"crypto/tls"
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"net/http"
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"connectrpc.com/connect"
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grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials"
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healthpb "google.golang.org/grpc/health/grpc_health_v1"
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protoreflect "google.golang.org/protobuf/reflect/protoreflect"
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"github.com/zitadel/zitadel/internal/api/authz"
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grpc_api "github.com/zitadel/zitadel/internal/api/grpc"
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"github.com/zitadel/zitadel/internal/api/grpc/server/middleware"
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"github.com/zitadel/zitadel/internal/logstore"
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"github.com/zitadel/zitadel/internal/logstore/record"
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"github.com/zitadel/zitadel/internal/query"
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"github.com/zitadel/zitadel/internal/telemetry/metrics"
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system_pb "github.com/zitadel/zitadel/pkg/grpc/system"
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)
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type Server interface {
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AppName() string
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MethodPrefix() string
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AuthMethods() authz.MethodMapping
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}
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type GrpcServer interface {
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Server
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RegisterServer(*grpc.Server)
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}
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type WithGateway interface {
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Server
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RegisterGateway() RegisterGatewayFunc
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}
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// WithGatewayPrefix extends the server interface with a prefix for the grpc gateway
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//
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// it's used for the System, Admin, Mgmt and Auth API
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type WithGatewayPrefix interface {
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GrpcServer
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WithGateway
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GatewayPathPrefix() string
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}
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type ConnectServer interface {
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Server
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RegisterConnectServer(interceptors ...connect.Interceptor) (string, http.Handler)
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FileDescriptor() protoreflect.FileDescriptor
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}
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func CreateServer(
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verifier authz.APITokenVerifier,
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systemAuthz authz.Config,
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authConfig authz.Config,
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queries *query.Queries,
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externalDomain string,
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tlsConfig *tls.Config,
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accessSvc *logstore.Service[*record.AccessLog],
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) *grpc.Server {
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metricTypes := []metrics.MetricType{metrics.MetricTypeTotalCount, metrics.MetricTypeRequestCount, metrics.MetricTypeStatusCode}
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serverOptions := []grpc.ServerOption{
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grpc.UnaryInterceptor(
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grpc_middleware.ChainUnaryServer(
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middleware.CallDurationHandler(),
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middleware.MetricsHandler(metricTypes, grpc_api.Probes...),
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middleware.NoCacheInterceptor(),
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middleware.InstanceInterceptor(queries, externalDomain, system_pb.SystemService_ServiceDesc.ServiceName, healthpb.Health_ServiceDesc.ServiceName),
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middleware.AccessStorageInterceptor(accessSvc),
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middleware.ErrorHandler(),
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middleware.LimitsInterceptor(system_pb.SystemService_ServiceDesc.ServiceName),
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middleware.AuthorizationInterceptor(verifier, systemAuthz, authConfig),
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middleware.TranslationHandler(),
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middleware.QuotaExhaustedInterceptor(accessSvc, system_pb.SystemService_ServiceDesc.ServiceName),
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middleware.ExecutionHandler(queries),
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middleware.ValidationHandler(),
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middleware.ServiceHandler(),
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middleware.ActivityInterceptor(),
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),
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),
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grpc.StatsHandler(middleware.DefaultTracingServer()),
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}
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if tlsConfig != nil {
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serverOptions = append(serverOptions, grpc.Creds(credentials.NewTLS(tlsConfig)))
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}
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return grpc.NewServer(serverOptions...)
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}
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