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	* otel to 1.24 * prometheus exporter to 0.46 * bunotel to 1.1.17 Also: * Use schemaless URL for metrics * Add software version to tracing schema
		
			
				
	
	
		
			226 lines
		
	
	
	
		
			10 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			226 lines
		
	
	
	
		
			10 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| /*
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|  * Copyright 2016 gRPC authors.
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|  *
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|  * Licensed under the Apache License, Version 2.0 (the "License");
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|  * you may not use this file except in compliance with the License.
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|  * You may obtain a copy of the License at
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|  *
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|  *     http://www.apache.org/licenses/LICENSE-2.0
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|  *
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|  * Unless required by applicable law or agreed to in writing, software
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|  * distributed under the License is distributed on an "AS IS" BASIS,
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|  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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|  * See the License for the specific language governing permissions and
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|  * limitations under the License.
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|  *
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|  */
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| 
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| // Package internal contains gRPC-internal code, to avoid polluting
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| // the godoc of the top-level grpc package.  It must not import any grpc
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| // symbols to avoid circular dependencies.
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| package internal
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| 
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| import (
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| 	"context"
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| 	"time"
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| 
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| 	"google.golang.org/grpc/connectivity"
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| 	"google.golang.org/grpc/serviceconfig"
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| )
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| 
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| var (
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| 	// WithHealthCheckFunc is set by dialoptions.go
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| 	WithHealthCheckFunc any // func (HealthChecker) DialOption
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| 	// HealthCheckFunc is used to provide client-side LB channel health checking
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| 	HealthCheckFunc HealthChecker
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| 	// BalancerUnregister is exported by package balancer to unregister a balancer.
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| 	BalancerUnregister func(name string)
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| 	// KeepaliveMinPingTime is the minimum ping interval.  This must be 10s by
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| 	// default, but tests may wish to set it lower for convenience.
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| 	KeepaliveMinPingTime = 10 * time.Second
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| 	// KeepaliveMinServerPingTime is the minimum ping interval for servers.
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| 	// This must be 1s by default, but tests may wish to set it lower for
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| 	// convenience.
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| 	KeepaliveMinServerPingTime = time.Second
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| 	// ParseServiceConfig parses a JSON representation of the service config.
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| 	ParseServiceConfig any // func(string) *serviceconfig.ParseResult
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| 	// EqualServiceConfigForTesting is for testing service config generation and
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| 	// parsing. Both a and b should be returned by ParseServiceConfig.
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| 	// This function compares the config without rawJSON stripped, in case the
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| 	// there's difference in white space.
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| 	EqualServiceConfigForTesting func(a, b serviceconfig.Config) bool
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| 	// GetCertificateProviderBuilder returns the registered builder for the
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| 	// given name. This is set by package certprovider for use from xDS
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| 	// bootstrap code while parsing certificate provider configs in the
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| 	// bootstrap file.
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| 	GetCertificateProviderBuilder any // func(string) certprovider.Builder
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| 	// GetXDSHandshakeInfoForTesting returns a pointer to the xds.HandshakeInfo
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| 	// stored in the passed in attributes. This is set by
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| 	// credentials/xds/xds.go.
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| 	GetXDSHandshakeInfoForTesting any // func (*attributes.Attributes) *unsafe.Pointer
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| 	// GetServerCredentials returns the transport credentials configured on a
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| 	// gRPC server. An xDS-enabled server needs to know what type of credentials
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| 	// is configured on the underlying gRPC server. This is set by server.go.
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| 	GetServerCredentials any // func (*grpc.Server) credentials.TransportCredentials
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| 	// CanonicalString returns the canonical string of the code defined here:
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| 	// https://github.com/grpc/grpc/blob/master/doc/statuscodes.md.
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| 	//
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| 	// This is used in the 1.0 release of gcp/observability, and thus must not be
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| 	// deleted or changed.
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| 	CanonicalString any // func (codes.Code) string
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| 	// IsRegisteredMethod returns whether the passed in method is registered as
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| 	// a method on the server.
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| 	IsRegisteredMethod any // func(*grpc.Server, string) bool
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| 	// ServerFromContext returns the server from the context.
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| 	ServerFromContext any // func(context.Context) *grpc.Server
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| 	// AddGlobalServerOptions adds an array of ServerOption that will be
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| 	// effective globally for newly created servers. The priority will be: 1.
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| 	// user-provided; 2. this method; 3. default values.
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| 	//
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| 	// This is used in the 1.0 release of gcp/observability, and thus must not be
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| 	// deleted or changed.
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| 	AddGlobalServerOptions any // func(opt ...ServerOption)
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| 	// ClearGlobalServerOptions clears the array of extra ServerOption. This
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| 	// method is useful in testing and benchmarking.
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| 	//
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| 	// This is used in the 1.0 release of gcp/observability, and thus must not be
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| 	// deleted or changed.
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| 	ClearGlobalServerOptions func()
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| 	// AddGlobalDialOptions adds an array of DialOption that will be effective
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| 	// globally for newly created client channels. The priority will be: 1.
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| 	// user-provided; 2. this method; 3. default values.
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| 	//
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| 	// This is used in the 1.0 release of gcp/observability, and thus must not be
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| 	// deleted or changed.
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| 	AddGlobalDialOptions any // func(opt ...DialOption)
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| 	// DisableGlobalDialOptions returns a DialOption that prevents the
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| 	// ClientConn from applying the global DialOptions (set via
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| 	// AddGlobalDialOptions).
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| 	//
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| 	// This is used in the 1.0 release of gcp/observability, and thus must not be
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| 	// deleted or changed.
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| 	DisableGlobalDialOptions any // func() grpc.DialOption
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| 	// ClearGlobalDialOptions clears the array of extra DialOption. This
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| 	// method is useful in testing and benchmarking.
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| 	//
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| 	// This is used in the 1.0 release of gcp/observability, and thus must not be
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| 	// deleted or changed.
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| 	ClearGlobalDialOptions func()
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| 	// JoinDialOptions combines the dial options passed as arguments into a
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| 	// single dial option.
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| 	JoinDialOptions any // func(...grpc.DialOption) grpc.DialOption
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| 	// JoinServerOptions combines the server options passed as arguments into a
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| 	// single server option.
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| 	JoinServerOptions any // func(...grpc.ServerOption) grpc.ServerOption
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| 
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| 	// WithBinaryLogger returns a DialOption that specifies the binary logger
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| 	// for a ClientConn.
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| 	//
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| 	// This is used in the 1.0 release of gcp/observability, and thus must not be
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| 	// deleted or changed.
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| 	WithBinaryLogger any // func(binarylog.Logger) grpc.DialOption
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| 	// BinaryLogger returns a ServerOption that can set the binary logger for a
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| 	// server.
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| 	//
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| 	// This is used in the 1.0 release of gcp/observability, and thus must not be
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| 	// deleted or changed.
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| 	BinaryLogger any // func(binarylog.Logger) grpc.ServerOption
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| 
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| 	// SubscribeToConnectivityStateChanges adds a grpcsync.Subscriber to a provided grpc.ClientConn
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| 	SubscribeToConnectivityStateChanges any // func(*grpc.ClientConn, grpcsync.Subscriber)
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| 
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| 	// NewXDSResolverWithConfigForTesting creates a new xds resolver builder using
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| 	// the provided xds bootstrap config instead of the global configuration from
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| 	// the supported environment variables.  The resolver.Builder is meant to be
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| 	// used in conjunction with the grpc.WithResolvers DialOption.
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| 	//
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| 	// Testing Only
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| 	//
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| 	// This function should ONLY be used for testing and may not work with some
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| 	// other features, including the CSDS service.
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| 	NewXDSResolverWithConfigForTesting any // func([]byte) (resolver.Builder, error)
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| 
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| 	// RegisterRLSClusterSpecifierPluginForTesting registers the RLS Cluster
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| 	// Specifier Plugin for testing purposes, regardless of the XDSRLS environment
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| 	// variable.
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| 	//
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| 	// TODO: Remove this function once the RLS env var is removed.
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| 	RegisterRLSClusterSpecifierPluginForTesting func()
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| 
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| 	// UnregisterRLSClusterSpecifierPluginForTesting unregisters the RLS Cluster
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| 	// Specifier Plugin for testing purposes. This is needed because there is no way
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| 	// to unregister the RLS Cluster Specifier Plugin after registering it solely
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| 	// for testing purposes using RegisterRLSClusterSpecifierPluginForTesting().
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| 	//
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| 	// TODO: Remove this function once the RLS env var is removed.
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| 	UnregisterRLSClusterSpecifierPluginForTesting func()
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| 
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| 	// RegisterRBACHTTPFilterForTesting registers the RBAC HTTP Filter for testing
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| 	// purposes, regardless of the RBAC environment variable.
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| 	//
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| 	// TODO: Remove this function once the RBAC env var is removed.
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| 	RegisterRBACHTTPFilterForTesting func()
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| 
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| 	// UnregisterRBACHTTPFilterForTesting unregisters the RBAC HTTP Filter for
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| 	// testing purposes. This is needed because there is no way to unregister the
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| 	// HTTP Filter after registering it solely for testing purposes using
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| 	// RegisterRBACHTTPFilterForTesting().
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| 	//
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| 	// TODO: Remove this function once the RBAC env var is removed.
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| 	UnregisterRBACHTTPFilterForTesting func()
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| 
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| 	// ORCAAllowAnyMinReportingInterval is for examples/orca use ONLY.
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| 	ORCAAllowAnyMinReportingInterval any // func(so *orca.ServiceOptions)
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| 
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| 	// GRPCResolverSchemeExtraMetadata determines when gRPC will add extra
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| 	// metadata to RPCs.
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| 	GRPCResolverSchemeExtraMetadata string = "xds"
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| 
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| 	// EnterIdleModeForTesting gets the ClientConn to enter IDLE mode.
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| 	EnterIdleModeForTesting any // func(*grpc.ClientConn)
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| 
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| 	// ExitIdleModeForTesting gets the ClientConn to exit IDLE mode.
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| 	ExitIdleModeForTesting any // func(*grpc.ClientConn) error
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| 
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| 	ChannelzTurnOffForTesting func()
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| 
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| 	// TriggerXDSResourceNameNotFoundForTesting triggers the resource-not-found
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| 	// error for a given resource type and name. This is usually triggered when
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| 	// the associated watch timer fires. For testing purposes, having this
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| 	// function makes events more predictable than relying on timer events.
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| 	TriggerXDSResourceNameNotFoundForTesting any // func(func(xdsresource.Type, string), string, string) error
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| 
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| 	// TriggerXDSResourceNotFoundClient invokes the testing xDS Client singleton
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| 	// to invoke resource not found for a resource type name and resource name.
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| 	TriggerXDSResourceNameNotFoundClient any // func(string, string) error
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| 
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| 	// FromOutgoingContextRaw returns the un-merged, intermediary contents of metadata.rawMD.
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| 	FromOutgoingContextRaw any // func(context.Context) (metadata.MD, [][]string, bool)
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| )
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| 
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| // HealthChecker defines the signature of the client-side LB channel health checking function.
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| //
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| // The implementation is expected to create a health checking RPC stream by
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| // calling newStream(), watch for the health status of serviceName, and report
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| // it's health back by calling setConnectivityState().
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| //
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| // The health checking protocol is defined at:
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| // https://github.com/grpc/grpc/blob/master/doc/health-checking.md
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| type HealthChecker func(ctx context.Context, newStream func(string) (any, error), setConnectivityState func(connectivity.State, error), serviceName string) error
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| 
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| const (
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| 	// CredsBundleModeFallback switches GoogleDefaultCreds to fallback mode.
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| 	CredsBundleModeFallback = "fallback"
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| 	// CredsBundleModeBalancer switches GoogleDefaultCreds to grpclb balancer
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| 	// mode.
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| 	CredsBundleModeBalancer = "balancer"
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| 	// CredsBundleModeBackendFromBalancer switches GoogleDefaultCreds to mode
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| 	// that supports backend returned by grpclb balancer.
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| 	CredsBundleModeBackendFromBalancer = "backend-from-balancer"
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| )
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| 
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| // RLSLoadBalancingPolicyName is the name of the RLS LB policy.
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| //
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| // It currently has an experimental suffix which would be removed once
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| // end-to-end testing of the policy is completed.
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| const RLSLoadBalancingPolicyName = "rls_experimental"
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