mirror of https://github.com/grpc/grpc-go.git
67 lines
2.2 KiB
Go
67 lines
2.2 KiB
Go
/*
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*
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* Copyright 2022 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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// Package bootstrap provides the functionality to register possible options
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// for aspects of the xDS client through the bootstrap file.
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//
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// # Experimental
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//
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// Notice: This package is EXPERIMENTAL and may be changed or removed
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// in a later release.
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package bootstrap
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import (
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"encoding/json"
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"google.golang.org/grpc/credentials"
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)
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// registry is a map from credential type name to Credential builder.
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var registry = make(map[string]Credentials)
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// Credentials interface encapsulates a credentials.Bundle builder
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// that can be used for communicating with the xDS Management server.
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type Credentials interface {
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// Build returns a credential bundle associated with this credential, and
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// a function to cleans up additional resources associated with this bundle
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// when it is no longer needed.
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Build(config json.RawMessage) (credentials.Bundle, func(), error)
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// Name returns the credential name associated with this credential.
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Name() string
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}
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// RegisterCredentials registers Credentials used for connecting to the xds
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// management server.
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//
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// NOTE: this function must only be called during initialization time (i.e. in
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// an init() function), and is not thread-safe. If multiple credentials are
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// registered with the same name, the one registered last will take effect.
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func RegisterCredentials(c Credentials) {
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registry[c.Name()] = c
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}
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// GetCredentials returns the credentials associated with a given name.
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// If no credentials are registered with the name, nil will be returned.
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func GetCredentials(name string) Credentials {
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if c, ok := registry[name]; ok {
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return c
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}
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return nil
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}
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