server

package
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Published: Jun 5, 2020 License: Apache-2.0, Apache-2.0 Imports: 21 Imported by: 0

Documentation

Overview

Package server provides an implementation of a streaming xDS server.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Callbacks

type Callbacks interface {
	// OnStreamOpen is called once an xDS stream is open with a stream ID and the type URL (or "" for ADS).
	// Returning an error will end processing and close the stream. OnStreamClosed will still be called.
	OnStreamOpen(context.Context, int64, string) error
	// OnStreamClosed is called immediately prior to closing an xDS stream with a stream ID.
	OnStreamClosed(int64)
	// OnStreamRequest is called once a request is received on a stream.
	// Returning an error will end processing and close the stream. OnStreamClosed will still be called.
	OnStreamRequest(int64, *discovery.DiscoveryRequest) error
	// OnStreamResponse is called immediately prior to sending a response on a stream.
	OnStreamResponse(int64, *discovery.DiscoveryRequest, *discovery.DiscoveryResponse)
	// OnFetchRequest is called for each Fetch request. Returning an error will end processing of the
	// request and respond with an error.
	OnFetchRequest(context.Context, *discovery.DiscoveryRequest) error
	// OnFetchResponse is called immediately prior to sending a response.
	OnFetchResponse(*discovery.DiscoveryRequest, *discovery.DiscoveryResponse)
}

Callbacks is a collection of callbacks inserted into the server operation. The callbacks are invoked synchronously.

type HTTPGateway

type HTTPGateway struct {
	// Log is an optional log for errors in response write
	Log log.Logger

	// Server is the underlying gRPC server
	Server Server
}

HTTPGateway is a custom implementation of [gRPC gateway](https://github.com/grpc-ecosystem/grpc-gateway) specialized to Envoy xDS API.

func (*HTTPGateway) ServeHTTP

func (h *HTTPGateway) ServeHTTP(resp http.ResponseWriter, req *http.Request) error

type Server

Server is a collection of handlers for streaming discovery requests.

func NewServer

func NewServer(ctx context.Context, config cache.Cache, callbacks Callbacks) Server

NewServer creates handlers from a config watcher and callbacks.

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