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web: avoid proxy to connect to the local gRPC server (#4572)

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By default the gRPC client of the REST API gateway relies on the
HTTP_PROXY variable to connect to the local gRPC server which isn't
desired as the server runs in the same process. This change uses a
custom dialer that connects directly to the server's address.

Signed-off-by: Simon Pasquier <spasquie@redhat.com>
This commit is contained in:
Simon Pasquier 2018-11-13 14:42:23 +01:00 committed by GitHub
parent 94fff219ab
commit 181f07ef26
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 1 deletions
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9
web/api/v2/api.go
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@ -18,6 +18,7 @@ import (
"fmt"
"math"
"math/rand"
"net"
"net/http"
"os"
"path/filepath"
@ -73,7 +74,13 @@ func (api *API) HTTPHandler(grpcAddr string) (http.Handler, error) {
enc := new(protoutil.JSONPb)
mux := runtime.NewServeMux(runtime.WithMarshalerOption(enc.ContentType(), enc))
opts := []grpc.DialOption{grpc.WithInsecure()}
opts := []grpc.DialOption{
grpc.WithInsecure(),
// Replace the default dialer that connects through proxy when HTTP_PROXY is set.
grpc.WithDialer(func(addr string, _ time.Duration) (net.Conn, error) {
return (&net.Dialer{}).DialContext(ctx, "tcp", addr)
}),
}
err := pb.RegisterAdminHandlerFromEndpoint(ctx, mux, grpcAddr, opts)
if err != nil {