130a9c7ddb
Before this change we only ever had the grpc incoming medata set so when we make a request to a shim or a grpc plugin the namespace is not sent over the RPC. I need this for github.com/cpuguy83/systemdshim, and I am sure there are other use-cases where this would be needed. Signed-off-by: Brian Goff <cpuguy83@gmail.com>
53 lines
1.6 KiB
Go
53 lines
1.6 KiB
Go
/*
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Copyright The containerd Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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package server
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import (
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"context"
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"github.com/containerd/containerd/namespaces"
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"google.golang.org/grpc"
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)
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func unaryNamespaceInterceptor(ctx context.Context, req interface{}, _ *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
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if ns, ok := namespaces.Namespace(ctx); ok {
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// The above call checks the *incoming* metadata, this makes sure the outgoing metadata is also set
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ctx = namespaces.WithNamespace(ctx, ns)
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}
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return handler(ctx, req)
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}
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func streamNamespaceInterceptor(srv interface{}, ss grpc.ServerStream, _ *grpc.StreamServerInfo, handler grpc.StreamHandler) error {
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ctx := ss.Context()
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if ns, ok := namespaces.Namespace(ctx); ok {
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// The above call checks the *incoming* metadata, this makes sure the outgoing metadata is also set
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ctx = namespaces.WithNamespace(ctx, ns)
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ss = &wrappedSSWithContext{ctx: ctx, ServerStream: ss}
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}
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return handler(srv, ss)
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}
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type wrappedSSWithContext struct {
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grpc.ServerStream
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ctx context.Context
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}
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func (w *wrappedSSWithContext) Context() context.Context {
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return w.ctx
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}
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