1bf781d8eb
Split service proxy from service plugin. Make introspection service easier for clients to use. Update service proxy to support grpc and ttrpc. Signed-off-by: Derek McGowan <derek@mcg.dev>
109 lines
3.4 KiB
Go
109 lines
3.4 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 introspectionproxy
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import (
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"context"
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"fmt"
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api "github.com/containerd/containerd/v2/api/services/introspection/v1"
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"github.com/containerd/containerd/v2/core/introspection"
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"github.com/containerd/containerd/v2/protobuf"
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"github.com/containerd/errdefs"
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"github.com/containerd/log"
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"github.com/containerd/ttrpc"
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"google.golang.org/grpc"
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"google.golang.org/protobuf/types/known/anypb"
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"google.golang.org/protobuf/types/known/emptypb"
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)
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var _ = (introspection.Service)(&introspectionRemote{})
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// NewIntrospectionServiceFromClient creates a new introspection service from an API client
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func NewIntrospectionProxy(client any) introspection.Service {
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switch c := client.(type) {
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case api.IntrospectionClient:
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return &introspectionRemote{client: convertIntrospection{c}}
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case api.TTRPCIntrospectionService:
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return &introspectionRemote{client: c}
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case grpc.ClientConnInterface:
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return &introspectionRemote{client: convertIntrospection{api.NewIntrospectionClient(c)}}
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case *ttrpc.Client:
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return &introspectionRemote{client: api.NewTTRPCIntrospectionClient(c)}
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default:
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panic(fmt.Errorf("unsupported introspection client %T: %w", client, errdefs.ErrNotImplemented))
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}
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}
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type introspectionRemote struct {
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client api.TTRPCIntrospectionService
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}
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func (i *introspectionRemote) Plugins(ctx context.Context, filters ...string) (*api.PluginsResponse, error) {
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log.G(ctx).WithField("filters", filters).Debug("remote introspection plugin filters")
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resp, err := i.client.Plugins(ctx, &api.PluginsRequest{
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Filters: filters,
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})
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if err != nil {
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return nil, errdefs.FromGRPC(err)
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}
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return resp, nil
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}
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func (i *introspectionRemote) Server(ctx context.Context) (*api.ServerResponse, error) {
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resp, err := i.client.Server(ctx, &emptypb.Empty{})
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if err != nil {
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return nil, errdefs.FromGRPC(err)
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}
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return resp, nil
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}
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func (i *introspectionRemote) PluginInfo(ctx context.Context, pluginType, id string, options any) (resp *api.PluginInfoResponse, err error) {
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var optionsPB *anypb.Any
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if options != nil {
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optionsPB, err = protobuf.MarshalAnyToProto(options)
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if err != nil {
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return nil, fmt.Errorf("failed to marshal runtime requst: %w", err)
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}
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}
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resp, err = i.client.PluginInfo(ctx, &api.PluginInfoRequest{
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Type: pluginType,
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ID: id,
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Options: optionsPB,
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})
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return resp, errdefs.FromGRPC(err)
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}
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type convertIntrospection struct {
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client api.IntrospectionClient
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}
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func (c convertIntrospection) Plugins(ctx context.Context, req *api.PluginsRequest) (*api.PluginsResponse, error) {
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return c.client.Plugins(ctx, req)
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}
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func (c convertIntrospection) Server(ctx context.Context, in *emptypb.Empty) (*api.ServerResponse, error) {
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return c.client.Server(ctx, in)
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}
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func (c convertIntrospection) PluginInfo(ctx context.Context, req *api.PluginInfoRequest) (*api.PluginInfoResponse, error) {
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return c.client.PluginInfo(ctx, req)
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}
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