83 lines
2.5 KiB
Go
83 lines
2.5 KiB
Go
/*
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Copyright 2018 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 cri
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import (
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"path/filepath"
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"github.com/containerd/containerd/log"
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"github.com/containerd/containerd/plugin"
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"github.com/pkg/errors"
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"github.com/containerd/cri-containerd/cmd/cri-containerd/options"
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"github.com/containerd/cri-containerd/pkg/server"
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)
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// TODO(random-liu): Use github.com/pkg/errors for our errors.
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// Register CRI service plugin
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func init() {
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// TODO(random-liu): Make `containerd config default` print plugin default config.
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config := options.DefaultConfig().PluginConfig
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plugin.Register(&plugin.Registration{
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// In fact, cri is not strictly a GRPC plugin now.
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Type: plugin.GRPCPlugin,
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ID: "cri",
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Config: &config,
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Requires: []plugin.Type{
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plugin.RuntimePlugin,
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plugin.SnapshotPlugin,
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plugin.TaskMonitorPlugin,
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plugin.DiffPlugin,
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plugin.MetadataPlugin,
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plugin.ContentPlugin,
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plugin.GCPlugin,
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},
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InitFn: initCRIService,
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})
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}
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func initCRIService(ic *plugin.InitContext) (interface{}, error) {
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ctx := ic.Context
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// TODO(random-liu): Handle graceful stop.
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pluginConfig := ic.Config.(*options.PluginConfig)
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c := options.CRIConfig{
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PluginConfig: *pluginConfig,
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// This is a hack. We assume that containerd root directory
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// is one level above plugin directory.
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// TODO(random-liu): Expose containerd config to plugin.
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ContainerdRootDir: filepath.Dir(ic.Root),
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ContainerdEndpoint: ic.Address,
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RootDir: ic.Root,
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}
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log.G(ctx).Infof("Start cri plugin with config %+v", c)
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s, err := server.NewCRIContainerdService(c)
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if err != nil {
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return nil, errors.Wrap(err, "failed to create CRI service")
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}
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// Use a goroutine to initialize cri service. The reason is that currently
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// cri service requires containerd to be initialize.
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go func() {
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if err := s.Run(false); err != nil {
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log.G(ctx).WithError(err).Fatal("Failed to run CRI service")
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}
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// TODO(random-liu): Whether and how we can stop containerd.
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}()
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return s, nil
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}
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