50da673592
The io/ioutil package has been deprecated as of Go 1.16, see https://golang.org/doc/go1.16#ioutil. This commit replaces the existing io/ioutil functions with their new definitions in io and os packages. Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
87 lines
2.6 KiB
Go
87 lines
2.6 KiB
Go
//go:build linux
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// +build linux
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/*
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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 runc
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import (
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"context"
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"encoding/json"
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"os"
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"path/filepath"
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"github.com/containerd/containerd/api/events"
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"github.com/containerd/containerd/log"
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"github.com/containerd/containerd/runtime"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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"github.com/sirupsen/logrus"
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)
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// GetTopic converts an event from an interface type to the specific
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// event topic id
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func GetTopic(e interface{}) string {
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switch e.(type) {
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case *events.TaskCreate:
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return runtime.TaskCreateEventTopic
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case *events.TaskStart:
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return runtime.TaskStartEventTopic
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case *events.TaskOOM:
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return runtime.TaskOOMEventTopic
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case *events.TaskExit:
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return runtime.TaskExitEventTopic
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case *events.TaskDelete:
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return runtime.TaskDeleteEventTopic
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case *events.TaskExecAdded:
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return runtime.TaskExecAddedEventTopic
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case *events.TaskExecStarted:
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return runtime.TaskExecStartedEventTopic
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case *events.TaskPaused:
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return runtime.TaskPausedEventTopic
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case *events.TaskResumed:
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return runtime.TaskResumedEventTopic
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case *events.TaskCheckpointed:
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return runtime.TaskCheckpointedEventTopic
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default:
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logrus.Warnf("no topic for type %#v", e)
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}
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return runtime.TaskUnknownTopic
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}
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// ShouldKillAllOnExit reads the bundle's OCI spec and returns true if
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// there is an error reading the spec or if the container has a private PID namespace
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func ShouldKillAllOnExit(ctx context.Context, bundlePath string) bool {
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var bundleSpec specs.Spec
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bundleConfigContents, err := os.ReadFile(filepath.Join(bundlePath, "config.json"))
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if err != nil {
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log.G(ctx).WithError(err).Error("shouldKillAllOnExit: failed to read config.json")
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return true
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}
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if err := json.Unmarshal(bundleConfigContents, &bundleSpec); err != nil {
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log.G(ctx).WithError(err).Error("shouldKillAllOnExit: failed to unmarshal bundle json")
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return true
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}
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if bundleSpec.Linux != nil {
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for _, ns := range bundleSpec.Linux.Namespaces {
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if ns.Type == specs.PIDNamespace && ns.Path == "" {
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return false
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}
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}
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}
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return true
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}
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