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104 lines
3.3 KiB
Go
104 lines
3.3 KiB
Go
// Copyright 2019 Yunion
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package containerd
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import (
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"context"
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"fmt"
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"strconv"
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"time"
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"github.com/containerd/containerd"
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"github.com/containerd/containerd/errdefs"
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"github.com/containerd/containerd/runtime/restart"
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"github.com/containerd/typeurl"
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"github.com/opencontainers/runtime-spec/specs-go"
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"yunion.io/x/log"
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"yunion.io/x/pkg/errors"
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)
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func init() {
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const prefix = "types.containerd.io"
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// register TypeUrls for commonly marshaled external types
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major := strconv.Itoa(specs.VersionMajor)
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typeurl.Register(&specs.Spec{}, prefix, "opencontainers/runtime-spec", major, "Spec")
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typeurl.Register(&specs.Process{}, prefix, "opencontainers/runtime-spec", major, "Process")
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typeurl.Register(&specs.LinuxResources{}, prefix, "opencontainers/runtime-spec", major, "LinuxResources")
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typeurl.Register(&specs.WindowsResources{}, prefix, "opencontainers/runtime-spec", major, "WindowsResources")
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}
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// NewClient 创建 containerd 客户端
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// 参考 nerdctl 的实现方式，使用 containerd.Client
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func NewClient(ctx context.Context, address, namespace string) (*containerd.Client, error) {
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// 使用 containerd.New 创建客户端，参考 nerdctl 实现
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client, err := containerd.New(address,
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containerd.WithDefaultNamespace(namespace),
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)
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if err != nil {
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return nil, errors.Wrapf(err, "create containerd client at %s", address)
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}
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return client, nil
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}
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type ProcessStatus string
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const (
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ProcessStatusCreated ProcessStatus = "created"
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ProcessStatusRunning ProcessStatus = "running"
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ProcessStatusStopped ProcessStatus = "stopped"
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ProcessStatusUnknown ProcessStatus = "unknown"
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ProcessStatusRestarting ProcessStatus = "restarting"
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)
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func ContainerStatus(ctx context.Context, c containerd.Container) ProcessStatus {
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ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
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defer cancel()
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task, err := c.Task(ctx, nil)
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if err != nil {
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if errdefs.IsNotFound(err) {
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return ProcessStatusCreated
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}
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log.Warningf("failed to get task for container %s: %v", c.ID(), err)
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return ProcessStatusUnknown
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}
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status, err := task.Status(ctx)
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if err != nil {
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log.Warningf("failed to get status for task %s: %v", task.ID(), err)
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return ProcessStatusUnknown
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}
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labels, err := c.Labels(ctx)
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if err != nil {
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log.Warningf("failed to get labels for container %s: %v", c.ID(), err)
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return ProcessStatusUnknown
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}
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switch s := status.Status; s {
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case containerd.Stopped:
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if labels[restart.StatusLabel] == string(containerd.Running) && restart.Reconcile(status, labels) {
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s := fmt.Sprintf("Restarting (%d) %v", status.ExitStatus, status.ExitTime)
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log.Infof("container %s is restarting: %s", c.ID(), s)
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return ProcessStatusRestarting
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}
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return ProcessStatusStopped
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case containerd.Running:
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return ProcessStatusRunning
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}
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return ProcessStatus(status.Status)
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}
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