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https://github.com/kata-containers/kata-containers.git
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c200b28dc7
Add a `context.Context` parameter to all the virtcontainers API's to support tracing. Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
93 lines
2.0 KiB
Go
93 lines
2.0 KiB
Go
// Copyright (c) 2014,2015,2016 Docker, Inc.
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// Copyright (c) 2017 Intel Corporation
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package main
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import (
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"context"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli"
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)
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var noteText = `Use "` + name + ` list" to identify container statuses.`
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var pauseCLICommand = cli.Command{
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Name: "pause",
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Usage: "suspend all processes in a container",
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ArgsUsage: `<container-id>
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Where "<container-id>" is the container name to be paused.`,
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Description: `The pause command suspends all processes in a container.
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` + noteText,
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Action: pause,
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}
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var resumeCLICommand = cli.Command{
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Name: "resume",
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Usage: "unpause all previously paused processes in a container",
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ArgsUsage: `<container-id>
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Where "<container-id>" is the container name to be resumed.`,
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Description: `The resume command unpauses all processes in a container.
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` + noteText,
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Action: resume,
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}
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func pause(c *cli.Context) error {
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return toggle(c, true)
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}
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func resume(c *cli.Context) error {
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return toggle(c, false)
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}
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func toggle(c *cli.Context, pause bool) error {
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ctx, err := cliContextToContext(c)
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if err != nil {
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return err
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}
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return toggleContainerPause(ctx, c.Args().First(), pause)
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}
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func toggleContainerPause(ctx context.Context, containerID string, pause bool) (err error) {
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span, _ := trace(ctx, "pause")
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defer span.Finish()
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span.SetTag("pause", pause)
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kataLog = kataLog.WithField("container", containerID)
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setExternalLoggers(ctx, kataLog)
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span.SetTag("container", containerID)
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// Checks the MUST and MUST NOT from OCI runtime specification
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status, sandboxID, err := getExistingContainerInfo(ctx, containerID)
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if err != nil {
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return err
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}
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containerID = status.ID
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kataLog = kataLog.WithFields(logrus.Fields{
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"container": containerID,
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"sandbox": sandboxID,
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})
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setExternalLoggers(ctx, kataLog)
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span.SetTag("container", containerID)
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span.SetTag("sandbox", sandboxID)
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if pause {
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err = vci.PauseContainer(ctx, sandboxID, containerID)
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} else {
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err = vci.ResumeContainer(ctx, sandboxID, containerID)
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}
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return err
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}
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