mirror of
https://github.com/kata-containers/kata-containers.git
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f4428761cb
gometalinter is deprecated and will be archived April '19. The suggestion is to switch to golangci-lint which is apparently 5x faster than gometalinter. Partially Fixes: #1377 Signed-off-by: Ganesh Maharaj Mahalingam <ganesh.mahalingam@intel.com>
107 lines
2.4 KiB
Go
107 lines
2.4 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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"fmt"
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"github.com/kata-containers/runtime/pkg/katautils"
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vc "github.com/kata-containers/runtime/virtcontainers"
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"github.com/kata-containers/runtime/virtcontainers/types"
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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 psCLICommand = cli.Command{
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Name: "ps",
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Usage: "ps displays the processes running inside a container",
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ArgsUsage: `<container-id> [ps options]`,
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "format, f",
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Value: "table",
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Usage: `select one of: ` + formatOptions,
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},
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},
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Action: func(context *cli.Context) error {
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ctx, err := cliContextToContext(context)
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if err != nil {
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return err
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}
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if !context.Args().Present() {
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return fmt.Errorf("Missing container ID, should at least provide one")
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}
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var args []string
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if len(context.Args()) > 1 {
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// [1:] is to remove container_id:
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// context.Args(): [container_id ps_arg1 ps_arg2 ...]
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// args: [ps_arg1 ps_arg2 ...]
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args = context.Args()[1:]
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}
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return ps(ctx, context.Args().First(), context.String("format"), args)
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},
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SkipArgReorder: true,
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}
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func ps(ctx context.Context, containerID, format string, args []string) error {
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span, _ := katautils.Trace(ctx, "ps")
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defer span.Finish()
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if containerID == "" {
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return fmt.Errorf("Missing container ID")
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}
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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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// container MUST be running
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if status.State.State != types.StateRunning {
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return fmt.Errorf("Container %s is not running", containerID)
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}
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var options vc.ProcessListOptions
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options.Args = args
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if len(options.Args) == 0 {
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options.Args = []string{"-ef"}
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}
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options.Format = format
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msg, err := vci.ProcessListContainer(ctx, sandboxID, containerID, options)
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if err != nil {
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return err
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}
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fmt.Print(string(msg))
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return nil
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}
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