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https://github.com/kata-containers/kata-containers.git
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e84a9a70b0
- Add kata-runtime - Add unit test - Add Makefile to build cli Fixes: #33 Signed-off-by: Julio Montes <julio.montes@intel.com> Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com> Signed-off-by: Jose Carlos Venegas Munoz <jose.carlos.venegas.munoz@intel.com>
90 lines
2.2 KiB
Go
90 lines
2.2 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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// 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 main
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import (
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"fmt"
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vc "github.com/kata-containers/runtime/virtcontainers"
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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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if context.Args().Present() == false {
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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(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(containerID, format string, args []string) error {
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if containerID == "" {
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return fmt.Errorf("Missing container ID")
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}
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// Checks the MUST and MUST NOT from OCI runtime specification
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status, podID, err := getExistingContainerInfo(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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// container MUST be running
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if status.State.State != vc.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(containerID, podID, 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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