github.com/containerd/nerdctl@v1.7.7/cmd/nerdctl/container_start.go (about)

     1  /*
     2     Copyright The containerd Authors.
     3  
     4     Licensed under the Apache License, Version 2.0 (the "License");
     5     you may not use this file except in compliance with the License.
     6     You may obtain a copy of the License at
     7  
     8         http://www.apache.org/licenses/LICENSE-2.0
     9  
    10     Unless required by applicable law or agreed to in writing, software
    11     distributed under the License is distributed on an "AS IS" BASIS,
    12     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13     See the License for the specific language governing permissions and
    14     limitations under the License.
    15  */
    16  
    17  package main
    18  
    19  import (
    20  	"github.com/containerd/containerd"
    21  	"github.com/containerd/nerdctl/pkg/api/types"
    22  	"github.com/containerd/nerdctl/pkg/clientutil"
    23  	"github.com/containerd/nerdctl/pkg/cmd/container"
    24  	"github.com/containerd/nerdctl/pkg/consoleutil"
    25  	"github.com/spf13/cobra"
    26  )
    27  
    28  func newStartCommand() *cobra.Command {
    29  	var startCommand = &cobra.Command{
    30  		Use:               "start [flags] CONTAINER [CONTAINER, ...]",
    31  		Args:              cobra.MinimumNArgs(1),
    32  		Short:             "Start one or more running containers",
    33  		RunE:              startAction,
    34  		ValidArgsFunction: startShellComplete,
    35  		SilenceUsage:      true,
    36  		SilenceErrors:     true,
    37  	}
    38  
    39  	startCommand.Flags().SetInterspersed(false)
    40  	startCommand.Flags().BoolP("attach", "a", false, "Attach STDOUT/STDERR and forward signals")
    41  	startCommand.Flags().String("detach-keys", consoleutil.DefaultDetachKeys, "Override the default detach keys")
    42  
    43  	return startCommand
    44  }
    45  
    46  func processContainerStartOptions(cmd *cobra.Command) (types.ContainerStartOptions, error) {
    47  	globalOptions, err := processRootCmdFlags(cmd)
    48  	if err != nil {
    49  		return types.ContainerStartOptions{}, err
    50  	}
    51  	attach, err := cmd.Flags().GetBool("attach")
    52  	if err != nil {
    53  		return types.ContainerStartOptions{}, err
    54  	}
    55  	detachKeys, err := cmd.Flags().GetString("detach-keys")
    56  	if err != nil {
    57  		return types.ContainerStartOptions{}, err
    58  	}
    59  	return types.ContainerStartOptions{
    60  		Stdout:     cmd.OutOrStdout(),
    61  		GOptions:   globalOptions,
    62  		Attach:     attach,
    63  		DetachKeys: detachKeys,
    64  	}, nil
    65  }
    66  
    67  func startAction(cmd *cobra.Command, args []string) error {
    68  	options, err := processContainerStartOptions(cmd)
    69  	if err != nil {
    70  		return err
    71  	}
    72  
    73  	client, ctx, cancel, err := clientutil.NewClient(cmd.Context(), options.GOptions.Namespace, options.GOptions.Address)
    74  	if err != nil {
    75  		return err
    76  	}
    77  	defer cancel()
    78  
    79  	return container.Start(ctx, client, args, options)
    80  }
    81  
    82  func startShellComplete(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
    83  	// show non-running container names
    84  	statusFilterFn := func(st containerd.ProcessStatus) bool {
    85  		return st != containerd.Running && st != containerd.Unknown
    86  	}
    87  	return shellCompleteContainerNames(cmd, statusFilterFn)
    88  }