github.1git.de/docker/cli@v26.1.3+incompatible/cli/command/swarm/update.go (about)

     1  package swarm
     2  
     3  import (
     4  	"context"
     5  	"fmt"
     6  
     7  	"github.com/docker/cli/cli"
     8  	"github.com/docker/cli/cli/command"
     9  	"github.com/docker/cli/cli/command/completion"
    10  	"github.com/docker/docker/api/types/swarm"
    11  	"github.com/pkg/errors"
    12  	"github.com/spf13/cobra"
    13  	"github.com/spf13/pflag"
    14  )
    15  
    16  func newUpdateCommand(dockerCli command.Cli) *cobra.Command {
    17  	opts := swarmOptions{}
    18  
    19  	cmd := &cobra.Command{
    20  		Use:   "update [OPTIONS]",
    21  		Short: "Update the swarm",
    22  		Args:  cli.NoArgs,
    23  		RunE: func(cmd *cobra.Command, args []string) error {
    24  			return runUpdate(cmd.Context(), dockerCli, cmd.Flags(), opts)
    25  		},
    26  		PreRunE: func(cmd *cobra.Command, args []string) error {
    27  			if cmd.Flags().NFlag() == 0 {
    28  				return pflag.ErrHelp
    29  			}
    30  			return nil
    31  		},
    32  		Annotations: map[string]string{
    33  			"version": "1.24",
    34  			"swarm":   "manager",
    35  		},
    36  		ValidArgsFunction: completion.NoComplete,
    37  	}
    38  
    39  	cmd.Flags().BoolVar(&opts.autolock, flagAutolock, false, "Change manager autolocking setting (true|false)")
    40  	addSwarmFlags(cmd.Flags(), &opts)
    41  	return cmd
    42  }
    43  
    44  func runUpdate(ctx context.Context, dockerCli command.Cli, flags *pflag.FlagSet, opts swarmOptions) error {
    45  	client := dockerCli.Client()
    46  
    47  	var updateFlags swarm.UpdateFlags
    48  
    49  	swarmInspect, err := client.SwarmInspect(ctx)
    50  	if err != nil {
    51  		return err
    52  	}
    53  
    54  	prevAutoLock := swarmInspect.Spec.EncryptionConfig.AutoLockManagers
    55  
    56  	opts.mergeSwarmSpec(&swarmInspect.Spec, flags, swarmInspect.ClusterInfo.TLSInfo.TrustRoot)
    57  
    58  	curAutoLock := swarmInspect.Spec.EncryptionConfig.AutoLockManagers
    59  
    60  	err = client.SwarmUpdate(ctx, swarmInspect.Version, swarmInspect.Spec, updateFlags)
    61  	if err != nil {
    62  		return err
    63  	}
    64  
    65  	fmt.Fprintln(dockerCli.Out(), "Swarm updated.")
    66  
    67  	if curAutoLock && !prevAutoLock {
    68  		unlockKeyResp, err := client.SwarmGetUnlockKey(ctx)
    69  		if err != nil {
    70  			return errors.Wrap(err, "could not fetch unlock key")
    71  		}
    72  		printUnlockCommand(dockerCli.Out(), unlockKeyResp.UnlockKey)
    73  	}
    74  
    75  	return nil
    76  }