docker/swarmkit

package config

import (
    "errors"
    "fmt"
    "os"
    "text/tabwriter"

    gogotypes "github.com/gogo/protobuf/types"
    "github.com/moby/swarmkit/swarmd/cmd/swarmctl/common"
    "github.com/moby/swarmkit/v2/api"
    "github.com/spf13/cobra"
)

func printConfigSummary(config *api.Config) {
    w := tabwriter.NewWriter(os.Stdout, 8, 8, 8, ' ', 0)
    defer w.Flush()

    common.FprintfIfNotEmpty(w, "ID\t: %s\n", config.ID)
    common.FprintfIfNotEmpty(w, "Name\t: %s\n", config.Spec.Annotations.Name)
    if len(config.Spec.Annotations.Labels) > 0 {
        fmt.Fprintln(w, "Labels\t")
        for k, v := range config.Spec.Annotations.Labels {
            fmt.Fprintf(w, "  %s\t: %s\n", k, v)
        }
    }

    common.FprintfIfNotEmpty(w, "Created\t: %s\n", gogotypes.TimestampString(config.Meta.CreatedAt))

    fmt.Print(w, "Payload:\n\n")
    fmt.Println(w, config.Spec.Data)
}

var (
    inspectCmd = &cobra.Command{
        Use:   "inspect <config ID or name>",
        Short: "Inspect a config",
        RunE: func(cmd *cobra.Command, args []string) error {
            if len(args) != 1 {
                return errors.New("inspect command takes a single config ID or name")
            }

            client, err := common.Dial(cmd)
            if err != nil {
                return err
            }

            config, err := getConfig(common.Context(cmd), client, args[0])
            if err != nil {
                return err
            }

            printConfigSummary(config)
            return nil
        },
    }
)