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ps.go
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ps.go
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package stack
import (
"fmt"
"golang.org/x/net/context"
"github.com/docker/docker/api/types"
"github.com/docker/docker/cli"
"github.com/docker/docker/cli/command"
"github.com/docker/docker/cli/command/idresolver"
"github.com/docker/docker/cli/command/task"
"github.com/docker/docker/opts"
"github.com/spf13/cobra"
)
type psOptions struct {
filter opts.FilterOpt
noTrunc bool
namespace string
noResolve bool
}
func newPsCommand(dockerCli *command.DockerCli) *cobra.Command {
opts := psOptions{filter: opts.NewFilterOpt()}
cmd := &cobra.Command{
Use: "ps [OPTIONS] STACK",
Short: "List the tasks in the stack",
Args: cli.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.namespace = args[0]
return runPS(dockerCli, opts)
},
}
flags := cmd.Flags()
flags.BoolVar(&opts.noTrunc, "no-trunc", false, "Do not truncate output")
flags.BoolVar(&opts.noResolve, "no-resolve", false, "Do not map IDs to Names")
flags.VarP(&opts.filter, "filter", "f", "Filter output based on conditions provided")
return cmd
}
func runPS(dockerCli *command.DockerCli, opts psOptions) error {
namespace := opts.namespace
client := dockerCli.Client()
ctx := context.Background()
filter := opts.filter.Value()
filter.Add("label", labelNamespace+"="+opts.namespace)
tasks, err := client.TaskList(ctx, types.TaskListOptions{Filters: filter})
if err != nil {
return err
}
if len(tasks) == 0 {
fmt.Fprintf(dockerCli.Out(), "Nothing found in stack: %s\n", namespace)
return nil
}
return task.Print(dockerCli, ctx, tasks, idresolver.New(client, opts.noResolve), opts.noTrunc)
}