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moby--moby/cli/command/service/ps.go

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package service
import (
"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/node"
"github.com/docker/docker/cli/command/task"
"github.com/docker/docker/opts"
"github.com/spf13/cobra"
"golang.org/x/net/context"
)
type psOptions struct {
serviceID string
noResolve bool
noTrunc bool
filter opts.FilterOpt
}
func newPsCommand(dockerCli *command.DockerCli) *cobra.Command {
opts := psOptions{filter: opts.NewFilterOpt()}
cmd := &cobra.Command{
Use: "ps [OPTIONS] SERVICE",
Short: "List the tasks of a service",
Args: cli.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.serviceID = 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 {
client := dockerCli.Client()
ctx := context.Background()
service, _, err := client.ServiceInspectWithRaw(ctx, opts.serviceID)
if err != nil {
return err
}
filter := opts.filter.Value()
filter.Add("service", service.ID)
if filter.Include("node") {
nodeFilters := filter.Get("node")
for _, nodeFilter := range nodeFilters {
nodeReference, err := node.Reference(ctx, client, nodeFilter)
if err != nil {
return err
}
filter.Del("node", nodeFilter)
filter.Add("node", nodeReference)
}
}
tasks, err := client.TaskList(ctx, types.TaskListOptions{Filter: filter})
if err != nil {
return err
}
return task.Print(dockerCli, ctx, tasks, idresolver.New(client, opts.noResolve), opts.noTrunc)
}