DockerCLI/cli/command/service/ps.go

124 lines
3.3 KiB
Go

package service
import (
"strings"
"golang.org/x/net/context"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/command/formatter"
"github.com/docker/cli/cli/command/idresolver"
"github.com/docker/cli/cli/command/node"
"github.com/docker/cli/cli/command/task"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/filters"
"github.com/docker/docker/opts"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
type psOptions struct {
services []string
quiet bool
noResolve bool
noTrunc bool
format string
filter opts.FilterOpt
}
func newPsCommand(dockerCli command.Cli) *cobra.Command {
opts := psOptions{filter: opts.NewFilterOpt()}
cmd := &cobra.Command{
Use: "ps [OPTIONS] SERVICE [SERVICE...]",
Short: "List the tasks of one or more services",
Args: cli.RequiresMinArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
opts.services = args
return runPS(dockerCli, opts)
},
}
flags := cmd.Flags()
flags.BoolVarP(&opts.quiet, "quiet", "q", false, "Only display task IDs")
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.StringVar(&opts.format, "format", "", "Pretty-print tasks using a Go template")
flags.VarP(&opts.filter, "filter", "f", "Filter output based on conditions provided")
return cmd
}
func runPS(dockerCli command.Cli, opts psOptions) error {
client := dockerCli.Client()
ctx := context.Background()
filter := opts.filter.Value()
serviceIDFilter := filters.NewArgs()
serviceNameFilter := filters.NewArgs()
for _, service := range opts.services {
serviceIDFilter.Add("id", service)
serviceNameFilter.Add("name", service)
}
serviceByIDList, err := client.ServiceList(ctx, types.ServiceListOptions{Filters: serviceIDFilter})
if err != nil {
return err
}
serviceByNameList, err := client.ServiceList(ctx, types.ServiceListOptions{Filters: serviceNameFilter})
if err != nil {
return err
}
for _, service := range opts.services {
serviceCount := 0
// Lookup by ID/Prefix
for _, serviceEntry := range serviceByIDList {
if strings.HasPrefix(serviceEntry.ID, service) {
filter.Add("service", serviceEntry.ID)
serviceCount++
}
}
// Lookup by Name/Prefix
for _, serviceEntry := range serviceByNameList {
if strings.HasPrefix(serviceEntry.Spec.Annotations.Name, service) {
filter.Add("service", serviceEntry.ID)
serviceCount++
}
}
// If nothing has been found, return immediately.
if serviceCount == 0 {
return errors.Errorf("no such services: %s", service)
}
}
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{Filters: filter})
if err != nil {
return err
}
format := opts.format
if len(format) == 0 {
if len(dockerCli.ConfigFile().TasksFormat) > 0 && !opts.quiet {
format = dockerCli.ConfigFile().TasksFormat
} else {
format = formatter.TableFormatKey
}
}
return task.Print(ctx, dockerCli, tasks, idresolver.New(client, opts.noResolve), !opts.noTrunc, opts.quiet, format)
}