DockerCLI/cli/command/stack/services.go

97 lines
2.5 KiB
Go

package stack
import (
"fmt"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/command/formatter"
"github.com/docker/cli/cli/command/service"
"github.com/docker/cli/opts"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/filters"
"github.com/spf13/cobra"
"golang.org/x/net/context"
)
type servicesOptions struct {
quiet bool
format string
filter opts.FilterOpt
namespace string
}
func newServicesCommand(dockerCli command.Cli) *cobra.Command {
options := servicesOptions{filter: opts.NewFilterOpt()}
cmd := &cobra.Command{
Use: "services [OPTIONS] STACK",
Short: "List the services in the stack",
Args: cli.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
options.namespace = args[0]
return runServices(dockerCli, options)
},
}
flags := cmd.Flags()
flags.BoolVarP(&options.quiet, "quiet", "q", false, "Only display IDs")
flags.StringVar(&options.format, "format", "", "Pretty-print services using a Go template")
flags.VarP(&options.filter, "filter", "f", "Filter output based on conditions provided")
return cmd
}
func runServices(dockerCli command.Cli, options servicesOptions) error {
ctx := context.Background()
client := dockerCli.Client()
filter := getStackFilterFromOpt(options.namespace, options.filter)
services, err := client.ServiceList(ctx, types.ServiceListOptions{Filters: filter})
if err != nil {
return err
}
out := dockerCli.Out()
// if no services in this stack, print message and exit 0
if len(services) == 0 {
fmt.Fprintf(out, "Nothing found in stack: %s\n", options.namespace)
return nil
}
info := map[string]formatter.ServiceListInfo{}
if !options.quiet {
taskFilter := filters.NewArgs()
for _, service := range services {
taskFilter.Add("service", service.ID)
}
tasks, err := client.TaskList(ctx, types.TaskListOptions{Filters: taskFilter})
if err != nil {
return err
}
nodes, err := client.NodeList(ctx, types.NodeListOptions{})
if err != nil {
return err
}
info = service.GetServicesStatus(services, nodes, tasks)
}
format := options.format
if len(format) == 0 {
if len(dockerCli.ConfigFile().ServicesFormat) > 0 && !options.quiet {
format = dockerCli.ConfigFile().ServicesFormat
} else {
format = formatter.TableFormatKey
}
}
servicesCtx := formatter.Context{
Output: dockerCli.Out(),
Format: formatter.NewServiceListFormat(format, options.quiet),
}
return formatter.ServiceListWrite(servicesCtx, services, info)
}