github.com/AliyunContainerService/cli@v0.0.0-20181009023821-814ced4b30d0/cli/command/stack/swarm/services.go (about)

     1  package swarm
     2  
     3  import (
     4  	"context"
     5  	"fmt"
     6  
     7  	"github.com/docker/cli/cli/command"
     8  	"github.com/docker/cli/cli/command/formatter"
     9  	"github.com/docker/cli/cli/command/service"
    10  	"github.com/docker/cli/cli/command/stack/options"
    11  	"github.com/docker/docker/api/types"
    12  	"github.com/docker/docker/api/types/filters"
    13  )
    14  
    15  // RunServices is the swarm implementation of docker stack services
    16  func RunServices(dockerCli command.Cli, opts options.Services) error {
    17  	ctx := context.Background()
    18  	client := dockerCli.Client()
    19  
    20  	filter := getStackFilterFromOpt(opts.Namespace, opts.Filter)
    21  	services, err := client.ServiceList(ctx, types.ServiceListOptions{Filters: filter})
    22  	if err != nil {
    23  		return err
    24  	}
    25  
    26  	// if no services in this stack, print message and exit 0
    27  	if len(services) == 0 {
    28  		fmt.Fprintf(dockerCli.Err(), "Nothing found in stack: %s\n", opts.Namespace)
    29  		return nil
    30  	}
    31  
    32  	info := map[string]formatter.ServiceListInfo{}
    33  	if !opts.Quiet {
    34  		taskFilter := filters.NewArgs()
    35  		for _, service := range services {
    36  			taskFilter.Add("service", service.ID)
    37  		}
    38  
    39  		tasks, err := client.TaskList(ctx, types.TaskListOptions{Filters: taskFilter})
    40  		if err != nil {
    41  			return err
    42  		}
    43  
    44  		nodes, err := client.NodeList(ctx, types.NodeListOptions{})
    45  		if err != nil {
    46  			return err
    47  		}
    48  
    49  		info = service.GetServicesStatus(services, nodes, tasks)
    50  	}
    51  
    52  	format := opts.Format
    53  	if len(format) == 0 {
    54  		if len(dockerCli.ConfigFile().ServicesFormat) > 0 && !opts.Quiet {
    55  			format = dockerCli.ConfigFile().ServicesFormat
    56  		} else {
    57  			format = formatter.TableFormatKey
    58  		}
    59  	}
    60  
    61  	servicesCtx := formatter.Context{
    62  		Output: dockerCli.Out(),
    63  		Format: formatter.NewServiceListFormat(format, opts.Quiet),
    64  	}
    65  	return formatter.ServiceListWrite(servicesCtx, services, info)
    66  }