Allow service and node filter to be name…

… on `docker node tasks` and `docker service tasks` commands.
This changes is mainly server-side (between engine api and
swarmkit). There is just a check in `api/client/service/tasks.go` to
handle the special *self* meaning.

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
(cherry picked from commit b0fc5a21f1138f48e0431a550c936e8908d72840)
Signed-off-by: Tibor Vass <tibor@docker.com>

api/client/node/cmd.go

@@ -35,9 +35,10 @@ func NewNodeCommand(dockerCli *client.DockerCli) *cobra.Command {
 	return cmd
 }
 
-func nodeReference(client apiclient.APIClient, ctx context.Context, ref string) (string, error) {
+// Reference return the reference of a node. The special value "self" for a node
-	// The special value "self" for a node reference is mapped to the current
+// reference is mapped to the current node, hence the node ID is retrieved using
-	// node, hence the node ID is retrieved using the `/info` endpoint.
+// the `/info` endpoint.
+func Reference(client apiclient.APIClient, ctx context.Context, ref string) (string, error) {
 	if ref == "self" {
 		info, err := client.Info(ctx)
 		if err != nil {

api/client/node/inspect.go

@@ -45,7 +45,7 @@ func runInspect(dockerCli *client.DockerCli, opts inspectOptions) error {
 	client := dockerCli.Client()
 	ctx := context.Background()
 	getRef := func(ref string) (interface{}, []byte, error) {
-		nodeRef, err := nodeReference(client, ctx, ref)
+		nodeRef, err := Reference(client, ctx, ref)
 		if err != nil {
 			return nil, nil, err
 		}

api/client/node/tasks.go

@@ -44,7 +44,7 @@ func runTasks(dockerCli *client.DockerCli, opts tasksOptions) error {
 	client := dockerCli.Client()
 	ctx := context.Background()
 
-	nodeRef, err := nodeReference(client, ctx, opts.nodeID)
+	nodeRef, err := Reference(client, ctx, opts.nodeID)
 	if err != nil {
 		return nil
 	}

api/client/service/tasks.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/docker/docker/api/client"
 	"github.com/docker/docker/api/client/idresolver"
+	"github.com/docker/docker/api/client/node"
 	"github.com/docker/docker/api/client/task"
 	"github.com/docker/docker/cli"
 	"github.com/docker/docker/opts"
@@ -56,6 +57,18 @@ func runTasks(dockerCli *client.DockerCli, opts tasksOptions) error {
 		filter.Add("desired-state", string(swarm.TaskStateAccepted))
 	}
 
+	if filter.Include("node") {
+		nodeFilters := filter.Get("node")
+		for _, nodeFilter := range nodeFilters {
+			nodeReference, err := node.Reference(client, ctx, 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

daemon/cluster/cluster.go

@@ -22,6 +22,7 @@ import (
 	"github.com/docker/docker/pkg/ioutils"
 	"github.com/docker/docker/runconfig"
 	apitypes "github.com/docker/engine-api/types"
+	"github.com/docker/engine-api/types/filters"
 	types "github.com/docker/engine-api/types/swarm"
 	swarmagent "github.com/docker/swarmkit/agent"
 	swarmapi "github.com/docker/swarmkit/api"
@@ -884,7 +885,33 @@ func (c *Cluster) GetTasks(options apitypes.TaskListOptions) ([]types.Task, erro
 		return nil, c.errNoManager()
 	}
 
-	filters, err := newListTasksFilters(options.Filter)
+	byName := func(filter filters.Args) error {
+		if filter.Include("service") {
+			serviceFilters := filter.Get("service")
+			for _, serviceFilter := range serviceFilters {
+				service, err := c.GetService(serviceFilter)
+				if err != nil {
+					return err
+				}
+				filter.Del("service", serviceFilter)
+				filter.Add("service", service.ID)
+			}
+		}
+		if filter.Include("node") {
+			nodeFilters := filter.Get("node")
+			for _, nodeFilter := range nodeFilters {
+				node, err := c.GetNode(nodeFilter)
+				if err != nil {
+					return err
+				}
+				filter.Del("node", nodeFilter)
+				filter.Add("node", node.ID)
+			}
+		}
+		return nil
+	}
+
+	filters, err := newListTasksFilters(options.Filter, byName)
 	if err != nil {
 		return nil, err
 	}

daemon/cluster/filters.go

@@ -61,7 +61,7 @@ func newListServicesFilters(filter filters.Args) (*swarmapi.ListServicesRequest_
 	}, nil
 }
 
-func newListTasksFilters(filter filters.Args) (*swarmapi.ListTasksRequest_Filters, error) {
+func newListTasksFilters(filter filters.Args, transformFunc func(filters.Args) error) (*swarmapi.ListTasksRequest_Filters, error) {
 	accepted := map[string]bool{
 		"name":          true,
 		"id":            true,
@@ -73,6 +73,11 @@ func newListTasksFilters(filter filters.Args) (*swarmapi.ListTasksRequest_Filter
 	if err := filter.Validate(accepted); err != nil {
 		return nil, err
 	}
+	if transformFunc != nil {
+		if err := transformFunc(filter); err != nil {
+			return nil, err
+		}
+	}
 	f := &swarmapi.ListTasksRequest_Filters{
 		Names:      filter.Get("name"),
 		IDPrefixes: filter.Get("id"),