Swarm integration tests

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Signed-off-by: Victor Vieux <vieux@docker.com>

integration-cli/docker_api_swarm_test.go

@@ -0,0 +1,573 @@
+// +build !windows
+
+package main
+
+import (
+	"net/http"
+	"strconv"
+	"strings"
+	"syscall"
+	"time"
+
+	"github.com/docker/docker/pkg/integration/checker"
+	"github.com/docker/engine-api/types/swarm"
+	"github.com/go-check/check"
+)
+
+var defaultReconciliationTimeout = 30 * time.Second
+
+func (s *DockerSwarmSuite) TestApiSwarmInit(c *check.C) {
+	// todo: should find a better way to verify that components are running than /info
+	d1 := s.AddDaemon(c, true, true)
+	info, err := d1.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.ControlAvailable, checker.Equals, true)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive)
+
+	d2 := s.AddDaemon(c, true, false)
+	info, err = d2.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.ControlAvailable, checker.Equals, false)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive)
+
+	// Leaving cluster
+	c.Assert(d2.Leave(false), checker.IsNil)
+
+	info, err = d2.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.ControlAvailable, checker.Equals, false)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive)
+
+	c.Assert(d2.Join(d1.listenAddr, "", "", false), checker.IsNil)
+
+	info, err = d2.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.ControlAvailable, checker.Equals, false)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive)
+
+	// Current state restoring after restarts
+	err = d1.Stop()
+	c.Assert(err, checker.IsNil)
+	err = d2.Stop()
+	c.Assert(err, checker.IsNil)
+
+	err = d1.Start()
+	c.Assert(err, checker.IsNil)
+	err = d2.Start()
+	c.Assert(err, checker.IsNil)
+
+	info, err = d1.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.ControlAvailable, checker.Equals, true)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive)
+
+	info, err = d2.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.ControlAvailable, checker.Equals, false)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive)
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmManualAcceptance(c *check.C) {
+	s.testAPISwarmManualAcceptance(c, "")
+}
+func (s *DockerSwarmSuite) TestApiSwarmManualAcceptanceSecret(c *check.C) {
+	s.testAPISwarmManualAcceptance(c, "foobaz")
+}
+
+func (s *DockerSwarmSuite) testAPISwarmManualAcceptance(c *check.C, secret string) {
+	d1 := s.AddDaemon(c, false, false)
+	c.Assert(d1.Init(map[string]bool{}, secret), checker.IsNil)
+
+	d2 := s.AddDaemon(c, false, false)
+	err := d2.Join(d1.listenAddr, "", "", false)
+	c.Assert(err, checker.NotNil)
+	if secret == "" {
+		c.Assert(err.Error(), checker.Contains, "Timeout reached")
+		info, err := d2.info()
+		c.Assert(err, checker.IsNil)
+		c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStatePending)
+		c.Assert(d2.Leave(false), checker.IsNil)
+		info, err = d2.info()
+		c.Assert(err, checker.IsNil)
+		c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive)
+	} else {
+		c.Assert(err.Error(), checker.Contains, "valid secret token is necessary")
+		info, err := d2.info()
+		c.Assert(err, checker.IsNil)
+		c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive)
+	}
+	d3 := s.AddDaemon(c, false, false)
+	go func() {
+		for i := 0; ; i++ {
+			info, err := d3.info()
+			c.Assert(err, checker.IsNil)
+			if info.NodeID != "" {
+				d1.updateNode(c, d1.getNode(c, info.NodeID), func(n *swarm.Node) {
+					n.Spec.Membership = swarm.NodeMembershipAccepted
+				})
+				return
+			}
+			if i >= 10 {
+				c.Errorf("could not find nodeID")
+			}
+			time.Sleep(300 * time.Millisecond)
+		}
+	}()
+	c.Assert(d3.Join(d1.listenAddr, secret, "", false), checker.IsNil)
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmSecretAcceptance(c *check.C) {
+	d1 := s.AddDaemon(c, false, false)
+	aa := make(map[string]bool)
+	aa["worker"] = true
+	c.Assert(d1.Init(aa, "foobar"), checker.IsNil)
+
+	d2 := s.AddDaemon(c, false, false)
+	err := d2.Join(d1.listenAddr, "", "", false)
+	c.Assert(err, checker.NotNil)
+	c.Assert(err.Error(), checker.Contains, "secret token is necessary")
+	info, err := d2.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive)
+
+	err = d2.Join(d1.listenAddr, "foobaz", "", false)
+	c.Assert(err, checker.NotNil)
+	c.Assert(err.Error(), checker.Contains, "secret token is necessary")
+	info, err = d2.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive)
+
+	c.Assert(d2.Join(d1.listenAddr, "foobar", "", false), checker.IsNil)
+	info, err = d2.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive)
+	c.Assert(d2.Leave(false), checker.IsNil)
+	info, err = d2.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive)
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmCAHash(c *check.C) {
+	d1 := s.AddDaemon(c, true, true)
+	d2 := s.AddDaemon(c, false, false)
+	err := d2.Join(d1.listenAddr, "", "foobar", false)
+	c.Assert(err, checker.NotNil)
+	c.Assert(err.Error(), checker.Contains, "invalid checksum digest format")
+
+	c.Assert(len(d1.CACertHash), checker.GreaterThan, 0)
+	c.Assert(d2.Join(d1.listenAddr, "", d1.CACertHash, false), checker.IsNil)
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmPromoteDemote(c *check.C) {
+	d1 := s.AddDaemon(c, false, false)
+	c.Assert(d1.Init(map[string]bool{"worker": true}, ""), checker.IsNil)
+	d2 := s.AddDaemon(c, true, false)
+
+	info, err := d2.info()
+	c.Assert(err, checker.IsNil)
+	c.Assert(info.ControlAvailable, checker.Equals, false)
+	c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive)
+
+	d1.updateNode(c, d1.getNode(c, d2.NodeID), func(n *swarm.Node) {
+		n.Spec.Role = swarm.NodeRoleManager
+	})
+
+	for i := 0; ; i++ {
+		info, err := d2.info()
+		c.Assert(err, checker.IsNil)
+		c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive)
+		if info.ControlAvailable {
+			break
+		}
+		if i > 10 {
+			c.Errorf("node did not turn into manager")
+		} else {
+			break
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+
+	d1.updateNode(c, d1.getNode(c, d2.NodeID), func(n *swarm.Node) {
+		n.Spec.Role = swarm.NodeRoleWorker
+	})
+
+	for i := 0; ; i++ {
+		info, err := d2.info()
+		c.Assert(err, checker.IsNil)
+		c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive)
+		if !info.ControlAvailable {
+			break
+		}
+		if i > 10 {
+			c.Errorf("node did not turn into manager")
+		} else {
+			break
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+
+	// todo: test raft qourum stability
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmServicesCreate(c *check.C) {
+	d := s.AddDaemon(c, true, true)
+
+	instances := 2
+	id := d.createService(c, simpleTestService, setInstances(instances))
+	waitAndAssert(c, defaultReconciliationTimeout, d.checkActiveContainerCount, checker.Equals, instances)
+
+	service := d.getService(c, id)
+	instances = 5
+	d.updateService(c, service, setInstances(instances))
+	waitAndAssert(c, defaultReconciliationTimeout, d.checkActiveContainerCount, checker.Equals, instances)
+
+	d.removeService(c, service.ID)
+	waitAndAssert(c, defaultReconciliationTimeout, d.checkActiveContainerCount, checker.Equals, 0)
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmServicesMultipleAgents(c *check.C) {
+	d1 := s.AddDaemon(c, true, true)
+	d2 := s.AddDaemon(c, true, false)
+	d3 := s.AddDaemon(c, true, false)
+
+	time.Sleep(1 * time.Second) // make sure all daemons are ready to accept tasks
+
+	instances := 9
+	id := d1.createService(c, simpleTestService, setInstances(instances))
+
+	waitAndAssert(c, defaultReconciliationTimeout, d1.checkActiveContainerCount, checker.GreaterThan, 0)
+	waitAndAssert(c, defaultReconciliationTimeout, d2.checkActiveContainerCount, checker.GreaterThan, 0)
+	waitAndAssert(c, defaultReconciliationTimeout, d3.checkActiveContainerCount, checker.GreaterThan, 0)
+
+	waitAndAssert(c, defaultReconciliationTimeout, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d2.checkActiveContainerCount, d3.checkActiveContainerCount), checker.Equals, instances)
+
+	// reconciliation on d2 node down
+	c.Assert(d2.Stop(), checker.IsNil)
+
+	waitAndAssert(c, defaultReconciliationTimeout, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d3.checkActiveContainerCount), checker.Equals, instances)
+
+	// test downscaling
+	instances = 5
+	d1.updateService(c, d1.getService(c, id), setInstances(instances))
+	waitAndAssert(c, defaultReconciliationTimeout, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d3.checkActiveContainerCount), checker.Equals, instances)
+
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmServicesCreateGlobal(c *check.C) {
+	d1 := s.AddDaemon(c, true, true)
+	d2 := s.AddDaemon(c, true, false)
+	d3 := s.AddDaemon(c, true, false)
+
+	d1.createService(c, simpleTestService, setGlobalMode)
+
+	waitAndAssert(c, defaultReconciliationTimeout, d1.checkActiveContainerCount, checker.Equals, 1)
+	waitAndAssert(c, defaultReconciliationTimeout, d2.checkActiveContainerCount, checker.Equals, 1)
+	waitAndAssert(c, defaultReconciliationTimeout, d3.checkActiveContainerCount, checker.Equals, 1)
+
+	d4 := s.AddDaemon(c, true, false)
+	d5 := s.AddDaemon(c, true, false)
+
+	waitAndAssert(c, defaultReconciliationTimeout, d4.checkActiveContainerCount, checker.Equals, 1)
+	waitAndAssert(c, defaultReconciliationTimeout, d5.checkActiveContainerCount, checker.Equals, 1)
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmServicesStateReporting(c *check.C) {
+	testRequires(c, SameHostDaemon)
+	testRequires(c, DaemonIsLinux)
+
+	d1 := s.AddDaemon(c, true, true)
+	d2 := s.AddDaemon(c, true, true)
+	d3 := s.AddDaemon(c, true, false)
+
+	time.Sleep(1 * time.Second) // make sure all daemons are ready to accept
+
+	instances := 9
+	d1.createService(c, simpleTestService, setInstances(instances))
+
+	waitAndAssert(c, defaultReconciliationTimeout, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d2.checkActiveContainerCount, d3.checkActiveContainerCount), checker.Equals, instances)
+
+	getContainers := func() map[string]*SwarmDaemon {
+		m := make(map[string]*SwarmDaemon)
+		for _, d := range []*SwarmDaemon{d1, d2, d3} {
+			for _, id := range d.activeContainers() {
+				m[id] = d
+			}
+		}
+		return m
+	}
+
+	containers := getContainers()
+	c.Assert(containers, checker.HasLen, instances)
+	var toRemove string
+	for i := range containers {
+		toRemove = i
+	}
+
+	_, err := containers[toRemove].Cmd("stop", toRemove)
+	c.Assert(err, checker.IsNil)
+
+	waitAndAssert(c, defaultReconciliationTimeout, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d2.checkActiveContainerCount, d3.checkActiveContainerCount), checker.Equals, instances)
+
+	containers2 := getContainers()
+	c.Assert(containers2, checker.HasLen, instances)
+	for i := range containers {
+		if i == toRemove {
+			c.Assert(containers2[i], checker.IsNil)
+		} else {
+			c.Assert(containers2[i], checker.NotNil)
+		}
+	}
+
+	containers = containers2
+	for i := range containers {
+		toRemove = i
+	}
+
+	// try with killing process outside of docker
+	pidStr, err := containers[toRemove].Cmd("inspect", "-f", "{{.State.Pid}}", toRemove)
+	c.Assert(err, checker.IsNil)
+	pid, err := strconv.Atoi(strings.TrimSpace(pidStr))
+	c.Assert(err, checker.IsNil)
+	c.Assert(syscall.Kill(pid, syscall.SIGKILL), checker.IsNil)
+
+	time.Sleep(time.Second) // give some time to handle the signal
+
+	waitAndAssert(c, defaultReconciliationTimeout, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d2.checkActiveContainerCount, d3.checkActiveContainerCount), checker.Equals, instances)
+
+	containers2 = getContainers()
+	c.Assert(containers2, checker.HasLen, instances)
+	for i := range containers {
+		if i == toRemove {
+			c.Assert(containers2[i], checker.IsNil)
+		} else {
+			c.Assert(containers2[i], checker.NotNil)
+		}
+	}
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmRaftQuorum(c *check.C) {
+	d1 := s.AddDaemon(c, true, true)
+	d2 := s.AddDaemon(c, true, true)
+	d3 := s.AddDaemon(c, true, true)
+
+	d1.createService(c, simpleTestService)
+
+	c.Assert(d2.Stop(), checker.IsNil)
+
+	d1.createService(c, simpleTestService, func(s *swarm.Service) {
+		s.Spec.Name = "top1"
+	})
+
+	c.Assert(d3.Stop(), checker.IsNil)
+
+	var service swarm.Service
+	simpleTestService(&service)
+	service.Spec.Name = "top2"
+	status, out, err := d1.SockRequest("POST", "/services/create", service.Spec)
+	c.Assert(err, checker.IsNil)
+	c.Assert(status, checker.Equals, http.StatusInternalServerError, check.Commentf("deadline exceeded", string(out)))
+
+	c.Assert(d2.Start(), checker.IsNil)
+
+	d1.createService(c, simpleTestService, func(s *swarm.Service) {
+		s.Spec.Name = "top3"
+	})
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmListNodes(c *check.C) {
+	d1 := s.AddDaemon(c, true, true)
+	d2 := s.AddDaemon(c, true, false)
+	d3 := s.AddDaemon(c, true, false)
+
+	nodes := d1.listNodes(c)
+	c.Assert(len(nodes), checker.Equals, 3, check.Commentf("nodes: %#v", nodes))
+
+loop0:
+	for _, n := range nodes {
+		for _, d := range []*SwarmDaemon{d1, d2, d3} {
+			if n.ID == d.NodeID {
+				continue loop0
+			}
+		}
+		c.Errorf("unknown nodeID %v", n.ID)
+	}
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmNodeUpdate(c *check.C) {
+	d := s.AddDaemon(c, true, true)
+
+	nodes := d.listNodes(c)
+
+	d.updateNode(c, d.getNode(c, nodes[0].ID), func(n *swarm.Node) {
+		n.Spec.Availability = swarm.NodeAvailabilityPause
+	})
+
+	n := d.getNode(c, nodes[0].ID)
+	c.Assert(n.Spec.Availability, checker.Equals, swarm.NodeAvailabilityPause)
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmNodeDrainPause(c *check.C) {
+	d1 := s.AddDaemon(c, true, true)
+	d2 := s.AddDaemon(c, true, false)
+
+	time.Sleep(1 * time.Second) // make sure all daemons are ready to accept tasks
+
+	// start a service, expect balanced distribution
+	instances := 8
+	id := d1.createService(c, simpleTestService, setInstances(instances))
+
+	waitAndAssert(c, defaultReconciliationTimeout, d1.checkActiveContainerCount, checker.GreaterThan, 0)
+	waitAndAssert(c, defaultReconciliationTimeout, d2.checkActiveContainerCount, checker.GreaterThan, 0)
+	waitAndAssert(c, defaultReconciliationTimeout, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d2.checkActiveContainerCount), checker.Equals, instances)
+
+	// drain d2, all containers should move to d1
+	d1.updateNode(c, d1.getNode(c, d2.NodeID), func(n *swarm.Node) {
+		n.Spec.Availability = swarm.NodeAvailabilityDrain
+	})
+	waitAndAssert(c, defaultReconciliationTimeout, d1.checkActiveContainerCount, checker.Equals, instances)
+	waitAndAssert(c, defaultReconciliationTimeout, d2.checkActiveContainerCount, checker.Equals, 0)
+
+	// set d2 back to active
+	d1.updateNode(c, d1.getNode(c, d2.NodeID), func(n *swarm.Node) {
+		n.Spec.Availability = swarm.NodeAvailabilityActive
+	})
+
+	// change environment variable, resulting balanced rescheduling
+	d1.updateService(c, d1.getService(c, id), func(s *swarm.Service) {
+		s.Spec.TaskTemplate.ContainerSpec.Env = []string{"FOO=BAR"}
+		s.Spec.UpdateConfig = &swarm.UpdateConfig{
+			Parallelism: 2,
+			Delay:       250 * time.Millisecond,
+		}
+	})
+
+	// drained node first so we don't get any old containers
+	waitAndAssert(c, defaultReconciliationTimeout, d2.checkActiveContainerCount, checker.GreaterThan, 0)
+	waitAndAssert(c, defaultReconciliationTimeout, d1.checkActiveContainerCount, checker.GreaterThan, 0)
+	waitAndAssert(c, defaultReconciliationTimeout*2, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d2.checkActiveContainerCount), checker.Equals, instances)
+
+	d2ContainerCount := len(d2.activeContainers())
+
+	// set d2 to paused, scale service up, only d1 gets new tasks
+	d1.updateNode(c, d1.getNode(c, d2.NodeID), func(n *swarm.Node) {
+		n.Spec.Availability = swarm.NodeAvailabilityPause
+	})
+
+	instances = 14
+	d1.updateService(c, d1.getService(c, id), setInstances(instances))
+
+	waitAndAssert(c, defaultReconciliationTimeout, d1.checkActiveContainerCount, checker.Equals, instances-d2ContainerCount)
+	waitAndAssert(c, defaultReconciliationTimeout, d2.checkActiveContainerCount, checker.Equals, d2ContainerCount)
+
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmLeaveRemovesContainer(c *check.C) {
+	d := s.AddDaemon(c, true, true)
+
+	instances := 2
+	d.createService(c, simpleTestService, setInstances(instances))
+
+	id, err := d.Cmd("run", "-d", "busybox", "top")
+	c.Assert(err, checker.IsNil)
+	id = strings.TrimSpace(id)
+
+	waitAndAssert(c, defaultReconciliationTimeout, d.checkActiveContainerCount, checker.Equals, instances+1)
+
+	c.Assert(d.Leave(false), checker.NotNil)
+	c.Assert(d.Leave(true), checker.IsNil)
+
+	waitAndAssert(c, defaultReconciliationTimeout, d.checkActiveContainerCount, checker.Equals, 1)
+
+	id2, err := d.Cmd("ps", "-q")
+	c.Assert(err, checker.IsNil)
+	c.Assert(id, checker.HasPrefix, strings.TrimSpace(id2))
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmManagerRestore(c *check.C) {
+	d1 := s.AddDaemon(c, true, true)
+
+	instances := 2
+	id := d1.createService(c, simpleTestService, setInstances(instances))
+
+	d1.getService(c, id)
+	d1.Stop()
+	d1.Start()
+	d1.getService(c, id)
+
+	d2 := s.AddDaemon(c, true, true)
+	d2.getService(c, id)
+	d2.Stop()
+	d2.Start()
+	d2.getService(c, id)
+
+	d3 := s.AddDaemon(c, true, true)
+	d3.getService(c, id)
+	d3.Stop()
+	d3.Start()
+	d3.getService(c, id)
+
+	d3.Kill()
+	time.Sleep(1 * time.Second) // time to handle signal
+	d3.Start()
+	d3.getService(c, id)
+}
+
+func (s *DockerSwarmSuite) TestApiSwarmScaleNoRollingUpdate(c *check.C) {
+	d := s.AddDaemon(c, true, true)
+
+	instances := 2
+	id := d.createService(c, simpleTestService, setInstances(instances))
+
+	waitAndAssert(c, defaultReconciliationTimeout, d.checkActiveContainerCount, checker.Equals, instances)
+	containers := d.activeContainers()
+	instances = 4
+	d.updateService(c, d.getService(c, id), setInstances(instances))
+	waitAndAssert(c, defaultReconciliationTimeout, d.checkActiveContainerCount, checker.Equals, instances)
+	containers2 := d.activeContainers()
+
+loop0:
+	for _, c1 := range containers {
+		for _, c2 := range containers2 {
+			if c1 == c2 {
+				continue loop0
+			}
+		}
+		c.Errorf("container %v not found in new set %#v", c1, containers2)
+	}
+}
+
+func simpleTestService(s *swarm.Service) {
+	var ureplicas uint64
+	ureplicas = 1
+	s.Spec = swarm.ServiceSpec{
+		TaskTemplate: swarm.TaskSpec{
+			ContainerSpec: swarm.ContainerSpec{
+				Image:   "busybox:latest",
+				Command: []string{"/bin/top"},
+			},
+		},
+		Mode: swarm.ServiceMode{
+			Replicated: &swarm.ReplicatedService{
+				Replicas: &ureplicas,
+			},
+		},
+	}
+	s.Spec.Name = "top"
+}
+
+func setInstances(replicas int) serviceConstructor {
+	ureplicas := uint64(replicas)
+	return func(s *swarm.Service) {
+		s.Spec.Mode = swarm.ServiceMode{
+			Replicated: &swarm.ReplicatedService{
+				Replicas: &ureplicas,
+			},
+		}
+	}
+}
+
+func setGlobalMode(s *swarm.Service) {
+	s.Spec.Mode = swarm.ServiceMode{
+		Global: &swarm.GlobalService{},
+	}
+}