// +build !windows package main import ( "fmt" "net/http" "os" "path/filepath" "strconv" "strings" "sync" "syscall" "time" "github.com/docker/docker/api/types/swarm" "github.com/docker/docker/pkg/integration/checker" "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.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.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.False) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive) c.Assert(d2.Join(swarm.JoinRequest{JoinToken: d1.joinTokens(c).Worker, RemoteAddrs: []string{d1.listenAddr}}), checker.IsNil) info, err = d2.info() c.Assert(err, checker.IsNil) c.Assert(info.ControlAvailable, checker.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.True) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive) info, err = d2.info() c.Assert(err, checker.IsNil) c.Assert(info.ControlAvailable, checker.False) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive) } func (s *DockerSwarmSuite) TestAPISwarmJoinToken(c *check.C) { d1 := s.AddDaemon(c, false, false) c.Assert(d1.Init(swarm.InitRequest{}), checker.IsNil) d2 := s.AddDaemon(c, false, false) err := d2.Join(swarm.JoinRequest{RemoteAddrs: []string{d1.listenAddr}}) c.Assert(err, checker.NotNil) c.Assert(err.Error(), checker.Contains, "join token is necessary") info, err := d2.info() c.Assert(err, checker.IsNil) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive) err = d2.Join(swarm.JoinRequest{JoinToken: "foobaz", RemoteAddrs: []string{d1.listenAddr}}) c.Assert(err, checker.NotNil) c.Assert(err.Error(), checker.Contains, "join token is necessary") info, err = d2.info() c.Assert(err, checker.IsNil) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive) workerToken := d1.joinTokens(c).Worker c.Assert(d2.Join(swarm.JoinRequest{JoinToken: workerToken, RemoteAddrs: []string{d1.listenAddr}}), 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) // change tokens d1.rotateTokens(c) err = d2.Join(swarm.JoinRequest{JoinToken: workerToken, RemoteAddrs: []string{d1.listenAddr}}) c.Assert(err, checker.NotNil) c.Assert(err.Error(), checker.Contains, "join token is necessary") info, err = d2.info() c.Assert(err, checker.IsNil) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive) workerToken = d1.joinTokens(c).Worker c.Assert(d2.Join(swarm.JoinRequest{JoinToken: workerToken, RemoteAddrs: []string{d1.listenAddr}}), 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) // change spec, don't change tokens d1.updateSwarm(c, func(s *swarm.Spec) {}) err = d2.Join(swarm.JoinRequest{RemoteAddrs: []string{d1.listenAddr}}) c.Assert(err, checker.NotNil) c.Assert(err.Error(), checker.Contains, "join token is necessary") info, err = d2.info() c.Assert(err, checker.IsNil) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive) c.Assert(d2.Join(swarm.JoinRequest{JoinToken: workerToken, RemoteAddrs: []string{d1.listenAddr}}), 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) splitToken := strings.Split(d1.joinTokens(c).Worker, "-") splitToken[2] = "1kxftv4ofnc6mt30lmgipg6ngf9luhwqopfk1tz6bdmnkubg0e" replacementToken := strings.Join(splitToken, "-") err := d2.Join(swarm.JoinRequest{JoinToken: replacementToken, RemoteAddrs: []string{d1.listenAddr}}) c.Assert(err, checker.NotNil) c.Assert(err.Error(), checker.Contains, "remote CA does not match fingerprint") } func (s *DockerSwarmSuite) TestAPISwarmPromoteDemote(c *check.C) { d1 := s.AddDaemon(c, false, false) c.Assert(d1.Init(swarm.InitRequest{}), checker.IsNil) d2 := s.AddDaemon(c, true, false) info, err := d2.info() c.Assert(err, checker.IsNil) c.Assert(info.ControlAvailable, checker.False) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive) d1.updateNode(c, d2.NodeID, func(n *swarm.Node) { n.Spec.Role = swarm.NodeRoleManager }) waitAndAssert(c, defaultReconciliationTimeout, d2.checkControlAvailable, checker.True) d1.updateNode(c, d2.NodeID, func(n *swarm.Node) { n.Spec.Role = swarm.NodeRoleWorker }) waitAndAssert(c, defaultReconciliationTimeout, d2.checkControlAvailable, checker.False) // Demoting last node should fail node := d1.getNode(c, d1.NodeID) node.Spec.Role = swarm.NodeRoleWorker url := fmt.Sprintf("/nodes/%s/update?version=%d", node.ID, node.Version.Index) status, out, err := d1.SockRequest("POST", url, node.Spec) c.Assert(err, checker.IsNil) c.Assert(status, checker.Equals, http.StatusInternalServerError, check.Commentf("output: %q", string(out))) c.Assert(string(out), checker.Contains, "last manager of the swarm") info, err = d1.info() c.Assert(err, checker.IsNil) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive) c.Assert(info.ControlAvailable, checker.True) // Promote already demoted node d1.updateNode(c, d2.NodeID, func(n *swarm.Node) { n.Spec.Role = swarm.NodeRoleManager }) waitAndAssert(c, defaultReconciliationTimeout, d2.checkControlAvailable, checker.True) } func (s *DockerSwarmSuite) TestAPISwarmServicesEmptyList(c *check.C) { d := s.AddDaemon(c, true, true) services := d.listServices(c) c.Assert(services, checker.NotNil) c.Assert(len(services), checker.Equals, 0, check.Commentf("services: %#v", services)) } 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) TestAPISwarmServicesUpdate(c *check.C) { const nodeCount = 3 var daemons [nodeCount]*SwarmDaemon for i := 0; i < nodeCount; i++ { daemons[i] = s.AddDaemon(c, true, i == 0) } // wait for nodes ready waitAndAssert(c, 5*time.Second, daemons[0].checkNodeReadyCount, checker.Equals, nodeCount) // service image at start image1 := "busybox:latest" // target image in update image2 := "busybox:test" // create a different tag for _, d := range daemons { out, err := d.Cmd("tag", image1, image2) c.Assert(err, checker.IsNil, check.Commentf(out)) } // create service instances := 5 parallelism := 2 id := daemons[0].createService(c, serviceForUpdate, setInstances(instances)) // wait for tasks ready waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkRunningTaskImages, checker.DeepEquals, map[string]int{image1: instances}) // issue service update service := daemons[0].getService(c, id) daemons[0].updateService(c, service, setImage(image2)) // first batch waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkRunningTaskImages, checker.DeepEquals, map[string]int{image1: instances - parallelism, image2: parallelism}) // 2nd batch waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkRunningTaskImages, checker.DeepEquals, map[string]int{image1: instances - 2*parallelism, image2: 2 * parallelism}) // 3nd batch waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkRunningTaskImages, checker.DeepEquals, map[string]int{image2: instances}) } func (s *DockerSwarmSuite) TestAPISwarmServiceConstraintRole(c *check.C) { const nodeCount = 3 var daemons [nodeCount]*SwarmDaemon for i := 0; i < nodeCount; i++ { daemons[i] = s.AddDaemon(c, true, i == 0) } // wait for nodes ready waitAndAssert(c, 5*time.Second, daemons[0].checkNodeReadyCount, checker.Equals, nodeCount) // create service constraints := []string{"node.role==worker"} instances := 3 id := daemons[0].createService(c, simpleTestService, setConstraints(constraints), setInstances(instances)) // wait for tasks ready waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkServiceRunningTasks(c, id), checker.Equals, instances) // validate tasks are running on worker nodes tasks := daemons[0].getServiceTasks(c, id) for _, task := range tasks { node := daemons[0].getNode(c, task.NodeID) c.Assert(node.Spec.Role, checker.Equals, swarm.NodeRoleWorker) } //remove service daemons[0].removeService(c, id) // create service constraints = []string{"node.role!=worker"} id = daemons[0].createService(c, simpleTestService, setConstraints(constraints), setInstances(instances)) // wait for tasks ready waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkServiceRunningTasks(c, id), checker.Equals, instances) tasks = daemons[0].getServiceTasks(c, id) // validate tasks are running on manager nodes for _, task := range tasks { node := daemons[0].getNode(c, task.NodeID) c.Assert(node.Spec.Role, checker.Equals, swarm.NodeRoleManager) } //remove service daemons[0].removeService(c, id) // create service constraints = []string{"node.role==nosuchrole"} id = daemons[0].createService(c, simpleTestService, setConstraints(constraints), setInstances(instances)) // wait for tasks created waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkServiceTasks(c, id), checker.Equals, instances) // let scheduler try time.Sleep(250 * time.Millisecond) // validate tasks are not assigned to any node tasks = daemons[0].getServiceTasks(c, id) for _, task := range tasks { c.Assert(task.NodeID, checker.Equals, "") } } func (s *DockerSwarmSuite) TestAPISwarmServiceConstraintLabel(c *check.C) { const nodeCount = 3 var daemons [nodeCount]*SwarmDaemon for i := 0; i < nodeCount; i++ { daemons[i] = s.AddDaemon(c, true, i == 0) } // wait for nodes ready waitAndAssert(c, 5*time.Second, daemons[0].checkNodeReadyCount, checker.Equals, nodeCount) nodes := daemons[0].listNodes(c) c.Assert(len(nodes), checker.Equals, nodeCount) // add labels to nodes daemons[0].updateNode(c, nodes[0].ID, func(n *swarm.Node) { n.Spec.Annotations.Labels = map[string]string{ "security": "high", } }) for i := 1; i < nodeCount; i++ { daemons[0].updateNode(c, nodes[i].ID, func(n *swarm.Node) { n.Spec.Annotations.Labels = map[string]string{ "security": "low", } }) } // create service instances := 3 constraints := []string{"node.labels.security==high"} id := daemons[0].createService(c, simpleTestService, setConstraints(constraints), setInstances(instances)) // wait for tasks ready waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkServiceRunningTasks(c, id), checker.Equals, instances) tasks := daemons[0].getServiceTasks(c, id) // validate all tasks are running on nodes[0] for _, task := range tasks { c.Assert(task.NodeID, checker.Equals, nodes[0].ID) } //remove service daemons[0].removeService(c, id) // create service constraints = []string{"node.labels.security!=high"} id = daemons[0].createService(c, simpleTestService, setConstraints(constraints), setInstances(instances)) // wait for tasks ready waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkServiceRunningTasks(c, id), checker.Equals, instances) tasks = daemons[0].getServiceTasks(c, id) // validate all tasks are NOT running on nodes[0] for _, task := range tasks { c.Assert(task.NodeID, checker.Not(checker.Equals), nodes[0].ID) } //remove service daemons[0].removeService(c, id) constraints = []string{"node.labels.security==medium"} id = daemons[0].createService(c, simpleTestService, setConstraints(constraints), setInstances(instances)) // wait for tasks created waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkServiceTasks(c, id), checker.Equals, instances) // let scheduler try time.Sleep(250 * time.Millisecond) tasks = daemons[0].getServiceTasks(c, id) // validate tasks are not assigned for _, task := range tasks { c.Assert(task.NodeID, checker.Equals, "") } //remove service daemons[0].removeService(c, id) // multiple constraints constraints = []string{ "node.labels.security==high", fmt.Sprintf("node.id==%s", nodes[1].ID), } id = daemons[0].createService(c, simpleTestService, setConstraints(constraints), setInstances(instances)) // wait for tasks created waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkServiceTasks(c, id), checker.Equals, instances) // let scheduler try time.Sleep(250 * time.Millisecond) tasks = daemons[0].getServiceTasks(c, id) // validate tasks are not assigned for _, task := range tasks { c.Assert(task.NodeID, checker.Equals, "") } // make nodes[1] fulfills the constraints daemons[0].updateNode(c, nodes[1].ID, func(n *swarm.Node) { n.Spec.Annotations.Labels = map[string]string{ "security": "high", } }) // wait for tasks ready waitAndAssert(c, defaultReconciliationTimeout, daemons[0].checkServiceRunningTasks(c, id), checker.Equals, instances) tasks = daemons[0].getServiceTasks(c, id) for _, task := range tasks { c.Assert(task.NodeID, checker.Equals, nodes[1].ID) } } 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) TestAPISwarmLeaderProxy(c *check.C) { // add three managers, one of these is leader d1 := s.AddDaemon(c, true, true) d2 := s.AddDaemon(c, true, true) d3 := s.AddDaemon(c, true, true) // start a service by hitting each of the 3 managers d1.createService(c, simpleTestService, func(s *swarm.Service) { s.Spec.Name = "test1" }) d2.createService(c, simpleTestService, func(s *swarm.Service) { s.Spec.Name = "test2" }) d3.createService(c, simpleTestService, func(s *swarm.Service) { s.Spec.Name = "test3" }) // 3 services should be started now, because the requests were proxied to leader // query each node and make sure it returns 3 services for _, d := range []*SwarmDaemon{d1, d2, d3} { services := d.listServices(c) c.Assert(services, checker.HasLen, 3) } } func (s *DockerSwarmSuite) TestAPISwarmLeaderElection(c *check.C) { // Create 3 nodes d1 := s.AddDaemon(c, true, true) d2 := s.AddDaemon(c, true, true) d3 := s.AddDaemon(c, true, true) // assert that the first node we made is the leader, and the other two are followers c.Assert(d1.getNode(c, d1.NodeID).ManagerStatus.Leader, checker.True) c.Assert(d1.getNode(c, d2.NodeID).ManagerStatus.Leader, checker.False) c.Assert(d1.getNode(c, d3.NodeID).ManagerStatus.Leader, checker.False) d1.Stop() // stop the leader var ( leader *SwarmDaemon // keep track of leader followers []*SwarmDaemon // keep track of followers ) checkLeader := func(nodes ...*SwarmDaemon) checkF { return func(c *check.C) (interface{}, check.CommentInterface) { // clear these out before each run leader = nil followers = nil for _, d := range nodes { if d.getNode(c, d.NodeID).ManagerStatus.Leader { leader = d } else { followers = append(followers, d) } } if leader == nil { return false, check.Commentf("no leader elected") } return true, check.Commentf("elected %v", leader.id) } } // wait for an election to occur waitAndAssert(c, defaultReconciliationTimeout, checkLeader(d2, d3), checker.True) // assert that we have a new leader c.Assert(leader, checker.NotNil) // Keep track of the current leader, since we want that to be chosen. stableleader := leader // add the d1, the initial leader, back d1.Start() // TODO(stevvooe): may need to wait for rejoin here // wait for possible election waitAndAssert(c, defaultReconciliationTimeout, checkLeader(d1, d2, d3), checker.True) // pick out the leader and the followers again // verify that we still only have 1 leader and 2 followers c.Assert(leader, checker.NotNil) c.Assert(followers, checker.HasLen, 2) // and that after we added d1 back, the leader hasn't changed c.Assert(leader.NodeID, checker.Equals, stableleader.NodeID) } 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) // make sure there is a leader waitAndAssert(c, defaultReconciliationTimeout, d1.checkLeader, checker.IsNil) d1.createService(c, simpleTestService, func(s *swarm.Service) { s.Spec.Name = "top1" }) c.Assert(d3.Stop(), checker.IsNil) // make sure there is a leader waitAndAssert(c, defaultReconciliationTimeout, d1.checkLeader, 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) // make sure there is a leader waitAndAssert(c, defaultReconciliationTimeout, d1.checkLeader, 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, 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) TestAPISwarmNodeRemove(c *check.C) { testRequires(c, Network) d1 := s.AddDaemon(c, true, true) d2 := s.AddDaemon(c, true, false) _ = s.AddDaemon(c, true, false) nodes := d1.listNodes(c) c.Assert(len(nodes), checker.Equals, 3, check.Commentf("nodes: %#v", nodes)) // Getting the info so we can take the NodeID d2Info, err := d2.info() c.Assert(err, checker.IsNil) // forceful removal of d2 should work d1.removeNode(c, d2Info.NodeID, true) nodes = d1.listNodes(c) c.Assert(len(nodes), checker.Equals, 2, check.Commentf("nodes: %#v", nodes)) // Restart the node that was removed err = d2.Restart() c.Assert(err, checker.IsNil) // Give some time for the node to rejoin time.Sleep(1 * time.Second) // Make sure the node didn't rejoin nodes = d1.listNodes(c) c.Assert(len(nodes), checker.Equals, 2, check.Commentf("nodes: %#v", nodes)) } 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, 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, d2.NodeID, func(n *swarm.Node) { n.Spec.Availability = swarm.NodeAvailabilityActive }) instances = 1 d1.updateService(c, d1.getService(c, id), setInstances(instances)) waitAndAssert(c, defaultReconciliationTimeout*2, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d2.checkActiveContainerCount), checker.Equals, instances) instances = 8 d1.updateService(c, d1.getService(c, id), setInstances(instances)) // 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, 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)) } // #23629 func (s *DockerSwarmSuite) TestAPISwarmLeaveOnPendingJoin(c *check.C) { testRequires(c, Network) s.AddDaemon(c, true, true) d2 := s.AddDaemon(c, false, false) id, err := d2.Cmd("run", "-d", "busybox", "top") c.Assert(err, checker.IsNil) id = strings.TrimSpace(id) err = d2.Join(swarm.JoinRequest{ RemoteAddrs: []string{"123.123.123.123:1234"}, }) c.Assert(err, check.NotNil) c.Assert(err.Error(), checker.Contains, "Timeout was reached") info, err := d2.info() c.Assert(err, checker.IsNil) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStatePending) c.Assert(d2.Leave(true), checker.IsNil) waitAndAssert(c, defaultReconciliationTimeout, d2.checkActiveContainerCount, checker.Equals, 1) id2, err := d2.Cmd("ps", "-q") c.Assert(err, checker.IsNil) c.Assert(id, checker.HasPrefix, strings.TrimSpace(id2)) } // #23705 func (s *DockerSwarmSuite) TestAPISwarmRestoreOnPendingJoin(c *check.C) { testRequires(c, Network) d := s.AddDaemon(c, false, false) err := d.Join(swarm.JoinRequest{ RemoteAddrs: []string{"123.123.123.123:1234"}, }) c.Assert(err, check.NotNil) c.Assert(err.Error(), checker.Contains, "Timeout was reached") waitAndAssert(c, defaultReconciliationTimeout, d.checkLocalNodeState, checker.Equals, swarm.LocalNodeStatePending) c.Assert(d.Stop(), checker.IsNil) c.Assert(d.Start(), checker.IsNil) info, err := d.info() c.Assert(err, checker.IsNil) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateInactive) } 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 (s *DockerSwarmSuite) TestAPISwarmInvalidAddress(c *check.C) { d := s.AddDaemon(c, false, false) req := swarm.InitRequest{ ListenAddr: "", } status, _, err := d.SockRequest("POST", "/swarm/init", req) c.Assert(err, checker.IsNil) c.Assert(status, checker.Equals, http.StatusInternalServerError) req2 := swarm.JoinRequest{ ListenAddr: "0.0.0.0:2377", RemoteAddrs: []string{""}, } status, _, err = d.SockRequest("POST", "/swarm/join", req2) c.Assert(err, checker.IsNil) c.Assert(status, checker.Equals, http.StatusInternalServerError) } func (s *DockerSwarmSuite) TestAPISwarmForceNewCluster(c *check.C) { d1 := s.AddDaemon(c, true, true) d2 := s.AddDaemon(c, true, true) instances := 2 id := d1.createService(c, simpleTestService, setInstances(instances)) waitAndAssert(c, defaultReconciliationTimeout, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d2.checkActiveContainerCount), checker.Equals, instances) // drain d2, all containers should move to d1 d1.updateNode(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) c.Assert(d2.Stop(), checker.IsNil) c.Assert(d1.Init(swarm.InitRequest{ ForceNewCluster: true, Spec: swarm.Spec{}, }), checker.IsNil) waitAndAssert(c, defaultReconciliationTimeout, d1.checkActiveContainerCount, checker.Equals, instances) d3 := s.AddDaemon(c, true, true) info, err := d3.info() c.Assert(err, checker.IsNil) c.Assert(info.ControlAvailable, checker.True) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive) instances = 4 d3.updateService(c, d3.getService(c, id), setInstances(instances)) waitAndAssert(c, defaultReconciliationTimeout, reducedCheck(sumAsIntegers, d1.checkActiveContainerCount, d3.checkActiveContainerCount), checker.Equals, instances) } func simpleTestService(s *swarm.Service) { ureplicas := uint64(1) restartDelay := time.Duration(100 * time.Millisecond) s.Spec = swarm.ServiceSpec{ TaskTemplate: swarm.TaskSpec{ ContainerSpec: swarm.ContainerSpec{ Image: "busybox:latest", Command: []string{"/bin/top"}, }, RestartPolicy: &swarm.RestartPolicy{ Delay: &restartDelay, }, }, Mode: swarm.ServiceMode{ Replicated: &swarm.ReplicatedService{ Replicas: &ureplicas, }, }, } s.Spec.Name = "top" } func serviceForUpdate(s *swarm.Service) { ureplicas := uint64(1) restartDelay := time.Duration(100 * time.Millisecond) s.Spec = swarm.ServiceSpec{ TaskTemplate: swarm.TaskSpec{ ContainerSpec: swarm.ContainerSpec{ Image: "busybox:latest", Command: []string{"/bin/top"}, }, RestartPolicy: &swarm.RestartPolicy{ Delay: &restartDelay, }, }, Mode: swarm.ServiceMode{ Replicated: &swarm.ReplicatedService{ Replicas: &ureplicas, }, }, UpdateConfig: &swarm.UpdateConfig{ Parallelism: 2, Delay: 4 * time.Second, FailureAction: swarm.UpdateFailureActionContinue, }, } s.Spec.Name = "updatetest" } func setInstances(replicas int) serviceConstructor { ureplicas := uint64(replicas) return func(s *swarm.Service) { s.Spec.Mode = swarm.ServiceMode{ Replicated: &swarm.ReplicatedService{ Replicas: &ureplicas, }, } } } func setImage(image string) serviceConstructor { return func(s *swarm.Service) { s.Spec.TaskTemplate.ContainerSpec.Image = image } } func setConstraints(constraints []string) serviceConstructor { return func(s *swarm.Service) { if s.Spec.TaskTemplate.Placement == nil { s.Spec.TaskTemplate.Placement = &swarm.Placement{} } s.Spec.TaskTemplate.Placement.Constraints = constraints } } func setGlobalMode(s *swarm.Service) { s.Spec.Mode = swarm.ServiceMode{ Global: &swarm.GlobalService{}, } } func checkClusterHealth(c *check.C, cl []*SwarmDaemon, managerCount, workerCount int) { var totalMCount, totalWCount int for _, d := range cl { var ( info swarm.Info err error ) // check info in a waitAndAssert, because if the cluster doesn't have a leader, `info` will return an error checkInfo := func(c *check.C) (interface{}, check.CommentInterface) { info, err = d.info() return err, check.Commentf("cluster not ready in time") } waitAndAssert(c, defaultReconciliationTimeout, checkInfo, checker.IsNil) if !info.ControlAvailable { totalWCount++ continue } var leaderFound bool totalMCount++ var mCount, wCount int for _, n := range d.listNodes(c) { waitReady := func(c *check.C) (interface{}, check.CommentInterface) { if n.Status.State == swarm.NodeStateReady { return true, nil } nn := d.getNode(c, n.ID) n = *nn return n.Status.State == swarm.NodeStateReady, check.Commentf("state of node %s, reported by %s", n.ID, d.Info.NodeID) } waitAndAssert(c, defaultReconciliationTimeout, waitReady, checker.True) waitActive := func(c *check.C) (interface{}, check.CommentInterface) { if n.Spec.Availability == swarm.NodeAvailabilityActive { return true, nil } nn := d.getNode(c, n.ID) n = *nn return n.Spec.Availability == swarm.NodeAvailabilityActive, check.Commentf("availability of node %s, reported by %s", n.ID, d.Info.NodeID) } waitAndAssert(c, defaultReconciliationTimeout, waitActive, checker.True) if n.Spec.Role == swarm.NodeRoleManager { c.Assert(n.ManagerStatus, checker.NotNil, check.Commentf("manager status of node %s (manager), reported by %s", n.ID, d.Info.NodeID)) if n.ManagerStatus.Leader { leaderFound = true } mCount++ } else { c.Assert(n.ManagerStatus, checker.IsNil, check.Commentf("manager status of node %s (worker), reported by %s", n.ID, d.Info.NodeID)) wCount++ } } c.Assert(leaderFound, checker.True, check.Commentf("lack of leader reported by node %s", info.NodeID)) c.Assert(mCount, checker.Equals, managerCount, check.Commentf("managers count reported by node %s", info.NodeID)) c.Assert(wCount, checker.Equals, workerCount, check.Commentf("workers count reported by node %s", info.NodeID)) } c.Assert(totalMCount, checker.Equals, managerCount) c.Assert(totalWCount, checker.Equals, workerCount) } func (s *DockerSwarmSuite) TestAPISwarmRestartCluster(c *check.C) { mCount, wCount := 5, 1 var nodes []*SwarmDaemon for i := 0; i < mCount; i++ { manager := s.AddDaemon(c, true, true) info, err := manager.info() c.Assert(err, checker.IsNil) c.Assert(info.ControlAvailable, checker.True) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive) nodes = append(nodes, manager) } for i := 0; i < wCount; i++ { worker := s.AddDaemon(c, true, false) info, err := worker.info() c.Assert(err, checker.IsNil) c.Assert(info.ControlAvailable, checker.False) c.Assert(info.LocalNodeState, checker.Equals, swarm.LocalNodeStateActive) nodes = append(nodes, worker) } // stop whole cluster { var wg sync.WaitGroup wg.Add(len(nodes)) errs := make(chan error, len(nodes)) for _, d := range nodes { go func(daemon *SwarmDaemon) { defer wg.Done() if err := daemon.Stop(); err != nil { errs <- err } if root := os.Getenv("DOCKER_REMAP_ROOT"); root != "" { daemon.root = filepath.Dir(daemon.root) } }(d) } wg.Wait() close(errs) for err := range errs { c.Assert(err, check.IsNil) } } // start whole cluster { var wg sync.WaitGroup wg.Add(len(nodes)) errs := make(chan error, len(nodes)) for _, d := range nodes { go func(daemon *SwarmDaemon) { defer wg.Done() if err := daemon.Start("--iptables=false"); err != nil { errs <- err } }(d) } wg.Wait() close(errs) for err := range errs { c.Assert(err, check.IsNil) } } checkClusterHealth(c, nodes, mCount, wCount) } func (s *DockerSwarmSuite) TestAPISwarmServicesUpdateWithName(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 setInstances(instances)(service) url := fmt.Sprintf("/services/%s/update?version=%d", service.Spec.Name, service.Version.Index) status, out, err := d.SockRequest("POST", url, service.Spec) c.Assert(err, checker.IsNil) c.Assert(status, checker.Equals, http.StatusOK, check.Commentf("output: %q", string(out))) waitAndAssert(c, defaultReconciliationTimeout, d.checkActiveContainerCount, checker.Equals, instances) }