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Swarm integration tests 

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Signed-off-by: Victor Vieux <vieux@docker.com>
This commit is contained in:
Tonis Tiigi 2016-06-13 19:54:20 -07:00
parent 534a90a993
commit 0d88d5b64b
8 changed files with 913 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
integration-cli/check_test.go
View File

@ -184,6 +184,61 @@ func (s *DockerDaemonSuite) TearDownTest(c *check.C) {
s.ds.TearDownTest(c)
}
const defaultSwarmPort = 2477
func init() {
check.Suite(&DockerSwarmSuite{
ds: &DockerSuite{},
})
}
type DockerSwarmSuite struct {
ds *DockerSuite
daemons []*SwarmDaemon
portIndex int
}
func (s *DockerSwarmSuite) SetUpTest(c *check.C) {
testRequires(c, DaemonIsLinux)
}
func (s *DockerSwarmSuite) AddDaemon(c *check.C, joinSwarm, manager bool) *SwarmDaemon {
d := &SwarmDaemon{
Daemon: NewDaemon(c),
port: defaultSwarmPort + s.portIndex,
}
d.listenAddr = fmt.Sprintf("0.0.0.0:%d", d.port)
err := d.StartWithBusybox()
c.Assert(err, check.IsNil)
if joinSwarm == true {
if len(s.daemons) > 0 {
c.Assert(d.Join(s.daemons[0].listenAddr, "", "", manager), check.IsNil)
} else {
aa := make(map[string]bool)
aa["worker"] = true
aa["manager"] = true
c.Assert(d.Init(aa, ""), check.IsNil)
}
}
s.portIndex++
s.daemons = append(s.daemons, d)
return d
}
func (s *DockerSwarmSuite) TearDownTest(c *check.C) {
testRequires(c, DaemonIsLinux)
for _, d := range s.daemons {
d.Stop()
}
s.daemons = nil
s.portIndex = 0
s.ds.TearDownTest(c)
}
func init() {
check.Suite(&DockerTrustSuite{
ds: &DockerSuite{},

47
integration-cli/daemon.go
View File

@ -1,6 +1,7 @@
package main
import (
"bytes"
"encoding/json"
"errors"
"fmt"
@ -292,9 +293,9 @@ out1:
select {
case err := <-d.wait:
return err
case <-time.After(15 * time.Second):
case <-time.After(20 * time.Second):
// time for stopping jobs and run onShutdown hooks
d.c.Log("timeout")
d.c.Logf("timeout: %v", d.id)
break out1
}
}
@ -306,7 +307,7 @@ out2:
return err
case <-tick:
i++
if i > 4 {
if i > 5 {
d.c.Logf("tried to interrupt daemon for %d times, now try to kill it", i)
break out2
}
@ -452,6 +453,27 @@ func (d *Daemon) CmdWithArgs(daemonArgs []string, name string, arg ...string) (s
return string(b), err
}
// SockRequest executes a socket request on a daemon and returns statuscode and output.
func (d *Daemon) SockRequest(method, endpoint string, data interface{}) (int, []byte, error) {
jsonData := bytes.NewBuffer(nil)
if err := json.NewEncoder(jsonData).Encode(data); err != nil {
return -1, nil, err
}
res, body, err := d.SockRequestRaw(method, endpoint, jsonData, "application/json")
if err != nil {
return -1, nil, err
}
b, err := readBody(body)
return res.StatusCode, b, err
}
// SockRequestRaw executes a socket request on a daemon and returns a http
// response and a reader for the output data.
func (d *Daemon) SockRequestRaw(method, endpoint string, data io.Reader, ct string) (*http.Response, io.ReadCloser, error) {
return sockRequestRawToDaemon(method, endpoint, data, ct, d.sock())
}
// LogFileName returns the path the the daemon's log file
func (d *Daemon) LogFileName() string {
return d.logFile.Name()
@ -461,6 +483,16 @@ func (d *Daemon) getIDByName(name string) (string, error) {
return d.inspectFieldWithError(name, "Id")
}
func (d *Daemon) activeContainers() (ids []string) {
out, _ := d.Cmd("ps", "-q")
for _, id := range strings.Split(out, "\n") {
if id = strings.TrimSpace(id); id != "" {
ids = append(ids, id)
}
}
return
}
func (d *Daemon) inspectFilter(name, filter string) (string, error) {
format := fmt.Sprintf("{{%s}}", filter)
out, err := d.Cmd("inspect", "-f", format, name)
@ -486,3 +518,12 @@ func (d *Daemon) buildImageWithOut(name, dockerfile string, useCache bool, build
buildCmd := buildImageCmdWithHost(name, dockerfile, d.sock(), useCache, buildFlags...)
return runCommandWithOutput(buildCmd)
}
func (d *Daemon) checkActiveContainerCount(c *check.C) (interface{}, check.CommentInterface) {
out, err := d.Cmd("ps", "-q")
c.Assert(err, checker.IsNil)
if len(strings.TrimSpace(out)) == 0 {
return 0, nil
}
return len(strings.Split(strings.TrimSpace(out), "\n")), check.Commentf("output: %q", string(out))
}

178
integration-cli/daemon_swarm.go Normal file
View File

@ -0,0 +1,178 @@
package main
import (
"encoding/json"
"fmt"
"net/http"
"strings"
"github.com/docker/docker/pkg/integration/checker"
"github.com/docker/engine-api/types"
"github.com/docker/engine-api/types/swarm"
"github.com/go-check/check"
)
// SwarmDaemon is a test daemon with helpers for participating in a swarm.
type SwarmDaemon struct {
*Daemon
swarm.Info
port int
listenAddr string
}
// Init initializes a new swarm cluster.
func (d *SwarmDaemon) Init(autoAccept map[string]bool, secret string) error {
req := swarm.InitRequest{
ListenAddr: d.listenAddr,
}
for _, role := range []swarm.NodeRole{swarm.NodeRoleManager, swarm.NodeRoleWorker} {
req.Spec.AcceptancePolicy.Policies = append(req.Spec.AcceptancePolicy.Policies, swarm.Policy{
Role: role,
Autoaccept: autoAccept[strings.ToLower(string(role))],
Secret: secret,
})
}
status, out, err := d.SockRequest("POST", "/swarm/init", req)
if status != http.StatusOK {
return fmt.Errorf("initializing swarm: invalid statuscode %v, %q", status, out)
}
if err != nil {
return fmt.Errorf("initializing swarm: %v", err)
}
info, err := d.info()
if err != nil {
return err
}
d.Info = info
return nil
}
// Join joins a current daemon with existing cluster.
func (d *SwarmDaemon) Join(remoteAddr, secret, cahash string, manager bool) error {
status, out, err := d.SockRequest("POST", "/swarm/join", swarm.JoinRequest{
ListenAddr: d.listenAddr,
RemoteAddrs: []string{remoteAddr},
Manager: manager,
Secret: secret,
CACertHash: cahash,
})
if status != http.StatusOK {
return fmt.Errorf("joining swarm: invalid statuscode %v, %q", status, out)
}
if err != nil {
return fmt.Errorf("joining swarm: %v", err)
}
info, err := d.info()
if err != nil {
return err
}
d.Info = info
return nil
}
// Leave forces daemon to leave current cluster.
func (d *SwarmDaemon) Leave(force bool) error {
url := "/swarm/leave"
if force {
url += "?force=1"
}
status, out, err := d.SockRequest("POST", url, nil)
if status != http.StatusOK {
return fmt.Errorf("leaving swarm: invalid statuscode %v, %q", status, out)
}
if err != nil {
err = fmt.Errorf("leaving swarm: %v", err)
}
return err
}
func (d *SwarmDaemon) info() (swarm.Info, error) {
var info struct {
Swarm swarm.Info
}
status, dt, err := d.SockRequest("GET", "/info", nil)
if status != http.StatusOK {
return info.Swarm, fmt.Errorf("get swarm info: invalid statuscode %v", status)
}
if err != nil {
return info.Swarm, fmt.Errorf("get swarm info: %v", err)
}
if err := json.Unmarshal(dt, &info); err != nil {
return info.Swarm, err
}
return info.Swarm, nil
}
type serviceConstructor func(*swarm.Service)
type nodeConstructor func(*swarm.Node)
func (d *SwarmDaemon) createService(c *check.C, f ...serviceConstructor) string {
var service swarm.Service
for _, fn := range f {
fn(&service)
}
status, out, err := d.SockRequest("POST", "/services/create", service.Spec)
c.Assert(err, checker.IsNil)
c.Assert(status, checker.Equals, http.StatusCreated, check.Commentf("output: %q", string(out)))
var scr types.ServiceCreateResponse
c.Assert(json.Unmarshal(out, &scr), checker.IsNil)
return scr.ID
}
func (d *SwarmDaemon) getService(c *check.C, id string) *swarm.Service {
var service swarm.Service
status, out, err := d.SockRequest("GET", "/services/"+id, nil)
c.Assert(status, checker.Equals, http.StatusOK, check.Commentf("output: %q", string(out)))
c.Assert(err, checker.IsNil)
c.Assert(json.Unmarshal(out, &service), checker.IsNil)
c.Assert(service.ID, checker.Equals, id)
return &service
}
func (d *SwarmDaemon) updateService(c *check.C, service *swarm.Service, f ...serviceConstructor) {
for _, fn := range f {
fn(service)
}
url := fmt.Sprintf("/services/%s/update?version=%d", service.ID, 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)))
}
func (d *SwarmDaemon) removeService(c *check.C, id string) {
status, out, err := d.SockRequest("DELETE", "/services/"+id, nil)
c.Assert(status, checker.Equals, http.StatusOK, check.Commentf("output: %q", string(out)))
c.Assert(err, checker.IsNil)
}
func (d *SwarmDaemon) getNode(c *check.C, id string) *swarm.Node {
var node swarm.Node
status, out, err := d.SockRequest("GET", "/nodes/"+id, nil)
c.Assert(status, checker.Equals, http.StatusOK, check.Commentf("output: %q", string(out)))
c.Assert(err, checker.IsNil)
c.Assert(json.Unmarshal(out, &node), checker.IsNil)
c.Assert(node.ID, checker.Equals, id)
return &node
}
func (d *SwarmDaemon) updateNode(c *check.C, node *swarm.Node, f ...nodeConstructor) {
for _, fn := range f {
fn(node)
}
url := fmt.Sprintf("/nodes/%s/update?version=%d", node.ID, node.Version.Index)
status, out, err := d.SockRequest("POST", url, node.Spec)
c.Assert(err, checker.IsNil)
c.Assert(status, checker.Equals, http.StatusOK, check.Commentf("output: %q", string(out)))
}
func (d *SwarmDaemon) listNodes(c *check.C) []swarm.Node {
status, out, err := d.SockRequest("GET", "/nodes", nil)
c.Assert(err, checker.IsNil)
c.Assert(status, checker.Equals, http.StatusOK, check.Commentf("output: %q", string(out)))
nodes := []swarm.Node{}
c.Assert(json.Unmarshal(out, &nodes), checker.IsNil)
return nodes
}

4
integration-cli/docker_api_attach_test.go
View File

@ -17,7 +17,7 @@ func (s *DockerSuite) TestGetContainersAttachWebsocket(c *check.C) {
testRequires(c, DaemonIsLinux)
out, _ := dockerCmd(c, "run", "-dit", "busybox", "cat")
rwc, err := sockConn(time.Duration(10 * time.Second))
rwc, err := sockConn(time.Duration(10*time.Second), "")
c.Assert(err, checker.IsNil)
cleanedContainerID := strings.TrimSpace(out)
@ -67,7 +67,7 @@ func (s *DockerSuite) TestGetContainersAttachWebsocket(c *check.C) {
// regression gh14320
func (s *DockerSuite) TestPostContainersAttachContainerNotFound(c *check.C) {
req, client, err := newRequestClient("POST", "/containers/doesnotexist/attach", nil, "")
req, client, err := newRequestClient("POST", "/containers/doesnotexist/attach", nil, "", "")
c.Assert(err, checker.IsNil)
resp, err := client.Do(req)

2
integration-cli/docker_api_containers_test.go
View File

@ -1076,7 +1076,7 @@ func (s *DockerSuite) TestContainerApiChunkedEncoding(c *check.C) {
// TODO Windows CI: This can be ported
testRequires(c, DaemonIsLinux)
conn, err := sockConn(time.Duration(10 * time.Second))
conn, err := sockConn(time.Duration(10*time.Second), "")
c.Assert(err, checker.IsNil)
client := httputil.NewClientConn(conn, nil)
defer client.Close()

573
integration-cli/docker_api_swarm_test.go Normal file
View File

@ -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{},
}
}

2
integration-cli/docker_api_test.go
View File

@ -34,7 +34,7 @@ func (s *DockerSuite) TestApiGetEnabledCors(c *check.C) {
}
func (s *DockerSuite) TestApiVersionStatusCode(c *check.C) {
conn, err := sockConn(time.Duration(10 * time.Second))
conn, err := sockConn(time.Duration(10*time.Second), "")
c.Assert(err, checker.IsNil)
client := httputil.NewClientConn(conn, nil)

65
integration-cli/docker_utils.go
View File

@ -124,8 +124,10 @@ func getTLSConfig() (*tls.Config, error) {
return tlsConfig, nil
}
func sockConn(timeout time.Duration) (net.Conn, error) {
daemon := daemonHost()
func sockConn(timeout time.Duration, daemon string) (net.Conn, error) {
if daemon == "" {
daemon = daemonHost()
}
daemonURL, err := url.Parse(daemon)
if err != nil {
return nil, fmt.Errorf("could not parse url %q: %v", daemon, err)
@ -168,7 +170,11 @@ func sockRequest(method, endpoint string, data interface{}) (int, []byte, error)
}
func sockRequestRaw(method, endpoint string, data io.Reader, ct string) (*http.Response, io.ReadCloser, error) {
req, client, err := newRequestClient(method, endpoint, data, ct)
return sockRequestRawToDaemon(method, endpoint, data, ct, "")
}
func sockRequestRawToDaemon(method, endpoint string, data io.Reader, ct, daemon string) (*http.Response, io.ReadCloser, error) {
req, client, err := newRequestClient(method, endpoint, data, ct, daemon)
if err != nil {
return nil, nil, err
}
@ -187,7 +193,7 @@ func sockRequestRaw(method, endpoint string, data io.Reader, ct string) (*http.R
}
func sockRequestHijack(method, endpoint string, data io.Reader, ct string) (net.Conn, *bufio.Reader, error) {
req, client, err := newRequestClient(method, endpoint, data, ct)
req, client, err := newRequestClient(method, endpoint, data, ct, "")
if err != nil {
return nil, nil, err
}
@ -197,8 +203,8 @@ func sockRequestHijack(method, endpoint string, data io.Reader, ct string) (net.
return conn, br, nil
}
func newRequestClient(method, endpoint string, data io.Reader, ct string) (*http.Request, *httputil.ClientConn, error) {
c, err := sockConn(time.Duration(10 * time.Second))
func newRequestClient(method, endpoint string, data io.Reader, ct, daemon string) (*http.Request, *httputil.ClientConn, error) {
c, err := sockConn(time.Duration(10*time.Second), daemon)
if err != nil {
return nil, nil, fmt.Errorf("could not dial docker daemon: %v", err)
}
@ -1514,3 +1520,50 @@ func getErrorMessage(c *check.C, body []byte) string {
c.Assert(json.Unmarshal(body, &resp), check.IsNil)
return strings.TrimSpace(resp.Message)
}
func waitAndAssert(c *check.C, timeout time.Duration, f checkF, checker check.Checker, args ...interface{}) {
after := time.After(timeout)
for {
v, comment := f(c)
assert, _ := checker.Check(append([]interface{}{v}, args...), checker.Info().Params)
select {
case <-after:
assert = true
default:
}
if assert {
if comment != nil {
args = append(args, comment)
}
c.Assert(v, checker, args...)
return
}
time.Sleep(100 * time.Millisecond)
}
}
type checkF func(*check.C) (interface{}, check.CommentInterface)
type reducer func(...interface{}) interface{}
func reducedCheck(r reducer, funcs ...checkF) checkF {
return func(c *check.C) (interface{}, check.CommentInterface) {
var values []interface{}
var comments []string
for _, f := range funcs {
v, comment := f(c)
values = append(values, v)
if comment != nil {
comments = append(comments, comment.CheckCommentString())
}
}
return r(values...), check.Commentf("%v", strings.Join(comments, ", "))
}
}
func sumAsIntegers(vals ...interface{}) interface{} {
var s int
for _, v := range vals {
s += v.(int)
}
return s
}