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moby--moby/daemon/daemon_test.go
Lei Jitang b9366c9609 Fix configuration reloading
There are five options 'debug' 'labels' 'cluster-store' 'cluster-store-opts'
and 'cluster-advertise' that can be reconfigured, configure any of these
options should not affect other options which may have configured in flags.
But this is not true, for example, I start a daemon with -D to enable the
debugging, and after a while, I want reconfigure the 'label', so I add a file
'/etc/docker/daemon.json' with content '"labels":["test"]' and send SIGHUP to daemon
to reconfigure the daemon, it work, but the debugging of the daemon is also diabled.
I don't think this is a expeted behaviour.
This patch also have some minor refactor of reconfiguration of cluster-advertiser.
Enable user to reconfigure cluster-advertiser without cluster-store in config file
since cluster-store could also be already set in flag, and we only want to reconfigure
the cluster-advertiser.

Signed-off-by: Lei Jitang <leijitang@huawei.com>
2016-02-24 21:12:14 -05:00

502 lines
15 KiB
Go

package daemon
import (
"io/ioutil"
"os"
"path/filepath"
"reflect"
"testing"
"time"
"github.com/docker/docker/container"
"github.com/docker/docker/pkg/discovery"
_ "github.com/docker/docker/pkg/discovery/memory"
"github.com/docker/docker/pkg/registrar"
"github.com/docker/docker/pkg/truncindex"
"github.com/docker/docker/volume"
volumedrivers "github.com/docker/docker/volume/drivers"
"github.com/docker/docker/volume/local"
"github.com/docker/docker/volume/store"
containertypes "github.com/docker/engine-api/types/container"
"github.com/docker/go-connections/nat"
)
//
// https://github.com/docker/docker/issues/8069
//
func TestGetContainer(t *testing.T) {
c1 := &container.Container{
CommonContainer: container.CommonContainer{
ID: "5a4ff6a163ad4533d22d69a2b8960bf7fafdcba06e72d2febdba229008b0bf57",
Name: "tender_bardeen",
},
}
c2 := &container.Container{
CommonContainer: container.CommonContainer{
ID: "3cdbd1aa394fd68559fd1441d6eff2ab7c1e6363582c82febfaa8045df3bd8de",
Name: "drunk_hawking",
},
}
c3 := &container.Container{
CommonContainer: container.CommonContainer{
ID: "3cdbd1aa394fd68559fd1441d6eff2abfafdcba06e72d2febdba229008b0bf57",
Name: "3cdbd1aa",
},
}
c4 := &container.Container{
CommonContainer: container.CommonContainer{
ID: "75fb0b800922abdbef2d27e60abcdfaf7fb0698b2a96d22d3354da361a6ff4a5",
Name: "5a4ff6a163ad4533d22d69a2b8960bf7fafdcba06e72d2febdba229008b0bf57",
},
}
c5 := &container.Container{
CommonContainer: container.CommonContainer{
ID: "d22d69a2b8960bf7fafdcba06e72d2febdba960bf7fafdcba06e72d2f9008b060b",
Name: "d22d69a2b896",
},
}
store := container.NewMemoryStore()
store.Add(c1.ID, c1)
store.Add(c2.ID, c2)
store.Add(c3.ID, c3)
store.Add(c4.ID, c4)
store.Add(c5.ID, c5)
index := truncindex.NewTruncIndex([]string{})
index.Add(c1.ID)
index.Add(c2.ID)
index.Add(c3.ID)
index.Add(c4.ID)
index.Add(c5.ID)
daemon := &Daemon{
containers: store,
idIndex: index,
nameIndex: registrar.NewRegistrar(),
}
daemon.reserveName(c1.ID, c1.Name)
daemon.reserveName(c2.ID, c2.Name)
daemon.reserveName(c3.ID, c3.Name)
daemon.reserveName(c4.ID, c4.Name)
daemon.reserveName(c5.ID, c5.Name)
if container, _ := daemon.GetContainer("3cdbd1aa394fd68559fd1441d6eff2ab7c1e6363582c82febfaa8045df3bd8de"); container != c2 {
t.Fatal("Should explicitly match full container IDs")
}
if container, _ := daemon.GetContainer("75fb0b8009"); container != c4 {
t.Fatal("Should match a partial ID")
}
if container, _ := daemon.GetContainer("drunk_hawking"); container != c2 {
t.Fatal("Should match a full name")
}
// c3.Name is a partial match for both c3.ID and c2.ID
if c, _ := daemon.GetContainer("3cdbd1aa"); c != c3 {
t.Fatal("Should match a full name even though it collides with another container's ID")
}
if container, _ := daemon.GetContainer("d22d69a2b896"); container != c5 {
t.Fatal("Should match a container where the provided prefix is an exact match to the it's name, and is also a prefix for it's ID")
}
if _, err := daemon.GetContainer("3cdbd1"); err == nil {
t.Fatal("Should return an error when provided a prefix that partially matches multiple container ID's")
}
if _, err := daemon.GetContainer("nothing"); err == nil {
t.Fatal("Should return an error when provided a prefix that is neither a name or a partial match to an ID")
}
}
func initDaemonWithVolumeStore(tmp string) (*Daemon, error) {
daemon := &Daemon{
repository: tmp,
root: tmp,
volumes: store.New(),
}
volumesDriver, err := local.New(tmp, 0, 0)
if err != nil {
return nil, err
}
volumedrivers.Register(volumesDriver, volumesDriver.Name())
return daemon, nil
}
func TestValidContainerNames(t *testing.T) {
invalidNames := []string{"-rm", "&sdfsfd", "safd%sd"}
validNames := []string{"word-word", "word_word", "1weoid"}
for _, name := range invalidNames {
if validContainerNamePattern.MatchString(name) {
t.Fatalf("%q is not a valid container name and was returned as valid.", name)
}
}
for _, name := range validNames {
if !validContainerNamePattern.MatchString(name) {
t.Fatalf("%q is a valid container name and was returned as invalid.", name)
}
}
}
func TestContainerInitDNS(t *testing.T) {
tmp, err := ioutil.TempDir("", "docker-container-test-")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmp)
containerID := "d59df5276e7b219d510fe70565e0404bc06350e0d4b43fe961f22f339980170e"
containerPath := filepath.Join(tmp, containerID)
if err := os.MkdirAll(containerPath, 0755); err != nil {
t.Fatal(err)
}
config := `{"State":{"Running":true,"Paused":false,"Restarting":false,"OOMKilled":false,"Dead":false,"Pid":2464,"ExitCode":0,
"Error":"","StartedAt":"2015-05-26T16:48:53.869308965Z","FinishedAt":"0001-01-01T00:00:00Z"},
"ID":"d59df5276e7b219d510fe70565e0404bc06350e0d4b43fe961f22f339980170e","Created":"2015-05-26T16:48:53.7987917Z","Path":"top",
"Args":[],"Config":{"Hostname":"d59df5276e7b","Domainname":"","User":"","Memory":0,"MemorySwap":0,"CpuShares":0,"Cpuset":"",
"AttachStdin":false,"AttachStdout":false,"AttachStderr":false,"PortSpecs":null,"ExposedPorts":null,"Tty":true,"OpenStdin":true,
"StdinOnce":false,"Env":null,"Cmd":["top"],"Image":"ubuntu:latest","Volumes":null,"WorkingDir":"","Entrypoint":null,
"NetworkDisabled":false,"MacAddress":"","OnBuild":null,"Labels":{}},"Image":"07f8e8c5e66084bef8f848877857537ffe1c47edd01a93af27e7161672ad0e95",
"NetworkSettings":{"IPAddress":"172.17.0.1","IPPrefixLen":16,"MacAddress":"02:42:ac:11:00:01","LinkLocalIPv6Address":"fe80::42:acff:fe11:1",
"LinkLocalIPv6PrefixLen":64,"GlobalIPv6Address":"","GlobalIPv6PrefixLen":0,"Gateway":"172.17.42.1","IPv6Gateway":"","Bridge":"docker0","Ports":{}},
"ResolvConfPath":"/var/lib/docker/containers/d59df5276e7b219d510fe70565e0404bc06350e0d4b43fe961f22f339980170e/resolv.conf",
"HostnamePath":"/var/lib/docker/containers/d59df5276e7b219d510fe70565e0404bc06350e0d4b43fe961f22f339980170e/hostname",
"HostsPath":"/var/lib/docker/containers/d59df5276e7b219d510fe70565e0404bc06350e0d4b43fe961f22f339980170e/hosts",
"LogPath":"/var/lib/docker/containers/d59df5276e7b219d510fe70565e0404bc06350e0d4b43fe961f22f339980170e/d59df5276e7b219d510fe70565e0404bc06350e0d4b43fe961f22f339980170e-json.log",
"Name":"/ubuntu","Driver":"aufs","MountLabel":"","ProcessLabel":"","AppArmorProfile":"","RestartCount":0,
"UpdateDns":false,"Volumes":{},"VolumesRW":{},"AppliedVolumesFrom":null}`
// Container struct only used to retrieve path to config file
container := &container.Container{CommonContainer: container.CommonContainer{Root: containerPath}}
configPath, err := container.ConfigPath()
if err != nil {
t.Fatal(err)
}
if err = ioutil.WriteFile(configPath, []byte(config), 0644); err != nil {
t.Fatal(err)
}
hostConfig := `{"Binds":[],"ContainerIDFile":"","Memory":0,"MemorySwap":0,"CpuShares":0,"CpusetCpus":"",
"Privileged":false,"PortBindings":{},"Links":null,"PublishAllPorts":false,"Dns":null,"DnsOptions":null,"DnsSearch":null,"ExtraHosts":null,"VolumesFrom":null,
"Devices":[],"NetworkMode":"bridge","IpcMode":"","PidMode":"","CapAdd":null,"CapDrop":null,"RestartPolicy":{"Name":"no","MaximumRetryCount":0},
"SecurityOpt":null,"ReadonlyRootfs":false,"Ulimits":null,"LogConfig":{"Type":"","Config":null},"CgroupParent":""}`
hostConfigPath, err := container.HostConfigPath()
if err != nil {
t.Fatal(err)
}
if err = ioutil.WriteFile(hostConfigPath, []byte(hostConfig), 0644); err != nil {
t.Fatal(err)
}
daemon, err := initDaemonWithVolumeStore(tmp)
if err != nil {
t.Fatal(err)
}
defer volumedrivers.Unregister(volume.DefaultDriverName)
c, err := daemon.load(containerID)
if err != nil {
t.Fatal(err)
}
if c.HostConfig.DNS == nil {
t.Fatal("Expected container DNS to not be nil")
}
if c.HostConfig.DNSSearch == nil {
t.Fatal("Expected container DNSSearch to not be nil")
}
if c.HostConfig.DNSOptions == nil {
t.Fatal("Expected container DNSOptions to not be nil")
}
}
func newPortNoError(proto, port string) nat.Port {
p, _ := nat.NewPort(proto, port)
return p
}
func TestMerge(t *testing.T) {
volumesImage := make(map[string]struct{})
volumesImage["/test1"] = struct{}{}
volumesImage["/test2"] = struct{}{}
portsImage := make(nat.PortSet)
portsImage[newPortNoError("tcp", "1111")] = struct{}{}
portsImage[newPortNoError("tcp", "2222")] = struct{}{}
configImage := &containertypes.Config{
ExposedPorts: portsImage,
Env: []string{"VAR1=1", "VAR2=2"},
Volumes: volumesImage,
}
portsUser := make(nat.PortSet)
portsUser[newPortNoError("tcp", "2222")] = struct{}{}
portsUser[newPortNoError("tcp", "3333")] = struct{}{}
volumesUser := make(map[string]struct{})
volumesUser["/test3"] = struct{}{}
configUser := &containertypes.Config{
ExposedPorts: portsUser,
Env: []string{"VAR2=3", "VAR3=3"},
Volumes: volumesUser,
}
if err := merge(configUser, configImage); err != nil {
t.Error(err)
}
if len(configUser.ExposedPorts) != 3 {
t.Fatalf("Expected 3 ExposedPorts, 1111, 2222 and 3333, found %d", len(configUser.ExposedPorts))
}
for portSpecs := range configUser.ExposedPorts {
if portSpecs.Port() != "1111" && portSpecs.Port() != "2222" && portSpecs.Port() != "3333" {
t.Fatalf("Expected 1111 or 2222 or 3333, found %s", portSpecs)
}
}
if len(configUser.Env) != 3 {
t.Fatalf("Expected 3 env var, VAR1=1, VAR2=3 and VAR3=3, found %d", len(configUser.Env))
}
for _, env := range configUser.Env {
if env != "VAR1=1" && env != "VAR2=3" && env != "VAR3=3" {
t.Fatalf("Expected VAR1=1 or VAR2=3 or VAR3=3, found %s", env)
}
}
if len(configUser.Volumes) != 3 {
t.Fatalf("Expected 3 volumes, /test1, /test2 and /test3, found %d", len(configUser.Volumes))
}
for v := range configUser.Volumes {
if v != "/test1" && v != "/test2" && v != "/test3" {
t.Fatalf("Expected /test1 or /test2 or /test3, found %s", v)
}
}
ports, _, err := nat.ParsePortSpecs([]string{"0000"})
if err != nil {
t.Error(err)
}
configImage2 := &containertypes.Config{
ExposedPorts: ports,
}
if err := merge(configUser, configImage2); err != nil {
t.Error(err)
}
if len(configUser.ExposedPorts) != 4 {
t.Fatalf("Expected 4 ExposedPorts, 0000, 1111, 2222 and 3333, found %d", len(configUser.ExposedPorts))
}
for portSpecs := range configUser.ExposedPorts {
if portSpecs.Port() != "0" && portSpecs.Port() != "1111" && portSpecs.Port() != "2222" && portSpecs.Port() != "3333" {
t.Fatalf("Expected %q or %q or %q or %q, found %s", 0, 1111, 2222, 3333, portSpecs)
}
}
}
func TestDaemonReloadLabels(t *testing.T) {
daemon := &Daemon{}
daemon.configStore = &Config{
CommonConfig: CommonConfig{
Labels: []string{"foo:bar"},
},
}
valuesSets := make(map[string]interface{})
valuesSets["label"] = "foo:baz"
newConfig := &Config{
CommonConfig: CommonConfig{
Labels: []string{"foo:baz"},
valuesSet: valuesSets,
},
}
daemon.Reload(newConfig)
label := daemon.configStore.Labels[0]
if label != "foo:baz" {
t.Fatalf("Expected daemon label `foo:baz`, got %s", label)
}
}
func TestDaemonReloadNotAffectOthers(t *testing.T) {
daemon := &Daemon{}
daemon.configStore = &Config{
CommonConfig: CommonConfig{
Labels: []string{"foo:bar"},
Debug: true,
},
}
valuesSets := make(map[string]interface{})
valuesSets["label"] = "foo:baz"
newConfig := &Config{
CommonConfig: CommonConfig{
Labels: []string{"foo:baz"},
valuesSet: valuesSets,
},
}
daemon.Reload(newConfig)
label := daemon.configStore.Labels[0]
if label != "foo:baz" {
t.Fatalf("Expected daemon label `foo:baz`, got %s", label)
}
debug := daemon.configStore.Debug
if !debug {
t.Fatalf("Expected debug 'enabled', got 'disabled'")
}
}
func TestDaemonDiscoveryReload(t *testing.T) {
daemon := &Daemon{}
daemon.configStore = &Config{
CommonConfig: CommonConfig{
ClusterStore: "memory://127.0.0.1",
ClusterAdvertise: "127.0.0.1:3333",
},
}
if err := daemon.initDiscovery(daemon.configStore); err != nil {
t.Fatal(err)
}
expected := discovery.Entries{
&discovery.Entry{Host: "127.0.0.1", Port: "3333"},
}
stopCh := make(chan struct{})
defer close(stopCh)
ch, errCh := daemon.discoveryWatcher.Watch(stopCh)
select {
case <-time.After(1 * time.Second):
t.Fatal("failed to get discovery advertisements in time")
case e := <-ch:
if !reflect.DeepEqual(e, expected) {
t.Fatalf("expected %v, got %v\n", expected, e)
}
case e := <-errCh:
t.Fatal(e)
}
valuesSets := make(map[string]interface{})
valuesSets["cluster-store"] = "memory://127.0.0.1:2222"
valuesSets["cluster-advertise"] = "127.0.0.1:5555"
newConfig := &Config{
CommonConfig: CommonConfig{
ClusterStore: "memory://127.0.0.1:2222",
ClusterAdvertise: "127.0.0.1:5555",
valuesSet: valuesSets,
},
}
expected = discovery.Entries{
&discovery.Entry{Host: "127.0.0.1", Port: "5555"},
}
if err := daemon.Reload(newConfig); err != nil {
t.Fatal(err)
}
ch, errCh = daemon.discoveryWatcher.Watch(stopCh)
select {
case <-time.After(1 * time.Second):
t.Fatal("failed to get discovery advertisements in time")
case e := <-ch:
if !reflect.DeepEqual(e, expected) {
t.Fatalf("expected %v, got %v\n", expected, e)
}
case e := <-errCh:
t.Fatal(e)
}
}
func TestDaemonDiscoveryReloadFromEmptyDiscovery(t *testing.T) {
daemon := &Daemon{}
daemon.configStore = &Config{}
valuesSet := make(map[string]interface{})
valuesSet["cluster-store"] = "memory://127.0.0.1:2222"
valuesSet["cluster-advertise"] = "127.0.0.1:5555"
newConfig := &Config{
CommonConfig: CommonConfig{
ClusterStore: "memory://127.0.0.1:2222",
ClusterAdvertise: "127.0.0.1:5555",
valuesSet: valuesSet,
},
}
expected := discovery.Entries{
&discovery.Entry{Host: "127.0.0.1", Port: "5555"},
}
if err := daemon.Reload(newConfig); err != nil {
t.Fatal(err)
}
stopCh := make(chan struct{})
defer close(stopCh)
ch, errCh := daemon.discoveryWatcher.Watch(stopCh)
select {
case <-time.After(1 * time.Second):
t.Fatal("failed to get discovery advertisements in time")
case e := <-ch:
if !reflect.DeepEqual(e, expected) {
t.Fatalf("expected %v, got %v\n", expected, e)
}
case e := <-errCh:
t.Fatal(e)
}
}
func TestDaemonDiscoveryReloadOnlyClusterAdvertise(t *testing.T) {
daemon := &Daemon{}
daemon.configStore = &Config{
CommonConfig: CommonConfig{
ClusterStore: "memory://127.0.0.1",
},
}
valuesSets := make(map[string]interface{})
valuesSets["cluster-advertise"] = "127.0.0.1:5555"
newConfig := &Config{
CommonConfig: CommonConfig{
ClusterAdvertise: "127.0.0.1:5555",
valuesSet: valuesSets,
},
}
expected := discovery.Entries{
&discovery.Entry{Host: "127.0.0.1", Port: "5555"},
}
if err := daemon.Reload(newConfig); err != nil {
t.Fatal(err)
}
stopCh := make(chan struct{})
defer close(stopCh)
ch, errCh := daemon.discoveryWatcher.Watch(stopCh)
select {
case <-time.After(1 * time.Second):
t.Fatal("failed to get discovery advertisements in time")
case e := <-ch:
if !reflect.DeepEqual(e, expected) {
t.Fatalf("expected %v, got %v\n", expected, e)
}
case e := <-errCh:
t.Fatal(e)
}
}