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moby--moby/libnetwork/libnetwork_test.go

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package libnetwork_test
import (
"bytes"
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/http/httptest"
"os"
"os/exec"
"runtime"
"strconv"
"strings"
"sync"
"testing"
log "github.com/Sirupsen/logrus"
"github.com/docker/docker/pkg/plugins"
"github.com/docker/docker/pkg/reexec"
"github.com/docker/libnetwork"
"github.com/docker/libnetwork/config"
"github.com/docker/libnetwork/datastore"
"github.com/docker/libnetwork/driverapi"
"github.com/docker/libnetwork/ipamapi"
"github.com/docker/libnetwork/netlabel"
"github.com/docker/libnetwork/options"
"github.com/docker/libnetwork/osl"
"github.com/docker/libnetwork/testutils"
"github.com/docker/libnetwork/types"
"github.com/opencontainers/runc/libcontainer"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/vishvananda/netlink"
"github.com/vishvananda/netns"
)
const (
bridgeNetType = "bridge"
)
var controller libnetwork.NetworkController
func TestMain(m *testing.M) {
if reexec.Init() {
return
}
if err := createController(); err != nil {
log.Errorf("Error creating controller: %v", err)
os.Exit(1)
}
x := m.Run()
controller.Stop()
os.Exit(x)
}
func createController() error {
var err error
// Cleanup local datastore file
os.Remove(datastore.DefaultScopes("")[datastore.LocalScope].Client.Address)
option := options.Generic{
"EnableIPForwarding": true,
}
genericOption := make(map[string]interface{})
genericOption[netlabel.GenericData] = option
cfgOptions, err := libnetwork.OptionBoltdbWithRandomDBFile()
if err != nil {
return err
}
controller, err = libnetwork.New(append(cfgOptions, config.OptionDriverConfig(bridgeNetType, genericOption))...)
if err != nil {
return err
}
return nil
}
func createTestNetwork(networkType, networkName string, netOption options.Generic, ipamV4Configs, ipamV6Configs []*libnetwork.IpamConf) (libnetwork.Network, error) {
return controller.NewNetwork(networkType, networkName, "",
libnetwork.NetworkOptionGeneric(netOption),
libnetwork.NetworkOptionIpam(ipamapi.DefaultIPAM, "", ipamV4Configs, ipamV6Configs, nil))
}
func getEmptyGenericOption() map[string]interface{} {
genericOption := make(map[string]interface{})
genericOption[netlabel.GenericData] = options.Generic{}
return genericOption
}
func getPortMapping() []types.PortBinding {
return []types.PortBinding{
{Proto: types.TCP, Port: uint16(230), HostPort: uint16(23000)},
{Proto: types.UDP, Port: uint16(200), HostPort: uint16(22000)},
{Proto: types.TCP, Port: uint16(120), HostPort: uint16(12000)},
{Proto: types.TCP, Port: uint16(320), HostPort: uint16(32000), HostPortEnd: uint16(32999)},
{Proto: types.UDP, Port: uint16(420), HostPort: uint16(42000), HostPortEnd: uint16(42001)},
}
}
func TestNull(t *testing.T) {
cnt, err := controller.NewSandbox("null_container",
libnetwork.OptionHostname("test"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionExtraHost("web", "192.168.0.1"))
if err != nil {
t.Fatal(err)
}
network, err := createTestNetwork("null", "testnull", options.Generic{}, nil, nil)
if err != nil {
t.Fatal(err)
}
ep, err := network.CreateEndpoint("testep")
if err != nil {
t.Fatal(err)
}
err = ep.Join(cnt)
if err != nil {
t.Fatal(err)
}
err = ep.Leave(cnt)
if err != nil {
t.Fatal(err)
}
if err := ep.Delete(false); err != nil {
t.Fatal(err)
}
if err := cnt.Delete(); err != nil {
t.Fatal(err)
}
// host type is special network. Cannot be removed.
err = network.Delete()
if err == nil {
t.Fatal(err)
}
if _, ok := err.(types.ForbiddenError); !ok {
t.Fatalf("Unexpected error type")
}
}
func TestHost(t *testing.T) {
sbx1, err := controller.NewSandbox("host_c1",
libnetwork.OptionHostname("test1"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionExtraHost("web", "192.168.0.1"),
libnetwork.OptionUseDefaultSandbox())
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sbx1.Delete(); err != nil {
t.Fatal(err)
}
}()
sbx2, err := controller.NewSandbox("host_c2",
libnetwork.OptionHostname("test2"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionExtraHost("web", "192.168.0.1"),
libnetwork.OptionUseDefaultSandbox())
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sbx2.Delete(); err != nil {
t.Fatal(err)
}
}()
network, err := createTestNetwork("host", "testhost", options.Generic{}, nil, nil)
if err != nil {
t.Fatal(err)
}
ep1, err := network.CreateEndpoint("testep1")
if err != nil {
t.Fatal(err)
}
if err := ep1.Join(sbx1); err != nil {
t.Fatal(err)
}
ep2, err := network.CreateEndpoint("testep2")
if err != nil {
t.Fatal(err)
}
if err := ep2.Join(sbx2); err != nil {
t.Fatal(err)
}
if err := ep1.Leave(sbx1); err != nil {
t.Fatal(err)
}
if err := ep2.Leave(sbx2); err != nil {
t.Fatal(err)
}
if err := ep1.Delete(false); err != nil {
t.Fatal(err)
}
if err := ep2.Delete(false); err != nil {
t.Fatal(err)
}
// Try to create another host endpoint and join/leave that.
cnt3, err := controller.NewSandbox("host_c3",
libnetwork.OptionHostname("test3"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionExtraHost("web", "192.168.0.1"),
libnetwork.OptionUseDefaultSandbox())
if err != nil {
t.Fatal(err)
}
defer func() {
if err := cnt3.Delete(); err != nil {
t.Fatal(err)
}
}()
ep3, err := network.CreateEndpoint("testep3")
if err != nil {
t.Fatal(err)
}
if err := ep3.Join(sbx2); err != nil {
t.Fatal(err)
}
if err := ep3.Leave(sbx2); err != nil {
t.Fatal(err)
}
if err := ep3.Delete(false); err != nil {
t.Fatal(err)
}
}
func TestBridge(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
netOption := options.Generic{
netlabel.EnableIPv6: true,
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
"EnableICC": true,
"EnableIPMasquerade": true,
},
}
ipamV4ConfList := []*libnetwork.IpamConf{{PreferredPool: "192.168.100.0/24", Gateway: "192.168.100.1"}}
ipamV6ConfList := []*libnetwork.IpamConf{{PreferredPool: "fe90::/64", Gateway: "fe90::22"}}
network, err := createTestNetwork(bridgeNetType, "testnetwork", netOption, ipamV4ConfList, ipamV6ConfList)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := network.Delete(); err != nil {
t.Fatal(err)
}
}()
ep, err := network.CreateEndpoint("testep")
if err != nil {
t.Fatal(err)
}
sb, err := controller.NewSandbox(containerID, libnetwork.OptionPortMapping(getPortMapping()))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sb.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep.Join(sb)
if err != nil {
t.Fatal(err)
}
epInfo, err := ep.DriverInfo()
if err != nil {
t.Fatal(err)
}
pmd, ok := epInfo[netlabel.PortMap]
if !ok {
t.Fatalf("Could not find expected info in endpoint data")
}
pm, ok := pmd.([]types.PortBinding)
if !ok {
t.Fatalf("Unexpected format for port mapping in endpoint operational data")
}
if len(pm) != 5 {
t.Fatalf("Incomplete data for port mapping in endpoint operational data: %d", len(pm))
}
}
// Testing IPV6 from MAC address
func TestBridgeIpv6FromMac(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testipv6mac",
"EnableICC": true,
"EnableIPMasquerade": true,
},
}
ipamV4ConfList := []*libnetwork.IpamConf{{PreferredPool: "192.168.100.0/24", Gateway: "192.168.100.1"}}
ipamV6ConfList := []*libnetwork.IpamConf{{PreferredPool: "fe90::/64", Gateway: "fe90::22"}}
network, err := controller.NewNetwork(bridgeNetType, "testipv6mac", "",
libnetwork.NetworkOptionGeneric(netOption),
libnetwork.NetworkOptionEnableIPv6(true),
libnetwork.NetworkOptionIpam(ipamapi.DefaultIPAM, "", ipamV4ConfList, ipamV6ConfList, nil),
libnetwork.NetworkOptionDeferIPv6Alloc(true))
if err != nil {
t.Fatal(err)
}
mac := net.HardwareAddr{0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff}
epOption := options.Generic{netlabel.MacAddress: mac}
ep, err := network.CreateEndpoint("testep", libnetwork.EndpointOptionGeneric(epOption))
if err != nil {
t.Fatal(err)
}
iface := ep.Info().Iface()
if !bytes.Equal(iface.MacAddress(), mac) {
t.Fatalf("Unexpected mac address: %v", iface.MacAddress())
}
ip, expIP, _ := net.ParseCIDR("fe90::aabb:ccdd:eeff/64")
expIP.IP = ip
if !types.CompareIPNet(expIP, iface.AddressIPv6()) {
t.Fatalf("Expected %v. Got: %v", expIP, iface.AddressIPv6())
}
if err := ep.Delete(false); err != nil {
t.Fatal(err)
}
if err := network.Delete(); err != nil {
t.Fatal(err)
}
}
func TestUnknownDriver(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
_, err := createTestNetwork("unknowndriver", "testnetwork", options.Generic{}, nil, nil)
if err == nil {
t.Fatal("Expected to fail. But instead succeeded")
}
if _, ok := err.(types.NotFoundError); !ok {
t.Fatalf("Did not fail with expected error. Actual error: %v", err)
}
}
func TestNilRemoteDriver(t *testing.T) {
_, err := controller.NewNetwork("framerelay", "dummy", "",
libnetwork.NetworkOptionGeneric(getEmptyGenericOption()))
if err == nil {
t.Fatal("Expected to fail. But instead succeeded")
}
if _, ok := err.(types.NotFoundError); !ok {
t.Fatalf("Did not fail with expected error. Actual error: %v", err)
}
}
func TestNetworkName(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}
_, err := createTestNetwork(bridgeNetType, "", netOption, nil, nil)
if err == nil {
t.Fatal("Expected to fail. But instead succeeded")
}
if _, ok := err.(libnetwork.ErrInvalidName); !ok {
t.Fatalf("Expected to fail with ErrInvalidName error. Got %v", err)
}
networkName := "testnetwork"
n, err := createTestNetwork(bridgeNetType, networkName, netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
if n.Name() != networkName {
t.Fatalf("Expected network name %s, got %s", networkName, n.Name())
}
}
func TestNetworkType(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}
n, err := createTestNetwork(bridgeNetType, "testnetwork", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
if n.Type() != bridgeNetType {
t.Fatalf("Expected network type %s, got %s", bridgeNetType, n.Type())
}
}
func TestNetworkID(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}
n, err := createTestNetwork(bridgeNetType, "testnetwork", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
if n.ID() == "" {
t.Fatal("Expected non-empty network id")
}
}
func TestDeleteNetworkWithActiveEndpoints(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
netOption := options.Generic{
"BridgeName": "testnetwork",
}
option := options.Generic{
netlabel.GenericData: netOption,
}
network, err := createTestNetwork(bridgeNetType, "testnetwork", option, nil, nil)
if err != nil {
t.Fatal(err)
}
ep, err := network.CreateEndpoint("testep")
if err != nil {
t.Fatal(err)
}
err = network.Delete()
if err == nil {
t.Fatal("Expected to fail. But instead succeeded")
}
if _, ok := err.(*libnetwork.ActiveEndpointsError); !ok {
t.Fatalf("Did not fail with expected error. Actual error: %v", err)
}
// Done testing. Now cleanup.
if err := ep.Delete(false); err != nil {
t.Fatal(err)
}
if err := network.Delete(); err != nil {
t.Fatal(err)
}
}
func TestUnknownNetwork(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
netOption := options.Generic{
"BridgeName": "testnetwork",
}
option := options.Generic{
netlabel.GenericData: netOption,
}
network, err := createTestNetwork(bridgeNetType, "testnetwork", option, nil, nil)
if err != nil {
t.Fatal(err)
}
err = network.Delete()
if err != nil {
t.Fatal(err)
}
err = network.Delete()
if err == nil {
t.Fatal("Expected to fail. But instead succeeded")
}
if _, ok := err.(*libnetwork.UnknownNetworkError); !ok {
t.Fatalf("Did not fail with expected error. Actual error: %v", err)
}
}
func TestUnknownEndpoint(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
netOption := options.Generic{
"BridgeName": "testnetwork",
}
option := options.Generic{
netlabel.GenericData: netOption,
}
ipamV4ConfList := []*libnetwork.IpamConf{{PreferredPool: "192.168.100.0/24"}}
network, err := createTestNetwork(bridgeNetType, "testnetwork", option, ipamV4ConfList, nil)
if err != nil {
t.Fatal(err)
}
_, err = network.CreateEndpoint("")
if err == nil {
t.Fatal("Expected to fail. But instead succeeded")
}
if _, ok := err.(libnetwork.ErrInvalidName); !ok {
t.Fatalf("Expected to fail with ErrInvalidName error. Actual error: %v", err)
}
ep, err := network.CreateEndpoint("testep")
if err != nil {
t.Fatal(err)
}
err = ep.Delete(false)
if err != nil {
t.Fatal(err)
}
// Done testing. Now cleanup
if err := network.Delete(); err != nil {
t.Fatal(err)
}
}
func TestNetworkEndpointsWalkers(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
// Create network 1 and add 2 endpoint: ep11, ep12
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "network1",
},
}
net1, err := createTestNetwork(bridgeNetType, "network1", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := net1.Delete(); err != nil {
t.Fatal(err)
}
}()
ep11, err := net1.CreateEndpoint("ep11")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := ep11.Delete(false); err != nil {
t.Fatal(err)
}
}()
ep12, err := net1.CreateEndpoint("ep12")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := ep12.Delete(false); err != nil {
t.Fatal(err)
}
}()
// Test list methods on net1
epList1 := net1.Endpoints()
if len(epList1) != 2 {
t.Fatalf("Endpoints() returned wrong number of elements: %d instead of 2", len(epList1))
}
// endpoint order is not guaranteed
for _, e := range epList1 {
if e != ep11 && e != ep12 {
t.Fatal("Endpoints() did not return all the expected elements")
}
}
// Test Endpoint Walk method
var epName string
var epWanted libnetwork.Endpoint
wlk := func(ep libnetwork.Endpoint) bool {
if ep.Name() == epName {
epWanted = ep
return true
}
return false
}
// Look for ep1 on network1
epName = "ep11"
net1.WalkEndpoints(wlk)
if epWanted == nil {
t.Fatal(err)
}
if ep11 != epWanted {
t.Fatal(err)
}
current := len(controller.Networks())
// Create network 2
netOption = options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "network2",
},
}
net2, err := createTestNetwork(bridgeNetType, "network2", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := net2.Delete(); err != nil {
t.Fatal(err)
}
}()
// Test Networks method
if len(controller.Networks()) != current+1 {
t.Fatalf("Did not find the expected number of networks")
}
// Test Network Walk method
var netName string
var netWanted libnetwork.Network
nwWlk := func(nw libnetwork.Network) bool {
if nw.Name() == netName {
netWanted = nw
return true
}
return false
}
// Look for network named "network1" and "network2"
netName = "network1"
controller.WalkNetworks(nwWlk)
if netWanted == nil {
t.Fatal(err)
}
if net1.ID() != netWanted.ID() {
t.Fatal(err)
}
netName = "network2"
controller.WalkNetworks(nwWlk)
if netWanted == nil {
t.Fatal(err)
}
if net2.ID() != netWanted.ID() {
t.Fatal(err)
}
}
func TestDuplicateEndpoint(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}
n, err := createTestNetwork(bridgeNetType, "testnetwork", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
ep, err := n.CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := ep.Delete(false); err != nil {
t.Fatal(err)
}
}()
ep2, err := n.CreateEndpoint("ep1")
defer func() {
// Cleanup ep2 as well, else network cleanup might fail for failure cases
if ep2 != nil {
if err := ep2.Delete(false); err != nil {
t.Fatal(err)
}
}
}()
if err == nil {
t.Fatal("Expected to fail. But instead succeeded")
}
if _, ok := err.(types.ForbiddenError); !ok {
t.Fatalf("Did not fail with expected error. Actual error: %v", err)
}
}
func TestControllerQuery(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
// Create network 1
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "network1",
},
}
net1, err := createTestNetwork(bridgeNetType, "network1", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := net1.Delete(); err != nil {
t.Fatal(err)
}
}()
// Create network 2
netOption = options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "network2",
},
}
net2, err := createTestNetwork(bridgeNetType, "network2", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := net2.Delete(); err != nil {
t.Fatal(err)
}
}()
_, err = controller.NetworkByName("")
if err == nil {
t.Fatalf("NetworkByName() succeeded with invalid target name")
}
if _, ok := err.(libnetwork.ErrInvalidName); !ok {
t.Fatalf("Expected NetworkByName() to fail with ErrInvalidName error. Got: %v", err)
}
_, err = controller.NetworkByID("")
if err == nil {
t.Fatalf("NetworkByID() succeeded with invalid target id")
}
if _, ok := err.(libnetwork.ErrInvalidID); !ok {
t.Fatalf("NetworkByID() failed with unexpected error: %v", err)
}
g, err := controller.NetworkByID("network1")
if err == nil {
t.Fatalf("Unexpected success for NetworkByID(): %v", g)
}
if _, ok := err.(libnetwork.ErrNoSuchNetwork); !ok {
t.Fatalf("NetworkByID() failed with unexpected error: %v", err)
}
g, err = controller.NetworkByName("network1")
if err != nil {
t.Fatalf("Unexpected failure for NetworkByName(): %v", err)
}
if g == nil {
t.Fatalf("NetworkByName() did not find the network")
}
if g != net1 {
t.Fatalf("NetworkByName() returned the wrong network")
}
g, err = controller.NetworkByID(net1.ID())
if err != nil {
t.Fatalf("Unexpected failure for NetworkByID(): %v", err)
}
if net1.ID() != g.ID() {
t.Fatalf("NetworkByID() returned unexpected element: %v", g)
}
g, err = controller.NetworkByName("network2")
if err != nil {
t.Fatalf("Unexpected failure for NetworkByName(): %v", err)
}
if g == nil {
t.Fatalf("NetworkByName() did not find the network")
}
if g != net2 {
t.Fatalf("NetworkByName() returned the wrong network")
}
g, err = controller.NetworkByID(net2.ID())
if err != nil {
t.Fatalf("Unexpected failure for NetworkByID(): %v", err)
}
if net2.ID() != g.ID() {
t.Fatalf("NetworkByID() returned unexpected element: %v", g)
}
}
func TestNetworkQuery(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
// Create network 1 and add 2 endpoint: ep11, ep12
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "network1",
},
}
net1, err := createTestNetwork(bridgeNetType, "network1", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := net1.Delete(); err != nil {
t.Fatal(err)
}
}()
ep11, err := net1.CreateEndpoint("ep11")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := ep11.Delete(false); err != nil {
t.Fatal(err)
}
}()
ep12, err := net1.CreateEndpoint("ep12")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := ep12.Delete(false); err != nil {
t.Fatal(err)
}
}()
e, err := net1.EndpointByName("ep11")
if err != nil {
t.Fatal(err)
}
if ep11 != e {
t.Fatalf("EndpointByName() returned %v instead of %v", e, ep11)
}
e, err = net1.EndpointByName("")
if err == nil {
t.Fatalf("EndpointByName() succeeded with invalid target name")
}
if _, ok := err.(libnetwork.ErrInvalidName); !ok {
t.Fatalf("Expected EndpointByName() to fail with ErrInvalidName error. Got: %v", err)
}
e, err = net1.EndpointByName("IamNotAnEndpoint")
if err == nil {
t.Fatalf("EndpointByName() succeeded with unknown target name")
}
if _, ok := err.(libnetwork.ErrNoSuchEndpoint); !ok {
t.Fatal(err)
}
if e != nil {
t.Fatalf("EndpointByName(): expected nil, got %v", e)
}
e, err = net1.EndpointByID(ep12.ID())
if err != nil {
t.Fatal(err)
}
if ep12.ID() != e.ID() {
t.Fatalf("EndpointByID() returned %v instead of %v", e, ep12)
}
e, err = net1.EndpointByID("")
if err == nil {
t.Fatalf("EndpointByID() succeeded with invalid target id")
}
if _, ok := err.(libnetwork.ErrInvalidID); !ok {
t.Fatalf("EndpointByID() failed with unexpected error: %v", err)
}
}
const containerID = "valid_c"
func checkSandbox(t *testing.T, info libnetwork.EndpointInfo) {
key := info.Sandbox().Key()
sbNs, err := netns.GetFromPath(key)
if err != nil {
t.Fatalf("Failed to get network namespace path %q: %v", key, err)
}
defer sbNs.Close()
nh, err := netlink.NewHandleAt(sbNs)
if err != nil {
t.Fatal(err)
}
_, err = nh.LinkByName("eth0")
if err != nil {
t.Fatalf("Could not find the interface eth0 inside the sandbox: %v", err)
}
_, err = nh.LinkByName("eth1")
if err != nil {
t.Fatalf("Could not find the interface eth1 inside the sandbox: %v", err)
}
}
func TestEndpointJoin(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
// Create network 1 and add 2 endpoint: ep11, ep12
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork1",
"EnableICC": true,
"EnableIPMasquerade": true,
},
}
ipamV6ConfList := []*libnetwork.IpamConf{{PreferredPool: "fe90::/64", Gateway: "fe90::22"}}
n1, err := controller.NewNetwork(bridgeNetType, "testnetwork1", "",
libnetwork.NetworkOptionGeneric(netOption),
libnetwork.NetworkOptionEnableIPv6(true),
libnetwork.NetworkOptionIpam(ipamapi.DefaultIPAM, "", nil, ipamV6ConfList, nil),
libnetwork.NetworkOptionDeferIPv6Alloc(true))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n1.Delete(); err != nil {
t.Fatal(err)
}
}()
ep1, err := n1.CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := ep1.Delete(false); err != nil {
t.Fatal(err)
}
}()
// Validate if ep.Info() only gives me IP address info and not names and gateway during CreateEndpoint()
info := ep1.Info()
iface := info.Iface()
if iface.Address() != nil && iface.Address().IP.To4() == nil {
t.Fatalf("Invalid IP address returned: %v", iface.Address())
}
if iface.AddressIPv6() != nil && iface.AddressIPv6().IP == nil {
t.Fatalf("Invalid IPv6 address returned: %v", iface.Address())
}
if len(info.Gateway()) != 0 {
t.Fatalf("Expected empty gateway for an empty endpoint. Instead found a gateway: %v", info.Gateway())
}
if len(info.GatewayIPv6()) != 0 {
t.Fatalf("Expected empty gateway for an empty ipv6 endpoint. Instead found a gateway: %v", info.GatewayIPv6())
}
if info.Sandbox() != nil {
t.Fatalf("Expected an empty sandbox key for an empty endpoint. Instead found a non-empty sandbox key: %s", info.Sandbox().Key())
}
// test invalid joins
err = ep1.Join(nil)
if err == nil {
t.Fatalf("Expected to fail join with nil Sandbox")
}
if _, ok := err.(types.BadRequestError); !ok {
t.Fatalf("Unexpected error type returned: %T", err)
}
fsbx := &fakeSandbox{}
if err = ep1.Join(fsbx); err == nil {
t.Fatalf("Expected to fail join with invalid Sandbox")
}
if _, ok := err.(types.BadRequestError); !ok {
t.Fatalf("Unexpected error type returned: %T", err)
}
sb, err := controller.NewSandbox(containerID,
libnetwork.OptionHostname("test"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionExtraHost("web", "192.168.0.1"))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sb.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep1.Join(sb)
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep1.Leave(sb)
if err != nil {
t.Fatal(err)
}
}()
// Validate if ep.Info() only gives valid gateway and sandbox key after has container has joined.
info = ep1.Info()
if len(info.Gateway()) == 0 {
t.Fatalf("Expected a valid gateway for a joined endpoint. Instead found an invalid gateway: %v", info.Gateway())
}
if len(info.GatewayIPv6()) == 0 {
t.Fatalf("Expected a valid ipv6 gateway for a joined endpoint. Instead found an invalid gateway: %v", info.GatewayIPv6())
}
if info.Sandbox() == nil {
t.Fatalf("Expected a non-empty sandbox key for a joined endpoint. Instead found an empty sandbox key")
}
// Check endpoint provided container information
if ep1.Info().Sandbox().Key() != sb.Key() {
t.Fatalf("Endpoint Info returned unexpected sandbox key: %s", sb.Key())
}
// Attempt retrieval of endpoint interfaces statistics
stats, err := sb.Statistics()
if err != nil {
t.Fatal(err)
}
if _, ok := stats["eth0"]; !ok {
t.Fatalf("Did not find eth0 statistics")
}
// Now test the container joining another network
n2, err := createTestNetwork(bridgeNetType, "testnetwork2",
options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork2",
},
}, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n2.Delete(); err != nil {
t.Fatal(err)
}
}()
ep2, err := n2.CreateEndpoint("ep2")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := ep2.Delete(false); err != nil {
t.Fatal(err)
}
}()
err = ep2.Join(sb)
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep2.Leave(sb)
if err != nil {
t.Fatal(err)
}
}()
if ep1.Info().Sandbox().Key() != ep2.Info().Sandbox().Key() {
t.Fatalf("ep1 and ep2 returned different container sandbox key")
}
checkSandbox(t, info)
}
type fakeSandbox struct{}
func (f *fakeSandbox) ID() string {
return "fake sandbox"
}
func (f *fakeSandbox) ContainerID() string {
return ""
}
func (f *fakeSandbox) Key() string {
return "fake key"
}
func (f *fakeSandbox) Labels() map[string]interface{} {
return nil
}
func (f *fakeSandbox) Statistics() (map[string]*types.InterfaceStatistics, error) {
return nil, nil
}
func (f *fakeSandbox) Refresh(opts ...libnetwork.SandboxOption) error {
return nil
}
func (f *fakeSandbox) Delete() error {
return nil
}
func (f *fakeSandbox) Rename(name string) error {
return nil
}
func (f *fakeSandbox) SetKey(key string) error {
return nil
}
func (f *fakeSandbox) ResolveName(name string, ipType int) ([]net.IP, bool) {
return nil, false
}
func (f *fakeSandbox) ResolveIP(ip string) string {
return ""
}
func (f *fakeSandbox) ResolveService(name string) ([]*net.SRV, []net.IP, error) {
return nil, nil, nil
}
func (f *fakeSandbox) Endpoints() []libnetwork.Endpoint {
return nil
}
func TestExternalKey(t *testing.T) {
externalKeyTest(t, false)
}
func externalKeyTest(t *testing.T, reexec bool) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
n, err := createTestNetwork(bridgeNetType, "testnetwork", options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
ep, err := n.CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep.Delete(false)
if err != nil {
t.Fatal(err)
}
}()
ep2, err := n.CreateEndpoint("ep2")
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep2.Delete(false)
if err != nil {
t.Fatal(err)
}
}()
cnt, err := controller.NewSandbox(containerID,
libnetwork.OptionHostname("test"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionUseExternalKey(),
libnetwork.OptionExtraHost("web", "192.168.0.1"))
defer func() {
if err := cnt.Delete(); err != nil {
t.Fatal(err)
}
osl.GC()
}()
// Join endpoint to sandbox before SetKey
err = ep.Join(cnt)
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep.Leave(cnt)
if err != nil {
t.Fatal(err)
}
}()
sbox := ep.Info().Sandbox()
if sbox == nil {
t.Fatalf("Expected to have a valid Sandbox")
}
if reexec {
err := reexecSetKey("this-must-fail", containerID, controller.ID())
if err == nil {
t.Fatalf("SetExternalKey must fail if the corresponding namespace is not created")
}
} else {
// Setting a non-existing key (namespace) must fail
if err := sbox.SetKey("this-must-fail"); err == nil {
t.Fatalf("Setkey must fail if the corresponding namespace is not created")
}
}
// Create a new OS sandbox using the osl API before using it in SetKey
if extOsBox, err := osl.NewSandbox("ValidKey", true, false); err != nil {
t.Fatalf("Failed to create new osl sandbox")
} else {
defer func() {
if err := extOsBox.Destroy(); err != nil {
log.Warnf("Failed to remove os sandbox: %v", err)
}
}()
}
if reexec {
err := reexecSetKey("ValidKey", containerID, controller.ID())
if err != nil {
t.Fatalf("SetExternalKey failed with %v", err)
}
} else {
if err := sbox.SetKey("ValidKey"); err != nil {
t.Fatalf("Setkey failed with %v", err)
}
}
// Join endpoint to sandbox after SetKey
err = ep2.Join(sbox)
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep2.Leave(sbox)
if err != nil {
t.Fatal(err)
}
}()
if ep.Info().Sandbox().Key() != ep2.Info().Sandbox().Key() {
t.Fatalf("ep1 and ep2 returned different container sandbox key")
}
checkSandbox(t, ep.Info())
}
func reexecSetKey(key string, containerID string, controllerID string) error {
var (
state libcontainer.State
b []byte
err error
)
state.NamespacePaths = make(map[configs.NamespaceType]string)
state.NamespacePaths[configs.NamespaceType("NEWNET")] = key
if b, err = json.Marshal(state); err != nil {
return err
}
cmd := &exec.Cmd{
Path: reexec.Self(),
Args: append([]string{"libnetwork-setkey"}, containerID, controllerID),
Stdin: strings.NewReader(string(b)),
Stdout: os.Stdout,
Stderr: os.Stderr,
}
return cmd.Run()
}
func TestEndpointDeleteWithActiveContainer(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
n, err := createTestNetwork(bridgeNetType, "testnetwork", options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
ep, err := n.CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep.Delete(false)
if err != nil {
t.Fatal(err)
}
}()
cnt, err := controller.NewSandbox(containerID,
libnetwork.OptionHostname("test"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionExtraHost("web", "192.168.0.1"))
defer func() {
if err := cnt.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep.Join(cnt)
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep.Leave(cnt)
if err != nil {
t.Fatal(err)
}
}()
err = ep.Delete(false)
if err == nil {
t.Fatal("Expected to fail. But instead succeeded")
}
if _, ok := err.(*libnetwork.ActiveContainerError); !ok {
t.Fatalf("Did not fail with expected error. Actual error: %v", err)
}
}
func TestEndpointMultipleJoins(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
n, err := createTestNetwork(bridgeNetType, "testmultiple", options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testmultiple",
},
}, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
ep, err := n.CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := ep.Delete(false); err != nil {
t.Fatal(err)
}
}()
sbx1, err := controller.NewSandbox(containerID,
libnetwork.OptionHostname("test"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionExtraHost("web", "192.168.0.1"))
defer func() {
if err := sbx1.Delete(); err != nil {
t.Fatal(err)
}
}()
sbx2, err := controller.NewSandbox("c2")
defer func() {
if err := sbx2.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep.Join(sbx1)
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep.Leave(sbx1)
if err != nil {
t.Fatal(err)
}
}()
err = ep.Join(sbx2)
if err == nil {
t.Fatal("Expected to fail multiple joins for the same endpoint")
}
if _, ok := err.(types.ForbiddenError); !ok {
t.Fatalf("Failed with unexpected error type: %T. Desc: %s", err, err.Error())
}
}
func TestLeaveAll(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
n, err := createTestNetwork(bridgeNetType, "testnetwork", options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
// If this goes through, it means cnt.Delete() effectively detached from all the endpoints
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
ep1, err := n.CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
ep2, err := n.CreateEndpoint("ep2")
if err != nil {
t.Fatal(err)
}
cnt, err := controller.NewSandbox("leaveall")
if err != nil {
t.Fatal(err)
}
err = ep1.Join(cnt)
if err != nil {
t.Fatalf("Failed to join ep1: %v", err)
}
err = ep2.Join(cnt)
if err != nil {
t.Fatalf("Failed to join ep2: %v", err)
}
err = cnt.Delete()
if err != nil {
t.Fatal(err)
}
}
func TestontainerInvalidLeave(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
n, err := createTestNetwork(bridgeNetType, "testnetwork", options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
ep, err := n.CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := ep.Delete(false); err != nil {
t.Fatal(err)
}
}()
cnt, err := controller.NewSandbox(containerID,
libnetwork.OptionHostname("test"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionExtraHost("web", "192.168.0.1"))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := cnt.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep.Leave(cnt)
if err == nil {
t.Fatal("Expected to fail leave from an endpoint which has no active join")
}
if _, ok := err.(types.ForbiddenError); !ok {
t.Fatalf("Failed with unexpected error type: %T. Desc: %s", err, err.Error())
}
if err := ep.Leave(nil); err == nil {
t.Fatalf("Expected to fail leave nil Sandbox")
}
if _, ok := err.(types.BadRequestError); !ok {
t.Fatalf("Unexpected error type returned: %T", err)
}
fsbx := &fakeSandbox{}
if err = ep.Leave(fsbx); err == nil {
t.Fatalf("Expected to fail leave with invalid Sandbox")
}
if _, ok := err.(types.BadRequestError); !ok {
t.Fatalf("Unexpected error type returned: %T", err)
}
}
func TestEndpointUpdateParent(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
n, err := createTestNetwork("bridge", "testnetwork", options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
ep1, err := n.CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
ep2, err := n.CreateEndpoint("ep2")
if err != nil {
t.Fatal(err)
}
sbx1, err := controller.NewSandbox(containerID,
libnetwork.OptionHostname("test"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionExtraHost("web", "192.168.0.1"))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sbx1.Delete(); err != nil {
t.Fatal(err)
}
}()
sbx2, err := controller.NewSandbox("c2",
libnetwork.OptionHostname("test2"),
libnetwork.OptionDomainname("docker.io"),
libnetwork.OptionHostsPath("/var/lib/docker/test_network/container2/hosts"),
libnetwork.OptionExtraHost("web", "192.168.0.2"))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sbx2.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep1.Join(sbx1)
if err != nil {
t.Fatal(err)
}
err = ep2.Join(sbx2)
if err != nil {
t.Fatal(err)
}
}
func TestEnableIPv6(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
tmpResolvConf := []byte("search pommesfrites.fr\nnameserver 12.34.56.78\nnameserver 2001:4860:4860::8888\n")
expectedResolvConf := []byte("search pommesfrites.fr\nnameserver 127.0.0.11\nnameserver 2001:4860:4860::8888\noptions ndots:0\n")
//take a copy of resolv.conf for restoring after test completes
resolvConfSystem, err := ioutil.ReadFile("/etc/resolv.conf")
if err != nil {
t.Fatal(err)
}
//cleanup
defer func() {
if err := ioutil.WriteFile("/etc/resolv.conf", resolvConfSystem, 0644); err != nil {
t.Fatal(err)
}
}()
netOption := options.Generic{
netlabel.EnableIPv6: true,
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}
ipamV6ConfList := []*libnetwork.IpamConf{{PreferredPool: "fe99::/64", Gateway: "fe99::9"}}
n, err := createTestNetwork("bridge", "testnetwork", netOption, nil, ipamV6ConfList)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
ep1, err := n.CreateEndpoint("ep1")
if err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile("/etc/resolv.conf", tmpResolvConf, 0644); err != nil {
t.Fatal(err)
}
resolvConfPath := "/tmp/libnetwork_test/resolv.conf"
defer os.Remove(resolvConfPath)
sb, err := controller.NewSandbox(containerID, libnetwork.OptionResolvConfPath(resolvConfPath))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sb.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep1.Join(sb)
if err != nil {
t.Fatal(err)
}
content, err := ioutil.ReadFile(resolvConfPath)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(content, expectedResolvConf) {
t.Fatalf("Expected:\n%s\nGot:\n%s", string(expectedResolvConf), string(content))
}
if err != nil {
t.Fatal(err)
}
}
func TestResolvConfHost(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
tmpResolvConf := []byte("search localhost.net\nnameserver 127.0.0.1\nnameserver 2001:4860:4860::8888\n")
//take a copy of resolv.conf for restoring after test completes
resolvConfSystem, err := ioutil.ReadFile("/etc/resolv.conf")
if err != nil {
t.Fatal(err)
}
//cleanup
defer func() {
if err := ioutil.WriteFile("/etc/resolv.conf", resolvConfSystem, 0644); err != nil {
t.Fatal(err)
}
}()
n, err := controller.NetworkByName("testhost")
if err != nil {
t.Fatal(err)
}
ep1, err := n.CreateEndpoint("ep1", libnetwork.CreateOptionDisableResolution())
if err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile("/etc/resolv.conf", tmpResolvConf, 0644); err != nil {
t.Fatal(err)
}
resolvConfPath := "/tmp/libnetwork_test/resolv.conf"
defer os.Remove(resolvConfPath)
sb, err := controller.NewSandbox(containerID,
libnetwork.OptionResolvConfPath(resolvConfPath),
libnetwork.OptionOriginResolvConfPath("/etc/resolv.conf"))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sb.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep1.Join(sb)
if err != nil {
t.Fatal(err)
}
defer func() {
err = ep1.Leave(sb)
if err != nil {
t.Fatal(err)
}
}()
finfo, err := os.Stat(resolvConfPath)
if err != nil {
t.Fatal(err)
}
fmode := (os.FileMode)(0644)
if finfo.Mode() != fmode {
t.Fatalf("Expected file mode %s, got %s", fmode.String(), finfo.Mode().String())
}
content, err := ioutil.ReadFile(resolvConfPath)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(content, tmpResolvConf) {
t.Fatalf("Expected:\n%s\nGot:\n%s", string(tmpResolvConf), string(content))
}
}
func TestResolvConf(t *testing.T) {
if !testutils.IsRunningInContainer() {
defer testutils.SetupTestOSContext(t)()
}
tmpResolvConf1 := []byte("search pommesfrites.fr\nnameserver 12.34.56.78\nnameserver 2001:4860:4860::8888\n")
tmpResolvConf2 := []byte("search pommesfrites.fr\nnameserver 112.34.56.78\nnameserver 2001:4860:4860::8888\n")
expectedResolvConf1 := []byte("search pommesfrites.fr\nnameserver 127.0.0.11\noptions ndots:0\n")
tmpResolvConf3 := []byte("search pommesfrites.fr\nnameserver 113.34.56.78\n")
//take a copy of resolv.conf for restoring after test completes
resolvConfSystem, err := ioutil.ReadFile("/etc/resolv.conf")
if err != nil {
t.Fatal(err)
}
//cleanup
defer func() {
if err := ioutil.WriteFile("/etc/resolv.conf", resolvConfSystem, 0644); err != nil {
t.Fatal(err)
}
}()
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "testnetwork",
},
}
n, err := createTestNetwork("bridge", "testnetwork", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
ep, err := n.CreateEndpoint("ep")
if err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile("/etc/resolv.conf", tmpResolvConf1, 0644); err != nil {
t.Fatal(err)
}
resolvConfPath := "/tmp/libnetwork_test/resolv.conf"
defer os.Remove(resolvConfPath)
sb1, err := controller.NewSandbox(containerID, libnetwork.OptionResolvConfPath(resolvConfPath))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sb1.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep.Join(sb1)
if err != nil {
t.Fatal(err)
}
finfo, err := os.Stat(resolvConfPath)
if err != nil {
t.Fatal(err)
}
fmode := (os.FileMode)(0644)
if finfo.Mode() != fmode {
t.Fatalf("Expected file mode %s, got %s", fmode.String(), finfo.Mode().String())
}
content, err := ioutil.ReadFile(resolvConfPath)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(content, expectedResolvConf1) {
fmt.Printf("\n%v\n%v\n", expectedResolvConf1, content)
t.Fatalf("Expected:\n%s\nGot:\n%s", string(expectedResolvConf1), string(content))
}
err = ep.Leave(sb1)
if err != nil {
t.Fatal(err)
}
if err := ioutil.WriteFile("/etc/resolv.conf", tmpResolvConf2, 0644); err != nil {
t.Fatal(err)
}
sb2, err := controller.NewSandbox(containerID+"_2", libnetwork.OptionResolvConfPath(resolvConfPath))
if err != nil {
t.Fatal(err)
}
defer func() {
if err := sb2.Delete(); err != nil {
t.Fatal(err)
}
}()
err = ep.Join(sb2)
if err != nil {
t.Fatal(err)
}
content, err = ioutil.ReadFile(resolvConfPath)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(content, expectedResolvConf1) {
t.Fatalf("Expected:\n%s\nGot:\n%s", string(expectedResolvConf1), string(content))
}
if err := ioutil.WriteFile(resolvConfPath, tmpResolvConf3, 0644); err != nil {
t.Fatal(err)
}
err = ep.Leave(sb2)
if err != nil {
t.Fatal(err)
}
err = ep.Join(sb2)
if err != nil {
t.Fatal(err)
}
content, err = ioutil.ReadFile(resolvConfPath)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(content, tmpResolvConf3) {
t.Fatalf("Expected:\n%s\nGot:\n%s", string(tmpResolvConf3), string(content))
}
}
func TestInvalidRemoteDriver(t *testing.T) {
if !testutils.IsRunningInContainer() {
t.Skip("Skipping test when not running inside a Container")
}
mux := http.NewServeMux()
server := httptest.NewServer(mux)
if server == nil {
t.Fatal("Failed to start an HTTP Server")
}
defer server.Close()
type pluginRequest struct {
name string
}
mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
fmt.Fprintln(w, `{"Implements": ["InvalidDriver"]}`)
})
if err := os.MkdirAll("/etc/docker/plugins", 0755); err != nil {
t.Fatal(err)
}
defer func() {
if err := os.RemoveAll("/etc/docker/plugins"); err != nil {
t.Fatal(err)
}
}()
if err := ioutil.WriteFile("/etc/docker/plugins/invalid-network-driver.spec", []byte(server.URL), 0644); err != nil {
t.Fatal(err)
}
ctrlr, err := libnetwork.New()
if err != nil {
t.Fatal(err)
}
defer ctrlr.Stop()
_, err = ctrlr.NewNetwork("invalid-network-driver", "dummy", "",
libnetwork.NetworkOptionGeneric(getEmptyGenericOption()))
if err == nil {
t.Fatal("Expected to fail. But instead succeeded")
}
if err != plugins.ErrNotImplements {
t.Fatalf("Did not fail with expected error. Actual error: %v", err)
}
}
func TestValidRemoteDriver(t *testing.T) {
if !testutils.IsRunningInContainer() {
t.Skip("Skipping test when not running inside a Container")
}
mux := http.NewServeMux()
server := httptest.NewServer(mux)
if server == nil {
t.Fatal("Failed to start an HTTP Server")
}
defer server.Close()
type pluginRequest struct {
name string
}
mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
fmt.Fprintf(w, `{"Implements": ["%s"]}`, driverapi.NetworkPluginEndpointType)
})
mux.HandleFunc(fmt.Sprintf("/%s.CreateNetwork", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
fmt.Fprintf(w, "null")
})
if err := os.MkdirAll("/etc/docker/plugins", 0755); err != nil {
t.Fatal(err)
}
defer func() {
if err := os.RemoveAll("/etc/docker/plugins"); err != nil {
t.Fatal(err)
}
}()
if err := ioutil.WriteFile("/etc/docker/plugins/valid-network-driver.spec", []byte(server.URL), 0644); err != nil {
t.Fatal(err)
}
n, err := controller.NewNetwork("valid-network-driver", "dummy", "",
libnetwork.NetworkOptionGeneric(getEmptyGenericOption()))
if err != nil {
// Only fail if we could not find the plugin driver
if _, ok := err.(types.NotFoundError); ok {
t.Fatal(err)
}
return
}
defer func() {
if err := n.Delete(); err != nil {
t.Fatal(err)
}
}()
}
var (
once sync.Once
start = make(chan struct{})
done = make(chan chan struct{}, numThreads-1)
origns = netns.None()
testns = netns.None()
sboxes = make([]libnetwork.Sandbox, numThreads)
)
const (
iterCnt = 25
numThreads = 3
first = 1
last = numThreads
debug = false
)
func createGlobalInstance(t *testing.T) {
var err error
defer close(start)
origns, err = netns.Get()
if err != nil {
t.Fatal(err)
}
if testutils.IsRunningInContainer() {
testns = origns
} else {
testns, err = netns.New()
if err != nil {
t.Fatal(err)
}
}
netOption := options.Generic{
netlabel.GenericData: options.Generic{
"BridgeName": "network",
},
}
net1, err := controller.NetworkByName("testhost")
if err != nil {
t.Fatal(err)
}
net2, err := createTestNetwork("bridge", "network2", netOption, nil, nil)
if err != nil {
t.Fatal(err)
}
_, err = net1.CreateEndpoint("pep1")
if err != nil {
t.Fatal(err)
}
_, err = net2.CreateEndpoint("pep2")
if err != nil {
t.Fatal(err)
}
_, err = net2.CreateEndpoint("pep3")
if err != nil {
t.Fatal(err)
}
if sboxes[first-1], err = controller.NewSandbox(fmt.Sprintf("%drace", first), libnetwork.OptionUseDefaultSandbox()); err != nil {
t.Fatal(err)
}
for thd := first + 1; thd <= last; thd++ {
if sboxes[thd-1], err = controller.NewSandbox(fmt.Sprintf("%drace", thd)); err != nil {
t.Fatal(err)
}
}
}
func debugf(format string, a ...interface{}) (int, error) {
if debug {
return fmt.Printf(format, a...)
}
return 0, nil
}
func parallelJoin(t *testing.T, rc libnetwork.Sandbox, ep libnetwork.Endpoint, thrNumber int) {
debugf("J%d.", thrNumber)
var err error
sb := sboxes[thrNumber-1]
err = ep.Join(sb)
runtime.LockOSThread()
if err != nil {
if _, ok := err.(types.ForbiddenError); !ok {
t.Fatalf("thread %d: %v", thrNumber, err)
}
debugf("JE%d(%v).", thrNumber, err)
}
debugf("JD%d.", thrNumber)
}
func parallelLeave(t *testing.T, rc libnetwork.Sandbox, ep libnetwork.Endpoint, thrNumber int) {
debugf("L%d.", thrNumber)
var err error
sb := sboxes[thrNumber-1]
err = ep.Leave(sb)
runtime.LockOSThread()
if err != nil {
if _, ok := err.(types.ForbiddenError); !ok {
t.Fatalf("thread %d: %v", thrNumber, err)
}
debugf("LE%d(%v).", thrNumber, err)
}
debugf("LD%d.", thrNumber)
}
func runParallelTests(t *testing.T, thrNumber int) {
var (
ep libnetwork.Endpoint
sb libnetwork.Sandbox
err error
)
t.Parallel()
pTest := flag.Lookup("test.parallel")
if pTest == nil {
t.Skip("Skipped because test.parallel flag not set;")
}
numParallel, err := strconv.Atoi(pTest.Value.String())
if err != nil {
t.Fatal(err)
}
if numParallel < numThreads {
t.Skip("Skipped because t.parallel was less than ", numThreads)
}
runtime.LockOSThread()
defer runtime.UnlockOSThread()
if thrNumber == first {
createGlobalInstance(t)
}
if thrNumber != first {
select {
case <-start:
}
thrdone := make(chan struct{})
done <- thrdone
defer close(thrdone)
if thrNumber == last {
defer close(done)
}
err = netns.Set(testns)
if err != nil {
t.Fatal(err)
}
}
defer netns.Set(origns)
net1, err := controller.NetworkByName("testhost")
if err != nil {
t.Fatal(err)
}
if net1 == nil {
t.Fatal("Could not find testhost")
}
net2, err := controller.NetworkByName("network2")
if err != nil {
t.Fatal(err)
}
if net2 == nil {
t.Fatal("Could not find network2")
}
epName := fmt.Sprintf("pep%d", thrNumber)
if thrNumber == first {
ep, err = net1.EndpointByName(epName)
} else {
ep, err = net2.EndpointByName(epName)
}
if err != nil {
t.Fatal(err)
}
if ep == nil {
t.Fatal("Got nil ep with no error")
}
cid := fmt.Sprintf("%drace", thrNumber)
controller.WalkSandboxes(libnetwork.SandboxContainerWalker(&sb, cid))
if sb == nil {
t.Fatalf("Got nil sandbox for container: %s", cid)
}
for i := 0; i < iterCnt; i++ {
parallelJoin(t, sb, ep, thrNumber)
parallelLeave(t, sb, ep, thrNumber)
}
debugf("\n")
err = sb.Delete()
if err != nil {
t.Fatal(err)
}
if thrNumber == first {
for thrdone := range done {
select {
case <-thrdone:
}
}
testns.Close()
if err := net2.Delete(); err != nil {
t.Fatal(err)
}
} else {
err = ep.Delete(false)
if err != nil {
t.Fatal(err)
}
}
}
func TestParallel1(t *testing.T) {
runParallelTests(t, 1)
}
func TestParallel2(t *testing.T) {
runParallelTests(t, 2)
}
func TestParallel3(t *testing.T) {
runParallelTests(t, 3)
}
func TestNullIpam(t *testing.T) {
_, err := controller.NewNetwork(bridgeNetType, "testnetworkinternal", "", libnetwork.NetworkOptionIpam(ipamapi.NullIPAM, "", nil, nil, nil))
if err == nil || err.Error() != "ipv4 pool is empty" {
t.Fatal("bridge network should complain empty pool")
}
}