func TestWatchNetworkAdded(t *testing.T) {
msr := newDummyRegistry()
sm := NewMockManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
events := make(chan []Event)
go WatchNetworks(ctx, sm, events)
// skip over the initial snapshot
<-events
expected := "foobar"
msr.CreateNetwork(ctx, expected, `{"Network": "10.1.1.0/16", "Backend": {"Type": "bridge"}}`)
evtBatch := <-events
if len(evtBatch) != 1 {
t.Fatalf("WatchNetworks produced wrong sized event batch")
}
evt := evtBatch[0]
if evt.Type != EventAdded {
t.Fatalf("WatchNetworks produced wrong event type")
}
actual := evt.Network
if actual != expected {
t.Errorf("WatchNetworks produced wrong network: expected %s, got %s", expected, actual)
}
}
func TestWatchLeaseRemoved(t *testing.T) {
msr := newDummyRegistry(0)
sm := newEtcdManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
events := make(chan []Event)
go WatchLeases(ctx, sm, "", events)
// skip over the initial snapshot
<-events
expected := "10.3.4.0-24"
msr.expireSubnet(expected)
evtBatch := <-events
if len(evtBatch) != 1 {
t.Fatalf("WatchSubnets produced wrong sized event batch")
}
evt := evtBatch[0]
if evt.Type != SubnetRemoved {
t.Fatalf("WatchSubnets produced wrong event type")
}
actual := evt.Lease.Key()
if actual != expected {
t.Errorf("WatchSubnet produced wrong subnet: expected %s, got %s", expected, actual)
}
}
func TestSimpleHTTPClientDoCancelContextWaitForRoundTrip(t *testing.T) {
tr := newFakeTransport()
c := &simpleHTTPClient{transport: tr}
donechan := make(chan struct{})
ctx, cancel := context.WithCancel(context.Background())
go func() {
c.Do(ctx, &fakeAction{})
close(donechan)
}()
// This should call CancelRequest and begin the cancellation process
cancel()
select {
case <-donechan:
t.Fatalf("simpleHTTPClient.Do should not have exited yet")
default:
}
tr.finishCancel <- struct{}{}
select {
case <-donechan:
//expected behavior
return
case <-time.After(time.Second):
t.Fatalf("simpleHTTPClient.Do did not exit within 1s")
}
}
func TestRemoveReservation(t *testing.T) {
msr := newDummyRegistry()
sm := NewMockManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r := Reservation{
Subnet: newIP4Net("10.3.10.0", 24),
PublicIP: ip.MustParseIP4("52.195.12.13"),
}
if err := sm.AddReservation(ctx, "_", &r); err != nil {
t.Fatalf("failed to add reservation: %v", err)
}
if err := sm.RemoveReservation(ctx, "_", r.Subnet); err != nil {
t.Fatalf("failed to remove reservation: %v", err)
}
// The node should have a TTL
sub, _, err := msr.getSubnet(ctx, "_", r.Subnet)
if err != nil {
t.Fatalf("getSubnet failed: %v", err)
}
if sub.Expiration.IsZero() {
t.Fatalf("removed reservation resulted in no TTL")
}
}
func TestSimpleHTTPClientDoCancelContextResponseBodyClosed(t *testing.T) {
tr := newFakeTransport()
c := &simpleHTTPClient{transport: tr}
// create an already-cancelled context
ctx, cancel := context.WithCancel(context.Background())
cancel()
body := &checkableReadCloser{ReadCloser: ioutil.NopCloser(strings.NewReader("foo"))}
go func() {
// wait that simpleHTTPClient knows the context is already timed out,
// and calls CancelRequest
testutil.WaitSchedule()
// response is returned before cancel effects
tr.respchan <- &http.Response{Body: body}
}()
_, _, err := c.Do(ctx, &fakeAction{})
if err == nil {
t.Fatalf("expected non-nil error, got nil")
}
if !body.closed {
t.Fatalf("expected closed body")
}
}
func TestWatchGetNetworks(t *testing.T) {
msr := newDummyRegistry()
sm := NewMockManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// Kill the previously added "_" network
msr.DeleteNetwork(ctx, "_")
expected := "foobar"
msr.CreateNetwork(ctx, expected, `{"Network": "10.1.1.0/16", "Backend": {"Type": "bridge"}}`)
resp, err := sm.WatchNetworks(ctx, nil)
if err != nil {
t.Errorf("WatchNetworks(nil) failed:", err)
}
if len(resp.Snapshot) != 1 {
t.Errorf("WatchNetworks(nil) produced wrong number of networks: expected 1, got %d", len(resp.Snapshot))
}
if resp.Snapshot[0] != expected {
t.Errorf("WatchNetworks(nil) produced wrong network: expected %s, got %s", expected, resp.Snapshot[0])
}
}
func doTestWatchNetworks(t *testing.T, sm subnet.Manager, serverRegistry *subnet.MockSubnetRegistry) {
ctx, cancel := context.WithCancel(context.Background())
wg := sync.WaitGroup{}
wg.Add(1)
defer func() {
cancel()
wg.Wait()
}()
events := make(chan []subnet.Event)
go func() {
subnet.WatchNetworks(ctx, sm, events)
wg.Done()
}()
// skip over the initial snapshot
<-events
expectedNetname := "foobar"
config := fmt.Sprintf(`{"Network": %q}`, expectedNetwork)
err := serverRegistry.CreateNetwork(ctx, expectedNetname, config)
if err != nil {
t.Errorf("create network failed: %v", err)
}
evtBatch := <-events
if len(evtBatch) != 1 {
t.Fatalf("WatchNetworks create produced wrong sized event batch")
}
evt := evtBatch[0]
if evt.Type != subnet.EventAdded {
t.Fatalf("WatchNetworks create produced wrong event type")
}
if evt.Network != expectedNetname {
t.Errorf("WatchNetwork create produced wrong network: expected %s, got %s", expectedNetname, evt.Network)
}
err = serverRegistry.DeleteNetwork(ctx, expectedNetname)
if err != nil {
t.Errorf("delete network failed: %v", err)
}
evtBatch = <-events
if len(evtBatch) != 1 {
t.Fatalf("WatchNetworks delete produced wrong sized event batch")
}
evt = evtBatch[0]
if evt.Type != subnet.EventRemoved {
t.Fatalf("WatchNetworks delete produced wrong event type")
}
if evt.Network != expectedNetname {
t.Errorf("WatchNetwork delete produced wrong network: expected %s, got %s", expectedNetname, evt.Network)
}
}
func TestRenewLease(t *testing.T) {
msr := newDummyRegistry()
sm := NewMockManager(msr)
now := time.Now()
fakeClock := clockwork.NewFakeClockAt(now)
clock = fakeClock
// Create LeaseAttrs
extIaddr, _ := ip.ParseIP4("1.2.3.4")
attrs := LeaseAttrs{
PublicIP: extIaddr,
BackendType: "vxlan",
}
ld, err := json.Marshal(&leaseData{Dummy: "test string"})
if err != nil {
t.Fatalf("Failed to marshal leaseData: %v", err)
}
attrs.BackendData = json.RawMessage(ld)
// Acquire lease
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
l, err := sm.AcquireLease(ctx, "_", &attrs)
if err != nil {
t.Fatal("AcquireLease failed: ", err)
}
now = now.Add(subnetTTL)
fakeClock.Advance(24 * time.Hour)
if err := sm.RenewLease(ctx, "_", l); err != nil {
t.Fatal("RenewLease failed: ", err)
}
// check that it's still good
n, err := msr.getNetwork(ctx, "_")
if err != nil {
t.Error("Failed to renew lease: could not get networks: %v", err)
}
for _, sn := range n.subnets {
if sn.Subnet.Equal(l.Subnet) {
expected := now.Add(subnetTTL)
if !sn.Expiration.Equal(expected) {
t.Errorf("Failed to renew lease: bad expiration; expected %v, got %v", expected, sn.Expiration)
}
if !reflect.DeepEqual(sn.Attrs, attrs) {
t.Errorf("LeaseAttrs changed: was %#v, now %#v", attrs, sn.Attrs)
}
return
}
}
t.Fatalf("Failed to find acquired lease")
}
func New(sm subnet.Manager, network string) backend.Backend {
ctx, cancel := context.WithCancel(context.Background())
return &AllocBackend{
sm: sm,
network: network,
ctx: ctx,
cancel: cancel,
}
}
func TestRenewLease(t *testing.T) {
msr := newDummyRegistry(1)
sm := newEtcdManager(msr)
// Create LeaseAttrs
extIaddr, _ := ip.ParseIP4("1.2.3.4")
attrs := LeaseAttrs{
PublicIP: extIaddr,
BackendType: "vxlan",
}
ld, err := json.Marshal(&leaseData{Dummy: "test string"})
if err != nil {
t.Fatalf("Failed to marshal leaseData: %v", err)
}
attrs.BackendData = json.RawMessage(ld)
// Acquire lease
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
l, err := sm.AcquireLease(ctx, "_", &attrs)
if err != nil {
t.Fatal("AcquireLease failed: ", err)
}
go LeaseRenewer(ctx, sm, "_", l)
fmt.Println("Waiting for lease to pass original expiration")
time.Sleep(2 * time.Second)
// check that it's still good
net, err := msr.getNetwork(ctx, "_")
if err != nil {
t.Error("Failed to renew lease: could not get networks: %v", err)
}
for _, n := range net.Node.Nodes {
if n.Key == l.Subnet.StringSep(".", "-") {
if n.Expiration.Before(time.Now()) {
t.Error("Failed to renew lease: expiration did not advance")
}
a := LeaseAttrs{}
if err := json.Unmarshal([]byte(n.Value), &a); err != nil {
t.Errorf("Failed to JSON-decode LeaseAttrs: %v", err)
return
}
if !reflect.DeepEqual(a, attrs) {
t.Errorf("LeaseAttrs changed: was %#v, now %#v", attrs, a)
}
return
}
}
t.Fatalf("Failed to find acquired lease")
}
func TestWatchLeaseAdded(t *testing.T) {
msr := newDummyRegistry()
sm := NewMockManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
l := acquireLease(ctx, t, sm)
events := make(chan []Event)
go WatchLeases(ctx, sm, "_", l, events)
evtBatch := <-events
for _, evt := range evtBatch {
if evt.Lease.Key() == l.Key() {
t.Errorf("WatchLeases returned our own lease")
}
}
expected := ip.IP4Net{
IP: ip.MustParseIP4("10.3.30.0"),
PrefixLen: 24,
}
// Sanity check to make sure acquired lease is not this.
// It shouldn't be as SubnetMin/SubnetMax in config is [10.3.1.0/24 to 10.3.25.0/24]
if l.Subnet.Equal(expected) {
t.Fatalf("Acquired lease conflicts with one about to create")
}
attrs := &LeaseAttrs{
PublicIP: ip.MustParseIP4("1.1.1.1"),
}
_, err := msr.createSubnet(ctx, "_", expected, attrs, 0)
if err != nil {
t.Fatalf("createSubnet filed: %v", err)
}
evtBatch = <-events
if len(evtBatch) != 1 {
t.Fatalf("WatchLeases produced wrong sized event batch: got %v, expected 1", len(evtBatch))
}
evt := evtBatch[0]
if evt.Type != EventAdded {
t.Fatalf("WatchLeases produced wrong event type")
}
actual := evt.Lease.Subnet
if !actual.Equal(expected) {
t.Errorf("WatchSubnet produced wrong subnet: expected %s, got %s", expected, actual)
}
}
func NewNetwork(ctx context.Context, sm subnet.Manager, name string, ipMasq bool) *Network {
ctx, cancel := context.WithCancel(ctx)
return &Network{
Name: name,
ctx: ctx,
cancelFunc: cancel,
sm: sm,
ipMasq: ipMasq,
}
}
func New(sm subnet.Manager, network string, config *subnet.Config) backend.Backend {
ctx, cancel := context.WithCancel(context.Background())
gb := GCEBackend{
sm: sm,
config: config,
ctx: ctx,
cancel: cancel,
network: network,
}
return &gb
}
func New(sm subnet.Manager, network string, config *subnet.Config) backend.Backend {
ctx, cancel := context.WithCancel(context.Background())
be := AwsVpcBackend{
sm: sm,
network: network,
config: config,
ctx: ctx,
cancel: cancel,
}
return &be
}
func New(sm subnet.Manager, network string, config *subnet.Config) backend.Backend {
ctx, cancel := context.WithCancel(context.Background())
be := UdpBackend{
sm: sm,
network: network,
config: config,
ctx: ctx,
cancel: cancel,
}
be.cfg.Port = defaultPort
return &be
}
func New(sm subnet.Manager, network string, config *subnet.Config) backend.Backend {
ctx, cancel := context.WithCancel(context.Background())
vb := &VXLANBackend{
sm: sm,
network: network,
config: config,
ctx: ctx,
cancel: cancel,
}
vb.cfg.VNI = defaultVNI
return vb
}
func TestAddReservation(t *testing.T) {
msr := newDummyRegistry()
sm := NewMockManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r := Reservation{
Subnet: newIP4Net("10.4.3.0", 24),
PublicIP: ip.MustParseIP4("52.195.12.13"),
}
if err := sm.AddReservation(ctx, "_", &r); err == nil {
t.Fatalf("unexpectedly added a reservation outside of configured network")
}
r.Subnet = newIP4Net("10.3.10.0", 24)
if err := sm.AddReservation(ctx, "_", &r); err != nil {
t.Fatalf("failed to add reservation: %v", err)
}
// Add the same reservation -- should succeed
if err := sm.AddReservation(ctx, "_", &r); err != nil {
t.Fatalf("failed to add reservation: %v", err)
}
// Add a reservation with a different public IP -- should fail
r2 := r
r2.PublicIP = ip.MustParseIP4("52.195.12.17")
if err := sm.AddReservation(ctx, "_", &r2); err != ErrLeaseTaken {
t.Fatalf("taken add reservation returned: %v", err)
}
attrs := &LeaseAttrs{
PublicIP: r.PublicIP,
}
l, err := sm.AcquireLease(ctx, "_", attrs)
if err != nil {
t.Fatalf("failed to acquire subnet: %v", err)
}
if !l.Subnet.Equal(r.Subnet) {
t.Fatalf("acquired subnet is not the reserved one: expected %v, got %v", r.Subnet, l.Subnet)
}
if !l.Expiration.IsZero() {
t.Fatalf("acquired lease (prev reserved) has expiration set")
}
}
func doTestWatch(t *testing.T, sm subnet.Manager) {
ctx, cancel := context.WithCancel(context.Background())
wg := sync.WaitGroup{}
wg.Add(1)
defer func() {
cancel()
wg.Wait()
}()
events := make(chan []subnet.Event)
go func() {
subnet.WatchLeases(ctx, sm, "_", nil, events)
wg.Done()
}()
// skip over the initial snapshot
<-events
attrs := &subnet.LeaseAttrs{
PublicIP: mustParseIP4("1.1.1.2"),
}
l, err := sm.AcquireLease(ctx, "_", attrs)
if err != nil {
t.Errorf("AcquireLease failed: %v", err)
return
}
if !mustParseIP4Net(expectedNetwork).Contains(l.Subnet.IP) {
t.Errorf("AcquireLease returned subnet not in network: %v (in %v)", l.Subnet, expectedNetwork)
}
evtBatch := <-events
if len(evtBatch) != 1 {
t.Fatalf("WatchSubnets produced wrong sized event batch")
}
evt := evtBatch[0]
if evt.Type != subnet.SubnetAdded {
t.Fatalf("WatchSubnets produced wrong event type")
}
if evt.Lease.Key() != l.Key() {
t.Errorf("WatchSubnet produced wrong subnet: expected %s, got %s", l.Key(), evt.Lease.Key())
}
}
func TestWatchLeaseAdded(t *testing.T) {
msr := newDummyRegistry()
sm := NewMockManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
l := acquireLease(ctx, t, sm)
events := make(chan []Event)
go WatchLeases(ctx, sm, "_", l, events)
evtBatch := <-events
for _, evt := range evtBatch {
if evt.Lease.Key() == l.Key() {
t.Errorf("WatchLeases returned our own lease")
}
}
expected := ip.IP4Net{
IP: ip.MustParseIP4("10.3.6.0"),
PrefixLen: 24,
}
attrs := &LeaseAttrs{
PublicIP: ip.MustParseIP4("1.1.1.1"),
}
msr.createSubnet(ctx, "_", expected, attrs, 0)
evtBatch = <-events
if len(evtBatch) != 1 {
t.Fatalf("WatchLeases produced wrong sized event batch")
}
evt := evtBatch[0]
if evt.Type != EventAdded {
t.Fatalf("WatchLeases produced wrong event type")
}
actual := evt.Lease.Subnet
if !actual.Equal(expected) {
t.Errorf("WatchSubnet produced wrong subnet: expected %s, got %s", expected, actual)
}
}
func newFixture(t *testing.T) *fixture {
f := &fixture{}
config := fmt.Sprintf(`{"Network": %q}`, expectedNetwork)
f.registry = subnet.NewMockRegistry("", config, nil)
sm := subnet.NewMockManager(f.registry)
f.srvAddr = "127.0.0.1:9999"
f.ctx, f.cancel = context.WithCancel(context.Background())
f.wg.Add(1)
go func() {
RunServer(f.ctx, sm, f.srvAddr, "", "", "")
f.wg.Done()
}()
var err error
f.sm, err = NewRemoteManager(f.srvAddr, "", "", "")
if err != nil {
panic(fmt.Sprintf("Failed to create remote mananager: %v", err))
}
for i := 0; ; i++ {
_, err := f.sm.GetNetworkConfig(f.ctx, "_")
if err == nil {
break
}
if isConnRefused(err) {
if i == 100 {
t.Fatalf("Out of connection retries")
}
fmt.Println("Connection refused, retrying...")
time.Sleep(300 * time.Millisecond)
continue
}
t.Fatalf("GetNetworkConfig failed: %v", err)
}
return f
}
func TestRemote(t *testing.T) {
config := fmt.Sprintf(`{"Network": %q}`, expectedNetwork)
sm := subnet.NewMockManager(1, config)
addr := "127.0.0.1:9999"
ctx, cancel := context.WithCancel(context.Background())
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
RunServer(ctx, sm, addr, "", "", "")
wg.Done()
}()
doTestRemote(ctx, t, addr)
cancel()
wg.Wait()
}
func TestWatchNetworkRemoved(t *testing.T) {
msr := newDummyRegistry(0)
sm := newEtcdManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
events := make(chan []Event)
go WatchNetworks(ctx, sm, events)
// skip over the initial snapshot
<-events
expected := "blah"
msr.CreateNetwork(ctx, expected, `{"Network": "10.1.1.0/16", "Backend": {"Type": "bridge"}}`)
// skip over the create event
<-events
_, err := msr.DeleteNetwork(ctx, expected)
if err != nil {
t.Fatalf("WatchNetworks failed to delete the network")
}
evtBatch := <-events
if len(evtBatch) != 1 {
t.Fatalf("WatchNetworks produced wrong sized event batch")
}
evt := evtBatch[0]
if evt.Type != EventRemoved {
t.Fatalf("WatchNetworks produced wrong event type")
}
actual := evt.Network
if actual != expected {
t.Errorf("WatchNetwork produced wrong network: expected %s, got %s", expected, actual)
}
}
func TestLeaseRevoked(t *testing.T) {
msr := newDummyRegistry()
sm := NewMockManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
l := acquireLease(ctx, t, sm)
if err := sm.RevokeLease(ctx, "_", l.Subnet); err != nil {
t.Fatalf("RevokeLease failed: %v", err)
}
_, _, err := msr.getSubnet(ctx, "_", l.Subnet)
if err == nil {
t.Fatalf("Revoked lease still exists")
}
if etcdErr, ok := err.(etcd.Error); ok && etcdErr.Code != etcd.ErrorCodeKeyNotFound {
t.Fatalf("getSubnets after revoked lease returned unexpected error: %v", err)
}
}
func TestSimpleHTTPClientDoCancelContextResponseBodyClosedWithBlockingBody(t *testing.T) {
tr := newFakeTransport()
c := &simpleHTTPClient{transport: tr}
ctx, cancel := context.WithCancel(context.Background())
body := &checkableReadCloser{ReadCloser: &blockingBody{c: make(chan struct{})}}
go func() {
tr.respchan <- &http.Response{Body: body}
time.Sleep(2 * time.Millisecond)
// cancel after the body is received
cancel()
}()
_, _, err := c.Do(ctx, &fakeAction{})
if err == nil {
t.Fatalf("expected non-nil error, got nil")
}
if !body.closed {
t.Fatalf("expected closed body")
}
}
func TestWatchLeaseAdded(t *testing.T) {
msr := newDummyRegistry(0)
sm := newEtcdManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
l := acquireLease(ctx, t, sm)
events := make(chan []Event)
go WatchLeases(ctx, sm, "_", l, events)
evtBatch := <-events
for _, evt := range evtBatch {
if evt.Lease.Key() == l.Key() {
t.Errorf("WatchLeases returned our own lease")
}
}
expected := "10.3.6.0-24"
msr.createSubnet(ctx, "_", expected, `{"PublicIP": "1.1.1.1"}`, 0)
evtBatch = <-events
if len(evtBatch) != 1 {
t.Fatalf("WatchLeases produced wrong sized event batch")
}
evt := evtBatch[0]
if evt.Type != EventAdded {
t.Fatalf("WatchLeases produced wrong event type")
}
actual := evt.Lease.Key()
if actual != expected {
t.Errorf("WatchSubnet produced wrong subnet: expected %s, got %s", expected, actual)
}
}
func TestHTTPClusterClientAutoSyncCancelContext(t *testing.T) {
cf := newStaticHTTPClientFactory([]staticHTTPResponse{
{
resp: http.Response{StatusCode: http.StatusOK, Header: http.Header{"Content-Type": []string{"application/json"}}},
body: []byte(`{"members":[{"id":"2745e2525fce8fe","peerURLs":["http://127.0.0.1:7003"],"name":"node3","clientURLs":["http://127.0.0.1:4003"]},{"id":"42134f434382925","peerURLs":["http://127.0.0.1:2380","http://127.0.0.1:7001"],"name":"node1","clientURLs":["http://127.0.0.1:2379","http://127.0.0.1:4001"]},{"id":"94088180e21eb87b","peerURLs":["http://127.0.0.1:7002"],"name":"node2","clientURLs":["http://127.0.0.1:4002"]}]}`),
},
})
hc := &httpClusterClient{
clientFactory: cf,
rand: rand.New(rand.NewSource(0)),
}
err := hc.reset([]string{"http://127.0.0.1:2379"})
if err != nil {
t.Fatalf("unexpected error during setup: %#v", err)
}
ctx, cancel := context.WithCancel(context.Background())
cancel()
err = hc.AutoSync(ctx, time.Hour)
if err != context.Canceled {
t.Fatalf("incorrect error value: want=%v got=%v", context.Canceled, err)
}
}
func TestListReservations(t *testing.T) {
msr := newDummyRegistry()
sm := NewMockManager(msr)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
r1 := Reservation{
Subnet: newIP4Net("10.3.10.0", 24),
PublicIP: ip.MustParseIP4("52.195.12.13"),
}
if err := sm.AddReservation(ctx, "_", &r1); err != nil {
t.Fatalf("failed to add reservation: %v", err)
}
r2 := Reservation{
Subnet: newIP4Net("10.3.20.0", 24),
PublicIP: ip.MustParseIP4("52.195.12.14"),
}
if err := sm.AddReservation(ctx, "_", &r2); err != nil {
t.Fatalf("failed to add reservation: %v", err)
}
rs, err := sm.ListReservations(ctx, "_")
if err != nil {
if len(rs) != 2 {
t.Fatalf("unexpected number of reservations, expected 2, got %v", len(rs))
}
if !resvEqual(rs[0], r1) && !resvEqual(rs[1], r1) {
t.Fatalf("reservation not found")
}
if !resvEqual(rs[0], r2) && !resvEqual(rs[1], r2) {
t.Fatalf("reservation not found")
}
}
}
func main() {
// glog will log to tmp files by default. override so all entries
// can flow into journald (if running under systemd)
flag.Set("logtostderr", "true")
// now parse command line args
flag.Parse()
if flag.NArg() > 0 || opts.help {
fmt.Fprintf(os.Stderr, "Usage: %s [OPTION]...\n", os.Args[0])
flag.PrintDefaults()
os.Exit(0)
}
if opts.version {
fmt.Fprintln(os.Stderr, Version)
os.Exit(0)
}
flagsFromEnv("FLANNELD", flag.CommandLine)
sm, err := newSubnetManager()
if err != nil {
log.Error("Failed to create SubnetManager: ", err)
os.Exit(1)
}
var runFunc func(ctx context.Context)
if opts.listen != "" {
if opts.remote != "" {
log.Error("--listen and --remote are mutually exclusive")
os.Exit(1)
}
log.Info("running as server")
runFunc = func(ctx context.Context) {
remote.RunServer(ctx, sm, opts.listen, opts.remoteCAFile, opts.remoteCertfile, opts.remoteKeyfile)
}
} else {
networks := strings.Split(opts.networks, ",")
if len(networks) == 0 {
networks = append(networks, "")
}
runFunc = func(ctx context.Context) {
initAndRun(ctx, sm, networks)
}
}
// Register for SIGINT and SIGTERM
log.Info("Installing signal handlers")
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, os.Interrupt, syscall.SIGTERM)
ctx, cancel := context.WithCancel(context.Background())
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
runFunc(ctx)
wg.Done()
}()
<-sigs
// unregister to get default OS nuke behaviour in case we don't exit cleanly
signal.Stop(sigs)
log.Info("Exiting...")
cancel()
wg.Wait()
}
func (n *Network) runOnce(extIface *backend.ExternalInterface, inited func(bn backend.Network)) error {
if err := n.retryInit(); err != nil {
return errCanceled
}
inited(n.bn)
ctx, interruptFunc := context.WithCancel(n.ctx)
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
n.bn.Run(ctx)
wg.Done()
}()
evts := make(chan subnet.Event)
wg.Add(1)
go func() {
subnet.WatchLease(ctx, n.sm, n.Name, n.bn.Lease().Subnet, evts)
wg.Done()
}()
defer func() {
if n.ipMasq {
if err := teardownIPMasq(n.Config.Network); err != nil {
log.Errorf("Failed to tear down IP Masquerade for network %v: %v", n.Name, err)
}
}
}()
defer wg.Wait()
dur := n.bn.Lease().Expiration.Sub(time.Now()) - renewMargin
for {
select {
case <-time.After(dur):
err := n.sm.RenewLease(n.ctx, n.Name, n.bn.Lease())
if err != nil {
log.Error("Error renewing lease (trying again in 1 min): ", err)
dur = time.Minute
continue
}
log.Info("Lease renewed, new expiration: ", n.bn.Lease().Expiration)
dur = n.bn.Lease().Expiration.Sub(time.Now()) - renewMargin
case e := <-evts:
switch e.Type {
case subnet.EventAdded:
n.bn.Lease().Expiration = e.Lease.Expiration
dur = n.bn.Lease().Expiration.Sub(time.Now()) - renewMargin
case subnet.EventRemoved:
log.Warning("Lease has been revoked")
interruptFunc()
return errInterrupted
}
case <-n.ctx.Done():
return errCanceled
}
}
}
func TestMockEtcd(t *testing.T) {
m := newMockEtcd()
ctx, _ := context.WithCancel(context.Background())
// Sanity tests for our mock etcd
// Ensure no entries yet exist
opts := &etcd.GetOptions{Recursive: true}
r, err := m.Get(ctx, "/", opts)
e := &etcd.Response{Action: "get", Index: 1000, Node: m.nodes["/"]}
expectSuccess(t, r, err, e, "")
// Create base test keys
sopts := &etcd.SetOptions{Dir: true}
r, err = m.Set(ctx, "/coreos.com/network", "", sopts)
e = &etcd.Response{Action: "create", Index: 1002}
expectSuccess(t, r, err, e, "")
wopts := &etcd.WatcherOptions{AfterIndex: m.index, Recursive: true}
watcher := m.Watcher("/coreos.com/network", wopts)
result := make(chan error, 1)
go watchMockEtcd(ctx, watcher, result)
// Populate etcd with some keys
netKey1 := "/coreos.com/network/foobar/config"
netValue := "{ \"Network\": \"10.1.0.0/16\", \"Backend\": { \"Type\": \"host-gw\" } }"
r, err = m.Create(ctx, netKey1, netValue)
e = &etcd.Response{Action: "create", Index: 1004}
expectSuccess(t, r, err, e, netValue)
netKey2 := "/coreos.com/network/blah/config"
netValue = "{ \"Network\": \"10.1.1.0/16\", \"Backend\": { \"Type\": \"host-gw\" } }"
r, err = m.Create(ctx, netKey2, netValue)
e = &etcd.Response{Action: "create", Index: 1006}
expectSuccess(t, r, err, e, netValue)
// Get it again
expectedNode := r.Node
opts = &etcd.GetOptions{Recursive: false}
r, err = m.Get(ctx, netKey2, opts)
e = &etcd.Response{Action: "get", Index: m.index, Node: expectedNode}
expectSuccess(t, r, err, e, netValue)
// Update it
netValue = "ReallyCoolValue"
r, err = m.Update(ctx, netKey2, netValue)
e = &etcd.Response{Action: "update", Index: m.index}
expectSuccess(t, r, err, e, netValue)
// Get it again
opts = &etcd.GetOptions{Recursive: false}
r, err = m.Get(ctx, netKey2, opts)
e = &etcd.Response{Action: "get", Index: m.index}
expectSuccess(t, r, err, e, netValue)
// test directory listing
opts = &etcd.GetOptions{Recursive: true}
r, err = m.Get(ctx, "/coreos.com/network/", opts)
e = &etcd.Response{Action: "get", Index: 1007}
expectSuccess(t, r, err, e, "")
if len(r.Node.Nodes) != 2 {
t.Fatalf("Unexpected %d children in response (expected 2)", len(r.Node.Nodes))
}
node1Found := false
node2Found := false
for _, child := range r.Node.Nodes {
if child.Dir != true {
t.Fatalf("Unexpected non-directory child %s", child.Key)
}
if child.Key == "/coreos.com/network/foobar" {
node1Found = true
} else if child.Key == "/coreos.com/network/blah" {
node2Found = true
} else {
t.Fatalf("Unexpected child %s found", child.Key)
}
if len(child.Nodes) != 1 {
t.Fatalf("Unexpected %d children in response (expected 2)", len(r.Node.Nodes))
}
}
if node1Found == false || node2Found == false {
t.Fatalf("Failed to find expected children")
}
// Delete a key
dopts := &etcd.DeleteOptions{Recursive: true, Dir: false}
r, err = m.Delete(ctx, "/coreos.com/network/foobar", dopts)
if err == nil {
t.Fatalf("Unexpected success deleting a directory")
}
// Delete a key
dopts = &etcd.DeleteOptions{Recursive: true, Dir: true}
r, err = m.Delete(ctx, "/coreos.com/network/foobar", dopts)
e = &etcd.Response{Action: "delete", Index: 1010}
expectSuccess(t, r, err, e, "")
// Get it again; should fail
opts = &etcd.GetOptions{Recursive: false}
r, err = m.Get(ctx, netKey1, opts)
if err == nil {
t.Fatalf("Get of %s after delete unexpectedly succeeded", netKey1)
}
if r != nil {
t.Fatalf("Unexpected non-nil response to get after delete %v", r)
}
// Check errors from watch goroutine
watchResult := <-result
if watchResult != nil {
t.Fatalf("Error watching keys: %v", watchResult)
}
}
