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moby--moby/libnetwork/drivers/remote/driver_test.go
2015-06-03 16:51:56 -07:00

436 lines
11 KiB
Go

package remote
import (
"encoding/json"
"fmt"
"net"
"net/http"
"os"
"testing"
"github.com/docker/docker/pkg/plugins"
"github.com/docker/libnetwork/driverapi"
_ "github.com/docker/libnetwork/netutils"
"github.com/docker/libnetwork/types"
)
func decodeToMap(r *http.Request) (res map[string]interface{}, err error) {
err = json.NewDecoder(r.Body).Decode(&res)
return
}
func handle(t *testing.T, mux *http.ServeMux, method string, h func(map[string]interface{}) interface{}) {
mux.HandleFunc(fmt.Sprintf("/%s.%s", driverapi.NetworkPluginEndpointType, method), func(w http.ResponseWriter, r *http.Request) {
ask, err := decodeToMap(r)
if err != nil {
t.Fatal(err)
}
answer := h(ask)
err = json.NewEncoder(w).Encode(&answer)
if err != nil {
t.Fatal(err)
}
})
}
func setupPlugin(t *testing.T, name string, mux *http.ServeMux) func() {
if err := os.MkdirAll("/usr/share/docker/plugins", 0755); err != nil {
t.Fatal(err)
}
listener, err := net.Listen("unix", fmt.Sprintf("/usr/share/docker/plugins/%s.sock", name))
if err != nil {
t.Fatal("Could not listen to the plugin socket")
}
mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, `{"Implements": ["%s"]}`, driverapi.NetworkPluginEndpointType)
})
go http.Serve(listener, mux)
return func() {
listener.Close()
if err := os.RemoveAll("/usr/share/docker/plugins"); err != nil {
t.Fatal(err)
}
}
}
type testEndpoint struct {
t *testing.T
id int
src string
dst string
address string
addressIPv6 string
macAddress string
gateway string
gatewayIPv6 string
resolvConfPath string
hostsPath string
nextHop string
destination string
routeType int
}
func (test *testEndpoint) Interfaces() []driverapi.InterfaceInfo {
// return an empty one so we don't trip the check for existing
// interfaces; we don't care about this after that
return []driverapi.InterfaceInfo{}
}
func (test *testEndpoint) AddInterface(ID int, mac net.HardwareAddr, ipv4 net.IPNet, ipv6 net.IPNet) error {
if ID != test.id {
test.t.Fatalf("Wrong ID passed to AddInterface: %d", ID)
}
ip4, net4, _ := net.ParseCIDR(test.address)
ip6, net6, _ := net.ParseCIDR(test.addressIPv6)
if ip4 != nil {
net4.IP = ip4
if !types.CompareIPNet(net4, &ipv4) {
test.t.Fatalf("Wrong address given %+v", ipv4)
}
}
if ip6 != nil {
net6.IP = ip6
if !types.CompareIPNet(net6, &ipv6) {
test.t.Fatalf("Wrong address (IPv6) given %+v", ipv6)
}
}
if test.macAddress != "" && mac.String() != test.macAddress {
test.t.Fatalf("Wrong MAC address given %v", mac)
}
return nil
}
func (test *testEndpoint) InterfaceNames() []driverapi.InterfaceNameInfo {
return []driverapi.InterfaceNameInfo{test}
}
func compareIPs(t *testing.T, kind string, shouldBe string, supplied net.IP) {
ip := net.ParseIP(shouldBe)
if ip == nil {
t.Fatalf(`Invalid IP to test against: "%s"`, shouldBe)
}
if !ip.Equal(supplied) {
t.Fatalf(`%s IPs are not equal: expected "%s", got %v`, kind, shouldBe, supplied)
}
}
func compareIPNets(t *testing.T, kind string, shouldBe string, supplied net.IPNet) {
_, net, _ := net.ParseCIDR(shouldBe)
if net == nil {
t.Fatalf(`Invalid IP network to test against: "%s"`, shouldBe)
}
if !types.CompareIPNet(net, &supplied) {
t.Fatalf(`%s IP networks are not equal: expected "%s", got %v`, kind, shouldBe, supplied)
}
}
func (test *testEndpoint) SetGateway(ipv4 net.IP) error {
compareIPs(test.t, "Gateway", test.gateway, ipv4)
return nil
}
func (test *testEndpoint) SetGatewayIPv6(ipv6 net.IP) error {
compareIPs(test.t, "GatewayIPv6", test.gatewayIPv6, ipv6)
return nil
}
func (test *testEndpoint) SetHostsPath(p string) error {
if p != test.hostsPath {
test.t.Fatalf(`Wrong HostsPath; expected "%s", got "%s"`, test.hostsPath, p)
}
return nil
}
func (test *testEndpoint) SetResolvConfPath(p string) error {
if p != test.resolvConfPath {
test.t.Fatalf(`Wrong ResolvConfPath; expected "%s", got "%s"`, test.resolvConfPath, p)
}
return nil
}
func (test *testEndpoint) SetNames(src string, dst string) error {
if test.src != src {
test.t.Fatalf(`Wrong SrcName; expected "%s", got "%s"`, test.src, src)
}
if test.dst != dst {
test.t.Fatalf(`Wrong DstPrefix; expected "%s", got "%s"`, test.dst, dst)
}
return nil
}
func (test *testEndpoint) AddStaticRoute(destination *net.IPNet, routeType int, nextHop net.IP, interfaceID int) error {
compareIPNets(test.t, "Destination", test.destination, *destination)
compareIPs(test.t, "NextHop", test.nextHop, nextHop)
if test.routeType != routeType {
test.t.Fatalf(`Wrong RouteType; expected "%d", got "%d"`, test.routeType, routeType)
}
if test.id != interfaceID {
test.t.Fatalf(`Wrong InterfaceID; expected "%d", got "%d"`, test.id, interfaceID)
}
return nil
}
func (test *testEndpoint) ID() int {
return test.id
}
func TestRemoteDriver(t *testing.T) {
var plugin = "test-net-driver"
ep := &testEndpoint{
t: t,
src: "vethsrc",
dst: "vethdst",
address: "192.168.5.7/16",
addressIPv6: "2001:DB8::5:7/48",
macAddress: "7a:56:78:34:12:da",
gateway: "192.168.0.1",
gatewayIPv6: "2001:DB8::1",
hostsPath: "/here/comes/the/host/path",
resolvConfPath: "/there/goes/the/resolv/conf",
destination: "10.0.0.0/8",
nextHop: "10.0.0.1",
routeType: 1,
}
mux := http.NewServeMux()
defer setupPlugin(t, plugin, mux)()
var networkID string
handle(t, mux, "CreateNetwork", func(msg map[string]interface{}) interface{} {
nid := msg["NetworkID"]
var ok bool
if networkID, ok = nid.(string); !ok {
t.Fatal("RPC did not include network ID string")
}
return map[string]interface{}{}
})
handle(t, mux, "DeleteNetwork", func(msg map[string]interface{}) interface{} {
if nid, ok := msg["NetworkID"]; !ok || nid != networkID {
t.Fatal("Network ID missing or does not match that created")
}
return map[string]interface{}{}
})
handle(t, mux, "CreateEndpoint", func(msg map[string]interface{}) interface{} {
iface := map[string]interface{}{
"ID": ep.id,
"Address": ep.address,
"AddressIPv6": ep.addressIPv6,
"MacAddress": ep.macAddress,
}
return map[string]interface{}{
"Interfaces": []interface{}{iface},
}
})
handle(t, mux, "Join", func(msg map[string]interface{}) interface{} {
options := msg["Options"].(map[string]interface{})
foo, ok := options["foo"].(string)
if !ok || foo != "fooValue" {
t.Fatalf("Did not receive expected foo string in request options: %+v", msg)
}
return map[string]interface{}{
"Gateway": ep.gateway,
"GatewayIPv6": ep.gatewayIPv6,
"HostsPath": ep.hostsPath,
"ResolvConfPath": ep.resolvConfPath,
"InterfaceNames": []map[string]interface{}{
map[string]interface{}{
"SrcName": ep.src,
"DstPrefix": ep.dst,
},
},
"StaticRoutes": []map[string]interface{}{
map[string]interface{}{
"Destination": ep.destination,
"RouteType": ep.routeType,
"InterfaceID": ep.id,
"NextHop": ep.nextHop,
},
},
}
})
handle(t, mux, "Leave", func(msg map[string]interface{}) interface{} {
return map[string]string{}
})
handle(t, mux, "DeleteEndpoint", func(msg map[string]interface{}) interface{} {
return map[string]interface{}{}
})
handle(t, mux, "EndpointOperInfo", func(msg map[string]interface{}) interface{} {
return map[string]interface{}{
"Value": map[string]string{
"Arbitrary": "key",
"Value": "pairs?",
},
}
})
p, err := plugins.Get(plugin, driverapi.NetworkPluginEndpointType)
if err != nil {
t.Fatal(err)
}
driver := newDriver(plugin, p.Client)
if driver.Type() != plugin {
t.Fatal("Driver type does not match that given")
}
netID := types.UUID("dummy-network")
err = driver.CreateNetwork(netID, map[string]interface{}{})
if err != nil {
t.Fatal(err)
}
endID := types.UUID("dummy-endpoint")
err = driver.CreateEndpoint(netID, endID, ep, map[string]interface{}{})
if err != nil {
t.Fatal(err)
}
joinOpts := map[string]interface{}{"foo": "fooValue"}
err = driver.Join(netID, endID, "sandbox-key", ep, joinOpts)
if err != nil {
t.Fatal(err)
}
if _, err = driver.EndpointOperInfo(netID, endID); err != nil {
t.Fatal(err)
}
if err = driver.Leave(netID, endID); err != nil {
t.Fatal(err)
}
if err = driver.DeleteEndpoint(netID, endID); err != nil {
t.Fatal(err)
}
if err = driver.DeleteNetwork(netID); err != nil {
t.Fatal(err)
}
}
type failEndpoint struct {
t *testing.T
}
func (f *failEndpoint) Interfaces() []*driverapi.InterfaceInfo {
f.t.Fatal("Unexpected call of Interfaces")
return nil
}
func (f *failEndpoint) AddInterface(int, net.HardwareAddr, net.IPNet, net.IPNet) error {
f.t.Fatal("Unexpected call of AddInterface")
return nil
}
func TestDriverError(t *testing.T) {
var plugin = "test-net-driver-error"
mux := http.NewServeMux()
defer setupPlugin(t, plugin, mux)()
handle(t, mux, "CreateEndpoint", func(msg map[string]interface{}) interface{} {
return map[string]interface{}{
"Err": "this should get raised as an error",
}
})
p, err := plugins.Get(plugin, driverapi.NetworkPluginEndpointType)
if err != nil {
t.Fatal(err)
}
driver := newDriver(plugin, p.Client)
if err := driver.CreateEndpoint(types.UUID("dummy"), types.UUID("dummy"), &testEndpoint{t: t}, map[string]interface{}{}); err == nil {
t.Fatalf("Expected error from driver")
}
}
func TestMissingValues(t *testing.T) {
var plugin = "test-net-driver-missing"
mux := http.NewServeMux()
defer setupPlugin(t, plugin, mux)()
ep := &testEndpoint{
t: t,
id: 0,
}
handle(t, mux, "CreateEndpoint", func(msg map[string]interface{}) interface{} {
iface := map[string]interface{}{
"ID": ep.id,
"Address": ep.address,
"AddressIPv6": ep.addressIPv6,
"MacAddress": ep.macAddress,
}
return map[string]interface{}{
"Interfaces": []interface{}{iface},
}
})
p, err := plugins.Get(plugin, driverapi.NetworkPluginEndpointType)
if err != nil {
t.Fatal(err)
}
driver := newDriver(plugin, p.Client)
if err := driver.CreateEndpoint(types.UUID("dummy"), types.UUID("dummy"), ep, map[string]interface{}{}); err != nil {
t.Fatal(err)
}
}
type rollbackEndpoint struct {
}
func (r *rollbackEndpoint) Interfaces() []driverapi.InterfaceInfo {
return []driverapi.InterfaceInfo{}
}
func (r *rollbackEndpoint) AddInterface(_ int, _ net.HardwareAddr, _ net.IPNet, _ net.IPNet) error {
return fmt.Errorf("fail this to trigger a rollback")
}
func TestRollback(t *testing.T) {
var plugin = "test-net-driver-rollback"
mux := http.NewServeMux()
defer setupPlugin(t, plugin, mux)()
rolledback := false
handle(t, mux, "CreateEndpoint", func(msg map[string]interface{}) interface{} {
iface := map[string]interface{}{
"ID": 0,
"Address": "192.168.4.5/16",
"AddressIPv6": "",
"MacAddress": "7a:12:34:56:78:90",
}
return map[string]interface{}{
"Interfaces": []interface{}{iface},
}
})
handle(t, mux, "DeleteEndpoint", func(msg map[string]interface{}) interface{} {
rolledback = true
return map[string]interface{}{}
})
p, err := plugins.Get(plugin, driverapi.NetworkPluginEndpointType)
if err != nil {
t.Fatal(err)
}
driver := newDriver(plugin, p.Client)
ep := &rollbackEndpoint{}
if err := driver.CreateEndpoint(types.UUID("dummy"), types.UUID("dummy"), ep, map[string]interface{}{}); err == nil {
t.Fatalf("Expected error from driver")
}
if !rolledback {
t.Fatalf("Expected to have had DeleteEndpoint called")
}
}