github.com/hustcat/docker@v1.3.3-0.20160314103604-901c67a8eeab/integration-cli/docker_cli_network_unix_test.go (about) 1 // +build !windows 2 3 package main 4 5 import ( 6 "encoding/json" 7 "fmt" 8 "io/ioutil" 9 "net" 10 "net/http" 11 "net/http/httptest" 12 "os" 13 "strings" 14 "time" 15 16 "github.com/docker/docker/pkg/integration/checker" 17 "github.com/docker/docker/runconfig" 18 "github.com/docker/engine-api/types" 19 "github.com/docker/engine-api/types/versions/v1p20" 20 "github.com/docker/libnetwork/driverapi" 21 remoteapi "github.com/docker/libnetwork/drivers/remote/api" 22 "github.com/docker/libnetwork/ipamapi" 23 remoteipam "github.com/docker/libnetwork/ipams/remote/api" 24 "github.com/docker/libnetwork/netlabel" 25 "github.com/go-check/check" 26 "github.com/vishvananda/netlink" 27 ) 28 29 const dummyNetworkDriver = "dummy-network-driver" 30 const dummyIpamDriver = "dummy-ipam-driver" 31 32 var remoteDriverNetworkRequest remoteapi.CreateNetworkRequest 33 34 func init() { 35 check.Suite(&DockerNetworkSuite{ 36 ds: &DockerSuite{}, 37 }) 38 } 39 40 type DockerNetworkSuite struct { 41 server *httptest.Server 42 ds *DockerSuite 43 d *Daemon 44 } 45 46 func (s *DockerNetworkSuite) SetUpTest(c *check.C) { 47 s.d = NewDaemon(c) 48 } 49 50 func (s *DockerNetworkSuite) TearDownTest(c *check.C) { 51 s.d.Stop() 52 s.ds.TearDownTest(c) 53 } 54 55 func (s *DockerNetworkSuite) SetUpSuite(c *check.C) { 56 mux := http.NewServeMux() 57 s.server = httptest.NewServer(mux) 58 c.Assert(s.server, check.NotNil, check.Commentf("Failed to start a HTTP Server")) 59 setupRemoteNetworkDrivers(c, mux, s.server.URL, dummyNetworkDriver, dummyIpamDriver) 60 } 61 62 func setupRemoteNetworkDrivers(c *check.C, mux *http.ServeMux, url, netDrv, ipamDrv string) { 63 64 mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) { 65 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 66 fmt.Fprintf(w, `{"Implements": ["%s", "%s"]}`, driverapi.NetworkPluginEndpointType, ipamapi.PluginEndpointType) 67 }) 68 69 // Network driver implementation 70 mux.HandleFunc(fmt.Sprintf("/%s.GetCapabilities", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 71 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 72 fmt.Fprintf(w, `{"Scope":"local"}`) 73 }) 74 75 mux.HandleFunc(fmt.Sprintf("/%s.CreateNetwork", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 76 err := json.NewDecoder(r.Body).Decode(&remoteDriverNetworkRequest) 77 if err != nil { 78 http.Error(w, "Unable to decode JSON payload: "+err.Error(), http.StatusBadRequest) 79 return 80 } 81 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 82 fmt.Fprintf(w, "null") 83 }) 84 85 mux.HandleFunc(fmt.Sprintf("/%s.DeleteNetwork", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 86 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 87 fmt.Fprintf(w, "null") 88 }) 89 90 mux.HandleFunc(fmt.Sprintf("/%s.CreateEndpoint", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 91 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 92 fmt.Fprintf(w, `{"Interface":{"MacAddress":"a0:b1:c2:d3:e4:f5"}}`) 93 }) 94 95 mux.HandleFunc(fmt.Sprintf("/%s.Join", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 96 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 97 98 veth := &netlink.Veth{ 99 LinkAttrs: netlink.LinkAttrs{Name: "randomIfName", TxQLen: 0}, PeerName: "cnt0"} 100 if err := netlink.LinkAdd(veth); err != nil { 101 fmt.Fprintf(w, `{"Error":"failed to add veth pair: `+err.Error()+`"}`) 102 } else { 103 fmt.Fprintf(w, `{"InterfaceName":{ "SrcName":"cnt0", "DstPrefix":"veth"}}`) 104 } 105 }) 106 107 mux.HandleFunc(fmt.Sprintf("/%s.Leave", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 108 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 109 fmt.Fprintf(w, "null") 110 }) 111 112 mux.HandleFunc(fmt.Sprintf("/%s.DeleteEndpoint", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 113 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 114 if link, err := netlink.LinkByName("cnt0"); err == nil { 115 netlink.LinkDel(link) 116 } 117 fmt.Fprintf(w, "null") 118 }) 119 120 // Ipam Driver implementation 121 var ( 122 poolRequest remoteipam.RequestPoolRequest 123 poolReleaseReq remoteipam.ReleasePoolRequest 124 addressRequest remoteipam.RequestAddressRequest 125 addressReleaseReq remoteipam.ReleaseAddressRequest 126 lAS = "localAS" 127 gAS = "globalAS" 128 pool = "172.28.0.0/16" 129 poolID = lAS + "/" + pool 130 gw = "172.28.255.254/16" 131 ) 132 133 mux.HandleFunc(fmt.Sprintf("/%s.GetDefaultAddressSpaces", ipamapi.PluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 134 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 135 fmt.Fprintf(w, `{"LocalDefaultAddressSpace":"`+lAS+`", "GlobalDefaultAddressSpace": "`+gAS+`"}`) 136 }) 137 138 mux.HandleFunc(fmt.Sprintf("/%s.RequestPool", ipamapi.PluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 139 err := json.NewDecoder(r.Body).Decode(&poolRequest) 140 if err != nil { 141 http.Error(w, "Unable to decode JSON payload: "+err.Error(), http.StatusBadRequest) 142 return 143 } 144 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 145 if poolRequest.AddressSpace != lAS && poolRequest.AddressSpace != gAS { 146 fmt.Fprintf(w, `{"Error":"Unknown address space in pool request: `+poolRequest.AddressSpace+`"}`) 147 } else if poolRequest.Pool != "" && poolRequest.Pool != pool { 148 fmt.Fprintf(w, `{"Error":"Cannot handle explicit pool requests yet"}`) 149 } else { 150 fmt.Fprintf(w, `{"PoolID":"`+poolID+`", "Pool":"`+pool+`"}`) 151 } 152 }) 153 154 mux.HandleFunc(fmt.Sprintf("/%s.RequestAddress", ipamapi.PluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 155 err := json.NewDecoder(r.Body).Decode(&addressRequest) 156 if err != nil { 157 http.Error(w, "Unable to decode JSON payload: "+err.Error(), http.StatusBadRequest) 158 return 159 } 160 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 161 // make sure libnetwork is now querying on the expected pool id 162 if addressRequest.PoolID != poolID { 163 fmt.Fprintf(w, `{"Error":"unknown pool id"}`) 164 } else if addressRequest.Address != "" { 165 fmt.Fprintf(w, `{"Error":"Cannot handle explicit address requests yet"}`) 166 } else { 167 fmt.Fprintf(w, `{"Address":"`+gw+`"}`) 168 } 169 }) 170 171 mux.HandleFunc(fmt.Sprintf("/%s.ReleaseAddress", ipamapi.PluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 172 err := json.NewDecoder(r.Body).Decode(&addressReleaseReq) 173 if err != nil { 174 http.Error(w, "Unable to decode JSON payload: "+err.Error(), http.StatusBadRequest) 175 return 176 } 177 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 178 // make sure libnetwork is now asking to release the expected address from the expected poolid 179 if addressRequest.PoolID != poolID { 180 fmt.Fprintf(w, `{"Error":"unknown pool id"}`) 181 } else if addressReleaseReq.Address != gw { 182 fmt.Fprintf(w, `{"Error":"unknown address"}`) 183 } else { 184 fmt.Fprintf(w, "null") 185 } 186 }) 187 188 mux.HandleFunc(fmt.Sprintf("/%s.ReleasePool", ipamapi.PluginEndpointType), func(w http.ResponseWriter, r *http.Request) { 189 err := json.NewDecoder(r.Body).Decode(&poolReleaseReq) 190 if err != nil { 191 http.Error(w, "Unable to decode JSON payload: "+err.Error(), http.StatusBadRequest) 192 return 193 } 194 w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json") 195 // make sure libnetwork is now asking to release the expected poolid 196 if addressRequest.PoolID != poolID { 197 fmt.Fprintf(w, `{"Error":"unknown pool id"}`) 198 } else { 199 fmt.Fprintf(w, "null") 200 } 201 }) 202 203 err := os.MkdirAll("/etc/docker/plugins", 0755) 204 c.Assert(err, checker.IsNil) 205 206 fileName := fmt.Sprintf("/etc/docker/plugins/%s.spec", netDrv) 207 err = ioutil.WriteFile(fileName, []byte(url), 0644) 208 c.Assert(err, checker.IsNil) 209 210 ipamFileName := fmt.Sprintf("/etc/docker/plugins/%s.spec", ipamDrv) 211 err = ioutil.WriteFile(ipamFileName, []byte(url), 0644) 212 c.Assert(err, checker.IsNil) 213 } 214 215 func (s *DockerNetworkSuite) TearDownSuite(c *check.C) { 216 if s.server == nil { 217 return 218 } 219 220 s.server.Close() 221 222 err := os.RemoveAll("/etc/docker/plugins") 223 c.Assert(err, checker.IsNil) 224 } 225 226 func assertNwIsAvailable(c *check.C, name string) { 227 if !isNwPresent(c, name) { 228 c.Fatalf("Network %s not found in network ls o/p", name) 229 } 230 } 231 232 func assertNwNotAvailable(c *check.C, name string) { 233 if isNwPresent(c, name) { 234 c.Fatalf("Found network %s in network ls o/p", name) 235 } 236 } 237 238 func isNwPresent(c *check.C, name string) bool { 239 out, _ := dockerCmd(c, "network", "ls") 240 lines := strings.Split(out, "\n") 241 for i := 1; i < len(lines)-1; i++ { 242 netFields := strings.Fields(lines[i]) 243 if netFields[1] == name { 244 return true 245 } 246 } 247 return false 248 } 249 250 // assertNwList checks network list retrieved with ls command 251 // equals to expected network list 252 // note: out should be `network ls [option]` result 253 func assertNwList(c *check.C, out string, expectNws []string) { 254 lines := strings.Split(out, "\n") 255 var nwList []string 256 for _, line := range lines[1 : len(lines)-1] { 257 netFields := strings.Fields(line) 258 // wrap all network name in nwList 259 nwList = append(nwList, netFields[1]) 260 } 261 262 // network ls should contains all expected networks 263 c.Assert(nwList, checker.DeepEquals, expectNws) 264 } 265 266 func getNwResource(c *check.C, name string) *types.NetworkResource { 267 out, _ := dockerCmd(c, "network", "inspect", name) 268 nr := []types.NetworkResource{} 269 err := json.Unmarshal([]byte(out), &nr) 270 c.Assert(err, check.IsNil) 271 return &nr[0] 272 } 273 274 func (s *DockerNetworkSuite) TestDockerNetworkLsDefault(c *check.C) { 275 defaults := []string{"bridge", "host", "none"} 276 for _, nn := range defaults { 277 assertNwIsAvailable(c, nn) 278 } 279 } 280 281 func (s *DockerNetworkSuite) TestDockerNetworkCreatePredefined(c *check.C) { 282 predefined := []string{"bridge", "host", "none", "default"} 283 for _, net := range predefined { 284 // predefined networks can't be created again 285 out, _, err := dockerCmdWithError("network", "create", net) 286 c.Assert(err, checker.NotNil, check.Commentf("%v", out)) 287 } 288 } 289 290 func (s *DockerNetworkSuite) TestDockerNetworkCreateHostBind(c *check.C) { 291 dockerCmd(c, "network", "create", "--subnet=192.168.10.0/24", "--gateway=192.168.10.1", "-o", "com.docker.network.bridge.host_binding_ipv4=192.168.10.1", "testbind") 292 assertNwIsAvailable(c, "testbind") 293 294 out, _ := runSleepingContainer(c, "--net=testbind", "-p", "5000:5000") 295 id := strings.TrimSpace(out) 296 c.Assert(waitRun(id), checker.IsNil) 297 out, _ = dockerCmd(c, "ps") 298 c.Assert(out, checker.Contains, "192.168.10.1:5000->5000/tcp") 299 } 300 301 func (s *DockerNetworkSuite) TestDockerNetworkRmPredefined(c *check.C) { 302 predefined := []string{"bridge", "host", "none", "default"} 303 for _, net := range predefined { 304 // predefined networks can't be removed 305 out, _, err := dockerCmdWithError("network", "rm", net) 306 c.Assert(err, checker.NotNil, check.Commentf("%v", out)) 307 } 308 } 309 310 func (s *DockerNetworkSuite) TestDockerNetworkLsFilter(c *check.C) { 311 out, _ := dockerCmd(c, "network", "create", "dev") 312 defer func() { 313 dockerCmd(c, "network", "rm", "dev") 314 }() 315 networkID := strings.TrimSpace(out) 316 317 // filter with partial ID and partial name 318 // only show 'bridge' and 'dev' network 319 out, _ = dockerCmd(c, "network", "ls", "-f", "id="+networkID[0:5], "-f", "name=dge") 320 assertNwList(c, out, []string{"bridge", "dev"}) 321 322 // only show built-in network (bridge, none, host) 323 out, _ = dockerCmd(c, "network", "ls", "-f", "type=builtin") 324 assertNwList(c, out, []string{"bridge", "host", "none"}) 325 326 // only show custom networks (dev) 327 out, _ = dockerCmd(c, "network", "ls", "-f", "type=custom") 328 assertNwList(c, out, []string{"dev"}) 329 330 // show all networks with filter 331 // it should be equivalent of ls without option 332 out, _ = dockerCmd(c, "network", "ls", "-f", "type=custom", "-f", "type=builtin") 333 assertNwList(c, out, []string{"bridge", "dev", "host", "none"}) 334 } 335 336 func (s *DockerNetworkSuite) TestDockerNetworkCreateDelete(c *check.C) { 337 dockerCmd(c, "network", "create", "test") 338 assertNwIsAvailable(c, "test") 339 340 dockerCmd(c, "network", "rm", "test") 341 assertNwNotAvailable(c, "test") 342 } 343 344 func (s *DockerSuite) TestDockerNetworkDeleteNotExists(c *check.C) { 345 out, _, err := dockerCmdWithError("network", "rm", "test") 346 c.Assert(err, checker.NotNil, check.Commentf("%v", out)) 347 } 348 349 func (s *DockerSuite) TestDockerNetworkDeleteMultiple(c *check.C) { 350 dockerCmd(c, "network", "create", "testDelMulti0") 351 assertNwIsAvailable(c, "testDelMulti0") 352 dockerCmd(c, "network", "create", "testDelMulti1") 353 assertNwIsAvailable(c, "testDelMulti1") 354 dockerCmd(c, "network", "create", "testDelMulti2") 355 assertNwIsAvailable(c, "testDelMulti2") 356 out, _ := dockerCmd(c, "run", "-d", "--net", "testDelMulti2", "busybox", "top") 357 containerID := strings.TrimSpace(out) 358 waitRun(containerID) 359 360 // delete three networks at the same time, since testDelMulti2 361 // contains active container, its deletion should fail. 362 out, _, err := dockerCmdWithError("network", "rm", "testDelMulti0", "testDelMulti1", "testDelMulti2") 363 // err should not be nil due to deleting testDelMulti2 failed. 364 c.Assert(err, checker.NotNil, check.Commentf("out: %s", out)) 365 // testDelMulti2 should fail due to network has active endpoints 366 c.Assert(out, checker.Contains, "has active endpoints") 367 assertNwNotAvailable(c, "testDelMulti0") 368 assertNwNotAvailable(c, "testDelMulti1") 369 // testDelMulti2 can't be deleted, so it should exist 370 assertNwIsAvailable(c, "testDelMulti2") 371 } 372 373 func (s *DockerSuite) TestDockerNetworkInspect(c *check.C) { 374 out, _ := dockerCmd(c, "network", "inspect", "host") 375 networkResources := []types.NetworkResource{} 376 err := json.Unmarshal([]byte(out), &networkResources) 377 c.Assert(err, check.IsNil) 378 c.Assert(networkResources, checker.HasLen, 1) 379 380 out, _ = dockerCmd(c, "network", "inspect", "--format='{{ .Name }}'", "host") 381 c.Assert(strings.TrimSpace(out), check.Equals, "host") 382 } 383 384 func (s *DockerSuite) TestDockerInspectMultipleNetwork(c *check.C) { 385 out, _ := dockerCmd(c, "network", "inspect", "host", "none") 386 networkResources := []types.NetworkResource{} 387 err := json.Unmarshal([]byte(out), &networkResources) 388 c.Assert(err, check.IsNil) 389 c.Assert(networkResources, checker.HasLen, 2) 390 391 // Should print an error, return an exitCode 1 *but* should print the host network 392 out, exitCode, err := dockerCmdWithError("network", "inspect", "host", "nonexistent") 393 c.Assert(err, checker.NotNil) 394 c.Assert(exitCode, checker.Equals, 1) 395 c.Assert(out, checker.Contains, "Error: No such network: nonexistent") 396 networkResources = []types.NetworkResource{} 397 inspectOut := strings.SplitN(out, "\nError: No such network: nonexistent\n", 2)[0] 398 err = json.Unmarshal([]byte(inspectOut), &networkResources) 399 c.Assert(networkResources, checker.HasLen, 1) 400 401 // Should print an error and return an exitCode, nothing else 402 out, exitCode, err = dockerCmdWithError("network", "inspect", "nonexistent") 403 c.Assert(err, checker.NotNil) 404 c.Assert(exitCode, checker.Equals, 1) 405 c.Assert(out, checker.Contains, "Error: No such network: nonexistent") 406 } 407 408 func (s *DockerSuite) TestDockerInspectNetworkWithContainerName(c *check.C) { 409 dockerCmd(c, "network", "create", "brNetForInspect") 410 assertNwIsAvailable(c, "brNetForInspect") 411 defer func() { 412 dockerCmd(c, "network", "rm", "brNetForInspect") 413 assertNwNotAvailable(c, "brNetForInspect") 414 }() 415 416 out, _ := dockerCmd(c, "run", "-d", "--name", "testNetInspect1", "--net", "brNetForInspect", "busybox", "top") 417 c.Assert(waitRun("testNetInspect1"), check.IsNil) 418 containerID := strings.TrimSpace(out) 419 defer func() { 420 // we don't stop container by name, because we'll rename it later 421 dockerCmd(c, "stop", containerID) 422 }() 423 424 out, _ = dockerCmd(c, "network", "inspect", "brNetForInspect") 425 networkResources := []types.NetworkResource{} 426 err := json.Unmarshal([]byte(out), &networkResources) 427 c.Assert(err, check.IsNil) 428 c.Assert(networkResources, checker.HasLen, 1) 429 container, ok := networkResources[0].Containers[containerID] 430 c.Assert(ok, checker.True) 431 c.Assert(container.Name, checker.Equals, "testNetInspect1") 432 433 // rename container and check docker inspect output update 434 newName := "HappyNewName" 435 dockerCmd(c, "rename", "testNetInspect1", newName) 436 437 // check whether network inspect works properly 438 out, _ = dockerCmd(c, "network", "inspect", "brNetForInspect") 439 newNetRes := []types.NetworkResource{} 440 err = json.Unmarshal([]byte(out), &newNetRes) 441 c.Assert(err, check.IsNil) 442 c.Assert(newNetRes, checker.HasLen, 1) 443 container1, ok := newNetRes[0].Containers[containerID] 444 c.Assert(ok, checker.True) 445 c.Assert(container1.Name, checker.Equals, newName) 446 447 } 448 449 func (s *DockerNetworkSuite) TestDockerNetworkConnectDisconnect(c *check.C) { 450 dockerCmd(c, "network", "create", "test") 451 assertNwIsAvailable(c, "test") 452 nr := getNwResource(c, "test") 453 454 c.Assert(nr.Name, checker.Equals, "test") 455 c.Assert(len(nr.Containers), checker.Equals, 0) 456 457 // run a container 458 out, _ := dockerCmd(c, "run", "-d", "--name", "test", "busybox", "top") 459 c.Assert(waitRun("test"), check.IsNil) 460 containerID := strings.TrimSpace(out) 461 462 // connect the container to the test network 463 dockerCmd(c, "network", "connect", "test", containerID) 464 465 // inspect the network to make sure container is connected 466 nr = getNetworkResource(c, nr.ID) 467 c.Assert(len(nr.Containers), checker.Equals, 1) 468 c.Assert(nr.Containers[containerID], check.NotNil) 469 470 // check if container IP matches network inspect 471 ip, _, err := net.ParseCIDR(nr.Containers[containerID].IPv4Address) 472 c.Assert(err, check.IsNil) 473 containerIP := findContainerIP(c, "test", "test") 474 c.Assert(ip.String(), checker.Equals, containerIP) 475 476 // disconnect container from the network 477 dockerCmd(c, "network", "disconnect", "test", containerID) 478 nr = getNwResource(c, "test") 479 c.Assert(nr.Name, checker.Equals, "test") 480 c.Assert(len(nr.Containers), checker.Equals, 0) 481 482 // run another container 483 out, _ = dockerCmd(c, "run", "-d", "--net", "test", "--name", "test2", "busybox", "top") 484 c.Assert(waitRun("test2"), check.IsNil) 485 containerID = strings.TrimSpace(out) 486 487 nr = getNwResource(c, "test") 488 c.Assert(nr.Name, checker.Equals, "test") 489 c.Assert(len(nr.Containers), checker.Equals, 1) 490 491 // force disconnect the container to the test network 492 dockerCmd(c, "network", "disconnect", "-f", "test", containerID) 493 494 nr = getNwResource(c, "test") 495 c.Assert(nr.Name, checker.Equals, "test") 496 c.Assert(len(nr.Containers), checker.Equals, 0) 497 498 dockerCmd(c, "network", "rm", "test") 499 assertNwNotAvailable(c, "test") 500 } 501 502 func (s *DockerNetworkSuite) TestDockerNetworkIpamMultipleNetworks(c *check.C) { 503 // test0 bridge network 504 dockerCmd(c, "network", "create", "--subnet=192.168.0.0/16", "test1") 505 assertNwIsAvailable(c, "test1") 506 507 // test2 bridge network does not overlap 508 dockerCmd(c, "network", "create", "--subnet=192.169.0.0/16", "test2") 509 assertNwIsAvailable(c, "test2") 510 511 // for networks w/o ipam specified, docker will choose proper non-overlapping subnets 512 dockerCmd(c, "network", "create", "test3") 513 assertNwIsAvailable(c, "test3") 514 dockerCmd(c, "network", "create", "test4") 515 assertNwIsAvailable(c, "test4") 516 dockerCmd(c, "network", "create", "test5") 517 assertNwIsAvailable(c, "test5") 518 519 // test network with multiple subnets 520 // bridge network doesn't support multiple subnets. hence, use a dummy driver that supports 521 522 dockerCmd(c, "network", "create", "-d", dummyNetworkDriver, "--subnet=192.168.0.0/16", "--subnet=192.170.0.0/16", "test6") 523 assertNwIsAvailable(c, "test6") 524 525 // test network with multiple subnets with valid ipam combinations 526 // also check same subnet across networks when the driver supports it. 527 dockerCmd(c, "network", "create", "-d", dummyNetworkDriver, 528 "--subnet=192.168.0.0/16", "--subnet=192.170.0.0/16", 529 "--gateway=192.168.0.100", "--gateway=192.170.0.100", 530 "--ip-range=192.168.1.0/24", 531 "--aux-address", "a=192.168.1.5", "--aux-address", "b=192.168.1.6", 532 "--aux-address", "a=192.170.1.5", "--aux-address", "b=192.170.1.6", 533 "test7") 534 assertNwIsAvailable(c, "test7") 535 536 // cleanup 537 for i := 1; i < 8; i++ { 538 dockerCmd(c, "network", "rm", fmt.Sprintf("test%d", i)) 539 } 540 } 541 542 func (s *DockerNetworkSuite) TestDockerNetworkCustomIpam(c *check.C) { 543 // Create a bridge network using custom ipam driver 544 dockerCmd(c, "network", "create", "--ipam-driver", dummyIpamDriver, "br0") 545 assertNwIsAvailable(c, "br0") 546 547 // Verify expected network ipam fields are there 548 nr := getNetworkResource(c, "br0") 549 c.Assert(nr.Driver, checker.Equals, "bridge") 550 c.Assert(nr.IPAM.Driver, checker.Equals, dummyIpamDriver) 551 552 // remove network and exercise remote ipam driver 553 dockerCmd(c, "network", "rm", "br0") 554 assertNwNotAvailable(c, "br0") 555 } 556 557 func (s *DockerNetworkSuite) TestDockerNetworkIpamOptions(c *check.C) { 558 // Create a bridge network using custom ipam driver and options 559 dockerCmd(c, "network", "create", "--ipam-driver", dummyIpamDriver, "--ipam-opt", "opt1=drv1", "--ipam-opt", "opt2=drv2", "br0") 560 assertNwIsAvailable(c, "br0") 561 562 // Verify expected network ipam options 563 nr := getNetworkResource(c, "br0") 564 opts := nr.IPAM.Options 565 c.Assert(opts["opt1"], checker.Equals, "drv1") 566 c.Assert(opts["opt2"], checker.Equals, "drv2") 567 } 568 569 func (s *DockerNetworkSuite) TestDockerNetworkInspectDefault(c *check.C) { 570 nr := getNetworkResource(c, "none") 571 c.Assert(nr.Driver, checker.Equals, "null") 572 c.Assert(nr.Scope, checker.Equals, "local") 573 c.Assert(nr.Internal, checker.Equals, false) 574 c.Assert(nr.EnableIPv6, checker.Equals, false) 575 c.Assert(nr.IPAM.Driver, checker.Equals, "default") 576 c.Assert(len(nr.IPAM.Config), checker.Equals, 0) 577 578 nr = getNetworkResource(c, "host") 579 c.Assert(nr.Driver, checker.Equals, "host") 580 c.Assert(nr.Scope, checker.Equals, "local") 581 c.Assert(nr.Internal, checker.Equals, false) 582 c.Assert(nr.EnableIPv6, checker.Equals, false) 583 c.Assert(nr.IPAM.Driver, checker.Equals, "default") 584 c.Assert(len(nr.IPAM.Config), checker.Equals, 0) 585 586 nr = getNetworkResource(c, "bridge") 587 c.Assert(nr.Driver, checker.Equals, "bridge") 588 c.Assert(nr.Scope, checker.Equals, "local") 589 c.Assert(nr.Internal, checker.Equals, false) 590 c.Assert(nr.EnableIPv6, checker.Equals, false) 591 c.Assert(nr.IPAM.Driver, checker.Equals, "default") 592 c.Assert(len(nr.IPAM.Config), checker.Equals, 1) 593 c.Assert(nr.IPAM.Config[0].Subnet, checker.NotNil) 594 c.Assert(nr.IPAM.Config[0].Gateway, checker.NotNil) 595 } 596 597 func (s *DockerNetworkSuite) TestDockerNetworkInspectCustomUnspecified(c *check.C) { 598 // if unspecified, network subnet will be selected from inside preferred pool 599 dockerCmd(c, "network", "create", "test01") 600 assertNwIsAvailable(c, "test01") 601 602 nr := getNetworkResource(c, "test01") 603 c.Assert(nr.Driver, checker.Equals, "bridge") 604 c.Assert(nr.Scope, checker.Equals, "local") 605 c.Assert(nr.Internal, checker.Equals, false) 606 c.Assert(nr.EnableIPv6, checker.Equals, false) 607 c.Assert(nr.IPAM.Driver, checker.Equals, "default") 608 c.Assert(len(nr.IPAM.Config), checker.Equals, 1) 609 c.Assert(nr.IPAM.Config[0].Subnet, checker.NotNil) 610 c.Assert(nr.IPAM.Config[0].Gateway, checker.NotNil) 611 612 dockerCmd(c, "network", "rm", "test01") 613 assertNwNotAvailable(c, "test01") 614 } 615 616 func (s *DockerNetworkSuite) TestDockerNetworkInspectCustomSpecified(c *check.C) { 617 dockerCmd(c, "network", "create", "--driver=bridge", "--ipv6", "--subnet=172.28.0.0/16", "--ip-range=172.28.5.0/24", "--gateway=172.28.5.254", "br0") 618 assertNwIsAvailable(c, "br0") 619 620 nr := getNetworkResource(c, "br0") 621 c.Assert(nr.Driver, checker.Equals, "bridge") 622 c.Assert(nr.Scope, checker.Equals, "local") 623 c.Assert(nr.Internal, checker.Equals, false) 624 c.Assert(nr.EnableIPv6, checker.Equals, true) 625 c.Assert(nr.IPAM.Driver, checker.Equals, "default") 626 c.Assert(len(nr.IPAM.Config), checker.Equals, 1) 627 c.Assert(nr.IPAM.Config[0].Subnet, checker.Equals, "172.28.0.0/16") 628 c.Assert(nr.IPAM.Config[0].IPRange, checker.Equals, "172.28.5.0/24") 629 c.Assert(nr.IPAM.Config[0].Gateway, checker.Equals, "172.28.5.254") 630 c.Assert(nr.Internal, checker.False) 631 dockerCmd(c, "network", "rm", "br0") 632 assertNwNotAvailable(c, "test01") 633 } 634 635 func (s *DockerNetworkSuite) TestDockerNetworkIpamInvalidCombinations(c *check.C) { 636 // network with ip-range out of subnet range 637 _, _, err := dockerCmdWithError("network", "create", "--subnet=192.168.0.0/16", "--ip-range=192.170.0.0/16", "test") 638 c.Assert(err, check.NotNil) 639 640 // network with multiple gateways for a single subnet 641 _, _, err = dockerCmdWithError("network", "create", "--subnet=192.168.0.0/16", "--gateway=192.168.0.1", "--gateway=192.168.0.2", "test") 642 c.Assert(err, check.NotNil) 643 644 // Multiple overlapping subnets in the same network must fail 645 _, _, err = dockerCmdWithError("network", "create", "--subnet=192.168.0.0/16", "--subnet=192.168.1.0/16", "test") 646 c.Assert(err, check.NotNil) 647 648 // overlapping subnets across networks must fail 649 // create a valid test0 network 650 dockerCmd(c, "network", "create", "--subnet=192.168.0.0/16", "test0") 651 assertNwIsAvailable(c, "test0") 652 // create an overlapping test1 network 653 _, _, err = dockerCmdWithError("network", "create", "--subnet=192.168.128.0/17", "test1") 654 c.Assert(err, check.NotNil) 655 dockerCmd(c, "network", "rm", "test0") 656 assertNwNotAvailable(c, "test0") 657 } 658 659 func (s *DockerNetworkSuite) TestDockerNetworkDriverOptions(c *check.C) { 660 dockerCmd(c, "network", "create", "-d", dummyNetworkDriver, "-o", "opt1=drv1", "-o", "opt2=drv2", "testopt") 661 assertNwIsAvailable(c, "testopt") 662 gopts := remoteDriverNetworkRequest.Options[netlabel.GenericData] 663 c.Assert(gopts, checker.NotNil) 664 opts, ok := gopts.(map[string]interface{}) 665 c.Assert(ok, checker.Equals, true) 666 c.Assert(opts["opt1"], checker.Equals, "drv1") 667 c.Assert(opts["opt2"], checker.Equals, "drv2") 668 dockerCmd(c, "network", "rm", "testopt") 669 assertNwNotAvailable(c, "testopt") 670 671 } 672 673 func (s *DockerDaemonSuite) TestDockerNetworkNoDiscoveryDefaultBridgeNetwork(c *check.C) { 674 testRequires(c, ExecSupport) 675 // On default bridge network built-in service discovery should not happen 676 hostsFile := "/etc/hosts" 677 bridgeName := "external-bridge" 678 bridgeIP := "192.169.255.254/24" 679 out, err := createInterface(c, "bridge", bridgeName, bridgeIP) 680 c.Assert(err, check.IsNil, check.Commentf(out)) 681 defer deleteInterface(c, bridgeName) 682 683 err = s.d.StartWithBusybox("--bridge", bridgeName) 684 c.Assert(err, check.IsNil) 685 defer s.d.Restart() 686 687 // run two containers and store first container's etc/hosts content 688 out, err = s.d.Cmd("run", "-d", "busybox", "top") 689 c.Assert(err, check.IsNil) 690 cid1 := strings.TrimSpace(out) 691 defer s.d.Cmd("stop", cid1) 692 693 hosts, err := s.d.Cmd("exec", cid1, "cat", hostsFile) 694 c.Assert(err, checker.IsNil) 695 696 out, err = s.d.Cmd("run", "-d", "--name", "container2", "busybox", "top") 697 c.Assert(err, check.IsNil) 698 cid2 := strings.TrimSpace(out) 699 700 // verify first container's etc/hosts file has not changed after spawning the second named container 701 hostsPost, err := s.d.Cmd("exec", cid1, "cat", hostsFile) 702 c.Assert(err, checker.IsNil) 703 c.Assert(string(hosts), checker.Equals, string(hostsPost), 704 check.Commentf("Unexpected %s change on second container creation", hostsFile)) 705 706 // stop container 2 and verify first container's etc/hosts has not changed 707 _, err = s.d.Cmd("stop", cid2) 708 c.Assert(err, check.IsNil) 709 710 hostsPost, err = s.d.Cmd("exec", cid1, "cat", hostsFile) 711 c.Assert(err, checker.IsNil) 712 c.Assert(string(hosts), checker.Equals, string(hostsPost), 713 check.Commentf("Unexpected %s change on second container creation", hostsFile)) 714 715 // but discovery is on when connecting to non default bridge network 716 network := "anotherbridge" 717 out, err = s.d.Cmd("network", "create", network) 718 c.Assert(err, check.IsNil, check.Commentf(out)) 719 defer s.d.Cmd("network", "rm", network) 720 721 out, err = s.d.Cmd("network", "connect", network, cid1) 722 c.Assert(err, check.IsNil, check.Commentf(out)) 723 724 hosts, err = s.d.Cmd("exec", cid1, "cat", hostsFile) 725 c.Assert(err, checker.IsNil) 726 727 hostsPost, err = s.d.Cmd("exec", cid1, "cat", hostsFile) 728 c.Assert(err, checker.IsNil) 729 c.Assert(string(hosts), checker.Equals, string(hostsPost), 730 check.Commentf("Unexpected %s change on second network connection", hostsFile)) 731 } 732 733 func (s *DockerNetworkSuite) TestDockerNetworkAnonymousEndpoint(c *check.C) { 734 testRequires(c, ExecSupport, NotArm) 735 hostsFile := "/etc/hosts" 736 cstmBridgeNw := "custom-bridge-nw" 737 cstmBridgeNw1 := "custom-bridge-nw1" 738 739 dockerCmd(c, "network", "create", "-d", "bridge", cstmBridgeNw) 740 assertNwIsAvailable(c, cstmBridgeNw) 741 742 // run two anonymous containers and store their etc/hosts content 743 out, _ := dockerCmd(c, "run", "-d", "--net", cstmBridgeNw, "busybox", "top") 744 cid1 := strings.TrimSpace(out) 745 746 hosts1, err := readContainerFileWithExec(cid1, hostsFile) 747 c.Assert(err, checker.IsNil) 748 749 out, _ = dockerCmd(c, "run", "-d", "--net", cstmBridgeNw, "busybox", "top") 750 cid2 := strings.TrimSpace(out) 751 752 hosts2, err := readContainerFileWithExec(cid2, hostsFile) 753 c.Assert(err, checker.IsNil) 754 755 // verify first container etc/hosts file has not changed 756 hosts1post, err := readContainerFileWithExec(cid1, hostsFile) 757 c.Assert(err, checker.IsNil) 758 c.Assert(string(hosts1), checker.Equals, string(hosts1post), 759 check.Commentf("Unexpected %s change on anonymous container creation", hostsFile)) 760 761 // Connect the 2nd container to a new network and verify the 762 // first container /etc/hosts file still hasn't changed. 763 dockerCmd(c, "network", "create", "-d", "bridge", cstmBridgeNw1) 764 assertNwIsAvailable(c, cstmBridgeNw1) 765 766 dockerCmd(c, "network", "connect", cstmBridgeNw1, cid2) 767 768 hosts2, err = readContainerFileWithExec(cid2, hostsFile) 769 c.Assert(err, checker.IsNil) 770 771 hosts1post, err = readContainerFileWithExec(cid1, hostsFile) 772 c.Assert(err, checker.IsNil) 773 c.Assert(string(hosts1), checker.Equals, string(hosts1post), 774 check.Commentf("Unexpected %s change on container connect", hostsFile)) 775 776 // start a named container 777 cName := "AnyName" 778 out, _ = dockerCmd(c, "run", "-d", "--net", cstmBridgeNw, "--name", cName, "busybox", "top") 779 cid3 := strings.TrimSpace(out) 780 781 // verify that container 1 and 2 can ping the named container 782 dockerCmd(c, "exec", cid1, "ping", "-c", "1", cName) 783 dockerCmd(c, "exec", cid2, "ping", "-c", "1", cName) 784 785 // Stop named container and verify first two containers' etc/hosts file hasn't changed 786 dockerCmd(c, "stop", cid3) 787 hosts1post, err = readContainerFileWithExec(cid1, hostsFile) 788 c.Assert(err, checker.IsNil) 789 c.Assert(string(hosts1), checker.Equals, string(hosts1post), 790 check.Commentf("Unexpected %s change on name container creation", hostsFile)) 791 792 hosts2post, err := readContainerFileWithExec(cid2, hostsFile) 793 c.Assert(err, checker.IsNil) 794 c.Assert(string(hosts2), checker.Equals, string(hosts2post), 795 check.Commentf("Unexpected %s change on name container creation", hostsFile)) 796 797 // verify that container 1 and 2 can't ping the named container now 798 _, _, err = dockerCmdWithError("exec", cid1, "ping", "-c", "1", cName) 799 c.Assert(err, check.NotNil) 800 _, _, err = dockerCmdWithError("exec", cid2, "ping", "-c", "1", cName) 801 c.Assert(err, check.NotNil) 802 } 803 804 func (s *DockerNetworkSuite) TestDockerNetworkLinkOnDefaultNetworkOnly(c *check.C) { 805 // Legacy Link feature must work only on default network, and not across networks 806 cnt1 := "container1" 807 cnt2 := "container2" 808 network := "anotherbridge" 809 810 // Run first container on default network 811 dockerCmd(c, "run", "-d", "--name", cnt1, "busybox", "top") 812 813 // Create another network and run the second container on it 814 dockerCmd(c, "network", "create", network) 815 assertNwIsAvailable(c, network) 816 dockerCmd(c, "run", "-d", "--net", network, "--name", cnt2, "busybox", "top") 817 818 // Try launching a container on default network, linking to the first container. Must succeed 819 dockerCmd(c, "run", "-d", "--link", fmt.Sprintf("%s:%s", cnt1, cnt1), "busybox", "top") 820 821 // Try launching a container on default network, linking to the second container. Must fail 822 _, _, err := dockerCmdWithError("run", "-d", "--link", fmt.Sprintf("%s:%s", cnt2, cnt2), "busybox", "top") 823 c.Assert(err, checker.NotNil) 824 825 // Connect second container to default network. Now a container on default network can link to it 826 dockerCmd(c, "network", "connect", "bridge", cnt2) 827 dockerCmd(c, "run", "-d", "--link", fmt.Sprintf("%s:%s", cnt2, cnt2), "busybox", "top") 828 } 829 830 func (s *DockerNetworkSuite) TestDockerNetworkOverlayPortMapping(c *check.C) { 831 // Verify exposed ports are present in ps output when running a container on 832 // a network managed by a driver which does not provide the default gateway 833 // for the container 834 nwn := "ov" 835 ctn := "bb" 836 port1 := 80 837 port2 := 443 838 expose1 := fmt.Sprintf("--expose=%d", port1) 839 expose2 := fmt.Sprintf("--expose=%d", port2) 840 841 dockerCmd(c, "network", "create", "-d", dummyNetworkDriver, nwn) 842 assertNwIsAvailable(c, nwn) 843 844 dockerCmd(c, "run", "-d", "--net", nwn, "--name", ctn, expose1, expose2, "busybox", "top") 845 846 // Check docker ps o/p for last created container reports the unpublished ports 847 unpPort1 := fmt.Sprintf("%d/tcp", port1) 848 unpPort2 := fmt.Sprintf("%d/tcp", port2) 849 out, _ := dockerCmd(c, "ps", "-n=1") 850 // Missing unpublished ports in docker ps output 851 c.Assert(out, checker.Contains, unpPort1) 852 // Missing unpublished ports in docker ps output 853 c.Assert(out, checker.Contains, unpPort2) 854 } 855 856 func (s *DockerNetworkSuite) TestDockerNetworkDriverUngracefulRestart(c *check.C) { 857 testRequires(c, DaemonIsLinux, NotUserNamespace) 858 dnd := "dnd" 859 did := "did" 860 861 mux := http.NewServeMux() 862 server := httptest.NewServer(mux) 863 setupRemoteNetworkDrivers(c, mux, server.URL, dnd, did) 864 865 s.d.StartWithBusybox() 866 _, err := s.d.Cmd("network", "create", "-d", dnd, "--subnet", "1.1.1.0/24", "net1") 867 c.Assert(err, checker.IsNil) 868 869 _, err = s.d.Cmd("run", "-itd", "--net", "net1", "--name", "foo", "--ip", "1.1.1.10", "busybox", "sh") 870 c.Assert(err, checker.IsNil) 871 872 // Kill daemon and restart 873 if err = s.d.cmd.Process.Kill(); err != nil { 874 c.Fatal(err) 875 } 876 877 server.Close() 878 879 startTime := time.Now().Unix() 880 if err = s.d.Restart(); err != nil { 881 c.Fatal(err) 882 } 883 lapse := time.Now().Unix() - startTime 884 if lapse > 60 { 885 // In normal scenarios, daemon restart takes ~1 second. 886 // Plugin retry mechanism can delay the daemon start. systemd may not like it. 887 // Avoid accessing plugins during daemon bootup 888 c.Logf("daemon restart took too long : %d seconds", lapse) 889 } 890 891 // Restart the custom dummy plugin 892 mux = http.NewServeMux() 893 server = httptest.NewServer(mux) 894 setupRemoteNetworkDrivers(c, mux, server.URL, dnd, did) 895 896 // trying to reuse the same ip must succeed 897 _, err = s.d.Cmd("run", "-itd", "--net", "net1", "--name", "bar", "--ip", "1.1.1.10", "busybox", "sh") 898 c.Assert(err, checker.IsNil) 899 } 900 901 func (s *DockerNetworkSuite) TestDockerNetworkMacInspect(c *check.C) { 902 // Verify endpoint MAC address is correctly populated in container's network settings 903 nwn := "ov" 904 ctn := "bb" 905 906 dockerCmd(c, "network", "create", "-d", dummyNetworkDriver, nwn) 907 assertNwIsAvailable(c, nwn) 908 909 dockerCmd(c, "run", "-d", "--net", nwn, "--name", ctn, "busybox", "top") 910 911 mac := inspectField(c, ctn, "NetworkSettings.Networks."+nwn+".MacAddress") 912 c.Assert(mac, checker.Equals, "a0:b1:c2:d3:e4:f5") 913 } 914 915 func (s *DockerSuite) TestInspectApiMultipleNetworks(c *check.C) { 916 dockerCmd(c, "network", "create", "mybridge1") 917 dockerCmd(c, "network", "create", "mybridge2") 918 out, _ := dockerCmd(c, "run", "-d", "busybox", "top") 919 id := strings.TrimSpace(out) 920 c.Assert(waitRun(id), check.IsNil) 921 922 dockerCmd(c, "network", "connect", "mybridge1", id) 923 dockerCmd(c, "network", "connect", "mybridge2", id) 924 925 body := getInspectBody(c, "v1.20", id) 926 var inspect120 v1p20.ContainerJSON 927 err := json.Unmarshal(body, &inspect120) 928 c.Assert(err, checker.IsNil) 929 930 versionedIP := inspect120.NetworkSettings.IPAddress 931 932 body = getInspectBody(c, "v1.21", id) 933 var inspect121 types.ContainerJSON 934 err = json.Unmarshal(body, &inspect121) 935 c.Assert(err, checker.IsNil) 936 c.Assert(inspect121.NetworkSettings.Networks, checker.HasLen, 3) 937 938 bridge := inspect121.NetworkSettings.Networks["bridge"] 939 c.Assert(bridge.IPAddress, checker.Equals, versionedIP) 940 c.Assert(bridge.IPAddress, checker.Equals, inspect121.NetworkSettings.IPAddress) 941 } 942 943 func connectContainerToNetworks(c *check.C, d *Daemon, cName string, nws []string) { 944 // Run a container on the default network 945 out, err := d.Cmd("run", "-d", "--name", cName, "busybox", "top") 946 c.Assert(err, checker.IsNil, check.Commentf(out)) 947 948 // Attach the container to other networks 949 for _, nw := range nws { 950 out, err = d.Cmd("network", "create", nw) 951 c.Assert(err, checker.IsNil, check.Commentf(out)) 952 out, err = d.Cmd("network", "connect", nw, cName) 953 c.Assert(err, checker.IsNil, check.Commentf(out)) 954 } 955 } 956 957 func verifyContainerIsConnectedToNetworks(c *check.C, d *Daemon, cName string, nws []string) { 958 // Verify container is connected to all the networks 959 for _, nw := range nws { 960 out, err := d.Cmd("inspect", "-f", fmt.Sprintf("{{.NetworkSettings.Networks.%s}}", nw), cName) 961 c.Assert(err, checker.IsNil, check.Commentf(out)) 962 c.Assert(out, checker.Not(checker.Equals), "<no value>\n") 963 } 964 } 965 966 func (s *DockerNetworkSuite) TestDockerNetworkMultipleNetworksGracefulDaemonRestart(c *check.C) { 967 cName := "bb" 968 nwList := []string{"nw1", "nw2", "nw3"} 969 970 s.d.StartWithBusybox() 971 972 connectContainerToNetworks(c, s.d, cName, nwList) 973 verifyContainerIsConnectedToNetworks(c, s.d, cName, nwList) 974 975 // Reload daemon 976 s.d.Restart() 977 978 _, err := s.d.Cmd("start", cName) 979 c.Assert(err, checker.IsNil) 980 981 verifyContainerIsConnectedToNetworks(c, s.d, cName, nwList) 982 } 983 984 func (s *DockerNetworkSuite) TestDockerNetworkMultipleNetworksUngracefulDaemonRestart(c *check.C) { 985 cName := "cc" 986 nwList := []string{"nw1", "nw2", "nw3"} 987 988 s.d.StartWithBusybox() 989 990 connectContainerToNetworks(c, s.d, cName, nwList) 991 verifyContainerIsConnectedToNetworks(c, s.d, cName, nwList) 992 993 // Kill daemon and restart 994 if err := s.d.cmd.Process.Kill(); err != nil { 995 c.Fatal(err) 996 } 997 s.d.Restart() 998 999 // Restart container 1000 _, err := s.d.Cmd("start", cName) 1001 c.Assert(err, checker.IsNil) 1002 1003 verifyContainerIsConnectedToNetworks(c, s.d, cName, nwList) 1004 } 1005 1006 func (s *DockerNetworkSuite) TestDockerNetworkRunNetByID(c *check.C) { 1007 out, _ := dockerCmd(c, "network", "create", "one") 1008 containerOut, _, err := dockerCmdWithError("run", "-d", "--net", strings.TrimSpace(out), "busybox", "top") 1009 c.Assert(err, checker.IsNil, check.Commentf(containerOut)) 1010 } 1011 1012 func (s *DockerNetworkSuite) TestDockerNetworkHostModeUngracefulDaemonRestart(c *check.C) { 1013 testRequires(c, DaemonIsLinux, NotUserNamespace) 1014 s.d.StartWithBusybox() 1015 1016 // Run a few containers on host network 1017 for i := 0; i < 10; i++ { 1018 cName := fmt.Sprintf("hostc-%d", i) 1019 out, err := s.d.Cmd("run", "-d", "--name", cName, "--net=host", "--restart=always", "busybox", "top") 1020 c.Assert(err, checker.IsNil, check.Commentf(out)) 1021 1022 // verfiy container has finished starting before killing daemon 1023 err = s.d.waitRun(cName) 1024 c.Assert(err, checker.IsNil) 1025 } 1026 1027 // Kill daemon ungracefully and restart 1028 if err := s.d.cmd.Process.Kill(); err != nil { 1029 c.Fatal(err) 1030 } 1031 if err := s.d.Restart(); err != nil { 1032 c.Fatal(err) 1033 } 1034 1035 // make sure all the containers are up and running 1036 for i := 0; i < 10; i++ { 1037 err := s.d.waitRun(fmt.Sprintf("hostc-%d", i)) 1038 c.Assert(err, checker.IsNil) 1039 } 1040 } 1041 1042 func (s *DockerNetworkSuite) TestDockerNetworkConnectToHostFromOtherNetwork(c *check.C) { 1043 dockerCmd(c, "run", "-d", "--name", "container1", "busybox", "top") 1044 c.Assert(waitRun("container1"), check.IsNil) 1045 dockerCmd(c, "network", "disconnect", "bridge", "container1") 1046 out, _, err := dockerCmdWithError("network", "connect", "host", "container1") 1047 c.Assert(err, checker.NotNil, check.Commentf(out)) 1048 c.Assert(out, checker.Contains, runconfig.ErrConflictHostNetwork.Error()) 1049 } 1050 1051 func (s *DockerNetworkSuite) TestDockerNetworkDisconnectFromHost(c *check.C) { 1052 dockerCmd(c, "run", "-d", "--name", "container1", "--net=host", "busybox", "top") 1053 c.Assert(waitRun("container1"), check.IsNil) 1054 out, _, err := dockerCmdWithError("network", "disconnect", "host", "container1") 1055 c.Assert(err, checker.NotNil, check.Commentf("Should err out disconnect from host")) 1056 c.Assert(out, checker.Contains, runconfig.ErrConflictHostNetwork.Error()) 1057 } 1058 1059 func (s *DockerNetworkSuite) TestDockerNetworkConnectWithPortMapping(c *check.C) { 1060 testRequires(c, NotArm) 1061 dockerCmd(c, "network", "create", "test1") 1062 dockerCmd(c, "run", "-d", "--name", "c1", "-p", "5000:5000", "busybox", "top") 1063 c.Assert(waitRun("c1"), check.IsNil) 1064 dockerCmd(c, "network", "connect", "test1", "c1") 1065 } 1066 1067 func (s *DockerNetworkSuite) TestDockerNetworkConnectWithMac(c *check.C) { 1068 macAddress := "02:42:ac:11:00:02" 1069 dockerCmd(c, "network", "create", "mynetwork") 1070 dockerCmd(c, "run", "--name=test", "-d", "--mac-address", macAddress, "busybox", "top") 1071 c.Assert(waitRun("test"), check.IsNil) 1072 mac1 := inspectField(c, "test", "NetworkSettings.Networks.bridge.MacAddress") 1073 c.Assert(strings.TrimSpace(mac1), checker.Equals, macAddress) 1074 dockerCmd(c, "network", "connect", "mynetwork", "test") 1075 mac2 := inspectField(c, "test", "NetworkSettings.Networks.mynetwork.MacAddress") 1076 c.Assert(strings.TrimSpace(mac2), checker.Not(checker.Equals), strings.TrimSpace(mac1)) 1077 } 1078 1079 func (s *DockerNetworkSuite) TestDockerNetworkInspectCreatedContainer(c *check.C) { 1080 dockerCmd(c, "create", "--name", "test", "busybox") 1081 networks := inspectField(c, "test", "NetworkSettings.Networks") 1082 c.Assert(networks, checker.Contains, "bridge", check.Commentf("Should return 'bridge' network")) 1083 } 1084 1085 func (s *DockerNetworkSuite) TestDockerNetworkRestartWithMultipleNetworks(c *check.C) { 1086 dockerCmd(c, "network", "create", "test") 1087 dockerCmd(c, "run", "--name=foo", "-d", "busybox", "top") 1088 c.Assert(waitRun("foo"), checker.IsNil) 1089 dockerCmd(c, "network", "connect", "test", "foo") 1090 dockerCmd(c, "restart", "foo") 1091 networks := inspectField(c, "foo", "NetworkSettings.Networks") 1092 c.Assert(networks, checker.Contains, "bridge", check.Commentf("Should contain 'bridge' network")) 1093 c.Assert(networks, checker.Contains, "test", check.Commentf("Should contain 'test' network")) 1094 } 1095 1096 func (s *DockerNetworkSuite) TestDockerNetworkConnectDisconnectToStoppedContainer(c *check.C) { 1097 dockerCmd(c, "network", "create", "test") 1098 dockerCmd(c, "create", "--name=foo", "busybox", "top") 1099 dockerCmd(c, "network", "connect", "test", "foo") 1100 networks := inspectField(c, "foo", "NetworkSettings.Networks") 1101 c.Assert(networks, checker.Contains, "test", check.Commentf("Should contain 'test' network")) 1102 1103 // Restart docker daemon to test the config has persisted to disk 1104 s.d.Restart() 1105 networks = inspectField(c, "foo", "NetworkSettings.Networks") 1106 c.Assert(networks, checker.Contains, "test", check.Commentf("Should contain 'test' network")) 1107 1108 // start the container and test if we can ping it from another container in the same network 1109 dockerCmd(c, "start", "foo") 1110 c.Assert(waitRun("foo"), checker.IsNil) 1111 ip := inspectField(c, "foo", "NetworkSettings.Networks.test.IPAddress") 1112 ip = strings.TrimSpace(ip) 1113 dockerCmd(c, "run", "--net=test", "busybox", "sh", "-c", fmt.Sprintf("ping -c 1 %s", ip)) 1114 1115 dockerCmd(c, "stop", "foo") 1116 1117 // Test disconnect 1118 dockerCmd(c, "network", "disconnect", "test", "foo") 1119 networks = inspectField(c, "foo", "NetworkSettings.Networks") 1120 c.Assert(networks, checker.Not(checker.Contains), "test", check.Commentf("Should not contain 'test' network")) 1121 1122 // Restart docker daemon to test the config has persisted to disk 1123 s.d.Restart() 1124 networks = inspectField(c, "foo", "NetworkSettings.Networks") 1125 c.Assert(networks, checker.Not(checker.Contains), "test", check.Commentf("Should not contain 'test' network")) 1126 1127 } 1128 1129 func (s *DockerNetworkSuite) TestDockerNetworkConnectPreferredIP(c *check.C) { 1130 // create two networks 1131 dockerCmd(c, "network", "create", "--subnet=172.28.0.0/16", "--subnet=2001:db8:1234::/64", "n0") 1132 assertNwIsAvailable(c, "n0") 1133 1134 dockerCmd(c, "network", "create", "--subnet=172.30.0.0/16", "--ip-range=172.30.5.0/24", "--subnet=2001:db8:abcd::/64", "--ip-range=2001:db8:abcd::/80", "n1") 1135 assertNwIsAvailable(c, "n1") 1136 1137 // run a container on first network specifying the ip addresses 1138 dockerCmd(c, "run", "-d", "--name", "c0", "--net=n0", "--ip", "172.28.99.88", "--ip6", "2001:db8:1234::9988", "busybox", "top") 1139 c.Assert(waitRun("c0"), check.IsNil) 1140 verifyIPAddressConfig(c, "c0", "n0", "172.28.99.88", "2001:db8:1234::9988") 1141 verifyIPAddresses(c, "c0", "n0", "172.28.99.88", "2001:db8:1234::9988") 1142 1143 // connect the container to the second network specifying an ip addresses 1144 dockerCmd(c, "network", "connect", "--ip", "172.30.55.44", "--ip6", "2001:db8:abcd::5544", "n1", "c0") 1145 verifyIPAddressConfig(c, "c0", "n1", "172.30.55.44", "2001:db8:abcd::5544") 1146 verifyIPAddresses(c, "c0", "n1", "172.30.55.44", "2001:db8:abcd::5544") 1147 1148 // Stop and restart the container 1149 dockerCmd(c, "stop", "c0") 1150 dockerCmd(c, "start", "c0") 1151 1152 // verify requested addresses are applied and configs are still there 1153 verifyIPAddressConfig(c, "c0", "n0", "172.28.99.88", "2001:db8:1234::9988") 1154 verifyIPAddresses(c, "c0", "n0", "172.28.99.88", "2001:db8:1234::9988") 1155 verifyIPAddressConfig(c, "c0", "n1", "172.30.55.44", "2001:db8:abcd::5544") 1156 verifyIPAddresses(c, "c0", "n1", "172.30.55.44", "2001:db8:abcd::5544") 1157 1158 // Still it should fail to connect to the default network with a specified IP (whatever ip) 1159 out, _, err := dockerCmdWithError("network", "connect", "--ip", "172.21.55.44", "bridge", "c0") 1160 c.Assert(err, checker.NotNil, check.Commentf("out: %s", out)) 1161 c.Assert(out, checker.Contains, runconfig.ErrUnsupportedNetworkAndIP.Error()) 1162 1163 } 1164 1165 func (s *DockerNetworkSuite) TestDockerNetworkConnectPreferredIPStoppedContainer(c *check.C) { 1166 // create a container 1167 dockerCmd(c, "create", "--name", "c0", "busybox", "top") 1168 1169 // create a network 1170 dockerCmd(c, "network", "create", "--subnet=172.30.0.0/16", "--subnet=2001:db8:abcd::/64", "n0") 1171 assertNwIsAvailable(c, "n0") 1172 1173 // connect the container to the network specifying an ip addresses 1174 dockerCmd(c, "network", "connect", "--ip", "172.30.55.44", "--ip6", "2001:db8:abcd::5544", "n0", "c0") 1175 verifyIPAddressConfig(c, "c0", "n0", "172.30.55.44", "2001:db8:abcd::5544") 1176 1177 // start the container, verify config has not changed and ip addresses are assigned 1178 dockerCmd(c, "start", "c0") 1179 c.Assert(waitRun("c0"), check.IsNil) 1180 verifyIPAddressConfig(c, "c0", "n0", "172.30.55.44", "2001:db8:abcd::5544") 1181 verifyIPAddresses(c, "c0", "n0", "172.30.55.44", "2001:db8:abcd::5544") 1182 1183 // stop the container and check ip config has not changed 1184 dockerCmd(c, "stop", "c0") 1185 verifyIPAddressConfig(c, "c0", "n0", "172.30.55.44", "2001:db8:abcd::5544") 1186 } 1187 1188 func (s *DockerNetworkSuite) TestDockerNetworkUnsupportedRequiredIP(c *check.C) { 1189 // requested IP is not supported on predefined networks 1190 for _, mode := range []string{"none", "host", "bridge", "default"} { 1191 checkUnsupportedNetworkAndIP(c, mode) 1192 } 1193 1194 // requested IP is not supported on networks with no user defined subnets 1195 dockerCmd(c, "network", "create", "n0") 1196 assertNwIsAvailable(c, "n0") 1197 1198 out, _, err := dockerCmdWithError("run", "-d", "--ip", "172.28.99.88", "--net", "n0", "busybox", "top") 1199 c.Assert(err, checker.NotNil, check.Commentf("out: %s", out)) 1200 c.Assert(out, checker.Contains, runconfig.ErrUnsupportedNetworkNoSubnetAndIP.Error()) 1201 1202 out, _, err = dockerCmdWithError("run", "-d", "--ip6", "2001:db8:1234::9988", "--net", "n0", "busybox", "top") 1203 c.Assert(err, checker.NotNil, check.Commentf("out: %s", out)) 1204 c.Assert(out, checker.Contains, runconfig.ErrUnsupportedNetworkNoSubnetAndIP.Error()) 1205 1206 dockerCmd(c, "network", "rm", "n0") 1207 assertNwNotAvailable(c, "n0") 1208 } 1209 1210 func checkUnsupportedNetworkAndIP(c *check.C, nwMode string) { 1211 out, _, err := dockerCmdWithError("run", "-d", "--net", nwMode, "--ip", "172.28.99.88", "--ip6", "2001:db8:1234::9988", "busybox", "top") 1212 c.Assert(err, checker.NotNil, check.Commentf("out: %s", out)) 1213 c.Assert(out, checker.Contains, runconfig.ErrUnsupportedNetworkAndIP.Error()) 1214 } 1215 1216 func verifyIPAddressConfig(c *check.C, cName, nwname, ipv4, ipv6 string) { 1217 if ipv4 != "" { 1218 out := inspectField(c, cName, fmt.Sprintf("NetworkSettings.Networks.%s.IPAMConfig.IPv4Address", nwname)) 1219 c.Assert(strings.TrimSpace(out), check.Equals, ipv4) 1220 } 1221 1222 if ipv6 != "" { 1223 out := inspectField(c, cName, fmt.Sprintf("NetworkSettings.Networks.%s.IPAMConfig.IPv6Address", nwname)) 1224 c.Assert(strings.TrimSpace(out), check.Equals, ipv6) 1225 } 1226 } 1227 1228 func verifyIPAddresses(c *check.C, cName, nwname, ipv4, ipv6 string) { 1229 out := inspectField(c, cName, fmt.Sprintf("NetworkSettings.Networks.%s.IPAddress", nwname)) 1230 c.Assert(strings.TrimSpace(out), check.Equals, ipv4) 1231 1232 out = inspectField(c, cName, fmt.Sprintf("NetworkSettings.Networks.%s.GlobalIPv6Address", nwname)) 1233 c.Assert(strings.TrimSpace(out), check.Equals, ipv6) 1234 } 1235 1236 func (s *DockerSuite) TestUserDefinedNetworkConnectDisconnectLink(c *check.C) { 1237 testRequires(c, DaemonIsLinux, NotUserNamespace, NotArm) 1238 dockerCmd(c, "network", "create", "-d", "bridge", "foo1") 1239 dockerCmd(c, "network", "create", "-d", "bridge", "foo2") 1240 1241 dockerCmd(c, "run", "-d", "--net=foo1", "--name=first", "busybox", "top") 1242 c.Assert(waitRun("first"), check.IsNil) 1243 1244 // run a container in a user-defined network with a link for an existing container 1245 // and a link for a container that doesn't exist 1246 dockerCmd(c, "run", "-d", "--net=foo1", "--name=second", "--link=first:FirstInFoo1", 1247 "--link=third:bar", "busybox", "top") 1248 c.Assert(waitRun("second"), check.IsNil) 1249 1250 // ping to first and its alias FirstInFoo1 must succeed 1251 _, _, err := dockerCmdWithError("exec", "second", "ping", "-c", "1", "first") 1252 c.Assert(err, check.IsNil) 1253 _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "FirstInFoo1") 1254 c.Assert(err, check.IsNil) 1255 1256 // connect first container to foo2 network 1257 dockerCmd(c, "network", "connect", "foo2", "first") 1258 // connect second container to foo2 network with a different alias for first container 1259 dockerCmd(c, "network", "connect", "--link=first:FirstInFoo2", "foo2", "second") 1260 1261 // ping the new alias in network foo2 1262 _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "FirstInFoo2") 1263 c.Assert(err, check.IsNil) 1264 1265 // disconnect first container from foo1 network 1266 dockerCmd(c, "network", "disconnect", "foo1", "first") 1267 1268 // link in foo1 network must fail 1269 _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "FirstInFoo1") 1270 c.Assert(err, check.NotNil) 1271 1272 // link in foo2 network must succeed 1273 _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "FirstInFoo2") 1274 c.Assert(err, check.IsNil) 1275 } 1276 1277 // #19100 This is a deprecated feature test, it should be removed in Docker 1.12 1278 func (s *DockerNetworkSuite) TestDockerNetworkStartAPIWithHostconfig(c *check.C) { 1279 netName := "test" 1280 conName := "foo" 1281 dockerCmd(c, "network", "create", netName) 1282 dockerCmd(c, "create", "--name", conName, "busybox", "top") 1283 1284 config := map[string]interface{}{ 1285 "HostConfig": map[string]interface{}{ 1286 "NetworkMode": netName, 1287 }, 1288 } 1289 _, _, err := sockRequest("POST", "/containers/"+conName+"/start", config) 1290 c.Assert(err, checker.IsNil) 1291 c.Assert(waitRun(conName), checker.IsNil) 1292 networks := inspectField(c, conName, "NetworkSettings.Networks") 1293 c.Assert(networks, checker.Contains, netName, check.Commentf(fmt.Sprintf("Should contain '%s' network", netName))) 1294 c.Assert(networks, checker.Not(checker.Contains), "bridge", check.Commentf("Should not contain 'bridge' network")) 1295 } 1296 1297 func (s *DockerNetworkSuite) TestDockerNetworkDisconnectDefault(c *check.C) { 1298 netWorkName1 := "test1" 1299 netWorkName2 := "test2" 1300 containerName := "foo" 1301 1302 dockerCmd(c, "network", "create", netWorkName1) 1303 dockerCmd(c, "network", "create", netWorkName2) 1304 dockerCmd(c, "create", "--name", containerName, "busybox", "top") 1305 dockerCmd(c, "network", "connect", netWorkName1, containerName) 1306 dockerCmd(c, "network", "connect", netWorkName2, containerName) 1307 dockerCmd(c, "network", "disconnect", "bridge", containerName) 1308 1309 dockerCmd(c, "start", containerName) 1310 c.Assert(waitRun(containerName), checker.IsNil) 1311 networks := inspectField(c, containerName, "NetworkSettings.Networks") 1312 c.Assert(networks, checker.Contains, netWorkName1, check.Commentf(fmt.Sprintf("Should contain '%s' network", netWorkName1))) 1313 c.Assert(networks, checker.Contains, netWorkName2, check.Commentf(fmt.Sprintf("Should contain '%s' network", netWorkName2))) 1314 c.Assert(networks, checker.Not(checker.Contains), "bridge", check.Commentf("Should not contain 'bridge' network")) 1315 } 1316 1317 func (s *DockerNetworkSuite) TestDockerNetworkConnectWithAliasOnDefaultNetworks(c *check.C) { 1318 testRequires(c, DaemonIsLinux, NotUserNamespace, NotArm) 1319 1320 defaults := []string{"bridge", "host", "none"} 1321 out, _ := dockerCmd(c, "run", "-d", "--net=none", "busybox", "top") 1322 containerID := strings.TrimSpace(out) 1323 for _, net := range defaults { 1324 res, _, err := dockerCmdWithError("network", "connect", "--alias", "alias"+net, net, containerID) 1325 c.Assert(err, checker.NotNil) 1326 c.Assert(res, checker.Contains, runconfig.ErrUnsupportedNetworkAndAlias.Error()) 1327 } 1328 } 1329 1330 func (s *DockerSuite) TestUserDefinedNetworkConnectDisconnectAlias(c *check.C) { 1331 testRequires(c, DaemonIsLinux, NotUserNamespace, NotArm) 1332 dockerCmd(c, "network", "create", "-d", "bridge", "net1") 1333 dockerCmd(c, "network", "create", "-d", "bridge", "net2") 1334 1335 dockerCmd(c, "run", "-d", "--net=net1", "--name=first", "--net-alias=foo", "busybox", "top") 1336 c.Assert(waitRun("first"), check.IsNil) 1337 1338 dockerCmd(c, "run", "-d", "--net=net1", "--name=second", "busybox", "top") 1339 c.Assert(waitRun("second"), check.IsNil) 1340 1341 // ping first container and its alias 1342 _, _, err := dockerCmdWithError("exec", "second", "ping", "-c", "1", "first") 1343 c.Assert(err, check.IsNil) 1344 _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "foo") 1345 c.Assert(err, check.IsNil) 1346 1347 // connect first container to net2 network 1348 dockerCmd(c, "network", "connect", "--alias=bar", "net2", "first") 1349 // connect second container to foo2 network with a different alias for first container 1350 dockerCmd(c, "network", "connect", "net2", "second") 1351 1352 // ping the new alias in network foo2 1353 _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "bar") 1354 c.Assert(err, check.IsNil) 1355 1356 // disconnect first container from net1 network 1357 dockerCmd(c, "network", "disconnect", "net1", "first") 1358 1359 // ping to net1 scoped alias "foo" must fail 1360 _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "foo") 1361 c.Assert(err, check.NotNil) 1362 1363 // ping to net2 scoped alias "bar" must still succeed 1364 _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "bar") 1365 c.Assert(err, check.IsNil) 1366 1367 // verify the alias option is rejected when running on predefined network 1368 out, _, err := dockerCmdWithError("run", "--rm", "--name=any", "--net-alias=any", "busybox", "top") 1369 c.Assert(err, checker.NotNil, check.Commentf("out: %s", out)) 1370 c.Assert(out, checker.Contains, runconfig.ErrUnsupportedNetworkAndAlias.Error()) 1371 1372 // verify the alias option is rejected when connecting to predefined network 1373 out, _, err = dockerCmdWithError("network", "connect", "--alias=any", "bridge", "first") 1374 c.Assert(err, checker.NotNil, check.Commentf("out: %s", out)) 1375 c.Assert(out, checker.Contains, runconfig.ErrUnsupportedNetworkAndAlias.Error()) 1376 } 1377 1378 func (s *DockerSuite) TestUserDefinedNetworkConnectivity(c *check.C) { 1379 testRequires(c, DaemonIsLinux, NotUserNamespace) 1380 dockerCmd(c, "network", "create", "-d", "bridge", "br.net1") 1381 1382 dockerCmd(c, "run", "-d", "--net=br.net1", "--name=c1.net1", "busybox", "top") 1383 c.Assert(waitRun("c1.net1"), check.IsNil) 1384 1385 dockerCmd(c, "run", "-d", "--net=br.net1", "--name=c2.net1", "busybox", "top") 1386 c.Assert(waitRun("c2.net1"), check.IsNil) 1387 1388 // ping first container by its unqualified name 1389 _, _, err := dockerCmdWithError("exec", "c2.net1", "ping", "-c", "1", "c1.net1") 1390 c.Assert(err, check.IsNil) 1391 1392 // ping first container by its qualified name 1393 _, _, err = dockerCmdWithError("exec", "c2.net1", "ping", "-c", "1", "c1.net1.br.net1") 1394 c.Assert(err, check.IsNil) 1395 1396 // ping with first qualified name masked by an additional domain. should fail 1397 _, _, err = dockerCmdWithError("exec", "c2.net1", "ping", "-c", "1", "c1.net1.br.net1.google.com") 1398 c.Assert(err, check.NotNil) 1399 } 1400 1401 func (s *DockerSuite) TestEmbeddedDNSInvalidInput(c *check.C) { 1402 testRequires(c, DaemonIsLinux, NotUserNamespace) 1403 dockerCmd(c, "network", "create", "-d", "bridge", "nw1") 1404 1405 // Sending garbage to embedded DNS shouldn't crash the daemon 1406 dockerCmd(c, "run", "-i", "--net=nw1", "--name=c1", "debian:jessie", "bash", "-c", "echo InvalidQuery > /dev/udp/127.0.0.11/53") 1407 } 1408 1409 func (s *DockerSuite) TestDockerNetworkConnectFailsNoInspectChange(c *check.C) { 1410 dockerCmd(c, "run", "-d", "--name=bb", "busybox", "top") 1411 c.Assert(waitRun("bb"), check.IsNil) 1412 1413 ns0 := inspectField(c, "bb", "NetworkSettings.Networks.bridge") 1414 1415 // A failing redundant network connect should not alter current container's endpoint settings 1416 _, _, err := dockerCmdWithError("network", "connect", "bridge", "bb") 1417 c.Assert(err, check.NotNil) 1418 1419 ns1 := inspectField(c, "bb", "NetworkSettings.Networks.bridge") 1420 c.Assert(ns1, check.Equals, ns0) 1421 } 1422 1423 func (s *DockerSuite) TestDockerNetworkInternalMode(c *check.C) { 1424 dockerCmd(c, "network", "create", "--driver=bridge", "--internal", "internal") 1425 assertNwIsAvailable(c, "internal") 1426 nr := getNetworkResource(c, "internal") 1427 c.Assert(nr.Internal, checker.True) 1428 1429 dockerCmd(c, "run", "-d", "--net=internal", "--name=first", "busybox", "top") 1430 c.Assert(waitRun("first"), check.IsNil) 1431 dockerCmd(c, "run", "-d", "--net=internal", "--name=second", "busybox", "top") 1432 c.Assert(waitRun("second"), check.IsNil) 1433 out, _, err := dockerCmdWithError("exec", "first", "ping", "-W", "4", "-c", "1", "www.google.com") 1434 c.Assert(err, check.NotNil) 1435 c.Assert(out, checker.Contains, "ping: bad address") 1436 _, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "first") 1437 c.Assert(err, check.IsNil) 1438 }