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moby--moby/integration-cli/docker_cli_network_unix_test.go
Vincent Demeester 7af9f988ac Add support for multiple network in inspect
To be consistent with other inspect command (on container and images),
add the possiblity to pass multiple network to the network inspect
commands.

`docker network inspect host bridge none` is possible now.

Signed-off-by: Vincent Demeester <vincent@sbr.pm>
2015-10-21 08:57:29 +02:00

304 lines
10 KiB
Go

// +build !windows
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/http/httptest"
"os"
"strings"
"github.com/docker/docker/api/types"
"github.com/docker/docker/pkg/integration/checker"
"github.com/docker/libnetwork/driverapi"
remoteapi "github.com/docker/libnetwork/drivers/remote/api"
"github.com/docker/libnetwork/netlabel"
"github.com/go-check/check"
)
const dummyNetworkDriver = "dummy-network-driver"
var remoteDriverNetworkRequest remoteapi.CreateNetworkRequest
func init() {
check.Suite(&DockerNetworkSuite{
ds: &DockerSuite{},
})
}
type DockerNetworkSuite struct {
server *httptest.Server
ds *DockerSuite
d *Daemon
}
func (s *DockerNetworkSuite) SetUpTest(c *check.C) {
s.d = NewDaemon(c)
}
func (s *DockerNetworkSuite) TearDownTest(c *check.C) {
s.d.Stop()
s.ds.TearDownTest(c)
}
func (s *DockerNetworkSuite) SetUpSuite(c *check.C) {
mux := http.NewServeMux()
s.server = httptest.NewServer(mux)
c.Assert(s.server, check.NotNil, check.Commentf("Failed to start a HTTP Server"))
mux.HandleFunc("/Plugin.Activate", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
fmt.Fprintf(w, `{"Implements": ["%s"]}`, driverapi.NetworkPluginEndpointType)
})
mux.HandleFunc(fmt.Sprintf("/%s.GetCapabilities", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
fmt.Fprintf(w, `{"Scope":"local"}`)
})
mux.HandleFunc(fmt.Sprintf("/%s.CreateNetwork", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
err := json.NewDecoder(r.Body).Decode(&remoteDriverNetworkRequest)
if err != nil {
http.Error(w, "Unable to decode JSON payload: "+err.Error(), http.StatusBadRequest)
return
}
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
fmt.Fprintf(w, "null")
})
mux.HandleFunc(fmt.Sprintf("/%s.DeleteNetwork", driverapi.NetworkPluginEndpointType), func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "application/vnd.docker.plugins.v1+json")
fmt.Fprintf(w, "null")
})
err := os.MkdirAll("/etc/docker/plugins", 0755)
c.Assert(err, checker.IsNil)
fileName := fmt.Sprintf("/etc/docker/plugins/%s.spec", dummyNetworkDriver)
err = ioutil.WriteFile(fileName, []byte(s.server.URL), 0644)
c.Assert(err, checker.IsNil)
}
func (s *DockerNetworkSuite) TearDownSuite(c *check.C) {
if s.server == nil {
return
}
s.server.Close()
err := os.RemoveAll("/etc/docker/plugins")
c.Assert(err, checker.IsNil)
}
func assertNwIsAvailable(c *check.C, name string) {
if !isNwPresent(c, name) {
c.Fatalf("Network %s not found in network ls o/p", name)
}
}
func assertNwNotAvailable(c *check.C, name string) {
if isNwPresent(c, name) {
c.Fatalf("Found network %s in network ls o/p", name)
}
}
func isNwPresent(c *check.C, name string) bool {
out, _ := dockerCmd(c, "network", "ls")
lines := strings.Split(out, "\n")
for i := 1; i < len(lines)-1; i++ {
if strings.Contains(lines[i], name) {
return true
}
}
return false
}
func getNwResource(c *check.C, name string) *types.NetworkResource {
out, _ := dockerCmd(c, "network", "inspect", name)
nr := []types.NetworkResource{}
err := json.Unmarshal([]byte(out), &nr)
c.Assert(err, check.IsNil)
return &nr[0]
}
func (s *DockerNetworkSuite) TestDockerNetworkLsDefault(c *check.C) {
defaults := []string{"bridge", "host", "none"}
for _, nn := range defaults {
assertNwIsAvailable(c, nn)
}
}
func (s *DockerNetworkSuite) TestDockerNetworkCreateDelete(c *check.C) {
dockerCmd(c, "network", "create", "test")
assertNwIsAvailable(c, "test")
dockerCmd(c, "network", "rm", "test")
assertNwNotAvailable(c, "test")
}
func (s *DockerSuite) TestDockerNetworkDeleteNotExists(c *check.C) {
out, _, err := dockerCmdWithError("network", "rm", "test")
c.Assert(err, checker.NotNil, check.Commentf("%v", out))
}
func (s *DockerSuite) TestDockerInspectMultipleNetwork(c *check.C) {
out, _ := dockerCmd(c, "network", "inspect", "host", "none")
networkResources := []types.NetworkResource{}
err := json.Unmarshal([]byte(out), &networkResources)
c.Assert(err, check.IsNil)
c.Assert(networkResources, checker.HasLen, 2)
// Should print an error, return an exitCode 1 *but* should print the host network
out, exitCode, err := dockerCmdWithError("network", "inspect", "host", "nonexistent")
c.Assert(err, checker.NotNil)
c.Assert(exitCode, checker.Equals, 1)
c.Assert(out, checker.Contains, "Error: No such network: nonexistent")
networkResources = []types.NetworkResource{}
inspectOut := strings.SplitN(out, "\n", 2)[1]
err = json.Unmarshal([]byte(inspectOut), &networkResources)
c.Assert(networkResources, checker.HasLen, 1)
// Should print an error and return an exitCode, nothing else
out, exitCode, err = dockerCmdWithError("network", "inspect", "nonexistent")
c.Assert(err, checker.NotNil)
c.Assert(exitCode, checker.Equals, 1)
c.Assert(out, checker.Contains, "Error: No such network: nonexistent")
}
func (s *DockerNetworkSuite) TestDockerNetworkConnectDisconnect(c *check.C) {
dockerCmd(c, "network", "create", "test")
assertNwIsAvailable(c, "test")
nr := getNwResource(c, "test")
c.Assert(nr.Name, checker.Equals, "test")
c.Assert(len(nr.Containers), checker.Equals, 0)
// run a container
out, _ := dockerCmd(c, "run", "-d", "--name", "test", "busybox", "top")
c.Assert(waitRun("test"), check.IsNil)
containerID := strings.TrimSpace(out)
// connect the container to the test network
dockerCmd(c, "network", "connect", "test", containerID)
// inspect the network to make sure container is connected
nr = getNetworkResource(c, nr.ID)
c.Assert(len(nr.Containers), checker.Equals, 1)
c.Assert(nr.Containers[containerID], check.NotNil)
// check if container IP matches network inspect
ip, _, err := net.ParseCIDR(nr.Containers[containerID].IPv4Address)
c.Assert(err, check.IsNil)
containerIP := findContainerIP(c, "test")
c.Assert(ip.String(), checker.Equals, containerIP)
// disconnect container from the network
dockerCmd(c, "network", "disconnect", "test", containerID)
nr = getNwResource(c, "test")
c.Assert(nr.Name, checker.Equals, "test")
c.Assert(len(nr.Containers), checker.Equals, 0)
// check if network connect fails for inactive containers
dockerCmd(c, "stop", containerID)
_, _, err = dockerCmdWithError("network", "connect", "test", containerID)
c.Assert(err, check.NotNil)
dockerCmd(c, "network", "rm", "test")
assertNwNotAvailable(c, "test")
}
func (s *DockerNetworkSuite) TestDockerNetworkIpamMultipleNetworks(c *check.C) {
// test0 bridge network
dockerCmd(c, "network", "create", "--subnet=192.168.0.0/16", "test1")
assertNwIsAvailable(c, "test1")
// test2 bridge network does not overlap
dockerCmd(c, "network", "create", "--subnet=192.169.0.0/16", "test2")
assertNwIsAvailable(c, "test2")
// for networks w/o ipam specified, docker will choose proper non-overlapping subnets
dockerCmd(c, "network", "create", "test3")
assertNwIsAvailable(c, "test3")
dockerCmd(c, "network", "create", "test4")
assertNwIsAvailable(c, "test4")
dockerCmd(c, "network", "create", "test5")
assertNwIsAvailable(c, "test5")
// test network with multiple subnets
// bridge network doesnt support multiple subnets. hence, use a dummy driver that supports
dockerCmd(c, "network", "create", "-d", dummyNetworkDriver, "--subnet=192.168.0.0/16", "--subnet=192.170.0.0/16", "test6")
assertNwIsAvailable(c, "test6")
// test network with multiple subnets with valid ipam combinations
// also check same subnet across networks when the driver supports it.
dockerCmd(c, "network", "create", "-d", dummyNetworkDriver,
"--subnet=192.168.0.0/16", "--subnet=192.170.0.0/16",
"--gateway=192.168.0.100", "--gateway=192.170.0.100",
"--ip-range=192.168.1.0/24",
"--aux-address", "a=192.168.1.5", "--aux-address", "b=192.168.1.6",
"--aux-address", "a=192.170.1.5", "--aux-address", "b=192.170.1.6",
"test7")
assertNwIsAvailable(c, "test7")
// cleanup
for i := 1; i < 8; i++ {
dockerCmd(c, "network", "rm", fmt.Sprintf("test%d", i))
}
}
func (s *DockerNetworkSuite) TestDockerNetworkInspect(c *check.C) {
// if unspecified, network gateway will be selected from inside preferred pool
dockerCmd(c, "network", "create", "--driver=bridge", "--subnet=172.28.0.0/16", "--ip-range=172.28.5.0/24", "--gateway=172.28.5.254", "br0")
assertNwIsAvailable(c, "br0")
nr := getNetworkResource(c, "br0")
c.Assert(nr.Driver, checker.Equals, "bridge")
c.Assert(nr.Scope, checker.Equals, "local")
c.Assert(nr.IPAM.Driver, checker.Equals, "default")
c.Assert(len(nr.IPAM.Config), checker.Equals, 1)
c.Assert(nr.IPAM.Config[0].Subnet, checker.Equals, "172.28.0.0/16")
c.Assert(nr.IPAM.Config[0].IPRange, checker.Equals, "172.28.5.0/24")
c.Assert(nr.IPAM.Config[0].Gateway, checker.Equals, "172.28.5.254")
dockerCmd(c, "network", "rm", "br0")
}
func (s *DockerNetworkSuite) TestDockerNetworkIpamInvalidCombinations(c *check.C) {
// network with ip-range out of subnet range
_, _, err := dockerCmdWithError("network", "create", "--subnet=192.168.0.0/16", "--ip-range=192.170.0.0/16", "test")
c.Assert(err, check.NotNil)
// network with multiple gateways for a single subnet
_, _, err = dockerCmdWithError("network", "create", "--subnet=192.168.0.0/16", "--gateway=192.168.0.1", "--gateway=192.168.0.2", "test")
c.Assert(err, check.NotNil)
// Multiple overlaping subnets in the same network must fail
_, _, err = dockerCmdWithError("network", "create", "--subnet=192.168.0.0/16", "--subnet=192.168.1.0/16", "test")
c.Assert(err, check.NotNil)
// overlapping subnets across networks must fail
// create a valid test0 network
dockerCmd(c, "network", "create", "--subnet=192.168.0.0/16", "test0")
assertNwIsAvailable(c, "test0")
// create an overlapping test1 network
_, _, err = dockerCmdWithError("network", "create", "--subnet=192.168.128.0/17", "test1")
c.Assert(err, check.NotNil)
dockerCmd(c, "network", "rm", "test0")
}
func (s *DockerNetworkSuite) TestDockerNetworkDriverOptions(c *check.C) {
dockerCmd(c, "network", "create", "-d", dummyNetworkDriver, "-o", "opt1=drv1", "-o", "opt2=drv2", "testopt")
assertNwIsAvailable(c, "testopt")
gopts := remoteDriverNetworkRequest.Options[netlabel.GenericData]
c.Assert(gopts, checker.NotNil)
opts, ok := gopts.(map[string]interface{})
c.Assert(ok, checker.Equals, true)
c.Assert(opts["opt1"], checker.Equals, "drv1")
c.Assert(opts["opt2"], checker.Equals, "drv2")
dockerCmd(c, "network", "rm", "testopt")
}