package integration import ( "encoding/json" "io/ioutil" "net" "os" "strings" cniversion "github.com/containernetworking/cni/pkg/version" "github.com/containers/podman/v2/pkg/network" . "github.com/containers/podman/v2/test/utils" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" "github.com/pkg/errors" ) var ErrPluginNotFound = errors.New("plugin not found") func findPluginByName(plugins interface{}, pluginType string) (interface{}, error) { for _, p := range plugins.([]interface{}) { r := p.(map[string]interface{}) if pluginType == r["type"] { return p, nil } } return nil, errors.Wrap(ErrPluginNotFound, pluginType) } func genericPluginsToBridge(plugins interface{}, pluginType string) (network.HostLocalBridge, error) { var bridge network.HostLocalBridge generic, err := findPluginByName(plugins, pluginType) if err != nil { return bridge, err } b, err := json.Marshal(generic) if err != nil { return bridge, err } err = json.Unmarshal(b, &bridge) return bridge, err } func genericPluginsToPortMap(plugins interface{}, pluginType string) (network.PortMapConfig, error) { var portMap network.PortMapConfig generic, err := findPluginByName(plugins, "portmap") if err != nil { return portMap, err } b, err := json.Marshal(generic) if err != nil { return portMap, err } err = json.Unmarshal(b, &portMap) return portMap, err } func (p *PodmanTestIntegration) removeCNINetwork(name string) { session := p.Podman([]string{"network", "rm", "-f", name}) session.WaitWithDefaultTimeout() Expect(session.ExitCode()).To(BeZero()) } func removeNetworkDevice(name string) { session := SystemExec("ip", []string{"link", "delete", name}) session.WaitWithDefaultTimeout() } var _ = Describe("Podman network create", func() { var ( tempdir string err error podmanTest *PodmanTestIntegration ) BeforeEach(func() { SkipIfRootless() tempdir, err = CreateTempDirInTempDir() if err != nil { os.Exit(1) } podmanTest = PodmanTestCreate(tempdir) podmanTest.Setup() podmanTest.SeedImages() }) AfterEach(func() { podmanTest.Cleanup() f := CurrentGinkgoTestDescription() processTestResult(f) }) It("podman network create with no input", func() { var result network.NcList nc := podmanTest.Podman([]string{"network", "create"}) nc.WaitWithDefaultTimeout() Expect(nc.ExitCode()).To(BeZero()) fileContent, err := ioutil.ReadFile(nc.OutputToString()) Expect(err).To(BeNil()) err = json.Unmarshal(fileContent, &result) Expect(err).To(BeNil()) defer podmanTest.removeCNINetwork(result["name"].(string)) Expect(result["cniVersion"]).To(Equal(cniversion.Current())) Expect(strings.HasPrefix(result["name"].(string), "cni-podman")).To(BeTrue()) bridgePlugin, err := genericPluginsToBridge(result["plugins"], "bridge") Expect(err).To(BeNil()) portMapPlugin, err := genericPluginsToPortMap(result["plugins"], "portmap") Expect(err).To(BeNil()) Expect(bridgePlugin.IPAM.Routes[0].Dest).To(Equal("0.0.0.0/0")) Expect(bridgePlugin.IsGW).To(BeTrue()) Expect(bridgePlugin.IPMasq).To(BeTrue()) Expect(portMapPlugin.Capabilities["portMappings"]).To(BeTrue()) }) It("podman network create with name", func() { var ( results []network.NcList ) nc := podmanTest.Podman([]string{"network", "create", "newname"}) nc.WaitWithDefaultTimeout() Expect(nc.ExitCode()).To(BeZero()) defer podmanTest.removeCNINetwork("newname") inspect := podmanTest.Podman([]string{"network", "inspect", "newname"}) inspect.WaitWithDefaultTimeout() err := json.Unmarshal([]byte(inspect.OutputToString()), &results) Expect(err).To(BeNil()) result := results[0] Expect(result["name"]).To(Equal("newname")) }) It("podman network create with name and subnet", func() { SkipIfRemote() var ( results []network.NcList ) nc := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.12.0/24", "newnetwork"}) nc.WaitWithDefaultTimeout() Expect(nc.ExitCode()).To(BeZero()) defer podmanTest.removeCNINetwork("newnetwork") // Inspect the network configuration inspect := podmanTest.Podman([]string{"network", "inspect", "newnetwork"}) inspect.WaitWithDefaultTimeout() // JSON the network configuration into something usable err := json.Unmarshal([]byte(inspect.OutputToString()), &results) Expect(err).To(BeNil()) result := results[0] Expect(result["name"]).To(Equal("newnetwork")) // JSON the bridge info bridgePlugin, err := genericPluginsToBridge(result["plugins"], "bridge") Expect(err).To(BeNil()) // Once a container executes a new network, the nic will be created. We should clean those up // best we can defer removeNetworkDevice(bridgePlugin.BrName) try := podmanTest.Podman([]string{"run", "-it", "--rm", "--network", "newnetwork", ALPINE, "sh", "-c", "ip addr show eth0 | awk ' /inet / {print $2}'"}) try.WaitWithDefaultTimeout() _, subnet, err := net.ParseCIDR("10.11.12.0/24") Expect(err).To(BeNil()) // Note this is an IPv4 test only! containerIP, _, err := net.ParseCIDR(try.OutputToString()) Expect(err).To(BeNil()) // Ensure that the IP the container got is within the subnet the user asked for Expect(subnet.Contains(containerIP)).To(BeTrue()) }) It("podman network create with invalid subnet", func() { nc := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.12.0/17000", "fail"}) nc.WaitWithDefaultTimeout() Expect(nc).To(ExitWithError()) }) It("podman network create with invalid IP", func() { nc := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.0/17000", "fail"}) nc.WaitWithDefaultTimeout() Expect(nc).To(ExitWithError()) }) It("podman network create with invalid gateway for subnet", func() { nc := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.12.0/24", "--gateway", "192.168.1.1", "fail"}) nc.WaitWithDefaultTimeout() Expect(nc).To(ExitWithError()) }) It("podman network create two networks with same name should fail", func() { nc := podmanTest.Podman([]string{"network", "create", "samename"}) nc.WaitWithDefaultTimeout() Expect(nc.ExitCode()).To(BeZero()) defer podmanTest.removeCNINetwork("samename") ncFail := podmanTest.Podman([]string{"network", "create", "samename"}) ncFail.WaitWithDefaultTimeout() Expect(ncFail).To(ExitWithError()) }) It("podman network create with invalid network name", func() { nc := podmanTest.Podman([]string{"network", "create", "foo "}) nc.WaitWithDefaultTimeout() Expect(nc).To(ExitWithError()) }) })