spiegel_podman/test/e2e/network_create_test.go
Paul Holzinger c1cd512cb8 Use random network names in the e2e tests
Unlike the container storage all e2e test are using the same cni
config directory. This causes problems if the network name already
exists. Using random names will make the second run pass even if the
first failed. This is only done to prevent full CI failures.

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
2021-01-21 11:27:56 +01:00

378 lines
13 KiB
Go

package integration
import (
"encoding/json"
"io/ioutil"
"net"
"os"
"strings"
cniversion "github.com/containernetworking/cni/pkg/version"
"github.com/containers/podman/v2/libpod/network"
. "github.com/containers/podman/v2/test/utils"
"github.com/containers/storage/pkg/stringid"
. "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 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() {
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(bridgePlugin.IPAM.Ranges[0][0].Gateway).ToNot(BeEmpty())
Expect(portMapPlugin.Capabilities["portMappings"]).To(BeTrue())
})
It("podman network create with name", func() {
var (
results []network.NcList
)
netName := "inspectnet-" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", netName})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(netName)
Expect(nc.ExitCode()).To(BeZero())
inspect := podmanTest.Podman([]string{"network", "inspect", netName})
inspect.WaitWithDefaultTimeout()
err := json.Unmarshal([]byte(inspect.OutputToString()), &results)
Expect(err).To(BeNil())
result := results[0]
Expect(result["name"]).To(Equal(netName))
})
It("podman network create with name and subnet", func() {
var (
results []network.NcList
)
netName := "subnet-" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.12.0/24", netName})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(netName)
Expect(nc.ExitCode()).To(BeZero())
// Inspect the network configuration
inspect := podmanTest.Podman([]string{"network", "inspect", netName})
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(netName))
// JSON the bridge info
bridgePlugin, err := genericPluginsToBridge(result["plugins"], "bridge")
Expect(err).To(BeNil())
// check that gateway is added to config
Expect(bridgePlugin.IPAM.Ranges[0][0].Gateway).To(Equal("10.11.12.1"))
// 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", netName, 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 name and IPv6 subnet", func() {
SkipIfRootless("FIXME It needs the ip6tables modules loaded")
var (
results []network.NcList
)
netName := "ipv6-" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", "--subnet", "fd00:1:2:3:4::/64", netName})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(netName)
Expect(nc.ExitCode()).To(BeZero())
// Inspect the network configuration
inspect := podmanTest.Podman([]string{"network", "inspect", netName})
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(netName))
// JSON the bridge info
bridgePlugin, err := genericPluginsToBridge(result["plugins"], "bridge")
Expect(err).To(BeNil())
Expect(bridgePlugin.IPAM.Routes[0].Dest).To(Equal("::/0"))
// 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", netName, ALPINE, "sh", "-c", "ip addr show eth0 | grep global | awk ' /inet6 / {print $2}'"})
try.WaitWithDefaultTimeout()
_, subnet, err := net.ParseCIDR("fd00:1:2:3:4::/64")
Expect(err).To(BeNil())
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 name and IPv6 flag (dual-stack)", func() {
SkipIfRootless("FIXME It needs the ip6tables modules loaded")
var (
results []network.NcList
)
netName := "dual-" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", "--subnet", "fd00:4:3:2:1::/64", "--ipv6", netName})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(netName)
Expect(nc.ExitCode()).To(BeZero())
// Inspect the network configuration
inspect := podmanTest.Podman([]string{"network", "inspect", netName})
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(netName))
// JSON the bridge info
bridgePlugin, err := genericPluginsToBridge(result["plugins"], "bridge")
Expect(err).To(BeNil())
Expect(bridgePlugin.IPAM.Routes[0].Dest).To(Equal("::/0"))
Expect(bridgePlugin.IPAM.Routes[1].Dest).To(Equal("0.0.0.0/0"))
// 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", netName, ALPINE, "sh", "-c", "ip addr show eth0 | grep global | awk ' /inet6 / {print $2}'"})
try.WaitWithDefaultTimeout()
_, subnet, err := net.ParseCIDR("fd00:4:3:2:1::/64")
Expect(err).To(BeNil())
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())
// verify the container has an IPv4 address too (the IPv4 subnet is autogenerated)
try = podmanTest.Podman([]string{"run", "-it", "--rm", "--network", netName, ALPINE, "sh", "-c", "ip addr show eth0 | awk ' /inet / {print $2}'"})
try.WaitWithDefaultTimeout()
containerIP, _, err = net.ParseCIDR(try.OutputToString())
Expect(err).To(BeNil())
Expect(containerIP.To4()).To(Not(BeNil()))
})
It("podman network create with invalid subnet", func() {
nc := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.12.0/17000", stringid.GenerateNonCryptoID()})
nc.WaitWithDefaultTimeout()
Expect(nc).To(ExitWithError())
})
It("podman network create with ipv4 subnet and ipv6 flag", func() {
nc := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.12.0/24", "--ipv6", stringid.GenerateNonCryptoID()})
nc.WaitWithDefaultTimeout()
Expect(nc).To(ExitWithError())
})
It("podman network create with empty subnet and ipv6 flag", func() {
nc := podmanTest.Podman([]string{"network", "create", "--ipv6", stringid.GenerateNonCryptoID()})
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", stringid.GenerateNonCryptoID()})
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", stringid.GenerateNonCryptoID()})
nc.WaitWithDefaultTimeout()
Expect(nc).To(ExitWithError())
})
It("podman network create two networks with same name should fail", func() {
netName := "same-" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", netName})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(netName)
Expect(nc.ExitCode()).To(BeZero())
ncFail := podmanTest.Podman([]string{"network", "create", netName})
ncFail.WaitWithDefaultTimeout()
Expect(ncFail).To(ExitWithError())
})
It("podman network create two networks with same subnet should fail", func() {
netName1 := "sub1-" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.13.0/24", netName1})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(netName1)
Expect(nc.ExitCode()).To(BeZero())
netName2 := "sub2-" + stringid.GenerateNonCryptoID()
ncFail := podmanTest.Podman([]string{"network", "create", "--subnet", "10.11.13.0/24", netName2})
ncFail.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(netName2)
Expect(ncFail).To(ExitWithError())
})
It("podman network create two IPv6 networks with same subnet should fail", func() {
SkipIfRootless("FIXME It needs the ip6tables modules loaded")
netName1 := "subipv61-" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", "--subnet", "fd00:4:4:4:4::/64", "--ipv6", netName1})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(netName1)
Expect(nc.ExitCode()).To(BeZero())
netName2 := "subipv62-" + stringid.GenerateNonCryptoID()
ncFail := podmanTest.Podman([]string{"network", "create", "--subnet", "fd00:4:4:4:4::/64", "--ipv6", netName2})
ncFail.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(netName2)
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())
})
It("podman network create with mtu option", func() {
net := "mtu-test" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", "--opt", "mtu=9000", net})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(net)
Expect(nc.ExitCode()).To(BeZero())
nc = podmanTest.Podman([]string{"network", "inspect", net})
nc.WaitWithDefaultTimeout()
Expect(nc.ExitCode()).To(BeZero())
Expect(nc.OutputToString()).To(ContainSubstring(`"mtu": 9000,`))
})
It("podman network create with vlan option", func() {
net := "vlan-test" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", "--opt", "vlan=9", net})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(net)
Expect(nc.ExitCode()).To(BeZero())
nc = podmanTest.Podman([]string{"network", "inspect", net})
nc.WaitWithDefaultTimeout()
Expect(nc.ExitCode()).To(BeZero())
Expect(nc.OutputToString()).To(ContainSubstring(`"vlan": 9`))
})
It("podman network create with invalid option", func() {
net := "invalid-test" + stringid.GenerateNonCryptoID()
nc := podmanTest.Podman([]string{"network", "create", "--opt", "foo=bar", net})
nc.WaitWithDefaultTimeout()
defer podmanTest.removeCNINetwork(net)
Expect(nc).To(ExitWithError())
})
})