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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())
})
})
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