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-rw-r--r--cmd/podman/common/netflags.go34
-rw-r--r--cmd/podman/pods/create.go28
-rw-r--r--docs/source/markdown/podman-create.1.md2
-rw-r--r--docs/source/markdown/podman-run.1.md2
-rw-r--r--pkg/specgen/namespaces.go6
-rw-r--r--test/e2e/pod_create_test.go20
-rw-r--r--test/e2e/run_networking_test.go29
7 files changed, 71 insertions, 50 deletions
diff --git a/cmd/podman/common/netflags.go b/cmd/podman/common/netflags.go
index cae52ccaa..898d65bd0 100644
--- a/cmd/podman/common/netflags.go
+++ b/cmd/podman/common/netflags.go
@@ -59,8 +59,8 @@ func DefineNetFlags(cmd *cobra.Command) {
_ = cmd.RegisterFlagCompletionFunc(macAddressFlagName, completion.AutocompleteNone)
networkFlagName := "network"
- netFlags.String(
- networkFlagName, containerConfig.NetNS(),
+ netFlags.StringArray(
+ networkFlagName, []string{containerConfig.NetNS()},
"Connect a container to a network",
)
_ = cmd.RegisterFlagCompletionFunc(networkFlagName, AutocompleteNetworks)
@@ -194,25 +194,29 @@ func NetFlagsToNetOptions(cmd *cobra.Command) (*entities.NetOptions, error) {
}
if cmd.Flags().Changed("network") {
- network, err := cmd.Flags().GetString("network")
+ networks, err := cmd.Flags().GetStringArray("network")
if err != nil {
return nil, err
}
+ for i, network := range networks {
+ parts := strings.SplitN(network, ":", 2)
- parts := strings.SplitN(network, ":", 2)
-
- ns, cniNets, err := specgen.ParseNetworkNamespace(network)
- if err != nil {
- return nil, err
- }
+ ns, cniNets, err := specgen.ParseNetworkNamespace(network)
+ if err != nil {
+ return nil, err
+ }
+ if i > 0 && (len(cniNets) == 0 || len(opts.CNINetworks) == 0) {
+ return nil, errors.Errorf("network conflict between type %s and %s", opts.Network.NSMode, ns.NSMode)
+ }
- if len(parts) > 1 {
- opts.NetworkOptions = make(map[string][]string)
- opts.NetworkOptions[parts[0]] = strings.Split(parts[1], ",")
- cniNets = nil
+ if len(parts) > 1 {
+ opts.NetworkOptions = make(map[string][]string)
+ opts.NetworkOptions[parts[0]] = strings.Split(parts[1], ",")
+ cniNets = nil
+ }
+ opts.Network = ns
+ opts.CNINetworks = append(opts.CNINetworks, cniNets...)
}
- opts.Network = ns
- opts.CNINetworks = cniNets
}
aliases, err := cmd.Flags().GetStringSlice("network-alias")
diff --git a/cmd/podman/pods/create.go b/cmd/podman/pods/create.go
index d997ea344..5b0aa2fe4 100644
--- a/cmd/podman/pods/create.go
+++ b/cmd/podman/pods/create.go
@@ -171,33 +171,7 @@ func create(cmd *cobra.Command, args []string) error {
if err != nil {
return err
}
- createOptions.Net.Network = specgen.Namespace{}
- if cmd.Flag("network").Changed {
- netInput, err := cmd.Flags().GetString("network")
- if err != nil {
- return err
- }
- parts := strings.SplitN(netInput, ":", 2)
-
- n := specgen.Namespace{}
- switch {
- case netInput == "bridge":
- n.NSMode = specgen.Bridge
- case netInput == "host":
- n.NSMode = specgen.Host
- case netInput == "slirp4netns", strings.HasPrefix(netInput, "slirp4netns:"):
- n.NSMode = specgen.Slirp
- if len(parts) > 1 {
- createOptions.Net.NetworkOptions = make(map[string][]string)
- createOptions.Net.NetworkOptions[parts[0]] = strings.Split(parts[1], ",")
- }
- default:
- // Container and NS mode are presently unsupported
- n.NSMode = specgen.Bridge
- createOptions.Net.CNINetworks = strings.Split(netInput, ",")
- }
- createOptions.Net.Network = n
- }
+
if len(createOptions.Net.PublishPorts) > 0 {
if !createOptions.Infra {
return errors.Errorf("you must have an infra container to publish port bindings to the host")
diff --git a/docs/source/markdown/podman-create.1.md b/docs/source/markdown/podman-create.1.md
index 8251ba3b6..eb73609d4 100644
--- a/docs/source/markdown/podman-create.1.md
+++ b/docs/source/markdown/podman-create.1.md
@@ -588,7 +588,7 @@ Valid _mode_ values are:
- **none**: no networking;
- **container:**_id_: reuse another container's network stack;
- **host**: use the Podman host network stack. Note: the host mode gives the container full access to local system services such as D-bus and is therefore considered insecure;
-- _network-id_: connect to a user-defined network, multiple networks should be comma separated;
+- **cni-network**: connect to a user-defined network, multiple networks should be comma-separated or they can be specified with multiple uses of the **--network** option;
- **ns:**_path_: path to a network namespace to join;
- **private**: create a new namespace for the container (default)
- **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options:
diff --git a/docs/source/markdown/podman-run.1.md b/docs/source/markdown/podman-run.1.md
index bc3d5a8bb..184c12acd 100644
--- a/docs/source/markdown/podman-run.1.md
+++ b/docs/source/markdown/podman-run.1.md
@@ -614,7 +614,7 @@ Valid _mode_ values are:
- **none**: no networking;
- **container:**_id_: reuse another container's network stack;
- **host**: use the Podman host network stack. Note: the host mode gives the container full access to local system services such as D-bus and is therefore considered insecure;
-- _network-id_: connect to a user-defined network, multiple networks should be comma separated;
+- **cni-network**: connect to a user-defined network, multiple networks should be comma-separated or they can be specified with multiple uses of the **--network** option;
- **ns:**_path_: path to a network namespace to join;
- **private**: create a new namespace for the container (default)
- **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options:
diff --git a/pkg/specgen/namespaces.go b/pkg/specgen/namespaces.go
index 90c56d366..11108a5c1 100644
--- a/pkg/specgen/namespaces.go
+++ b/pkg/specgen/namespaces.go
@@ -272,16 +272,10 @@ func ParseNetworkNamespace(ns string) (Namespace, []string, error) {
toReturn.NSMode = Private
case strings.HasPrefix(ns, "ns:"):
split := strings.SplitN(ns, ":", 2)
- if len(split) != 2 {
- return toReturn, nil, errors.Errorf("must provide a path to a namespace when specifying ns:")
- }
toReturn.NSMode = Path
toReturn.Value = split[1]
case strings.HasPrefix(ns, "container:"):
split := strings.SplitN(ns, ":", 2)
- if len(split) != 2 {
- return toReturn, nil, errors.Errorf("must provide name or ID or a container when specifying container:")
- }
toReturn.NSMode = FromContainer
toReturn.Value = split[1]
default:
diff --git a/test/e2e/pod_create_test.go b/test/e2e/pod_create_test.go
index be0a2f6f0..ccfbcefae 100644
--- a/test/e2e/pod_create_test.go
+++ b/test/e2e/pod_create_test.go
@@ -9,6 +9,7 @@ import (
"github.com/containers/podman/v2/pkg/rootless"
. "github.com/containers/podman/v2/test/utils"
+ "github.com/containers/storage/pkg/stringid"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
@@ -476,4 +477,23 @@ entrypoint ["/fromimage"]
Expect(status3.ExitCode()).To(Equal(0))
Expect(strings.Contains(status3.OutputToString(), "Degraded")).To(BeTrue())
})
+
+ It("podman create pod invalid network config", func() {
+ net1 := "n1" + stringid.GenerateNonCryptoID()
+ session := podmanTest.Podman([]string{"network", "create", net1})
+ session.WaitWithDefaultTimeout()
+ defer podmanTest.removeCNINetwork(net1)
+ Expect(session.ExitCode()).To(BeZero())
+
+ session = podmanTest.Podman([]string{"pod", "create", "--network", "host", "--network", net1})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(125))
+ Expect(session.ErrorToString()).To(ContainSubstring("host"))
+ Expect(session.ErrorToString()).To(ContainSubstring("bridge"))
+
+ session = podmanTest.Podman([]string{"pod", "create", "--network", "container:abc"})
+ session.WaitWithDefaultTimeout()
+ Expect(session.ExitCode()).To(Equal(125))
+ Expect(session.ErrorToString()).To(ContainSubstring("pods presently do not support network mode container"))
+ })
})
diff --git a/test/e2e/run_networking_test.go b/test/e2e/run_networking_test.go
index 3e80e953e..1d416498c 100644
--- a/test/e2e/run_networking_test.go
+++ b/test/e2e/run_networking_test.go
@@ -665,4 +665,33 @@ var _ = Describe("Podman run networking", func() {
session.WaitWithDefaultTimeout()
Expect(session.ExitCode()).To(BeZero())
})
+
+ It("podman run with multiple networks", func() {
+ net1 := "n1" + stringid.GenerateNonCryptoID()
+ session := podmanTest.Podman([]string{"network", "create", net1})
+ session.WaitWithDefaultTimeout()
+ defer podmanTest.removeCNINetwork(net1)
+ Expect(session.ExitCode()).To(BeZero())
+
+ net2 := "n2" + stringid.GenerateNonCryptoID()
+ session = podmanTest.Podman([]string{"network", "create", net2})
+ session.WaitWithDefaultTimeout()
+ defer podmanTest.removeCNINetwork(net2)
+ Expect(session.ExitCode()).To(BeZero())
+
+ run := podmanTest.Podman([]string{"run", "--network", net1, "--network", net2, ALPINE, "ip", "-o", "-4", "addr"})
+ run.WaitWithDefaultTimeout()
+ Expect(run.ExitCode()).To(BeZero())
+ Expect(len(run.OutputToStringArray())).To(Equal(3))
+ Expect(run.OutputToString()).To(ContainSubstring("lo"))
+ Expect(run.OutputToString()).To(ContainSubstring("eth0"))
+ Expect(run.OutputToString()).To(ContainSubstring("eth1"))
+
+ //invalid config network host and cni should fail
+ run = podmanTest.Podman([]string{"run", "--network", "host", "--network", net2, ALPINE, "ip", "-o", "-4", "addr"})
+ run.WaitWithDefaultTimeout()
+ Expect(run.ExitCode()).To(Equal(125))
+ Expect(run.ErrorToString()).To(ContainSubstring("host"))
+ Expect(run.ErrorToString()).To(ContainSubstring("bridge"))
+ })
})
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-09-26 22:01:17 +0000