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-rw-r--r--pkg/specgen/container_validate.go6
-rw-r--r--pkg/specgen/generate/namespaces.go12
-rw-r--r--pkg/specgen/generate/pod_create.go9
-rw-r--r--pkg/specgen/namespaces.go65
-rw-r--r--pkg/specgen/namespaces_test.go25
5 files changed, 25 insertions, 92 deletions
diff --git a/pkg/specgen/container_validate.go b/pkg/specgen/container_validate.go
index 532a2094f..5616a4511 100644
--- a/pkg/specgen/container_validate.go
+++ b/pkg/specgen/container_validate.go
@@ -183,10 +183,12 @@ func (s *SpecGenerator) Validate() error {
}
// Set defaults if network info is not provided
- if s.NetNS.NSMode == "" {
- s.NetNS.NSMode = Bridge
+ // when we are rootless we default to slirp4netns
+ if s.NetNS.IsPrivate() || s.NetNS.IsDefault() {
if rootless.IsRootless() {
s.NetNS.NSMode = Slirp
+ } else {
+ s.NetNS.NSMode = Bridge
}
}
if err := validateNetNS(&s.NetNS); err != nil {
diff --git a/pkg/specgen/generate/namespaces.go b/pkg/specgen/generate/namespaces.go
index 37d561ec2..4dd6b3eaf 100644
--- a/pkg/specgen/generate/namespaces.go
+++ b/pkg/specgen/generate/namespaces.go
@@ -236,10 +236,12 @@ func namespaceOptions(s *specgen.SpecGenerator, rt *libpod.Runtime, pod *libpod.
toReturn = append(toReturn, libpod.WithCgroupsMode(s.CgroupsMode))
}
- // Net
- // TODO validate CNINetworks, StaticIP, StaticIPv6 are only set if we
- // are in bridge mode.
postConfigureNetNS := !s.UserNS.IsHost()
+ // when we are rootless we default to slirp4netns
+ if rootless.IsRootless() && (s.NetNS.IsPrivate() || s.NetNS.IsDefault()) {
+ s.NetNS.NSMode = specgen.Slirp
+ }
+
switch s.NetNS.NSMode {
case specgen.FromPod:
if pod == nil || infraCtr == nil {
@@ -262,9 +264,7 @@ func namespaceOptions(s *specgen.SpecGenerator, rt *libpod.Runtime, pod *libpod.
val = fmt.Sprintf("slirp4netns:%s", s.NetNS.Value)
}
toReturn = append(toReturn, libpod.WithNetNS(portMappings, expose, postConfigureNetNS, val, nil))
- case specgen.Private:
- fallthrough
- case specgen.Bridge:
+ case specgen.Bridge, specgen.Private, specgen.Default:
portMappings, expose, err := createPortMappings(s, imageData)
if err != nil {
return nil, err
diff --git a/pkg/specgen/generate/pod_create.go b/pkg/specgen/generate/pod_create.go
index 83730e657..fdc98ccc2 100644
--- a/pkg/specgen/generate/pod_create.go
+++ b/pkg/specgen/generate/pod_create.go
@@ -225,6 +225,9 @@ func MapSpec(p *specgen.PodSpecGenerator) (*specgen.SpecGenerator, error) {
case specgen.Bridge:
p.InfraContainerSpec.NetNS.NSMode = specgen.Bridge
logrus.Debugf("Pod using bridge network mode")
+ case specgen.Private:
+ p.InfraContainerSpec.NetNS.NSMode = specgen.Private
+ logrus.Debugf("Pod will use default network mode")
case specgen.Host:
logrus.Debugf("Pod will use host networking")
if len(p.InfraContainerSpec.PortMappings) > 0 ||
@@ -235,15 +238,15 @@ func MapSpec(p *specgen.PodSpecGenerator) (*specgen.SpecGenerator, error) {
p.InfraContainerSpec.NetNS.NSMode = specgen.Host
case specgen.Slirp:
logrus.Debugf("Pod will use slirp4netns")
- if p.InfraContainerSpec.NetNS.NSMode != "host" {
+ if p.InfraContainerSpec.NetNS.NSMode != specgen.Host {
p.InfraContainerSpec.NetworkOptions = p.NetworkOptions
- p.InfraContainerSpec.NetNS.NSMode = specgen.NamespaceMode("slirp4netns")
+ p.InfraContainerSpec.NetNS.NSMode = specgen.Slirp
}
case specgen.NoNetwork:
logrus.Debugf("Pod will not use networking")
if len(p.InfraContainerSpec.PortMappings) > 0 ||
len(p.InfraContainerSpec.Networks) > 0 ||
- p.InfraContainerSpec.NetNS.NSMode == "host" {
+ p.InfraContainerSpec.NetNS.NSMode == specgen.Host {
return nil, errors.Wrapf(define.ErrInvalidArg, "cannot disable pod network if network-related configuration is specified")
}
p.InfraContainerSpec.NetNS.NSMode = specgen.NoNetwork
diff --git a/pkg/specgen/namespaces.go b/pkg/specgen/namespaces.go
index 5a3b94ca4..f1343f6e2 100644
--- a/pkg/specgen/namespaces.go
+++ b/pkg/specgen/namespaces.go
@@ -10,7 +10,6 @@ import (
"github.com/containers/common/pkg/cgroups"
cutil "github.com/containers/common/pkg/util"
"github.com/containers/podman/v4/libpod/define"
- "github.com/containers/podman/v4/pkg/rootless"
"github.com/containers/podman/v4/pkg/util"
"github.com/containers/storage"
spec "github.com/opencontainers/runtime-spec/specs-go"
@@ -319,62 +318,6 @@ func ParseUserNamespace(ns string) (Namespace, error) {
return ParseNamespace(ns)
}
-// ParseNetworkNamespace parses a network namespace specification in string
-// form.
-// Returns a namespace and (optionally) a list of CNI networks to join.
-func ParseNetworkNamespace(ns string, rootlessDefaultCNI bool) (Namespace, map[string]types.PerNetworkOptions, error) {
- toReturn := Namespace{}
- networks := make(map[string]types.PerNetworkOptions)
- // Net defaults to Slirp on rootless
- switch {
- case ns == string(Slirp), strings.HasPrefix(ns, string(Slirp)+":"):
- toReturn.NSMode = Slirp
- case ns == string(FromPod):
- toReturn.NSMode = FromPod
- case ns == "" || ns == string(Default) || ns == string(Private):
- if rootless.IsRootless() {
- if rootlessDefaultCNI {
- toReturn.NSMode = Bridge
- } else {
- toReturn.NSMode = Slirp
- }
- } else {
- toReturn.NSMode = Bridge
- }
- case ns == string(Bridge):
- toReturn.NSMode = Bridge
- case ns == string(NoNetwork):
- toReturn.NSMode = NoNetwork
- case ns == string(Host):
- toReturn.NSMode = Host
- 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, string(FromContainer)+":"):
- 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:
- // Assume we have been given a list of CNI networks.
- // Which only works in bridge mode, so set that.
- networkList := strings.Split(ns, ",")
- for _, net := range networkList {
- networks[net] = types.PerNetworkOptions{}
- }
-
- toReturn.NSMode = Bridge
- }
-
- return toReturn, networks, nil
-}
-
// ParseNetworkFlag parses a network string slice into the network options
// If the input is nil or empty it will use the default setting from containers.conf
func ParseNetworkFlag(networks []string) (Namespace, map[string]types.PerNetworkOptions, map[string][]string, error) {
@@ -400,13 +343,7 @@ func ParseNetworkFlag(networks []string) (Namespace, map[string]types.PerNetwork
case ns == string(FromPod):
toReturn.NSMode = FromPod
case ns == "" || ns == string(Default) || ns == string(Private):
- // Net defaults to Slirp on rootless
- if rootless.IsRootless() {
- toReturn.NSMode = Slirp
- break
- }
- // if root we use bridge
- fallthrough
+ toReturn.NSMode = Private
case ns == string(Bridge), strings.HasPrefix(ns, string(Bridge)+":"):
toReturn.NSMode = Bridge
parts := strings.SplitN(ns, ":", 2)
diff --git a/pkg/specgen/namespaces_test.go b/pkg/specgen/namespaces_test.go
index 368c92bd5..d03a6d032 100644
--- a/pkg/specgen/namespaces_test.go
+++ b/pkg/specgen/namespaces_test.go
@@ -5,7 +5,6 @@ import (
"testing"
"github.com/containers/common/libnetwork/types"
- "github.com/containers/podman/v4/pkg/rootless"
"github.com/stretchr/testify/assert"
)
@@ -17,14 +16,6 @@ func parsMacNoErr(mac string) types.HardwareAddr {
func TestParseNetworkFlag(t *testing.T) {
// root and rootless have different defaults
defaultNetName := "default"
- defaultNetworks := map[string]types.PerNetworkOptions{
- defaultNetName: {},
- }
- defaultNsMode := Namespace{NSMode: Bridge}
- if rootless.IsRootless() {
- defaultNsMode = Namespace{NSMode: Slirp}
- defaultNetworks = map[string]types.PerNetworkOptions{}
- }
tests := []struct {
name string
@@ -37,26 +28,26 @@ func TestParseNetworkFlag(t *testing.T) {
{
name: "empty input",
args: nil,
- nsmode: defaultNsMode,
- networks: defaultNetworks,
+ nsmode: Namespace{NSMode: Private},
+ networks: map[string]types.PerNetworkOptions{},
},
{
name: "empty string as input",
args: []string{},
- nsmode: defaultNsMode,
- networks: defaultNetworks,
+ nsmode: Namespace{NSMode: Private},
+ networks: map[string]types.PerNetworkOptions{},
},
{
name: "default mode",
args: []string{"default"},
- nsmode: defaultNsMode,
- networks: defaultNetworks,
+ nsmode: Namespace{NSMode: Private},
+ networks: map[string]types.PerNetworkOptions{},
},
{
name: "private mode",
args: []string{"private"},
- nsmode: defaultNsMode,
- networks: defaultNetworks,
+ nsmode: Namespace{NSMode: Private},
+ networks: map[string]types.PerNetworkOptions{},
},
{
name: "bridge mode",
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-09-24 10:22:58 +0000