From 2805c7353b15679d66eec988949bb79e1e320805 Mon Sep 17 00:00:00 2001 From: Paul Holzinger Date: Tue, 31 May 2022 18:37:40 +0200 Subject: pkg/specgen: parse default network mode on server When podman-remote is used we should not resolve the default network mode on the client. Defaults should be set on the server. In this case this is important because we have different defaults for root/rootless. So when the client is rootless and the server is root we must pick the root default. Note that this already worked when --network was set since we did not parsed the flag in this case. To reproduce you need --network=default. Also removed a unused function. [NO NEW TESTS NEEDED] I tested it manually but I am not sure how I can hook a test like this up in CI. The client would need to run as rootless and the server as root or the other way around. Fixes #14368 Signed-off-by: Paul Holzinger --- pkg/specgen/generate/namespaces.go | 12 ++++++------ pkg/specgen/generate/pod_create.go | 9 ++++++--- 2 files changed, 12 insertions(+), 9 deletions(-) (limited to 'pkg/specgen/generate') 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 5b7bb2b57..d4f281a11 100644 --- a/pkg/specgen/generate/pod_create.go +++ b/pkg/specgen/generate/pod_create.go @@ -141,6 +141,9 @@ 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 || @@ -151,15 +154,15 @@ 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 -- cgit v1.2.3-54-g00ecf