From 266c4952a89be89b1741f9fa69443f51387dd5c6 Mon Sep 17 00:00:00 2001 From: Giuseppe Scrivano Date: Thu, 22 Nov 2018 10:57:05 +0100 Subject: tests: change return type for PodmanAsUser to PodmanTestIntegration Signed-off-by: Giuseppe Scrivano --- test/e2e/libpod_suite_test.go | 6 ++++++ test/utils/podmantest_test.go | 4 ++-- test/utils/utils.go | 6 +++--- 3 files changed, 11 insertions(+), 5 deletions(-) diff --git a/test/e2e/libpod_suite_test.go b/test/e2e/libpod_suite_test.go index 52507c083..f4f154ef2 100644 --- a/test/e2e/libpod_suite_test.go +++ b/test/e2e/libpod_suite_test.go @@ -181,6 +181,12 @@ func (p *PodmanTestIntegration) Podman(args []string) *PodmanSessionIntegration return &PodmanSessionIntegration{podmanSession} } +// PodmanAsUser is the exec call to podman on the filesystem with the specified uid/gid and environment +func (p *PodmanTestIntegration) PodmanAsUser(args []string, uid, gid uint32, env []string) *PodmanSessionIntegration { + podmanSession := p.PodmanAsUserBase(args, uid, gid, env) + return &PodmanSessionIntegration{podmanSession} +} + // PodmanPID execs podman and returns its PID func (p *PodmanTestIntegration) PodmanPID(args []string) (*PodmanSessionIntegration, int) { podmanOptions := p.MakeOptions(args) diff --git a/test/utils/podmantest_test.go b/test/utils/podmantest_test.go index 87f756920..60e3e2a97 100644 --- a/test/utils/podmantest_test.go +++ b/test/utils/podmantest_test.go @@ -19,11 +19,11 @@ var _ = Describe("PodmanTest test", func() { FakeOutputs = make(map[string][]string) }) - It("Test PodmanAsUser", func() { + It("Test PodmanAsUserBase", func() { FakeOutputs["check"] = []string{"check"} os.Setenv("HOOK_OPTION", "hook_option") env := os.Environ() - session := podmanTest.PodmanAsUser([]string{"check"}, 1000, 1000, env) + session := podmanTest.PodmanAsUserBase([]string{"check"}, 1000, 1000, env) os.Unsetenv("HOOK_OPTION") session.WaitWithDefaultTimeout() Expect(session.Command.Process).ShouldNot(BeNil()) diff --git a/test/utils/utils.go b/test/utils/utils.go index c9409c9d4..288c768d4 100644 --- a/test/utils/utils.go +++ b/test/utils/utils.go @@ -56,9 +56,9 @@ func (p *PodmanTest) MakeOptions(args []string) []string { return p.PodmanMakeOptions(args) } -// PodmanAsUser exec podman as user. uid and gid is set for credentials useage. env is used +// PodmanAsUserBase exec podman as user. uid and gid is set for credentials useage. env is used // to record the env for debugging -func (p *PodmanTest) PodmanAsUser(args []string, uid, gid uint32, env []string) *PodmanSession { +func (p *PodmanTest) PodmanAsUserBase(args []string, uid, gid uint32, env []string) *PodmanSession { var command *exec.Cmd podmanOptions := p.MakeOptions(args) @@ -86,7 +86,7 @@ func (p *PodmanTest) PodmanAsUser(args []string, uid, gid uint32, env []string) // PodmanBase exec podman with default env. func (p *PodmanTest) PodmanBase(args []string) *PodmanSession { - return p.PodmanAsUser(args, 0, 0, nil) + return p.PodmanAsUserBase(args, 0, 0, nil) } // WaitForContainer waits on a started container -- cgit v1.2.3-54-g00ecf From 4203df69aca13f14e43ad32a9b7ffb6cfb8c1016 Mon Sep 17 00:00:00 2001 From: Giuseppe Scrivano Date: Wed, 21 Nov 2018 17:38:28 +0100 Subject: rootless: add new netmode "slirp4netns" so that inspect reports the correct network configuration. Closes: https://github.com/containers/libpod/issues/1453 Signed-off-by: Giuseppe Scrivano --- cmd/podman/common.go | 10 +++++++++- pkg/namespaces/namespaces.go | 7 ++++++- pkg/spec/spec.go | 3 +++ pkg/varlinkapi/containers_create.go | 7 ++++++- test/e2e/rootless_test.go | 8 ++++++++ 5 files changed, 32 insertions(+), 3 deletions(-) diff --git a/cmd/podman/common.go b/cmd/podman/common.go index f9e746b28..c4016698a 100644 --- a/cmd/podman/common.go +++ b/cmd/podman/common.go @@ -11,6 +11,7 @@ import ( "github.com/containers/buildah" "github.com/containers/libpod/libpod" + "github.com/containers/libpod/pkg/rootless" "github.com/containers/storage" "github.com/fatih/camelcase" "github.com/pkg/errors" @@ -161,6 +162,13 @@ func getContext() context.Context { return context.TODO() } +func getDefaultNetwork() string { + if rootless.IsRootless() { + return "slirp4netns" + } + return "bridge" +} + // Common flags shared between commands var createFlags = []cli.Flag{ cli.StringSliceFlag{ @@ -372,7 +380,7 @@ var createFlags = []cli.Flag{ cli.StringFlag{ Name: "net, network", Usage: "Connect a container to a network", - Value: "bridge", + Value: getDefaultNetwork(), }, cli.BoolFlag{ Name: "oom-kill-disable", diff --git a/pkg/namespaces/namespaces.go b/pkg/namespaces/namespaces.go index bee833fa9..832efd554 100644 --- a/pkg/namespaces/namespaces.go +++ b/pkg/namespaces/namespaces.go @@ -223,7 +223,12 @@ func (n NetworkMode) IsBridge() bool { return n == "bridge" } +// IsSlirp4netns indicates if we are running a rootless network stack +func (n NetworkMode) IsSlirp4netns() bool { + return n == "slirp4netns" +} + // IsUserDefined indicates user-created network func (n NetworkMode) IsUserDefined() bool { - return !n.IsDefault() && !n.IsBridge() && !n.IsHost() && !n.IsNone() && !n.IsContainer() + return !n.IsDefault() && !n.IsBridge() && !n.IsHost() && !n.IsNone() && !n.IsContainer() && !n.IsSlirp4netns() } diff --git a/pkg/spec/spec.go b/pkg/spec/spec.go index b1cca2c9e..05be00864 100644 --- a/pkg/spec/spec.go +++ b/pkg/spec/spec.go @@ -453,6 +453,9 @@ func addNetNS(config *CreateConfig, g *generate.Generator) error { } else if IsPod(string(netMode)) { logrus.Debug("Using pod netmode, unless pod is not sharing") return nil + } else if netMode.IsSlirp4netns() { + logrus.Debug("Using slirp4netns netmode") + return nil } else if netMode.IsUserDefined() { logrus.Debug("Using user defined netmode") return nil diff --git a/pkg/varlinkapi/containers_create.go b/pkg/varlinkapi/containers_create.go index ca1a57048..f9a2db9c8 100644 --- a/pkg/varlinkapi/containers_create.go +++ b/pkg/varlinkapi/containers_create.go @@ -13,6 +13,7 @@ import ( "github.com/containers/libpod/libpod/image" "github.com/containers/libpod/pkg/inspect" "github.com/containers/libpod/pkg/namespaces" + "github.com/containers/libpod/pkg/rootless" cc "github.com/containers/libpod/pkg/spec" "github.com/containers/libpod/pkg/util" "github.com/docker/docker/pkg/signal" @@ -126,7 +127,11 @@ func varlinkCreateToCreateConfig(ctx context.Context, create iopodman.Create, ru // NETWORK MODE networkMode := create.Net_mode if networkMode == "" { - networkMode = "bridge" + if rootless.IsRootless() { + networkMode = "slirp4netns" + } else { + networkMode = "bridge" + } } // WORKING DIR diff --git a/test/e2e/rootless_test.go b/test/e2e/rootless_test.go index 995744ae5..9f84d4c13 100644 --- a/test/e2e/rootless_test.go +++ b/test/e2e/rootless_test.go @@ -217,6 +217,14 @@ var _ = Describe("Podman rootless", func() { cmd.WaitWithDefaultTimeout() Expect(cmd.ExitCode()).To(Equal(0)) + if len(args) == 0 { + cmd = rootlessTest.PodmanAsUser([]string{"inspect", "-l"}, 1000, 1000, env) + cmd.WaitWithDefaultTimeout() + Expect(cmd.ExitCode()).To(Equal(0)) + data := cmd.InspectContainerToJSON() + Expect(data[0].HostConfig.NetworkMode).To(ContainSubstring("slirp4netns")) + } + if !canUseExec { Skip("ioctl(NS_GET_PARENT) not supported.") } -- cgit v1.2.3-54-g00ecf From 95f22a2ca055d6dec0281cee109375dc4fd9b78b Mon Sep 17 00:00:00 2001 From: Giuseppe Scrivano Date: Mon, 26 Nov 2018 21:31:06 +0100 Subject: network: allow slirp4netns mode also for root containers Signed-off-by: Giuseppe Scrivano --- docs/podman-create.1.md | 3 ++- docs/podman-run.1.md | 3 ++- libpod/container.go | 3 +++ libpod/container_easyjson.go | 13 +++++++++++++ libpod/container_internal.go | 2 +- libpod/oci.go | 2 +- libpod/options.go | 4 +++- libpod/runtime_pod_infra_linux.go | 6 +++++- pkg/spec/createconfig.go | 4 ++-- 9 files changed, 32 insertions(+), 8 deletions(-) diff --git a/docs/podman-create.1.md b/docs/podman-create.1.md index 68c00685b..474796a35 100644 --- a/docs/podman-create.1.md +++ b/docs/podman-create.1.md @@ -426,7 +426,8 @@ Set the Network mode for the container 'container:': 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. '|': connect to a user-defined network - 'ns:' path to a network namespace to join + 'ns:': path to a network namespace to join + 'slirp4netns': use slirp4netns to create a user network stack. This is the default for rootless containers **--network-alias**=[] diff --git a/docs/podman-run.1.md b/docs/podman-run.1.md index 912026a55..202091b07 100644 --- a/docs/podman-run.1.md +++ b/docs/podman-run.1.md @@ -408,7 +408,8 @@ Set the Network mode for the container: - `container:`: 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. - `|`: connect to a user-defined network -- `ns:` path to a network namespace to join +- `ns:`: path to a network namespace to join +- `slirp4netns`: use slirp4netns to create a user network stack. This is the default for rootless containers **--network-alias**=[] diff --git a/libpod/container.go b/libpod/container.go index 16f61d021..a8a58f4d8 100644 --- a/libpod/container.go +++ b/libpod/container.go @@ -9,6 +9,7 @@ import ( "github.com/containernetworking/cni/pkg/types" cnitypes "github.com/containernetworking/cni/pkg/types/current" + "github.com/containers/libpod/pkg/namespaces" "github.com/containers/storage" "github.com/cri-o/ocicni/pkg/ocicni" spec "github.com/opencontainers/runtime-spec/specs-go" @@ -296,6 +297,8 @@ type ContainerConfig struct { HostAdd []string `json:"hostsAdd,omitempty"` // Network names (CNI) to add container to. Empty to use default network. Networks []string `json:"networks,omitempty"` + // Network mode specified for the default network. + NetMode namespaces.NetworkMode `json:"networkMode,omitempty"` // Image Config diff --git a/libpod/container_easyjson.go b/libpod/container_easyjson.go index 041cc08ac..8bf5cb64f 100644 --- a/libpod/container_easyjson.go +++ b/libpod/container_easyjson.go @@ -8,6 +8,7 @@ import ( json "encoding/json" types "github.com/containernetworking/cni/pkg/types" current "github.com/containernetworking/cni/pkg/types/current" + namespaces "github.com/containers/libpod/pkg/namespaces" storage "github.com/containers/storage" idtools "github.com/containers/storage/pkg/idtools" ocicni "github.com/cri-o/ocicni/pkg/ocicni" @@ -1550,6 +1551,8 @@ func easyjson1dbef17bDecodeGithubComContainersLibpodLibpod2(in *jlexer.Lexer, ou } in.Delim(']') } + case "networkMode": + out.NetMode = namespaces.NetworkMode(in.String()) case "userVolumes": if in.IsNull() { in.Skip() @@ -2177,6 +2180,16 @@ func easyjson1dbef17bEncodeGithubComContainersLibpodLibpod2(out *jwriter.Writer, out.RawByte(']') } } + if in.NetMode != "" { + const prefix string = ",\"networkMode\":" + if first { + first = false + out.RawString(prefix[1:]) + } else { + out.RawString(prefix) + } + out.String(string(in.NetMode)) + } if len(in.UserVolumes) != 0 { const prefix string = ",\"userVolumes\":" if first { diff --git a/libpod/container_internal.go b/libpod/container_internal.go index 051e0aeb7..e44ec76ec 100644 --- a/libpod/container_internal.go +++ b/libpod/container_internal.go @@ -586,7 +586,7 @@ func (c *Container) completeNetworkSetup() error { if err := c.syncContainer(); err != nil { return err } - if rootless.IsRootless() { + if c.config.NetMode == "slirp4netns" { return c.runtime.setupRootlessNetNS(c) } return c.runtime.setupNetNS(c) diff --git a/libpod/oci.go b/libpod/oci.go index a7aec06e5..e9cceda82 100644 --- a/libpod/oci.go +++ b/libpod/oci.go @@ -329,7 +329,7 @@ func (r *OCIRuntime) createOCIContainer(ctr *Container, cgroupParent string, res cmd.ExtraFiles = append(cmd.ExtraFiles, ports...) } - if rootless.IsRootless() { + if ctr.config.NetMode.IsSlirp4netns() { ctr.rootlessSlirpSyncR, ctr.rootlessSlirpSyncW, err = os.Pipe() if err != nil { return errors.Wrapf(err, "failed to create rootless network sync pipe") diff --git a/libpod/options.go b/libpod/options.go index 507847d65..7f4e3ac6b 100644 --- a/libpod/options.go +++ b/libpod/options.go @@ -7,6 +7,7 @@ import ( "regexp" "syscall" + "github.com/containers/libpod/pkg/namespaces" "github.com/containers/storage" "github.com/containers/storage/pkg/idtools" "github.com/cri-o/ocicni/pkg/ocicni" @@ -817,7 +818,7 @@ func WithDependencyCtrs(ctrs []*Container) CtrCreateOption { // namespace with a minimal configuration. // An optional array of port mappings can be provided. // Conflicts with WithNetNSFrom(). -func WithNetNS(portMappings []ocicni.PortMapping, postConfigureNetNS bool, networks []string) CtrCreateOption { +func WithNetNS(portMappings []ocicni.PortMapping, postConfigureNetNS bool, netmode string, networks []string) CtrCreateOption { return func(ctr *Container) error { if ctr.valid { return ErrCtrFinalized @@ -831,6 +832,7 @@ func WithNetNS(portMappings []ocicni.PortMapping, postConfigureNetNS bool, netwo ctr.config.CreateNetNS = true ctr.config.PortMappings = portMappings ctr.config.Networks = networks + ctr.config.NetMode = namespaces.NetworkMode(netmode) return nil } diff --git a/libpod/runtime_pod_infra_linux.go b/libpod/runtime_pod_infra_linux.go index 450a2fb32..8a5dbef56 100644 --- a/libpod/runtime_pod_infra_linux.go +++ b/libpod/runtime_pod_infra_linux.go @@ -50,7 +50,11 @@ func (r *Runtime) makeInfraContainer(ctx context.Context, p *Pod, imgName, imgID // Since user namespace sharing is not implemented, we only need to check if it's rootless networks := make([]string, 0) - options = append(options, WithNetNS(p.config.InfraContainer.PortBindings, isRootless, networks)) + netmode := "bridge" + if isRootless { + netmode = "slirp4netns" + } + options = append(options, WithNetNS(p.config.InfraContainer.PortBindings, isRootless, netmode, networks)) return r.newContainer(ctx, g.Config, options...) } diff --git a/pkg/spec/createconfig.go b/pkg/spec/createconfig.go index 6a0642ee7..a0fd40318 100644 --- a/pkg/spec/createconfig.go +++ b/pkg/spec/createconfig.go @@ -391,11 +391,11 @@ func (c *CreateConfig) GetContainerCreateOptions(runtime *libpod.Runtime) ([]lib options = append(options, libpod.WithNetNSFrom(connectedCtr)) } else if !c.NetMode.IsHost() && !c.NetMode.IsNone() { isRootless := rootless.IsRootless() - postConfigureNetNS := isRootless || (len(c.IDMappings.UIDMap) > 0 || len(c.IDMappings.GIDMap) > 0) && !c.UsernsMode.IsHost() + postConfigureNetNS := c.NetMode.IsSlirp4netns() || (len(c.IDMappings.UIDMap) > 0 || len(c.IDMappings.GIDMap) > 0) && !c.UsernsMode.IsHost() if isRootless && len(portBindings) > 0 { return nil, errors.New("port bindings are not yet supported by rootless containers") } - options = append(options, libpod.WithNetNS(portBindings, postConfigureNetNS, networks)) + options = append(options, libpod.WithNetNS(portBindings, postConfigureNetNS, string(c.NetMode), networks)) } if c.PidMode.IsContainer() { -- cgit v1.2.3-54-g00ecf