From 7a5342804944472246ed0b977e9088e0b01be87b Mon Sep 17 00:00:00 2001 From: cdoern Date: Mon, 21 Mar 2022 22:52:50 -0400 Subject: fix pod volume passing and alter infra inheritance the infra Inherit function was not properly passing pod volume information to new containers alter the inherit function and struct to use the new `ConfigToSpec` function used in clone pick and choose the proper entities from a temp spec and validate them on the spegen side rather than passing directly to a config resolves #13548 Signed-off-by: cdoern Signed-off-by: cdoern Signed-off-by: cdoern --- pkg/specgen/generate/container.go | 43 ++++++++++++++++++++++++++------ pkg/specgen/generate/container_create.go | 33 +++++++++--------------- pkg/specgen/generate/oci.go | 4 +-- 3 files changed, 49 insertions(+), 31 deletions(-) (limited to 'pkg/specgen') diff --git a/pkg/specgen/generate/container.go b/pkg/specgen/generate/container.go index 118d80e2c..b38b0e695 100644 --- a/pkg/specgen/generate/container.go +++ b/pkg/specgen/generate/container.go @@ -337,11 +337,11 @@ func FinishThrottleDevices(s *specgen.SpecGenerator) error { return nil } -// ConfigToSpec takes a completed container config and converts it back into a specgenerator for purposes of cloning an existing container -func ConfigToSpec(rt *libpod.Runtime, specg *specgen.SpecGenerator, containerID string) (*libpod.Container, error) { - c, err := rt.LookupContainer(containerID) +// ConfigToSpec takes a completed container config and converts it back into a specgenerator for purposes of cloning an exisiting container +func ConfigToSpec(rt *libpod.Runtime, specg *specgen.SpecGenerator, contaierID string) (*libpod.Container, *libpod.InfraInherit, error) { + c, err := rt.LookupContainer(contaierID) if err != nil { - return nil, err + return nil, nil, err } conf := c.Config() @@ -351,17 +351,22 @@ func ConfigToSpec(rt *libpod.Runtime, specg *specgen.SpecGenerator, containerID conf.Systemd = nil conf.Mounts = []string{} + if specg == nil { + specg = &specgen.SpecGenerator{} + } + specg.Pod = conf.Pod matching, err := json.Marshal(conf) if err != nil { - return nil, err + return nil, nil, err } err = json.Unmarshal(matching, specg) if err != nil { - return nil, err + return nil, nil, err } + conf.Systemd = tmpSystemd conf.Mounts = tmpMounts @@ -481,7 +486,29 @@ func ConfigToSpec(rt *libpod.Runtime, specg *specgen.SpecGenerator, containerID } } specg.OverlayVolumes = overlay - specg.Mounts = conf.Spec.Mounts + _, mounts := c.SortUserVolumes(c.Spec()) + specg.Mounts = mounts specg.HostDeviceList = conf.DeviceHostSrc - return c, nil + mapSecurityConfig(conf, specg) + + if c.IsInfra() { // if we are creating this spec for a pod's infra ctr, map the compatible options + spec, err := json.Marshal(specg) + if err != nil { + return nil, nil, err + } + infraInherit := &libpod.InfraInherit{} + err = json.Unmarshal(spec, infraInherit) + return c, infraInherit, err + } + // else just return the container + return c, nil, nil +} + +// mapSecurityConfig takes a libpod.ContainerSecurityConfig and converts it to a specgen.ContinerSecurityConfig +func mapSecurityConfig(c *libpod.ContainerConfig, s *specgen.SpecGenerator) { + s.Privileged = c.Privileged + s.SelinuxOpts = append(s.SelinuxOpts, c.LabelOpts...) + s.User = c.User + s.Groups = c.Groups + s.HostUsers = c.HostUsers } diff --git a/pkg/specgen/generate/container_create.go b/pkg/specgen/generate/container_create.go index a014f5047..6a611e854 100644 --- a/pkg/specgen/generate/container_create.go +++ b/pkg/specgen/generate/container_create.go @@ -49,7 +49,7 @@ func MakeContainer(ctx context.Context, rt *libpod.Runtime, s *specgen.SpecGener compatibleOptions := &libpod.InfraInherit{} var infraSpec *spec.Spec if infra != nil { - options, infraSpec, compatibleOptions, err = Inherit(*infra) + options, infraSpec, compatibleOptions, err = Inherit(*infra, s, rt) if err != nil { return nil, nil, nil, err } @@ -152,8 +152,8 @@ func MakeContainer(ctx context.Context, rt *libpod.Runtime, s *specgen.SpecGener return nil, nil, nil, err } - infraVolumes := (len(compatibleOptions.InfraVolumes) > 0 || len(compatibleOptions.InfraUserVolumes) > 0 || len(compatibleOptions.InfraImageVolumes) > 0) - opts, err := createContainerOptions(ctx, rt, s, pod, finalVolumes, finalOverlays, imageData, command, infraVolumes, *compatibleOptions) + infraVol := (len(compatibleOptions.Mounts) > 0 || len(compatibleOptions.Volumes) > 0 || len(compatibleOptions.ImageVolumes) > 0 || len(compatibleOptions.OverlayVolumes) > 0) + opts, err := createContainerOptions(ctx, rt, s, pod, finalVolumes, finalOverlays, imageData, command, infraVol, *compatibleOptions) if err != nil { return nil, nil, nil, err } @@ -446,7 +446,7 @@ func createContainerOptions(ctx context.Context, rt *libpod.Runtime, s *specgen. if len(s.SelinuxOpts) > 0 { options = append(options, libpod.WithSecLabels(s.SelinuxOpts)) } else { - if pod != nil && len(compatibleOptions.InfraLabels) == 0 { + if pod != nil && len(compatibleOptions.SelinuxOpts) == 0 { // duplicate the security options from the pod processLabel, err := pod.ProcessLabel() if err != nil { @@ -544,32 +544,23 @@ func createContainerOptions(ctx context.Context, rt *libpod.Runtime, s *specgen. return options, nil } -func Inherit(infra libpod.Container) (opts []libpod.CtrCreateOption, infraS *spec.Spec, compat *libpod.InfraInherit, err error) { +func Inherit(infra libpod.Container, s *specgen.SpecGenerator, rt *libpod.Runtime) (opts []libpod.CtrCreateOption, infraS *spec.Spec, compat *libpod.InfraInherit, err error) { + inheritSpec := &specgen.SpecGenerator{} + _, compatibleOptions, err := ConfigToSpec(rt, inheritSpec, infra.ID()) + if err != nil { + return nil, nil, nil, err + } options := []libpod.CtrCreateOption{} - compatibleOptions := &libpod.InfraInherit{} infraConf := infra.Config() infraSpec := infraConf.Spec - config, err := json.Marshal(infraConf) + compatByte, err := json.Marshal(compatibleOptions) if err != nil { return nil, nil, nil, err } - err = json.Unmarshal(config, compatibleOptions) + err = json.Unmarshal(compatByte, s) if err != nil { return nil, nil, nil, err } - if infraSpec.Linux != nil && infraSpec.Linux.Resources != nil { - resources, err := json.Marshal(infraSpec.Linux.Resources) - if err != nil { - return nil, nil, nil, err - } - err = json.Unmarshal(resources, &compatibleOptions.InfraResources) - if err != nil { - return nil, nil, nil, err - } - } - if compatibleOptions != nil { - options = append(options, libpod.WithInfraConfig(*compatibleOptions)) - } return options, infraSpec, compatibleOptions, nil } diff --git a/pkg/specgen/generate/oci.go b/pkg/specgen/generate/oci.go index 1cc3a463f..961cea933 100644 --- a/pkg/specgen/generate/oci.go +++ b/pkg/specgen/generate/oci.go @@ -352,8 +352,8 @@ func SpecGenToOCI(ctx context.Context, s *specgen.SpecGenerator, rt *libpod.Runt return nil, err } } - if len(compatibleOptions.InfraDevices) > 0 && len(s.Devices) == 0 { - userDevices = compatibleOptions.InfraDevices + if len(compatibleOptions.HostDeviceList) > 0 && len(s.Devices) == 0 { + userDevices = compatibleOptions.HostDeviceList } else { userDevices = s.Devices } -- cgit v1.2.3-54-g00ecf From 1cd529b22d40205c1f3246ed49f07e3615cf8292 Mon Sep 17 00:00:00 2001 From: Giuseppe Scrivano Date: Fri, 1 Apr 2022 10:15:08 +0200 Subject: specgen: permit --privileged and --cap-add --cap-add is useful when running a privileged container with UID != 0, so that individual capabilities can be added to the container process. Closes: https://github.com/containers/podman/issues/13449 Signed-off-by: Giuseppe Scrivano --- pkg/specgen/container_validate.go | 4 ---- test/e2e/run_test.go | 5 +++++ 2 files changed, 5 insertions(+), 4 deletions(-) (limited to 'pkg/specgen') diff --git a/pkg/specgen/container_validate.go b/pkg/specgen/container_validate.go index e71eafb75..42b70e334 100644 --- a/pkg/specgen/container_validate.go +++ b/pkg/specgen/container_validate.go @@ -83,10 +83,6 @@ func (s *SpecGenerator) Validate() error { // // ContainerSecurityConfig // - // capadd and privileged are exclusive - if len(s.CapAdd) > 0 && s.Privileged { - return exclusiveOptions("CapAdd", "privileged") - } // userns and idmappings conflict if s.UserNS.IsPrivate() && s.IDMappings == nil { return errors.Wrap(ErrInvalidSpecConfig, "IDMappings are required when not creating a User namespace") diff --git a/test/e2e/run_test.go b/test/e2e/run_test.go index 1a93296b7..a1d04ddee 100644 --- a/test/e2e/run_test.go +++ b/test/e2e/run_test.go @@ -535,6 +535,11 @@ var _ = Describe("Podman run", func() { Expect(session).Should(Exit(0)) Expect(session.OutputToString()).To(ContainSubstring("0000000000000000")) + session = podmanTest.Podman([]string{"run", "--user=1:1", "--cap-add=DAC_OVERRIDE", "--rm", ALPINE, "grep", "CapEff", "/proc/self/status"}) + session.WaitWithDefaultTimeout() + Expect(session).Should(Exit(0)) + Expect(session.OutputToString()).To(ContainSubstring("0000000000000002")) + if os.Geteuid() > 0 { if os.Getenv("SKIP_USERNS") != "" { Skip("Skip userns tests.") -- cgit v1.2.3-54-g00ecf