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Add FreeBSD container support #7727
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2f4bc00
internal/config/device: add stub for DevicesFromAnnotation
dfr 29a85ac
internal/linklogs: add stub for freebsd
dfr 68091fe
internal/factory/container: make (*container).SelinuxLabel platform-s…
dfr 7f104e5
internal/factory/container: make SpecAddNamespaces platform-specific
dfr 286e7e2
internal/factory/container: add no-op stub for SpecAddDevices on FreeBSD
dfr 5035c19
server: factor out creating the security context
dfr 20b17df
server: add no-op stub for makeOCIConfigurationRootless
dfr e533ab2
server: factor out adding sysfs mounts
dfr 7cdfc79
server: factor out adding /dev/shm mount
dfr 3c7337f
server: move createSandboxContainer and related functions to containe…
dfr 8287e41
server: don't dereference Config.Linux if it is nil
dfr File filter
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| package container | ||
|
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| func (c *container) SelinuxLabel(sboxLabel string) ([]string, error) { | ||
| return []string{}, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| package container | ||
|
|
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| import ( | ||
| "strings" | ||
|
|
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| "github.com/opencontainers/selinux/go-selinux/label" | ||
|
|
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| "github.com/cri-o/cri-o/utils" | ||
| ) | ||
|
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| // SelinuxLabel returns the container's SelinuxLabel | ||
| // it takes the sandbox's label, which it falls back upon. | ||
| func (c *container) SelinuxLabel(sboxLabel string) ([]string, error) { | ||
| selinuxConfig := c.config.Linux.SecurityContext.SelinuxOptions | ||
|
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| labels := map[string]string{} | ||
|
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| labelOptions, err := label.DupSecOpt(sboxLabel) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
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| for _, r := range labelOptions { | ||
| k := strings.Split(r, ":")[0] | ||
| labels[k] = r | ||
| } | ||
|
|
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| if selinuxConfig != nil { | ||
| for _, r := range utils.GetLabelOptions(selinuxConfig) { | ||
| k := strings.Split(r, ":")[0] | ||
| labels[k] = r | ||
| } | ||
| } | ||
|
|
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| ret := []string{} | ||
| for _, v := range labels { | ||
| ret = append(ret, v) | ||
| } | ||
|
|
||
| return ret, nil | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,9 @@ | ||
| package container | ||
|
|
||
| import ( | ||
| devicecfg "github.com/cri-o/cri-o/internal/config/device" | ||
| ) | ||
|
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| func (c *container) SpecAddDevices(configuredDevices, annotationDevices []devicecfg.Device, privilegedWithoutHostDevices, enableDeviceOwnershipFromSecurityContext bool) error { | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| //go:build !linux | ||
| //go:build !linux && !freebsd | ||
|
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| package container | ||
|
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||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,106 +1,9 @@ | ||
| package container | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
|
|
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| rspec "github.com/opencontainers/runtime-spec/specs-go" | ||
| "github.com/opencontainers/runtime-tools/generate" | ||
| types "k8s.io/cri-api/pkg/apis/runtime/v1" | ||
|
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| "github.com/cri-o/cri-o/internal/config/nsmgr" | ||
| "github.com/cri-o/cri-o/internal/lib/namespace" | ||
| oci "github.com/cri-o/cri-o/internal/oci" | ||
| "github.com/cri-o/cri-o/pkg/config" | ||
| ) | ||
|
|
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| func (c *container) SpecAddNamespaces(sb SandboxIFace, targetCtr *oci.Container, serverConfig *config.Config) error { | ||
| // Join the namespace paths for the pod sandbox container. | ||
| if err := ConfigureGeneratorGivenNamespacePaths(sb.NamespacePaths(), &c.spec); err != nil { | ||
| return fmt.Errorf("failed to configure namespaces in container create: %w", err) | ||
| } | ||
|
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| sc := c.config.Linux.SecurityContext | ||
|
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| if sc.NamespaceOptions.Network == types.NamespaceMode_NODE { | ||
| if err := c.spec.RemoveLinuxNamespace(string(rspec.NetworkNamespace)); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
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| switch sc.NamespaceOptions.Pid { | ||
| case types.NamespaceMode_NODE: | ||
| // kubernetes PodSpec specify to use Host PID namespace | ||
| if err := c.spec.RemoveLinuxNamespace(string(rspec.PIDNamespace)); err != nil { | ||
| return err | ||
| } | ||
| case types.NamespaceMode_POD: | ||
| pidNsPath := sb.PidNsPath() | ||
| if pidNsPath == "" { | ||
| if sb.NamespaceOptions().Pid != types.NamespaceMode_POD { | ||
| return errors.New("pod level PID namespace requested for the container, but pod sandbox was not similarly configured, and does not have an infra container") | ||
| } | ||
|
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| return errors.New("PID namespace requested, but sandbox infra container unexpectedly invalid") | ||
| } | ||
|
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| if err := c.spec.AddOrReplaceLinuxNamespace(string(rspec.PIDNamespace), pidNsPath); err != nil { | ||
| return fmt.Errorf("updating container PID namespace to pod: %w", err) | ||
| } | ||
| case types.NamespaceMode_TARGET: | ||
| if targetCtr == nil { | ||
| return errors.New("target PID namespace specified with invalid target ID") | ||
| } | ||
|
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| targetPID, err := targetCtr.Pid() | ||
| if err != nil { | ||
| return fmt.Errorf("target PID namespace find PID: %w", err) | ||
| } | ||
|
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||
| ns, err := serverConfig.NamespaceManager().NamespaceFromProcEntry(targetPID, nsmgr.PIDNS) | ||
| if err != nil { | ||
| return fmt.Errorf("target PID namespace from proc: %w", err) | ||
| } | ||
|
|
||
| if err := c.spec.AddOrReplaceLinuxNamespace(string(rspec.PIDNamespace), ns.Path()); err != nil { | ||
| return fmt.Errorf("updating container PID namespace to target %s: %w", targetCtr.ID(), err) | ||
| } | ||
|
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| c.pidns = ns | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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||
| // ConfigureGeneratorGivenNamespacePaths takes a map of nsType -> nsPath. It configures the generator | ||
| // to add or replace the defaults to these paths. | ||
| func ConfigureGeneratorGivenNamespacePaths(managedNamespaces []*namespace.ManagedNamespace, g *generate.Generator) error { | ||
| typeToSpec := map[nsmgr.NSType]rspec.LinuxNamespaceType{ | ||
| nsmgr.IPCNS: rspec.IPCNamespace, | ||
| nsmgr.NETNS: rspec.NetworkNamespace, | ||
| nsmgr.UTSNS: rspec.UTSNamespace, | ||
| nsmgr.USERNS: rspec.UserNamespace, | ||
| } | ||
|
|
||
| for _, ns := range managedNamespaces { | ||
| // allow for empty paths, as this namespace just shouldn't be configured | ||
| if ns.Path() == "" { | ||
| continue | ||
| } | ||
|
|
||
| nsForSpec := typeToSpec[ns.Type()] | ||
| if nsForSpec == "" { | ||
| return fmt.Errorf("invalid namespace type %s", ns.Type()) | ||
| } | ||
|
|
||
| if err := g.AddOrReplaceLinuxNamespace(string(nsForSpec), ns.Path()); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (c *container) PidNamespace() nsmgr.Namespace { | ||
| return c.pidns | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| package container | ||
|
|
||
| import ( | ||
| "github.com/cri-o/cri-o/internal/config/nsmgr" | ||
| oci "github.com/cri-o/cri-o/internal/oci" | ||
| "github.com/cri-o/cri-o/pkg/config" | ||
| ) | ||
|
|
||
| func (c *container) SpecAddNamespaces(sb SandboxIFace, targetCtr *oci.Container, serverConfig *config.Config) error { | ||
| // Join the namespace paths for the pod sandbox container. | ||
| managedNamespaces := sb.NamespacePaths() | ||
|
|
||
| for _, ns := range managedNamespaces { | ||
| if ns.Type() == nsmgr.NETNS { | ||
| c.Spec().AddAnnotation("org.freebsd.parentJail", ns.Path()) | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| package container | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
|
|
||
| rspec "github.com/opencontainers/runtime-spec/specs-go" | ||
| "github.com/opencontainers/runtime-tools/generate" | ||
| types "k8s.io/cri-api/pkg/apis/runtime/v1" | ||
|
|
||
| "github.com/cri-o/cri-o/internal/config/nsmgr" | ||
| "github.com/cri-o/cri-o/internal/lib/namespace" | ||
| oci "github.com/cri-o/cri-o/internal/oci" | ||
| "github.com/cri-o/cri-o/pkg/config" | ||
| ) | ||
|
|
||
| func (c *container) SpecAddNamespaces(sb SandboxIFace, targetCtr *oci.Container, serverConfig *config.Config) error { | ||
| // Join the namespace paths for the pod sandbox container. | ||
| if err := ConfigureGeneratorGivenNamespacePaths(sb.NamespacePaths(), &c.spec); err != nil { | ||
| return fmt.Errorf("failed to configure namespaces in container create: %w", err) | ||
| } | ||
|
|
||
| sc := c.config.Linux.SecurityContext | ||
|
|
||
| if sc.NamespaceOptions.Network == types.NamespaceMode_NODE { | ||
| if err := c.spec.RemoveLinuxNamespace(string(rspec.NetworkNamespace)); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| switch sc.NamespaceOptions.Pid { | ||
| case types.NamespaceMode_NODE: | ||
| // kubernetes PodSpec specify to use Host PID namespace | ||
| if err := c.spec.RemoveLinuxNamespace(string(rspec.PIDNamespace)); err != nil { | ||
| return err | ||
| } | ||
| case types.NamespaceMode_POD: | ||
| pidNsPath := sb.PidNsPath() | ||
| if pidNsPath == "" { | ||
| if sb.NamespaceOptions().Pid != types.NamespaceMode_POD { | ||
| return errors.New("pod level PID namespace requested for the container, but pod sandbox was not similarly configured, and does not have an infra container") | ||
| } | ||
|
|
||
| return errors.New("PID namespace requested, but sandbox infra container unexpectedly invalid") | ||
| } | ||
|
|
||
| if err := c.spec.AddOrReplaceLinuxNamespace(string(rspec.PIDNamespace), pidNsPath); err != nil { | ||
| return fmt.Errorf("updating container PID namespace to pod: %w", err) | ||
| } | ||
| case types.NamespaceMode_TARGET: | ||
| if targetCtr == nil { | ||
| return errors.New("target PID namespace specified with invalid target ID") | ||
| } | ||
|
|
||
| targetPID, err := targetCtr.Pid() | ||
| if err != nil { | ||
| return fmt.Errorf("target PID namespace find PID: %w", err) | ||
| } | ||
|
|
||
| ns, err := serverConfig.NamespaceManager().NamespaceFromProcEntry(targetPID, nsmgr.PIDNS) | ||
| if err != nil { | ||
| return fmt.Errorf("target PID namespace from proc: %w", err) | ||
| } | ||
|
|
||
| if err := c.spec.AddOrReplaceLinuxNamespace(string(rspec.PIDNamespace), ns.Path()); err != nil { | ||
| return fmt.Errorf("updating container PID namespace to target %s: %w", targetCtr.ID(), err) | ||
| } | ||
|
|
||
| c.pidns = ns | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // ConfigureGeneratorGivenNamespacePaths takes a map of nsType -> nsPath. It configures the generator | ||
| // to add or replace the defaults to these paths. | ||
| func ConfigureGeneratorGivenNamespacePaths(managedNamespaces []*namespace.ManagedNamespace, g *generate.Generator) error { | ||
| typeToSpec := map[nsmgr.NSType]rspec.LinuxNamespaceType{ | ||
| nsmgr.IPCNS: rspec.IPCNamespace, | ||
| nsmgr.NETNS: rspec.NetworkNamespace, | ||
| nsmgr.UTSNS: rspec.UTSNamespace, | ||
| nsmgr.USERNS: rspec.UserNamespace, | ||
| } | ||
|
|
||
| for _, ns := range managedNamespaces { | ||
| // allow for empty paths, as this namespace just shouldn't be configured | ||
| if ns.Path() == "" { | ||
| continue | ||
| } | ||
|
|
||
| nsForSpec := typeToSpec[ns.Type()] | ||
| if nsForSpec == "" { | ||
| return fmt.Errorf("invalid namespace type %s", ns.Type()) | ||
| } | ||
|
|
||
| if err := g.AddOrReplaceLinuxNamespace(string(nsForSpec), ns.Path()); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
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