mirror of
https://github.com/opencontainers/runc.git
synced 2025-10-31 19:13:12 +08:00
1c505fffdc
There's too much logic here figuring out which CPUs to use. Runc is a
low level tool and is not supposed to be that "smart". What's worse,
this logic is executed on every exec, making it slower. Some of the
logic in (*setnsProcess).start is executed even if no annotation is set,
thus making ALL execs slow.
Also, this should be a property of a process, rather than annotation.
The plan is to rework this.
This reverts commit afc23e3397.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
92 lines
2.5 KiB
Go
92 lines
2.5 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"github.com/opencontainers/runc/libcontainer/capabilities"
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"github.com/opencontainers/runc/libcontainer/configs"
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"github.com/opencontainers/runc/libcontainer/seccomp"
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"github.com/opencontainers/runc/libcontainer/specconv"
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runcfeatures "github.com/opencontainers/runc/types/features"
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"github.com/opencontainers/runtime-spec/specs-go"
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"github.com/opencontainers/runtime-spec/specs-go/features"
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"github.com/urfave/cli"
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)
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var featuresCommand = cli.Command{
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Name: "features",
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Usage: "show the enabled features",
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ArgsUsage: "",
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Description: `Show the enabled features.
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The result is parsable as a JSON.
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See https://github.com/opencontainers/runtime-spec/blob/main/features.md for the type definition.
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`,
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Action: func(context *cli.Context) error {
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if err := checkArgs(context, 0, exactArgs); err != nil {
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return err
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}
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t := true
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feat := features.Features{
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OCIVersionMin: "1.0.0",
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OCIVersionMax: specs.Version,
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Annotations: map[string]string{
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runcfeatures.AnnotationRuncVersion: version,
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runcfeatures.AnnotationRuncCommit: gitCommit,
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runcfeatures.AnnotationRuncCheckpointEnabled: "true",
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},
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Hooks: configs.KnownHookNames(),
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MountOptions: specconv.KnownMountOptions(),
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Linux: &features.Linux{
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Namespaces: specconv.KnownNamespaces(),
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Capabilities: capabilities.KnownCapabilities(),
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Cgroup: &features.Cgroup{
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V1: &t,
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V2: &t,
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Systemd: &t,
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SystemdUser: &t,
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Rdma: &t,
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},
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Apparmor: &features.Apparmor{
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Enabled: &t,
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},
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Selinux: &features.Selinux{
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Enabled: &t,
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},
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IntelRdt: &features.IntelRdt{
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Enabled: &t,
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},
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MountExtensions: &features.MountExtensions{
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IDMap: &features.IDMap{
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Enabled: &t,
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},
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},
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},
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PotentiallyUnsafeConfigAnnotations: []string{
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"bundle",
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"org.systemd.property.", // prefix form
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"org.criu.config",
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},
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}
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if seccomp.Enabled {
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feat.Linux.Seccomp = &features.Seccomp{
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Enabled: &t,
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Actions: seccomp.KnownActions(),
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Operators: seccomp.KnownOperators(),
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Archs: seccomp.KnownArchs(),
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KnownFlags: seccomp.KnownFlags(),
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SupportedFlags: seccomp.SupportedFlags(),
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}
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major, minor, patch := seccomp.Version()
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feat.Annotations[runcfeatures.AnnotationLibseccompVersion] = fmt.Sprintf("%d.%d.%d", major, minor, patch)
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}
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enc := json.NewEncoder(context.App.Writer)
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enc.SetIndent("", " ")
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return enc.Encode(feat)
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},
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}
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