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features.go
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/
features.go
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package main
import (
"encoding/json"
"fmt"
"github.com/opencontainers/runc/libcontainer/capabilities"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/seccomp"
"github.com/opencontainers/runc/libcontainer/specconv"
"github.com/opencontainers/runc/types/features"
"github.com/opencontainers/runtime-spec/specs-go"
"github.com/urfave/cli"
)
var featuresCommand = cli.Command{
Name: "features",
Usage: "show the enabled features",
ArgsUsage: "",
Description: `Show the enabled features.
The result is parsable as a JSON.
See https://pkg.go.dev/github.com/opencontainers/runc/types/features for the type definition.
The types are experimental and subject to change.
`,
Action: func(context *cli.Context) error {
if err := checkArgs(context, 0, exactArgs); err != nil {
return err
}
tru := true
feat := features.Features{
OCIVersionMin: "1.0.0",
OCIVersionMax: specs.Version,
Annotations: map[string]string{
features.AnnotationRuncVersion: version,
features.AnnotationRuncCommit: gitCommit,
features.AnnotationRuncCheckpointEnabled: "true",
},
Hooks: configs.KnownHookNames(),
MountOptions: specconv.KnownMountOptions(),
Linux: &features.Linux{
Namespaces: specconv.KnownNamespaces(),
Capabilities: capabilities.KnownCapabilities(),
Cgroup: &features.Cgroup{
V1: &tru,
V2: &tru,
Systemd: &tru,
SystemdUser: &tru,
},
Apparmor: &features.Apparmor{
Enabled: &tru,
},
Selinux: &features.Selinux{
Enabled: &tru,
},
},
}
if seccomp.Enabled {
feat.Linux.Seccomp = &features.Seccomp{
Enabled: &tru,
Actions: seccomp.KnownActions(),
Operators: seccomp.KnownOperators(),
Archs: seccomp.KnownArchs(),
}
major, minor, patch := seccomp.Version()
feat.Annotations[features.AnnotationLibseccompVersion] = fmt.Sprintf("%d.%d.%d", major, minor, patch)
}
enc := json.NewEncoder(context.App.Writer)
enc.SetIndent("", " ")
return enc.Encode(feat)
},
}