containerd/cmd/ctr/commands/commands_unix.go
Derek Nola 132485adb0
Convert CLI to urfave v2
Followed the Migration Guide at https://cli.urfave.org/migrate-v1-to-v2/
The major changes not pointed out in the migration guide are:
- context.Args() no longer produces a []slice, so context.Args().Slice()
  in substitued
- All cli.Global***** are deprecated (the migration guide is somewhat
  unclear on this)

Signed-off-by: Derek Nola <derek.nola@suse.com>

Vendor in urfave cli/v2

Signed-off-by: Derek Nola <derek.nola@suse.com>

Fix NewStringSlice calls

Signed-off-by: Derek Nola <derek.nola@suse.com>
2024-02-15 09:48:04 -08:00

100 lines
3.1 KiB
Go

//go:build !windows
/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package commands
import (
"errors"
"github.com/containerd/containerd/v2/core/runtime/v2/runc/options"
runtimeoptions "github.com/containerd/containerd/v2/pkg/runtimeoptions/v1"
"github.com/urfave/cli/v2"
)
func init() {
RuntimeFlags = append(RuntimeFlags, &cli.StringFlag{
Name: "runc-binary",
Usage: "Specify runc-compatible binary",
}, &cli.StringFlag{
Name: "runc-root",
Usage: "Specify runc-compatible root",
}, &cli.BoolFlag{
Name: "runc-systemd-cgroup",
Usage: "Start runc with systemd cgroup manager",
})
ContainerFlags = append(ContainerFlags, &cli.BoolFlag{
Name: "rootfs",
Usage: "Use custom rootfs that is not managed by containerd snapshotter",
}, &cli.BoolFlag{
Name: "no-pivot",
Usage: "Disable use of pivot-root (linux only)",
}, &cli.Int64Flag{
Name: "cpu-quota",
Usage: "Limit CPU CFS quota",
Value: -1,
}, &cli.Uint64Flag{
Name: "cpu-period",
Usage: "Limit CPU CFS period",
}, &cli.StringFlag{
Name: "rootfs-propagation",
Usage: "Set the propagation of the container rootfs",
}, &cli.StringSliceFlag{
Name: "device",
Usage: "File path to a device to add to the container; or a path to a directory tree of devices to add to the container",
})
}
func getRuncOptions(context *cli.Context) (*options.Options, error) {
runtimeOpts := &options.Options{}
if runcBinary := context.String("runc-binary"); runcBinary != "" {
runtimeOpts.BinaryName = runcBinary
}
if context.Bool("runc-systemd-cgroup") {
if context.String("cgroup") == "" {
// runc maps "machine.slice:foo:deadbeef" to "/machine.slice/foo-deadbeef.scope"
return nil, errors.New("option --runc-systemd-cgroup requires --cgroup to be set, e.g. \"machine.slice:foo:deadbeef\"")
}
runtimeOpts.SystemdCgroup = true
}
if root := context.String("runc-root"); root != "" {
runtimeOpts.Root = root
}
return runtimeOpts, nil
}
func RuntimeOptions(context *cli.Context) (interface{}, error) {
// validate first
if (context.String("runc-binary") != "" || context.Bool("runc-systemd-cgroup")) &&
context.String("runtime") != "io.containerd.runc.v2" {
return nil, errors.New("specifying runc-binary and runc-systemd-cgroup is only supported for \"io.containerd.runc.v2\" runtime")
}
if context.String("runtime") == "io.containerd.runc.v2" {
return getRuncOptions(context)
}
if configPath := context.String("runtime-config-path"); configPath != "" {
return &runtimeoptions.Options{
ConfigPath: configPath,
}, nil
}
return nil, nil
}