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//go:build linux || freebsd
/*
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 plugin
import (
"errors"
"fmt"
"github.com/containerd/containerd/platforms"
"github.com/containerd/containerd/plugin"
"github.com/containerd/zfs"
)
// Config represents configuration for the zfs plugin
type Config struct {
// Root directory for the plugin
RootPath string `toml:"root_path"`
}
func init() {
plugin.Register(&plugin.Registration{
Type: plugin.SnapshotPlugin,
ID: "zfs",
Config: &Config{},
InitFn: func(ic *plugin.InitContext) (interface{}, error) {
ic.Meta.Platforms = append(ic.Meta.Platforms, platforms.DefaultSpec())
// get config
config, ok := ic.Config.(*Config)
if !ok {
return nil, errors.New("invalid zfs configuration")
}
// use default ic.Root as root path if config doesn't have a valid root path
root := ic.Root
if len(config.RootPath) != 0 {
root = config.RootPath
}
ic.Meta.Exports["root"] = root
snapshotter, err := zfs.NewSnapshotter(root)
if err != nil {
return nil, fmt.Errorf("%s: %w", err.Error(), plugin.ErrSkipPlugin)
}
return snapshotter, nil
},
})
}
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