Some of the snapshotters that allow you to change their root location were already doing this, this just makes all of them follow the same pattern. Signed-off-by: Danny Canter <danny@dcantah.dev>
		
			
				
	
	
		
			62 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
//go:build linux && !no_btrfs && cgo
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/*
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   Copyright The containerd Authors.
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   Licensed under the Apache License, Version 2.0 (the "License");
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   you may not use this file except in compliance with the License.
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   You may obtain a copy of the License at
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       http://www.apache.org/licenses/LICENSE-2.0
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   Unless required by applicable law or agreed to in writing, software
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   distributed under the License is distributed on an "AS IS" BASIS,
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   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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   See the License for the specific language governing permissions and
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   limitations under the License.
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*/
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package plugin
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import (
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	"errors"
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	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
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	"github.com/containerd/containerd/v2/plugins"
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	"github.com/containerd/containerd/v2/plugins/snapshots/btrfs"
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	"github.com/containerd/platforms"
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	"github.com/containerd/plugin"
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	"github.com/containerd/plugin/registry"
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)
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// Config represents configuration for the btrfs plugin.
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type Config struct {
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	// Root directory for the plugin
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	RootPath string `toml:"root_path"`
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}
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func init() {
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	registry.Register(&plugin.Registration{
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		ID:     "btrfs",
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		Type:   plugins.SnapshotPlugin,
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		Config: &Config{},
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		InitFn: func(ic *plugin.InitContext) (interface{}, error) {
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			ic.Meta.Platforms = []ocispec.Platform{platforms.DefaultSpec()}
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			config, ok := ic.Config.(*Config)
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			if !ok {
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				return nil, errors.New("invalid btrfs configuration")
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			}
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			root := ic.Properties[plugins.PropertyRootDir]
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			if len(config.RootPath) != 0 {
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				root = config.RootPath
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			}
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			ic.Meta.Exports[plugins.SnapshotterRootDir] = root
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			return btrfs.NewSnapshotter(root)
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		},
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	})
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}
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