69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
package daemon // import "github.com/docker/docker/daemon"
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import (
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"context"
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"fmt"
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"sync/atomic"
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"github.com/docker/docker/api/server/router/system"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/filters"
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)
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// SystemDiskUsage returns information about the daemon data disk usage
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func (daemon *Daemon) SystemDiskUsage(ctx context.Context, opts system.DiskUsageOptions) (*types.DiskUsage, error) {
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if !atomic.CompareAndSwapInt32(&daemon.diskUsageRunning, 0, 1) {
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return nil, fmt.Errorf("a disk usage operation is already running")
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}
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defer atomic.StoreInt32(&daemon.diskUsageRunning, 0)
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var err error
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var containers []*types.Container
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if opts.Containers {
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// Retrieve container list
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containers, err = daemon.Containers(&types.ContainerListOptions{
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Size: true,
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All: true,
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})
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if err != nil {
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return nil, fmt.Errorf("failed to retrieve container list: %v", err)
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}
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}
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var (
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images []*types.ImageSummary
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layersSize int64
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)
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if opts.Images {
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// Get all top images with extra attributes
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images, err = daemon.imageService.Images(ctx, types.ImageListOptions{
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Filters: filters.NewArgs(),
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SharedSize: true,
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ContainerCount: true,
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})
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if err != nil {
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return nil, fmt.Errorf("failed to retrieve image list: %v", err)
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}
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layersSize, err = daemon.imageService.LayerDiskUsage(ctx)
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if err != nil {
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return nil, err
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}
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}
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var volumes []*types.Volume
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if opts.Volumes {
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volumes, err = daemon.volumes.LocalVolumesSize(ctx)
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if err != nil {
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return nil, err
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}
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}
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return &types.DiskUsage{
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LayersSize: layersSize,
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Containers: containers,
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Volumes: volumes,
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Images: images,
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}, nil
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}
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