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package docker
import (
"context"
"encoding/json"
"net/http"
)
// VolumeUsageData represents usage data from the docker system api
// More Info Here https://dockr.ly/2PNzQyO
type VolumeUsageData struct {
// The number of containers referencing this volume. This field
// is set to `-1` if the reference-count is not available.
//
// Required: true
RefCount int64 `json:"RefCount"`
// Amount of disk space used by the volume (in bytes). This information
// is only available for volumes created with the `"local"` volume
// driver. For volumes created with other volume drivers, this field
// is set to `-1` ("not available")
//
// Required: true
Size int64 `json:"Size"`
}
// ImageSummary represents data about what images are
// currently known to docker
// More Info Here https://dockr.ly/2PNzQyO
type ImageSummary struct {
Containers int64 `json:"Containers"`
Created int64 `json:"Created"`
ID string `json:"Id"`
Labels map[string]string `json:"Labels"`
ParentID string `json:"ParentId"`
RepoDigests []string `json:"RepoDigests"`
RepoTags []string `json:"RepoTags"`
SharedSize int64 `json:"SharedSize"`
Size int64 `json:"Size"`
VirtualSize int64 `json:"VirtualSize"`
}
// DiskUsage holds information about what docker is using disk space on.
// More Info Here https://dockr.ly/2PNzQyO
type DiskUsage struct {
LayersSize int64
Images []*ImageSummary
Containers []*APIContainers
Volumes []*Volume
}
// DiskUsageOptions only contains a context for canceling.
type DiskUsageOptions struct {
Context context.Context
}
// DiskUsage returns a *DiskUsage describing what docker is using disk on.
//
// More Info Here https://dockr.ly/2PNzQyO
func (c *Client) DiskUsage(opts DiskUsageOptions) (*DiskUsage, error) {
path := "/system/df"
resp, err := c.do(http.MethodGet, path, doOptions{context: opts.Context})
if err != nil {
return nil, err
}
defer resp.Body.Close()
var du *DiskUsage
if err := json.NewDecoder(resp.Body).Decode(&du); err != nil {
return nil, err
}
return du, nil
}
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