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package images
import (
"context"
"errors"
"io"
"net/http"
"net/url"
"strconv"
"github.com/containers/libpod/pkg/api/handlers"
"github.com/containers/libpod/pkg/bindings"
"github.com/containers/libpod/pkg/inspect"
)
// Exists a lightweight way to determine if an image exists in local storage. It returns a
// boolean response.
func Exists(ctx context.Context, nameOrID string) (bool, error) {
conn, err := bindings.GetClient(ctx)
if err != nil {
return false, err
}
response, err := conn.DoRequest(nil, http.MethodGet, "/images/%s/exists", nil, nameOrID)
if err != nil {
return false, err
}
return response.IsSuccess(), nil
}
// List returns a list of images in local storage. The all boolean and filters parameters are optional
// ways to alter the image query.
func List(ctx context.Context, all *bool, filters map[string][]string) ([]*handlers.ImageSummary, error) {
var imageSummary []*handlers.ImageSummary
conn, err := bindings.GetClient(ctx)
if err != nil {
return nil, err
}
params := url.Values{}
if all != nil {
params.Set("all", strconv.FormatBool(*all))
}
if filters != nil {
strFilters, err := bindings.FiltersToString(filters)
if err != nil {
return nil, err
}
params.Set("filters", strFilters)
}
response, err := conn.DoRequest(nil, http.MethodGet, "/images/json", params)
if err != nil {
return imageSummary, err
}
return imageSummary, response.Process(&imageSummary)
}
// Get performs an image inspect. To have the on-disk size of the image calculated, you can
// use the optional size parameter.
func GetImage(ctx context.Context, nameOrID string, size *bool) (*inspect.ImageData, error) {
conn, err := bindings.GetClient(ctx)
if err != nil {
return nil, err
}
params := url.Values{}
if size != nil {
params.Set("size", strconv.FormatBool(*size))
}
inspectedData := inspect.ImageData{}
response, err := conn.DoRequest(nil, http.MethodGet, "/images/%s/json", params, nameOrID)
if err != nil {
return &inspectedData, err
}
return &inspectedData, response.Process(&inspectedData)
}
func ImageTree(ctx context.Context, nameOrId string) error {
return bindings.ErrNotImplemented
}
// History returns the parent layers of an image.
func History(ctx context.Context, nameOrID string) ([]*handlers.HistoryResponse, error) {
var history []*handlers.HistoryResponse
conn, err := bindings.GetClient(ctx)
if err != nil {
return nil, err
}
response, err := conn.DoRequest(nil, http.MethodGet, "/images/%s/history", nil, nameOrID)
if err != nil {
return history, err
}
return history, response.Process(&history)
}
func Load(ctx context.Context, r io.Reader, name *string) (string, error) {
var id handlers.IDResponse
conn, err := bindings.GetClient(ctx)
if err != nil {
return "", err
}
params := url.Values{}
if name != nil {
params.Set("reference", *name)
}
response, err := conn.DoRequest(r, http.MethodPost, "/images/load", params)
if err != nil {
return "", err
}
return id.ID, response.Process(&id)
}
// Remove deletes an image from local storage. The optional force parameter will forcibly remove
// the image by removing all all containers, including those that are Running, first.
func Remove(ctx context.Context, nameOrID string, force *bool) ([]map[string]string, error) {
var deletes []map[string]string
conn, err := bindings.GetClient(ctx)
if err != nil {
return nil, err
}
params := url.Values{}
if force != nil {
params.Set("force", strconv.FormatBool(*force))
}
response, err := conn.DoRequest(nil, http.MethodDelete, "/images/%s", params, nameOrID)
if err != nil {
return nil, err
}
return deletes, response.Process(&deletes)
}
// Export saves an image from local storage as a tarball or image archive. The optional format
// parameter is used to change the format of the output.
func Export(ctx context.Context, nameOrID string, w io.Writer, format *string, compress *bool) error {
conn, err := bindings.GetClient(ctx)
if err != nil {
return err
}
params := url.Values{}
if format != nil {
params.Set("format", *format)
}
if compress != nil {
params.Set("compress", strconv.FormatBool(*compress))
}
response, err := conn.DoRequest(nil, http.MethodGet, "/images/%s/get", params, nameOrID)
if err != nil {
return err
}
if err := response.Process(nil); err != nil {
return err
}
_, err = io.Copy(w, response.Body)
return err
}
// Prune removes unused images from local storage. The optional filters can be used to further
// define which images should be pruned.
func Prune(ctx context.Context, filters map[string][]string) ([]string, error) {
var (
deleted []string
)
conn, err := bindings.GetClient(ctx)
if err != nil {
return nil, err
}
params := url.Values{}
if filters != nil {
stringFilter, err := bindings.FiltersToString(filters)
if err != nil {
return nil, err
}
params.Set("filters", stringFilter)
}
response, err := conn.DoRequest(nil, http.MethodPost, "/images/prune", params)
if err != nil {
return deleted, err
}
return deleted, response.Process(nil)
}
// Tag adds an additional name to locally-stored image. Both the tag and repo parameters are required.
func Tag(ctx context.Context, nameOrID, tag, repo string) error {
conn, err := bindings.GetClient(ctx)
if err != nil {
return err
}
params := url.Values{}
params.Set("tag", tag)
params.Set("repo", repo)
response, err := conn.DoRequest(nil, http.MethodPost, "/images/%s/tag", params, nameOrID)
if err != nil {
return err
}
return response.Process(nil)
}
func Build(nameOrId string) {}
// Imports adds the given image to the local image store. This can be done by file and the given reader
// or via the url parameter. Additional metadata can be associated with the image by using the changes and
// message parameters. The image can also be tagged given a reference. One of url OR r must be provided.
func Import(ctx context.Context, changes []string, message, reference, u *string, r io.Reader) (string, error) {
var id handlers.IDResponse
if r != nil && u != nil {
return "", errors.New("url and r parameters cannot be used together")
}
conn, err := bindings.GetClient(ctx)
if err != nil {
return "", err
}
params := url.Values{}
for _, change := range changes {
params.Add("changes", change)
}
if message != nil {
params.Set("message", *message)
}
if reference != nil {
params.Set("reference", *reference)
}
if u != nil {
params.Set("url", *u)
}
response, err := conn.DoRequest(r, http.MethodPost, "/images/import", params)
if err != nil {
return "", err
}
return id.ID, response.Process(&id)
}
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