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6c6e970187
A global system context does not make sense for the _bindings_, so remove the TODOs. [NO TESTS NEEDED] Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
package images
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import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"os"
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"strconv"
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"github.com/containers/image/v5/types"
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"github.com/containers/podman/v4/pkg/auth"
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"github.com/containers/podman/v4/pkg/bindings"
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"github.com/containers/podman/v4/pkg/domain/entities"
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"github.com/containers/podman/v4/pkg/errorhandling"
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"github.com/pkg/errors"
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)
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// Pull is the binding for libpod's v2 endpoints for pulling images. Note that
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// `rawImage` must be a reference to a registry (i.e., of docker transport or be
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// normalized to one). Other transports are rejected as they do not make sense
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// in a remote context. Progress reported on stderr
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func Pull(ctx context.Context, rawImage string, options *PullOptions) ([]string, error) {
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if options == nil {
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options = new(PullOptions)
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}
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conn, err := bindings.GetClient(ctx)
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if err != nil {
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return nil, err
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}
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params, err := options.ToParams()
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if err != nil {
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return nil, err
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}
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params.Set("reference", rawImage)
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if options.SkipTLSVerify != nil {
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params.Del("SkipTLSVerify")
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// Note: we have to verify if skipped is false.
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params.Set("tlsVerify", strconv.FormatBool(!options.GetSkipTLSVerify()))
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}
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header, err := auth.MakeXRegistryAuthHeader(&types.SystemContext{AuthFilePath: options.GetAuthfile()}, options.GetUsername(), options.GetPassword())
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if err != nil {
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return nil, err
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}
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response, err := conn.DoRequest(ctx, nil, http.MethodPost, "/images/pull", params, header)
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if err != nil {
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return nil, err
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}
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defer response.Body.Close()
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if !response.IsSuccess() {
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return nil, response.Process(err)
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}
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// Historically pull writes status to stderr
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stderr := io.Writer(os.Stderr)
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if options.GetQuiet() {
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stderr = ioutil.Discard
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}
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dec := json.NewDecoder(response.Body)
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var images []string
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var pullErrors []error
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for {
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var report entities.ImagePullReport
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if err := dec.Decode(&report); err != nil {
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if errors.Is(err, io.EOF) {
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break
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}
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report.Error = err.Error() + "\n"
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}
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select {
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case <-response.Request.Context().Done():
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break
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default:
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// non-blocking select
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}
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switch {
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case report.Stream != "":
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fmt.Fprint(stderr, report.Stream)
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case report.Error != "":
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pullErrors = append(pullErrors, errors.New(report.Error))
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case len(report.Images) > 0:
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images = report.Images
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case report.ID != "":
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default:
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return images, errors.Errorf("failed to parse pull results stream, unexpected input: %v", report)
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}
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}
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return images, errorhandling.JoinErrors(pullErrors)
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}
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