podman/pkg/bindings/images/push.go

102 lines
2.5 KiB
Go

package images
import (
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"os"
"strconv"
imageTypes "github.com/containers/image/v5/types"
"github.com/containers/podman/v4/pkg/auth"
"github.com/containers/podman/v4/pkg/bindings"
"github.com/containers/podman/v4/pkg/domain/entities"
)
// Push is the binding for libpod's endpoints for push images. Note that
// `source` must be a referring to an image in the remote's container storage.
// The destination must be a reference to a registry (i.e., of docker transport
// or be normalized to one). Other transports are rejected as they do not make
// sense in a remote context.
func Push(ctx context.Context, source string, destination string, options *PushOptions) error {
if options == nil {
options = new(PushOptions)
}
conn, err := bindings.GetClient(ctx)
if err != nil {
return err
}
header, err := auth.MakeXRegistryAuthHeader(&imageTypes.SystemContext{AuthFilePath: options.GetAuthfile()}, options.GetUsername(), options.GetPassword())
if err != nil {
return err
}
params, err := options.ToParams()
if err != nil {
return err
}
// SkipTLSVerify is special. It's not being serialized by ToParams()
// because we need to flip the boolean.
if options.SkipTLSVerify != nil {
params.Set("tlsVerify", strconv.FormatBool(!options.GetSkipTLSVerify()))
}
params.Set("destination", destination)
path := fmt.Sprintf("/images/%s/push", source)
response, err := conn.DoRequest(ctx, nil, http.MethodPost, path, params, header)
if err != nil {
return err
}
defer response.Body.Close()
if !response.IsSuccess() {
return response.Process(err)
}
var writer io.Writer
if options.GetQuiet() {
writer = io.Discard
} else if progressWriter := options.GetProgressWriter(); progressWriter != nil {
writer = progressWriter
} else {
// Historically push writes status to stderr
writer = os.Stderr
}
dec := json.NewDecoder(response.Body)
LOOP:
for {
var report entities.ImagePushStream
if err := dec.Decode(&report); err != nil {
if errors.Is(err, io.EOF) {
break
}
return err
}
select {
case <-response.Request.Context().Done():
break LOOP
default:
// non-blocking select
}
switch {
case report.Stream != "":
fmt.Fprint(writer, report.Stream)
case report.ManifestDigest != "":
options.ManifestDigest = &report.ManifestDigest
case report.Error != "":
// There can only be one error.
return errors.New(report.Error)
default:
return fmt.Errorf("failed to parse push results stream, unexpected input: %v", report)
}
}
return nil
}