mirror of https://github.com/containers/podman.git
103 lines
2.6 KiB
Go
103 lines
2.6 KiB
Go
package images
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
"os"
|
|
"strconv"
|
|
|
|
"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"
|
|
"github.com/containers/podman/v4/pkg/errorhandling"
|
|
)
|
|
|
|
// Pull is the binding for libpod's v2 endpoints for pulling images. Note that
|
|
// `rawImage` 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. Progress reported on stderr
|
|
func Pull(ctx context.Context, rawImage string, options *PullOptions) ([]string, error) {
|
|
if options == nil {
|
|
options = new(PullOptions)
|
|
}
|
|
conn, err := bindings.GetClient(ctx)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
params, err := options.ToParams()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
params.Set("reference", rawImage)
|
|
|
|
// 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()))
|
|
}
|
|
|
|
header, err := auth.MakeXRegistryAuthHeader(&types.SystemContext{AuthFilePath: options.GetAuthfile()}, options.GetUsername(), options.GetPassword())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
response, err := conn.DoRequest(ctx, nil, http.MethodPost, "/images/pull", params, header)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer response.Body.Close()
|
|
|
|
if !response.IsSuccess() {
|
|
return nil, 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)
|
|
var images []string
|
|
var pullErrors []error
|
|
LOOP:
|
|
for {
|
|
var report entities.ImagePullReport
|
|
if err := dec.Decode(&report); err != nil {
|
|
if errors.Is(err, io.EOF) {
|
|
break
|
|
}
|
|
report.Error = err.Error() + "\n"
|
|
}
|
|
|
|
select {
|
|
case <-response.Request.Context().Done():
|
|
break LOOP
|
|
default:
|
|
// non-blocking select
|
|
}
|
|
|
|
switch {
|
|
case report.Stream != "":
|
|
fmt.Fprint(writer, report.Stream)
|
|
case report.Error != "":
|
|
pullErrors = append(pullErrors, errors.New(report.Error))
|
|
case len(report.Images) > 0:
|
|
images = report.Images
|
|
case report.ID != "":
|
|
default:
|
|
return images, fmt.Errorf("failed to parse pull results stream, unexpected input: %v", report)
|
|
}
|
|
}
|
|
return images, errorhandling.JoinErrors(pullErrors)
|
|
}
|