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//go:build !remote
package libimage
import (
"context"
"fmt"
"time"
"github.com/containers/common/pkg/config"
dockerArchiveTransport "github.com/containers/image/v5/docker/archive"
dockerDaemonTransport "github.com/containers/image/v5/docker/daemon"
"github.com/containers/image/v5/docker/reference"
"github.com/containers/image/v5/manifest"
compressiontypes "github.com/containers/image/v5/pkg/compression/types"
"github.com/containers/image/v5/transports/alltransports"
"github.com/sirupsen/logrus"
)
// PushOptions allows for customizing image pushes.
type PushOptions struct {
CopyOptions
}
// Push pushes the specified source which must refer to an image in the local
// containers storage. It may or may not have the `containers-storage:`
// prefix. Use destination to push to a custom destination. The destination
// can refer to any supported transport. If not transport is specified, the
// docker transport (i.e., a registry) is implied. If destination is left
// empty, the docker destination will be extrapolated from the source.
//
// Return storage.ErrImageUnknown if source could not be found in the local
// containers storage.
func (r *Runtime) Push(ctx context.Context, source, destination string, options *PushOptions) ([]byte, error) {
if options == nil {
options = &PushOptions{}
}
defaultConfig, err := config.Default()
if err != nil {
return nil, err
}
if options.MaxRetries == nil {
options.MaxRetries = &defaultConfig.Engine.Retry
}
if options.RetryDelay == nil {
if defaultConfig.Engine.RetryDelay != "" {
duration, err := time.ParseDuration(defaultConfig.Engine.RetryDelay)
if err != nil {
return nil, fmt.Errorf("failed to parse containers.conf retry_delay: %w", err)
}
options.RetryDelay = &duration
}
}
// Look up the local image. Note that we need to ignore the platform
// and push what the user specified (containers/podman/issues/10344).
image, resolvedSource, err := r.LookupImage(source, nil)
if err != nil {
return nil, err
}
srcRef, err := image.StorageReference()
if err != nil {
return nil, err
}
// Make sure we have a proper destination, and parse it into an image
// reference for copying.
if destination == "" {
// Doing an ID check here is tempting but false positives (due
// to a short partial IDs) are more painful than false
// negatives.
destination = resolvedSource
}
logrus.Debugf("Pushing image %s to %s", source, destination)
destRef, err := alltransports.ParseImageName(destination)
if err != nil {
// If the input does not include a transport assume it refers
// to a registry.
dockerRef, dockerErr := alltransports.ParseImageName("docker://" + destination)
if dockerErr != nil {
return nil, err
}
destRef = dockerRef
}
// docker-archive and DockerV2Schema2MediaType support only Gzip compression
// If the CompressionFormat has come from containers.conf (set as a default),
// but isn't supported for this push, we want to ignore it.
// If the CompressionFormat has come from the CLI (ForceCompressionFormat
// requires CompressionFormat to be set), we want to strip the invalid value
// so that the push attempt fails.
//
// Ideally this should all happen at a much higher layer, where the code can differentiate
// between a value coming from containers.conf vs. the CLI.
if options.CompressionFormat != nil && options.CompressionFormat.Name() != compressiontypes.GzipAlgorithmName &&
(destRef.Transport().Name() == dockerArchiveTransport.Transport.Name() ||
destRef.Transport().Name() == dockerDaemonTransport.Transport.Name() ||
options.ManifestMIMEType == manifest.DockerV2Schema2MediaType) {
options.CompressionFormat = nil
}
if r.eventChannel != nil {
defer r.writeEvent(&Event{ID: image.ID(), Name: destination, Time: time.Now(), Type: EventTypeImagePush})
}
// Buildah compat: Make sure to tag the destination image if it's a
// Docker archive. This way, we preserve the image name.
if destRef.Transport().Name() == dockerArchiveTransport.Transport.Name() {
if named, err := reference.ParseNamed(resolvedSource); err == nil {
tagged, isTagged := named.(reference.NamedTagged)
if isTagged {
options.dockerArchiveAdditionalTags = []reference.NamedTagged{tagged}
}
}
}
c, err := r.newCopier(&options.CopyOptions)
if err != nil {
return nil, err
}
defer c.Close()
return c.Copy(ctx, srcRef, destRef)
}
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