podmanV2: implement push

* Implement `podman-push` and `podman-image-push` for the podmanV2
  client.

* Tests for `pkg/bindings` are not possible at the time of writing as we
  don't have a local registry running.

* Implement `/images/{name}/push` compat endpoint. Tests are not
  implemented for this v2 endpoint.  It has been tested manually.

General note: The auth config extraction from the http header is not
implement for push.  Since it's not yet supported for other endpoints
either, I deferred it to future work.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/pkg/bindings/images/images.go b/pkg/bindings/images/images.go
index 470ce546c..dcb568d6b 100644
--- a/pkg/bindings/images/images.go
+++ b/pkg/bindings/images/images.go
@@ -3,6 +3,7 @@ package images
 import (
 	"context"
 	"errors"
+	"fmt"
 	"io"
 	"net/http"
 	"net/url"
@@ -283,3 +284,26 @@ func Pull(ctx context.Context, rawImage string, options entities.ImagePullOption
 
 	return pulledImages, nil
 }
+
+// Push is the binding for libpod's v2 endpoints for push images.  Note that
+// `source` must be a refering 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 entities.ImagePushOptions) error {
+	conn, err := bindings.GetClient(ctx)
+	if err != nil {
+		return err
+	}
+	params := url.Values{}
+	params.Set("credentials", options.Credentials)
+	params.Set("destination", destination)
+	if options.TLSVerify != types.OptionalBoolUndefined {
+		val := bool(options.TLSVerify == types.OptionalBoolTrue)
+		params.Set("tlsVerify", strconv.FormatBool(val))
+	}
+
+	path := fmt.Sprintf("/images/%s/push", source)
+	_, err = conn.DoRequest(nil, http.MethodPost, path, params)
+	return err
+}