7 files changed, 38 insertions, 4 deletions
diff --git a/pkg/api/handlers/libpod/manifests.go b/pkg/api/handlers/libpod/manifests.go
index b0c93f3b9..fa83bbfe1 100644
--- a/pkg/api/handlers/libpod/manifests.go
+++ b/pkg/api/handlers/libpod/manifests.go
@@ -36,6 +36,7 @@ func ManifestCreate(w http.ResponseWriter, r *http.Request) {
 		Name   string   `schema:"name"`
 		Images []string `schema:"images"`
 		All    bool     `schema:"all"`
+		Amend  bool     `schema:"amend"`
 	}{
 		// Add defaults here once needed.
 	}
@@ -70,7 +71,7 @@ func ManifestCreate(w http.ResponseWriter, r *http.Request) {
 
 	imageEngine := abi.ImageEngine{Libpod: runtime}
 
-	createOptions := entities.ManifestCreateOptions{All: query.All}
+	createOptions := entities.ManifestCreateOptions{All: query.All, Amend: query.Amend}
 	manID, err := imageEngine.ManifestCreate(r.Context(), query.Name, query.Images, createOptions)
 	if err != nil {
 		utils.InternalServerError(w, err)
diff --git a/pkg/api/server/register_manifest.go b/pkg/api/server/register_manifest.go
index c22479cf9..7a55eaefe 100644
--- a/pkg/api/server/register_manifest.go
+++ b/pkg/api/server/register_manifest.go
@@ -117,6 +117,10 @@ func (s *APIServer) registerManifestHandlers(r *mux.Router) error {
 	//   name: all
 	//   type: boolean
 	//   description: add all contents if given list
+	// - in: query
+	//   name: amend
+	//   type: boolean
+	//   description: modify an existing list if one with the desired name already exists
 	// - in: body
 	//   name: options
 	//   description: options for new manifest
diff --git a/pkg/bindings/manifests/types.go b/pkg/bindings/manifests/types.go
index e23ef798d..5f2557fe1 100644
--- a/pkg/bindings/manifests/types.go
+++ b/pkg/bindings/manifests/types.go
@@ -8,7 +8,8 @@ type InspectOptions struct {
 //go:generate go run ../generator/generator.go CreateOptions
 // CreateOptions are optional options for creating manifests
 type CreateOptions struct {
-	All *bool
+	All   *bool
+	Amend *bool
 }
 
 //go:generate go run ../generator/generator.go ExistsOptions
diff --git a/pkg/bindings/manifests/types_create_options.go b/pkg/bindings/manifests/types_create_options.go
index 960332a82..09942c00a 100644
--- a/pkg/bindings/manifests/types_create_options.go
+++ b/pkg/bindings/manifests/types_create_options.go
@@ -31,3 +31,18 @@ func (o *CreateOptions) GetAll() bool {
 	}
 	return *o.All
 }
+
+// WithAmend set field Amend to given value
+func (o *CreateOptions) WithAmend(value bool) *CreateOptions {
+	o.Amend = &value
+	return o
+}
+
+// GetAmend returns value of field Amend
+func (o *CreateOptions) GetAmend() bool {
+	if o.Amend == nil {
+		var z bool
+		return z
+	}
+	return *o.Amend
+}
diff --git a/pkg/domain/entities/manifest.go b/pkg/domain/entities/manifest.go
index 126b76c62..f17079271 100644
--- a/pkg/domain/entities/manifest.go
+++ b/pkg/domain/entities/manifest.go
@@ -4,7 +4,12 @@ import "github.com/containers/image/v5/types"
 
 // ManifestCreateOptions provides model for creating manifest
 type ManifestCreateOptions struct {
+	// True when adding lists to include all images
 	All bool `schema:"all"`
+	// Amend an extant list if there's already one with the desired name
+	Amend bool `schema:"amend"`
+	// Should TLS registry certificate be verified?
+	SkipTLSVerify types.OptionalBool `json:"-" schema:"-"`
 }
 
 // ManifestAddOptions provides model for adding digests to manifest list
diff --git a/pkg/domain/infra/abi/manifest.go b/pkg/domain/infra/abi/manifest.go
index e0c11267e..7e8c86526 100644
--- a/pkg/domain/infra/abi/manifest.go
+++ b/pkg/domain/infra/abi/manifest.go
@@ -32,7 +32,15 @@ func (ir *ImageEngine) ManifestCreate(ctx context.Context, name string, images [
 
 	manifestList, err := ir.Libpod.LibimageRuntime().CreateManifestList(name)
 	if err != nil {
-		return "", err
+		if errors.Is(err, storage.ErrDuplicateName) && opts.Amend {
+			amendList, amendErr := ir.Libpod.LibimageRuntime().LookupManifestList(name)
+			if amendErr != nil {
+				return "", err
+			}
+			manifestList = amendList
+		} else {
+			return "", err
+		}
 	}
 
 	addOptions := &libimage.ManifestListAddOptions{All: opts.All}
diff --git a/pkg/domain/infra/tunnel/manifest.go b/pkg/domain/infra/tunnel/manifest.go
index 2a514861d..2e6134051 100644
--- a/pkg/domain/infra/tunnel/manifest.go
+++ b/pkg/domain/infra/tunnel/manifest.go
@@ -15,7 +15,7 @@ import (
 
 // ManifestCreate implements manifest create via ImageEngine
 func (ir *ImageEngine) ManifestCreate(ctx context.Context, name string, images []string, opts entities.ManifestCreateOptions) (string, error) {
-	options := new(manifests.CreateOptions).WithAll(opts.All)
+	options := new(manifests.CreateOptions).WithAll(opts.All).WithAmend(opts.Amend)
 	imageID, err := manifests.Create(ir.ClientCtx, name, images, options)
 	if err != nil {
 		return imageID, fmt.Errorf("error creating manifest: %w", err)