goharbor/harbor · error

the namespace of resource cannot be null

Error message

the namespace of resource cannot be null

What it means

Returned by the Quay adapter's PrepareForPush (src/pkg/reg/adapter/quay/adapter.go:161) when resource.Metadata is set but resource.Metadata.Repository is nil. The adapter needs Repository.Name to compute the Quay namespace (first path segment) to auto-create; a nil Repository pointer makes that impossible, so it fails before any API call to Quay.

Source

Thrown at src/pkg/reg/adapter/quay/adapter.go:161

	}, nil
}

// PrepareForPush does the prepare work that needed for pushing/uploading the resource
// eg: create the namespace or repository
func (a *adapter) PrepareForPush(resources []*model.Resource) error {
	if !a.autoCreateNs {
		return nil
	}
	namespaces := []string{}
	for _, resource := range resources {
		if resource == nil {
			return errors.New("the resource cannot be null")
		}
		if resource.Metadata == nil {
			return errors.New("the metadata of resource cannot be null")
		}
		if resource.Metadata.Repository == nil {
			return errors.New("the namespace of resource cannot be null")
		}
		if len(resource.Metadata.Repository.Name) == 0 {
			return errors.New("the name of the namespace cannot be null")
		}
		paths := strings.Split(resource.Metadata.Repository.Name, "/")
		namespace := paths[0]
		namespaces = append(namespaces, namespace)
	}

	for _, namespace := range namespaces {
		err := a.createNamespace(&model.Namespace{
			Name: namespace,
		})
		if err != nil {
			return fmt.Errorf("create namespace '%s' in Quay error: %v", namespace, err)
		}
		log.Debugf("namespace %s created", namespace)
	}

View on GitHub (pinned to 7b2fd08cc5)

Solutions

1. Always set Metadata.Repository (with a non-empty Name) for resources destined for push.
2. Validate the slice up front (see validationCode) for a precise index.
3. Assert non-nil Repository in builder unit tests.
4. When cloning source metadata, copy the Repository pointer rather than rebuilding it field-by-field.

Example fix

// before
Metadata: &model.ResourceMetadata{Vtags: []string{"latest"}},

// after
Metadata: &model.ResourceMetadata{
    Repository: &model.Repository{Name: "myteam/ubuntu"},
    Vtags:     []string{"latest"},
},

for i, r := range resources {
	if r == nil || r.Metadata == nil || r.Metadata.Repository == nil {
		return fmt.Errorf("resources[%d]: missing resource/metadata/repository", i)
	}
}

func hasRepository(r *model.Resource) bool {
	return r != nil && r.Metadata != nil && r.Metadata.Repository != nil
}

if err := a.PrepareForPush(resources); err != nil {
	if strings.Contains(err.Error(), "namespace of resource cannot be null") {
		// set Metadata.Repository before retry
	}
	return err
}

When it happens

Trigger: Passing a resource whose ResourceMetadata has Vtags/Artifact but no Repository to quay PrepareForPush with autoCreateNs enabled.

Common situations: Metadata built for tag operations reused for push; struct literals after a refactor that moved Repository into a conditional branch; clones that copy only selected fields.

Related errors

• the resource cannot be null
• the metadata of resource cannot be null
• the name of the repository cannot be null
• the resource cannot be null
• the metadata of resource cannot be null

AI-assisted analysis of goharbor/harbor@7b2fd08cc5 (2026-08-16). Data as JSON: /api/errors/82ed0bf990e30caa. Report an issue: GitHub.