deploymentmanifest.go
func (s *DeploymentManifest) Tag(key string) string {
	if s.Tags == nil {
		return ""
	}
	return s.Tags[key]
}
func (s *DeploymentManifest) Tag(key string) string {
	if s.Tags == nil {
		return ""
	}
	return s.Tags[key]
}
// Tag gets the tag value for a specified key.