Containers lifecycle, i.e. design, build and deploy, is decorated with tons of metadata. This data are commonly used to organise your architecture as by orchestration systems; Moreover, container security leverage on this data to cross check your images and alert if something does not go as expected. Semantic Data Management can help to this extents. Technologies like RDF and SPARQL can be used to query, modify and understand this metadata. They naturally foster interoperability between different technologies and support the transparency of the aforementioned processes.