The purpose of the DockerPedia ontology is to represent software images. The ontology is a simple vocabulary with prefix docker. The ontology main classes are docker:Dockerfile, which is used to build a docker:SoftwareImage, which itself is decomposed in docker:ImageLayers. Since we aim to track the particular versions of all packages installed in an image, we distinguish the concept docker:SoftwarePackage and its respective docker:PackageVersions.
We also include the representation of docker:SoftwareVulnerabilities, which are crucial to create alerts when comparing or reusing software images.
We reuse and extend existing ontologies whenever possible. We build on the Workflow Infrastructure Conservation Using Semantics ontology (WICUS with prefix wicus), an OWL ontology network that represents the main concepts of a computational infrastructure. WICUS contains terminology for describing computational scientific experiments, including their software, hardware and computing resources; and we align our terminology to existing classes and properties. A docker:Dockerfile is defined as subclass of the more generic wicus:DeploymentScript, as each Docker file contains the set of actionable steps to be carried out during the deployment of the container.
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