It is a specification for the various parts of what makes up a container. All container runtimes and images out there implement the specification so there's por

It is a specification for the various parts of what makes up a container. All container runtimes and images out there implement the specification so there's portability amongst tools: https://www.opencontainers.org https://www.opencontainers.org https://github.com/opencontainers/runtime-spec/blob/master/implementations.md https://github.com/opencontainers/runtime-spec/blob/master/i... https://github.com/opencontainers/image-spec/blob/master/implementations.md https://github.com/opencontainers/image-spec/blob/master/imp...