1. About Docker¶
Container running on Docker Engine
Server running Docker Engine, see also Docker 0
- Docker 0
Server running Docker Engine
1.3. Docker image vs container¶
Ready to run Operating System with pre-installed software
Running instance of an image
Diff between outputs of Dockerfile
RUNcommand while building an image
1.5. Open Container Initiative¶
The Open Container Initiative is an open governance structure for the express purpose of creating open industry standards around container formats and runtimes.
Established in June 2015 by Docker and other leaders in the container industry, the OCI currently contains two specifications: the Runtime Specification (runtime-spec) and the Image Specification (image-spec). The Runtime Specification outlines how to run a “filesystem bundle” that is unpacked on disk. At a high-level an OCI implementation would download an OCI Image then unpack that image into an OCI Runtime filesystem bundle. At this point the OCI Runtime Bundle would be run by an OCI Runtime.