On Mon, Sep 08, 2014 at 09:28:20AM -0400, Adam Young wrote: > On 09/07/2014 11:22 PM, Dusty Mabe wrote: > >Hi All, > > > >Per discussion in the #fedora-cloud meeting last Friday I would like to > >start a thread about the names of the Docker and Atomic deliverables for F21. > > > >I know of at least a few cases where there has been confusion regarding > >what deliverable has been the subject of a conversation on IRC as a result > >of the current terminology. I've seen the docker and atomic referred to as: > > > > Docker Image > > Atomic Image > > Docker Host Image > > etc... > > > >It seems like the one that sparks the most confusion is "Docker Image". > >Usually when I see "Image" I think a VM bootable image (i.e. virtualization, > >not containers/Docker). A progression from that misunderstanding could lead > >one to think that "Docker Image" is the VM disk image I can use to boot a > >host that will run the Docker daemon and thus run containers. > > > >I think it would be nice to help ourselves and our users along by separating > >the terminology a bit such that it is hard to confuse what is a VM disk > >image vs. what is an image for use with Docker. > > > >Here is a first stab at trying to make things clearer: > > > > > > Docker Container Image - base container image - can be used with docker > > Atomic Image - minimal OS, Atomic updates, aka 'Docker Host' > I've always thought container and image were two distinct things. Image and container are two distinct things. The container image is basically an image that contains a filesystem for use with containers (no kernel, etc..). A container is an isolated process that runs that uses the container image as the root filesystem. > > > Here's my take: > > > The image is the disk that is being used. The container is the > Operating System construct. The Two combinded are the instance. > > "My instance is a Fedora 21 base image running inside a KVM container." > > "My instance is a Docker image of JBoss with RHQ in it running in a > container on CentOS 7" I think you are mixing virtualization and containerization too much. Let me try to see if I can use similar statements in my own terms: "My virtual machine instance is a Fedora 21 base image running on a KVM hypervisor" "My container is running process X that is using a docker container image of JBoss with RHQ in it. The Docker daemon managing my container is running on a CentOS 7 host." Hopefully my take on this isn't wrong. Does this help at all? Dusty -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
