On 1/25/19 9:28 AM, M A Young wrote:
> On Thu, 24 Jan 2019, Jon LaBadie wrote:
>
>> On Thu, Jan 24, 2019 at 06:46:23AM -0500, Robert P. J. Day wrote:
>>> as part of an intro tutorial i'm writing, i want to provide a recipe
>>> for installing docker-ce on fedora 29 from absolute scratch, and part
>>> of that will involve how to first get rid of every trace of any old
>>> docker- or container-related stuff.
>>>
>>> if one has no interest in preserving old containers, i'm proposing
>>> running (as sudo, naturally):
>>>
>>> $ dnf remove "*docker*"
>>> $ rm -rf /var/lib/{containerd,docker,docker-engine}
>>>
>>> i'm fairly sure that's overkill, but the point is to simulate truly
>>> starting from scratch. the above *seems* to work, is there any reason
>>> it would cause problems before i kick in with installing the proper
>>> yum repo file and running:
>>>
>>> $ dnf install docker-ce
>>>
>>> thoughts?
>> After running your "dnf remove" and "rm -rf" commands
>> run "# locate docker". There may be config files
>> left behind or other cruft in home dirs.
> If the computer has LVM partions it is probably worth checking that the
> docker-pool thin pool has been deleted, as docker can use this if there is
> space in LVM, and I don't know if uninstalling docker is enough to remove
> it.
>
> Michael Young
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atomic storage reset
I believe does the right thing. It should cleanup devicemapper as well.
BTW Could you article also explain how to use podman in place of docker
on Fedora 29.
You could expand it to, how to convert an installed docker to a podman
configuration.
Something like
for image in $(docker image -q); do
podman pull image docker-daemon:$image
dockre rmi --force $image
done
atomic storage reset
rpm -e docker\*
dnf install podman-docker
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