#112: Ultimately reducing the tools installed in the Fedora docker image, but
first getting messaging and expectations right
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Reporter: bex | Owner:
Type: enhancement | Status: new
Priority: normal | Milestone: Future
Component: --- | Keywords:
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See: https://fedoraproject.org/wiki/User:Bex/docker_image_reduction
A quick examination of just commands loaded in /usr/bin showed significant
differences between the F21 and F22 docker images. Consensus seems to be
forming around the idea that the Fedora docker image should be composed of
a minimum install of Fedora required to get dnf running. After that all
tools desired by the consumer should be added by the consumer. This is
inline with the "one process per container" philosphy that many people use
when thinking about containers.
However, we did ship more than a minimal image with F21 and we broke that
expectation in F22. Additionally, other distributions are shipping images
that contain some "non-minimal" tools, such as 'ps' or 'vi', therefore
users may expect them be in the Fedora images.
One solution is to include these tools today, but to explicitly note that
they are not guaranteed to be included in future versions. Additionally,
we should begin to encourage a new best practice of explicitly `dnf
install`ing any tools needed. Today these installs will be noops, tomorrow
they will actually do the install.
The full list of proposed re-additions for F22 and ultimate deletions is
on the wiki page
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Ticket URL: <https://fedorahosted.org/cloud/ticket/112>
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