It's not the issue. When you copy, create, install some files
in one layer and delete them in another the files still
will be persist in the resulting image but you will not see
them the shell. It's applicable not only for buildah.
Here is some example dockerfile excerpt:
RUN wget http://some_url_with_file
RUN rm /your_file
Here we create two layers. One downloads a file and
another deletes it. Container images layers use OverlayFS
to combines multiple different underlying mount points into one.
Senior Software Quality Engineer
Management & Automation QE
On Friday, 10 September 2021 07:41:37 CEST Michael Ivanov wrote:
I am building a rootless image using buildah from some base image.
The resulting image size as shown by podman images is about 1.3Gb.
When I run the image container size reported by podman inspect --size
is also approximately the same. podman image tree shows 3 layers for
this image and the sum of space, reported for all layers also matches
But when I run du -sh / inside the container, the size reported is
just about 800Mb. Where the extra 0.5Gb has disappeared?
While building the image I delete a lot of files from base image:
can it be that even when the files are removed the space, used by
them is not actually released?
\ / | |
(OvO) | Михаил Иванов |
(^^^) | |
\^/ | E-mail: ivans(a)isle.spb.ru |
^ ^ | |
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