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vyos_bld 5b8e3dd7a1a8:/vyos/vyos-build [current] # ls -al build/*.iso
-rw-r--r-- 1 root root 680525824 Mar 18 08:21 build/live-image-amd64.hybrid.iso
-rw-r--r-- 1 root root 680525824 Mar 18 08:31 build/vyos-2026.03.18-0821-oci-generic-amd64.iso
vyos_bld 5b8e3dd7a1a8:/vyos/vyos-build [current] # sudo make oci
I: mount ISO build/live-image-amd64.hybrid.iso
I: extracting squashfs content
I: generate OCI container image vyos-2026.03.18-0821-oci.tar
I: to import the previously generated OCI image to your local images run:
docker import vyos-2026.03.18-0821-oci.tar vyos:2026.03.18-0821-oci --change 'CMD [/sbin/init]'
vyos_bld 5b8e3dd7a1a8:/vyos/vyos-build [current] # ls -al *.tar
-rw-r--r-- 1 root root 2039336960 Mar 18 08:38 vyos-2026.03.18-0821-oci.tar
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This saves ~50Mb for vyos-build image: 2.04Gb -> 1.99Gb
And ~19Mb for vyos image: 155Mb -> 136Mb
Docker stores all files created in each layer so
command
```
RUN wget -O /tmp/open-vmdk-master.zip https://github.com/.../master.zip && \
unzip -d /tmp/ /tmp/open-vmdk-master.zip && \
cd /tmp/open-vmdk-master/ && make && make install
```
will store open-vmdk-master.zip and /tmp/open-vmdk-master
in the image even though there is a cleanup command later:
```
RUN rm -rf /tmp/*
```
The cleanup command just makes these files invisible in last layer.
So temporary file must be removed in same RUN command
not to be stored in the image.
This commit adds such removals.
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Signed-off-by: Leonardo Amaral <contato@leonardoamaral.com.br>
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Original implementation by jtcarnes
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This implementation works, but it is on the proof-of-concept stage and requires extended testing.
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