On Tue, Mar 31, 2020 at 03:28:20PM +0100, Daniel P. Berrangé wrote:
Currently when creating a Dockerfile for a container, we include the
full set of base packages, along with the packages for the project
itself. If building a Perl binding, this would require us to install
the base package, libvirt packages and Perl packages. With the use
of the "--inherit libvirt-fedora-30" arg, it is possible to have a
dockerfile that only adds the Perl packages, getting everything
else from the parent image.
For example, a full Dockerfile for libvirt-go would thus be:
FROM libvirt-centos-7:latest
RUN yum install -y \
golang && \
yum autoremove -y && \
yum clean all -y
Note there is no need to set ENV either, as that's inherited from the
parent container.
Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com>
---
guests/lcitool | 108 ++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 98 insertions(+), 10 deletions(-)
While this is a conceptually useful feature, I'm not actually intending
to use it anymore. Instead the new libvirt-minimal and libvirt-dist
projets would be used to create a self-contained dockerfile for downstream
components as illustrated with
ci
https://www.redhat.com/archives/libvir-list/2020-April/msg01407.html
python
https://www.redhat.com/archives/libvir-list/2020-April/msg01418.html
perl
https://www.redhat.com/archives/libvir-list/2020-April/msg01408.html
It could still be useful if QEMU adopts lcitool since their dockerfiles
currently make use of inheritance
Regards,
Daniel
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