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@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 -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|