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kata-deploy: Rely directly on a centos:7 image

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Instead of relying on a centos/docker image, present only on dockerhub,
let's rely on the centos:7 image from the centos registry, and apply
the same modifications applied when generating the centos/systemd image.

The main reason for doing this is avoiding to update an image from 3
years ago, making the delta of the packages updated smaller.

If you're curious why we keep using CentOS 7 though, the reason is
because CentOS 8, and UBI images have a different systemd configuration
that works quite well when mounting the image using podman, but systemd
can't connect dbus when running on environments like AKS or even
minikube.  So, in order to be as compatible as possible, let's keep
using the CentOS 7 image for now, at least till we find a suitable
substitute for that.

Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
This commit is contained in:
Fabiano Fidêncio 2021-08-05 20:10:22 +02:00
parent 15e0a3c8f0
commit f87cee9d11
1 changed files with 19 additions and 1 deletions
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20
tools/packaging/kata-deploy/Dockerfile
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@ -2,7 +2,25 @@
#
# SPDX-License-Identifier: Apache-2.0
FROM centos/systemd
FROM registry.centos.org/centos:7 AS base
ENV container docker
RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
rm -f /lib/systemd/system/multi-user.target.wants/*; \
rm -f /etc/systemd/system/*.wants/*; \
rm -f /lib/systemd/system/local-fs.target.wants/*; \
rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
rm -f /lib/systemd/system/basic.target.wants/*; \
rm -f /lib/systemd/system/anaconda.target.wants/*;
VOLUME [ "/sys/fs/cgroup" ]
CMD ["/usr/sbin/init"]
FROM base
ARG KUBE_ARCH=amd64
ARG KATA_ARTIFACTS=./kata-static.tar.xz
ARG DESTINATION=/opt/kata-artifacts