LXD Add support for CentOS 8

[feldsam]

Description
Hello, there are still bugs in LXD implementation. I am downloaded CentoOS 8 image from Marketplace right now and instatiate it.

• VNC doesnt work, until I add "bash" as command in VNC section.
• Network contexualization doesnt work, no IP addresses assigned.
• Looks like, there is problem in downloader script, because no contexualization packages are installed

Details

• Hypervisor: LXD
• Version: 5.10

Progress Status

• Branch created
• Code committed to development branch
• Testing - QA
• Documentation
• Release notes - resolved issues, compatibility, known issues
• Code committed to upstream release/hotfix branches
• Documentation committed to upstream release/hotfix branches

[dann1]

VNC doesnt work, until I add "bash" as command in VNC section.

Yes, that is related to the CentOS running inside the container itself. There is a note about that

Network contexualization doesnt work, no IP addresses assigned.
Looks like, there is problem in downloader script, because no contexualization packages are installed

At the moment CentOS 8 isn't processed at all in the auto-contextualizator

one/src/datastore_mad/remotes/lxd_downloader.sh

Lines 184 to 221 in 0586132

	*centos/6*)
	terminal="/bin/bash"
	commands=$(cat <<EOC
	export PATH=\$PATH:/bin:/sbin
	echo "nameserver $DNS_SERVER" > /etc/resolv.conf
	[ ! -e /dev/random ] && mknod -m 666 /dev/random c 1 8 >> /var/log/chroot.log 2>&1
	[ ! -e /dev/urandom ] && mknod -m 666 /dev/urandom c 1 9 >> /var/log/chroot.log 2>&1
	yum install $PKG_CENTOS6 -y >> /var/log/chroot.log 2>&1
	$CURL $CONTEXT_URL/v$selected_tag/one-context-$selected_tag-1.el6.noarch.rpm -Lsfo /root/context.rpm >> /var/log/chroot.log 2>&1
	yum install /root/context.rpm -y >> /var/log/chroot.log 2>&1
	rm /root/context.rpm
	rm /dev/random /dev/urandom
	EOC
	)
	;;
	*centos/7*)
	terminal="/bin/bash"
	commands=$(cat <<EOC
	echo "nameserver $DNS_SERVER" > /etc/resolv.conf
	[ ! -e /dev/random ] && mknod -m 666 /dev/random c 1 8 >> /var/log/chroot.log 2>&1
	[ ! -e /dev/urandom ] && mknod -m 666 /dev/urandom c 1 9 >> /var/log/chroot.log 2>&1
	yum install $PKG_RPM -y >> /var/log/chroot.log 2>&1
	$CURL $CONTEXT_URL/v$selected_tag/one-context-$selected_tag-1.el7.noarch.rpm -Lsfo /root/context.rpm >> /var/log/chroot.log 2>&1
	yum install /root/context.rpm -y >> /var/log/chroot.log 2>&1
	rm /root/context.rpm
	rm /dev/random /dev/urandom
	EOC
	)
	;;

. You can try and duplicate the centos/7 entry and attempt to make it work.

[dann1]

IT could be possible however, in order to avoid, at least a bit (sometimes there are special needs for a certain OS), the static entries per OS, to make the last version match a wider set. For example,

*centos/6*) 
...
*centos/*) 

And and an entry if a different procedure is required. It would at least try to install the context package, and not skip it.

[dann1]

In any case, this is not a set of bugs. We will however, add support for CentOS 8.