oVirt - Prepping AlmaLinux 8 to be used as host in oVirt 4.5

oVirt is a project that aims to provide a distributed / clustered virtualization solution for a huge scale.

If for some reason you don't want to use the ovirt-node images provided by ovirt.org, you can install any EL8 (or EL9 for that matter) host to be a hypervisor and add them to the cluster as needed. In order to have it working as expected, there are a few things that have to be taken care of.

First, add some repositories to the host:

 [root@ovirtnode01 ~]# cat >/etc/yum.repos.d/CentOS-Stream-Extras.repo <<'EOF'  
 [cs8-extras]  
 name=CentOS Stream $releasever - Extras  
 mirrorlist=http://mirrorlist.centos.org/?release=8-stream&arch=$basearch&repo=extras&infra=$infra  
 #baseurl=http://mirror.centos.org/$contentdir/8-stream/extras/$basearch/os/  
 gpgcheck=1  
 enabled=1  
 gpgkey=https://www.centos.org/keys/RPM-GPG-KEY-CentOS-Official  
 EOF

 [root@ovirtnode01 ~]# cat >/etc/yum.repos.d/CentOS-Stream-Extras-common.repo <<'EOF'  
 [cs8-extras-common]  
 name=CentOS Stream $releasever - Extras common packages  
 mirrorlist=http://mirrorlist.centos.org/?release=8-stream&arch=$basearch&repo=extras-extras-common  
 #baseurl=http://mirror.centos.org/$contentdir/8-stream/extras/$basearch/extras-common/  
 gpgcheck=1  
 enabled=1  
 gpgkey=https://www.centos.org/keys/RPM-GPG-KEY-CentOS-SIG-Extras  
 EOF

Next, add the '8-stream' variable to '/etc/yum/vars/':

 [root@ovirtnode01 ~]# echo "8-stream" > /etc/yum/vars/stream

Ensure package consistency with the newly added repos:

 [root@ovirtnode01 ~]# dnf -4y --refresh --nobest distro-sync

Last repo(s) to install are included in the 'centos-release-ovirt45' package, so we have to install that:

 [root@ovirtnode01 ~]# dnf -4y --refresh install centos-release-ovirt45

With the repos all set up, install the 'cockpit-ovirt-dashboard'-package which pulls in all required dependencies:

 [root@ovirtnode01 ~]# dnf -4y --refresh install cockpit-ovirt-dashboard

Due to the dependency of python3.9, you will have to install some python-packages additionally in order to make everything run smooth:

 [root@ovirtnode01 ~]# pip3.9 install netaddr==0.7.19 jmespath==1.0.1

With all packages installed, enable and start cockpit.serivce and make sure it's allowed through firewalld:

 [root@ovirtnode1 ~]# systemctl enable --now libvirtd.service tuned.service cockpit.socket  
 [root@ovirtnode1 ~]# firewall-cmd --permanent --add-service cockpit  
 [root@ovirtnode1 ~]# firewall-cmd --reload

The host is now ready and you can proceed to add it to the cluster.

Sources:

https://www.ovirt.org/download/

https://www.ovirt.org/download/install_on_rhel.html

https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engine_using_the_command_line/#Red_Hat_Enterprise_Linux_hosts_SHE_cli_deploy

Feel free to comment and / or suggest a topic.

Comments

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