View source for Basic Node Setup

== Initial Setup ==
'''follow the following instructions on each node of the Ovirt Engine Cluster servers:'''<br/>
[https://www.howtoforge.com/tutorial/centos-7-minimal-server/ Install CentOS 7.2]

== Partitioning ==
[[File:Partitioning_ovirt_engine_cluster.png]]<br/>
The disk named virt is going to host the VM image of the VM that contains the OVirt Engine.
This device is passed directly to the ovirt-engine KVM.<br/>
The sync disk is used for different configuration files that are shared between the cluster nodes.
Examples are the configuration of the openVPN cluster resource.<br/>

== Software Installation ==
Download and execute script that installs required packages
<syntaxhighlight lang="bash">
wget -O - https://github.com/linuskohl/DHVLab/raw/master/scripts/ovirt-engine-cluster/install_packages.sh | bash 
</syntaxhighlight>

== Network Settings ==
Create the following setup using the [https://github.com/linuskohl/DHVLab/tree/master/configfiles/ovirt-engine-cluster/networking network configuration files].<br/>

[[File:Networking_schema_cluster.png]]


== General settings ==
<syntaxhighlight lang="bash">
#disable the NetworkManager and switch to manual configuration
systemctl stop Networkmanager
systemctl disable NetworkManager
systemctl mask NetworkManager
chkconfig network on

#disable firewalld for switching to iptables
systemctl stop firewalld
systemctl disable firewalld
systemctl mask firewalld

#disable SELinux
nano -w /etc/selinux/config
#change line SELINUX=enabled to disabled
#write with ctrl+o and ctrl+x

#configure NTP client
cat << EOT >> /etc/ntp.conf
server your.ntp.server1
server your.ntp.server2
interface ignore wildcard
interface listen 127.0.0.1
interface listen ::1
EOT

#add cron job
echo "30 * * * * root /usr/sbin/ntpd -q -u ntp:ntp" >> /etc/cron.d/ntpd
systemctl start ntpd
systemctl enable ntpd

#setup resolve.conf
cat << EOT > /etc/resolv.conf
search YOUR_DOMAIN
nameserver YOUR_PRIMARY_NS
nameserver YOUR_SECONDARY_NS
nameserver 8.8.8.8
EOT

#setup hosts configuration file
wget -O ./hosts_file https://raw.githubusercontent.com/linuskohl/DHVLab/master/configfiles/ovirt-engine-cluster/etc/hosts
#adapt using nano
nano -w ./hosts_file
#overwrite hosts file
sudo mv ./hosts_file /etc/hosts
</syntaxhighlight>

Continue with setting up the cluster and resources<br/>
[[Cluster Setup]]