How to install lvm on redhat

How do you install oVirt Open Virtualization Manager on CentOS 8?

oVirt is a free and open source distributed virtualization solution that can be used to manage your entire infrastructure. It is based on Red Hat Enterprise Virtualization and enables you to manage virtual machines, computing, storage and network resources via the web-based interface. It uses the KVM hypervisor and builds on several other community projects including libvirt, Gluster, PatternFly and Ansible.

In this tutorial we will explain how to install oVirt on the CentOS 8 server.

requirements

  • A CentOS 8 server with at least 16 GB of RAM.
  • The server is configured with a root password.

First steps

Before you begin, you need to set the FQDN host name on your system. You can do this with the following command:

hostnamectl set-hostname centos.example.com

Next you need to edit the / etc / hosts file and bind your system IP to the host name.

nano / etc / hosts

Add the following lines:

your-server-ip centos.example.com

Save and close the file when you are done.

Install required repository

Next you need to add oVirt and other required repositories in your system.

First, install the oVirt repository with the following command:

dnf install https://resources.ovirt.org/pub/yum-repo/ovirt-release44.rpm

After the installation, enable the java package tool, pki-deps, and the PostgreSQL module with the following command:

dnf module enable javapackages-tools -y dnf module enable pki-deps -y dnf module enable postgresql: 12 -y

When you're done, you can move on to the next step.

Install and set up the virtual engine

First, update the repository with the following command:

dnf update -y

Once the repository is updated, install the oVirt engine with the following command:

dnf install ovirt-engine -y

Once the installation is complete, you can configure the oVirt engine with the following command:

engine-setup

During the installation, you will be asked several questions as shown below:

- == PRODUCT OPTIONS == - Configure Cinderlib integration (Currently in tech preview) (Yes, No) [No]: Yes Configure Engine on this host (Yes, No) [Yes]: Yes Configuring ovirt-provider-ovn Also sets the Default cluster.'s default network provider to ovirt-provider-ovn. Non-Default clusters may be configured with an OVN after installation. Configure ovirt-provider-ovn (Yes, No) [Yes]: Yes Configure WebSocket Proxy on this host (Yes, No) [Yes]: Yes * Please note *: Data warehouse is required for the engine. If you choose to not configure it on this host, you have to configure it on a remote host, and then configure the engine on this host so that it can access the database of the remote data warehouse host. Configure Data Warehouse on this host (Yes, No) [Yes]: Yes Configure Grafana on this host (Yes, No) [Yes]: Yes Configure VM Console Proxy on this host (Yes, No) [Yes]: Yes - == PACKAGES == - [INFO] Checking for product updates ... [INFO] No product updates found - == NETWORK CONFIGURATION == - Host fully qualified DNS name of this server [centos.example.com]: Yes [WARNING] Host name Yes has no domain suffix [ERROR] Host name is not valid: Yes did not resolve into an IP address Host fully qualified DNS name of this server [centos.example.com]: [WARNING] Failed to resolve centos.example.com using DNS, it can be resolved only locally Setup can automatically configure the firewall on this system. Note: automatic configuration of the firewall may overwrite current settings. Do you want Setup to configure the firewall? (Yes, No) [Yes]: Yes - == DATABASE CONFIGURATION == - Where is the DWH database located? (Local, Remote) [Local]: Local Setup can configure the local postgresql server automatically for the DWH to run. This may conflict with existing applications. Would you like Setup to automatically configure postgresql and create DWH database, or prefer to perform that manually? (Automatic, Manual) [Automatic]: Where is the ovirt cinderlib database located? (Local, Remote) [Local]: Setup can configure the local postgresql server automatically for the CinderLib to run. This may conflict with existing applications. Would you like Setup to automatically configure postgresql and create CinderLib database, or prefer to perform that manually? (Automatic, Manual) [Automatic]: Where is the Engine database located? (Local, Remote) [Local]: Setup can configure the local postgresql server automatically for the engine to run. This may conflict with existing applications. Would you like Setup to automatically configure postgresql and create Engine database, or prefer to perform that manually? (Automatic, Manual) [Automatic]: - == OVIRT ENGINE CONFIGURATION == - Engine admin password: - == SUMMARY == - [INFO] Restarting httpd Please use the user '[email protected]' and password specified in order to login Web access is enabled at: http://centos.example.com:80/ovirt-engine https://centos.example.com:443/ovirt-engine Internal CA 65: FA: CD: BF : DD: 2D: F4: 99: D6: 63: 85: 80: 97: B9: 66: B9: C7: 29: 5A: F3 SSH fingerprint: SHA256: Y46liXyme5Fz / oJA9QaYY1dhK8BKeJiw1kcSjOYL204 [WARNING] Less than 16384MB is available Web access for grafana is enabled at: https://centos.example.com/ovirt-engine-grafana/ Please run the following command on the engine machine centos.example.com, for SSO to work: systemctl restart ovirt-engine - - == END OF SUMMARY == - [INFO] Stage: Clean up Lo g file is located at /var/log/ovirt-engine/setup/ovirt-engine-setup-20200830105920-2u1ydn.log [INFO] Generating answer file '/ var / lib / ovirt-engine / setup / answers / 20200830110513-setup .conf '[INFO] Stage: Pre-termination [INFO] Stage: Termination [INFO] Execution of setup completed successfully

After successful installation you should get the url of the oVirt management console and Grafana dashboard in the output above.

Configure SELinux and firewall

By default, SELinux is activated in CentOS 8. So you have to configure SELinux for oVirt. You can configure it with the following command:

setsebool -P httpd_can_network_connect 1

Next you need to allow port 80 and 443 through firewalld. You can do this with the following command:

firewall-cmd --permanent --zone public --add-port 80 / tcp firewall-cmd --permanent --zone public --add-port 443 / tcpfirewall-cmd --reload

Once you're done, you can move on to the next step.

Access to the oVirt Admin Console

Now open your web browser and enter the URL https://centos.example.com/ovirt-engine/sso/login.html. You should see the oVirt login page:

Enter the username as admin and the password you set during installation and click the button Log In. You should see the following screen:

Now click on that Administration portal. On the following screen you should see the oVirt dashboard:

conclusion

Congratulations! You have successfully installed the oVirt Engine on the CentOS 8 server. Now you can add a remote virtualization host from the oVirt console and start creating your first virtual machine from the oVirt dashboard. Don't hesitate to ask me if you have any questions.