Provisioning virtual machines on oVirt

In the orcharhino management UI, navigate to Infrastructure > Compute Resources and click Create Compute Resource.

In the Name field, enter a name for the new compute resource.

From the Provider list, select oVirt.

In the Description field, enter a description for the compute resource.

In the URL field, enter the connection URL for the oVirt Engine’s API in the following form: https://ovirt.example.com/ovirt-engine/api/v4.

In the User field, enter the name of a user with permissions to access oVirt Engine’s resources.

In the Password field, enter the password of the user.

Click Load Datacenters to populate the Datacenter list with data centers from your oVirt environment.

From the Datacenter list, select a data center.

From the Quota ID list, select a quota to limit resources available to orcharhino.

In the X509 Certification Authorities field, enter the certificate authority for SSL/TLS access. Alternatively, if you leave the field blank, a self-signed certificate is generated on the first API request by the server.

Click the Locations tab and select the location you want to use.

Click the Organizations tab and select the organization you want to use.

Click Submit to save the compute resource.

In oVirt, create a virtual machine to use for image-based provisioning in orcharhino.

On the virtual machine, install cloud-init:

# dnf install cloud-init

To the /etc/cloud/cloud.cfg file, add the following information:

datasource_list: ["NoCloud", "ConfigDrive"]

In oVirt, create an image from this virtual machine.

In the orcharhino management UI, navigate to Infrastructure > Compute Resources and click the name of the oVirt connection.

Click Create Image.

In the Name field, enter a name for the image.

From the Operating System list, select the base operating system of the image.

From the Architecture list, select the operating system architecture.

In the Username field, enter the SSH user name for image access. This is normally the root user.

In the Password field, enter the SSH password for image access.

From the Image list, select an image from the oVirt compute resource.

Optional: Select the User Data checkbox if the image supports user data input, such as cloud-init data.

Click Submit to save the image details.

In the orcharhino management UI, navigate to Hosts > Templates > Provisioning Templates, and click Create Template.

In the Name field, enter a name for the template.

In the Editor field, enter the following template details:

<%#
kind: user_data
name: Cloud-init
-%>
#cloud-config
hostname: <%= @host.shortname %>

<%# Allow user to specify additional SSH key as host parameter -%>
<% if @host.params['sshkey'].present? || @host.params['remote_execution_ssh_keys'].present? -%>
ssh_authorized_keys:
<% if @host.params['sshkey'].present? -%>
  - <%= @host.params['sshkey'] %>
<% end -%>
<% if @host.params['remote_execution_ssh_keys'].present? -%>
<% @host.params['remote_execution_ssh_keys'].each do |key| -%>
  - <%= key %>
<% end -%>
<% end -%>
<% end -%>
runcmd:
  - |
    #!/bin/bash
<%= indent 4 do
    snippet 'subscription_manager_registration'
end %>
<% if @host.info['parameters']['realm'] && @host.realm && @host.realm.realm_type == 'Red Hat Identity Management' -%>
  <%= indent 4 do
    snippet 'freeipa_register'
  end %>
<% end -%>
<% unless @host.operatingsystem.atomic? -%>
    # update all the base packages from the updates repository
    yum -t -y -e 0 update
<% end -%>
<%
    # safemode renderer does not support unary negation
    non_atomic = @host.operatingsystem.atomic? ? false : true
    pm_set = @host.puppetmaster.empty? ? false : true
    puppet_enabled = non_atomic && (pm_set || @host.params['force-puppet'])
%>
<% if puppet_enabled %>
    yum install -y puppet
    cat > /etc/puppet/puppet.conf << EOF
  <%= indent 4 do
    snippet 'puppet.conf'
  end %>
    EOF
    # Setup puppet to run on system reboot
    /sbin/chkconfig --level 345 puppet on

    /usr/bin/puppet agent --config /etc/puppet/puppet.conf --onetime --tags no_such_tag <%= @host.puppetmaster.blank? ? '' : "--server #{@host.puppetmaster}" %> --no-daemonize
    /sbin/service puppet start
<% end -%>
phone_home:
 url: <%= foreman_url('built') %>
 post: []
 tries: 10pp

Click the Type tab and from the Type list, select User data template.

Click the Association tab, and from the Applicable Operating Systems list, select the operating system that you want associate with the template.

Click the Locations tab, and from the Locations list, select the location that you want to associate with the template.

Click the Organizations tab, and from the Organization list, select the organization that you want to associate with the template.

Click Submit.

In the orcharhino management UI, navigate to Hosts > Provisioning Setup > Operating Systems.

Select the operating system you want to associate with the template.

Click the Templates tab, and from the User data template list, select the name of the new template.

Click Submit.

In the orcharhino management UI, navigate to Infrastructure > Compute Profiles.

In the Compute Profiles window, click the name of an existing compute profile, or click Create Compute Profile, enter a Name, and click Submit.

Click the name of the oVirt compute resource.

From the Cluster list, select the target host cluster in the oVirt environment.

From the Template list, select the oVirt template to use for the Cores and Memory settings.

In the Cores field, enter the number of CPU cores to allocate to the new host.

In the Memory field, enter the amount of memory to allocate to the new host.

From the Image list, select image to use for image-based provisioning.

In the Network Interfaces area, enter the network parameters for the host’s network interface. You can create multiple network interfaces. However, at least one interface must point to a orcharhino Proxy-managed network. For each network interface, enter the following details:

In the Storage area, enter the storage parameters for the host. You can create multiple volumes for the host. For each volume, enter the following details:

Click Submit to save the compute profile.

To create a compute profile, enter the following command:

# hammer compute-profile create --name "oVirt CP"

To set the values for the compute profile, enter the following command:

# hammer compute-profile values create --compute-profile "oVirt CP" \
--compute-resource "My_oVirt" \
--interface "compute_interface=Interface_Type,compute_name=eth0,compute_network=satnetwork" \
--volume "size_gb=20G,storage_domain=Data,bootable=true" \
--compute-attributes "cluster=Default,cores=1,memory=1073741824,start=true""

In the orcharhino management UI, navigate to Hosts > Create Host.

In the Name field, enter a name for the host.

Optional: Click the Organization tab and change the organization context to match your requirement.

Optional: Click the Location tab and change the location context to match your requirement.

From the Host Group list, select a host group that you want to assign your host to. That host group will populate the form.

From the Deploy on list, select the oVirt connection.

From the Compute Profile list, select a profile to use to automatically populate virtual machine settings. The oVirt-specific fields are populated with settings from your compute profile. Modify these settings if required.

Click the Interfaces tab, and on the interface of the host, click Edit.

Verify that the fields are populated with values. Note in particular:

Click OK to save. To add another interface, click Add Interface. You can select only one interface for Provision and Primary.

Click the Operating System tab, and confirm that all fields automatically contain values.

Select the Provisioning Method that you want to use:

Click Resolve in Provisioning templates to check the new host can identify the right provisioning templates to use.

Click the Virtual Machine tab and confirm that these settings are populated with details from the host group and compute profile. Modify these settings to suit your needs.

Click the Parameters tab, and ensure that a parameter exists that provides an activation key. If not, add an activation key.

Click Submit to save the host entry.