Create the Data Plane VM

In this lab we are going to use pre-provisioned compute node for deployment of dataplane.

Follow the steps on this page to create a pre-provisioned compute node for use with dataplane deployment.

Make sure you are accessing hypervisor host as root user.
Sample Output
```
[root@hypervisor ~]#
```

Run below commands to create the RHEL compute on the hypervisor server:

cd /var/lib/libvirt/images
wget http://opentraining-na100.ole.redhat.com/downloads/images/rhel9-3.qcow2
cp rhel9-3.qcow2 rhel9-guest.qcow2
qemu-img info rhel9-guest.qcow2
qemu-img resize rhel9-guest.qcow2 +90G
chown -R qemu:qemu rhel9-*.qcow2
virt-customize -a rhel9-guest.qcow2 --run-command 'growpart /dev/sda 4'
virt-customize -a rhel9-guest.qcow2 --run-command 'xfs_growfs /'
virt-customize -a rhel9-guest.qcow2 --root-password password:redhat
virt-customize -a rhel9-guest.qcow2 --run-command 'systemctl disable cloud-init'
virt-customize -a /var/lib/libvirt/images/rhel9-guest.qcow2 --ssh-inject root:file:/root/.ssh/id_rsa.pub
virt-customize -a /var/lib/libvirt/images/rhel9-guest.qcow2 --selinux-relabel
qemu-img create -f qcow2 -F qcow2 -b /var/lib/libvirt/images/rhel9-guest.qcow2 /var/lib/libvirt/images/osp-compute-0.qcow2
virt-install --virt-type kvm --ram 16384 --vcpus 4 --cpu=host-passthrough --os-variant rhel8.4 --disk path=/var/lib/libvirt/images/osp-compute-0.qcow2,device=disk,bus=virtio,format=qcow2 --network network:ocp4-provisioning --network network:ocp4-net --boot hd,network --noautoconsole --vnc --name osp-compute0 --noreboot
virsh start osp-compute0

RHEL9.3 qcow2 image is made available for your convenience. Ideally you will be dowloading the image from customer portal.

Check for the IP of compute node from 192.168.123.0/24 network.

watch virsh domifaddr osp-compute0 --source agent

Sample Output

Every 2.0s: virsh domifaddr osp-compute0 --source agent                                                                                                 hypervisor: Wed Apr 17 07:03:13 2024

 Name       MAC address          Protocol     Address
-------------------------------------------------------------------------------
 lo         00:00:00:00:00:00    ipv4         127.0.0.1/8
 -          -                    ipv6         ::1/128
 eth0       52:54:00:c0:0a:26    ipv4         172.22.0.202/24
 -          -                    ipv6         fe80::16:d083:92f4:f201/64
 eth1       52:54:00:e5:ce:09    ipv4         192.168.123.61/24
 -          -                    ipv6         fe80::bfc0:e5db:a655:729f/64

(Press CTRL + C to continue)

virsh domifaddr osp-compute0 --source agent

Use the IP assigned to eth1 above in the next step.
SSH to the new VM (no password required) to configure Ethernet Devices on the new Compute.
```
ssh root@192.168.123.61
```

Setup the compute server network for static IP in 172.22.0.0/24 and 192.168.123.0/24 subnets for eth0 and eth1 interfaces respectively.

nmcli co delete 'Wired connection 1'
nmcli con add con-name "static-eth0" ifname eth0 type ethernet ip4 172.22.0.100/24 ipv4.dns "172.22.0.89"
nmcli con up "static-eth0"
nmcli co delete 'Wired connection 2'
nmcli con add con-name "static-eth1" ifname eth1 type ethernet ip4 192.168.123.61/24 ipv4.dns "192.168.123.100" ipv4.gateway "192.168.123.1"
nmcli con up "static-eth1"

Log off VM
```
logout
```
Log into the compute server via 172.22.0.0/24 network.
```
ssh root@172.22.0.100
```

Set hostname

sudo hostnamectl set-hostname edpm-compute-0.aio.example.com

Subscribe the compute node to the RHEL9.3 repositories and RHOSP18 development preview channel on satellite.

curl -ko /etc/pki/ca-trust/source/anchors/demosat-ha.infra.demo.redhat.com.ca.crt  "https://demosat-ha.infra.demo.redhat.com/pub/katello-server-ca.crt"
update-ca-trust
yum install -y "https://demosat-ha.infra.demo.redhat.com/pub/katello-ca-consumer-latest.noarch.rpm"
subscription-manager register --org="Red_Hat_RHDP_Labs"  --activationkey="demosat-smt-b1374-1711111157" --serverurl=https://demosat-ha.infra.demo.redhat.com:8443/rhsm --baseurl=https://demosat-ha.infra.demo.redhat.com/pulp/repos

sudo subscription-manager repos --disable=*
subscription-manager repos --enable=rhceph-6-tools-for-rhel-9-x86_64-rpms --enable=rhel-9-for-x86_64-baseos-rpms --enable=rhel-9-for-x86_64-appstream-rpms --enable=rhel-9-for-x86_64-highavailability-rpms --enable=openstack-dev-preview-for-rhel-9-x86_64-rpms --enable=fast-datapath-for-rhel-9-x86_64-rpms

Install podman on the compute.
```
dnf install -y podman
```

podman login registry.redhat.io

Sample output

[root@edpm-compute-0 ~]# podman login registry.redhat.io
Username: rhn-support-ashishks
Password:
Login Succeeded!

Log off from the Compute Server.
```
logout
```

Snapshot the Compute Server

virsh snapshot-create-as osp-compute0 preprovisioned

Set SSH key for root user on the compute server.

scp -o StrictHostKeyChecking=accept-new /root/.ssh/id_rsa root@192.168.123.100:/root/.ssh/id_rsa_compute
scp -o StrictHostKeyChecking=accept-new /root/.ssh/id_rsa.pub root@192.168.123.100:/root/.ssh/id_rsa_compute.pub

We had copied the id_rsa.pub key form hypervisor to compute VM while creating the VM in earlier steps on this page.