Set Up Your KVM Virtual Machine for a Cloud Server Cluster

First configure the VM on the master node, and then configure the VM on each worker node.

Follow these steps to setup and configure your VM on a cluster of servers in a cloud deployment:

Verify that your master node meets the VM requirements.

Resource	Minimum Requirements
Processor	Four (4) virtual CPUs
Memory	8 GB RAM
Local disk storage	64 GB
Network interface speed	1 Gb NIC
Hypervisor	KVM/QCOW (QEMU Copy on Write) image for servers running CentOS, Ubuntu, and RedHat operating systems

Confirm that the needed ports are open for communications.

You must open the following ports on your NetQ on-premises servers:

Port or Protocol Number	Protocol	Component Access
4	IP Protocol	Calico networking (IP-in-IP Protocol)
22	TCP	SSH
80	TCP	Nginx
179	TCP	Calico networking (BGP)
443	TCP	NetQ UI
2379	TCP	etcd datastore
4789	UDP	Calico networking (VxLAN)
5000	TCP	Docker registry
6443	TCP	kube-apiserver
30001	TCP	DPU communication
31980	TCP	NetQ Agent communication
31982	TCP	NetQ Agent SSL communication
32708	TCP	API Gateway

Additionally, for internal cluster communication, you must open these ports:

Port	Protocol	Component Access
8080	TCP	Admin API
5000	TCP	Docker registry
6443	TCP	Kubernetes API server
10250	TCP	kubelet health probe
2379	TCP	etcd
2380	TCP	etcd
7072	TCP	Kafka JMX monitoring
9092	TCP	Kafka client
7071	TCP	Cassandra JMX monitoring
7000	TCP	Cassandra cluster communication
9042	TCP	Cassandra client
7073	TCP	Zookeeper JMX monitoring
2888	TCP	Zookeeper cluster communication
3888	TCP	Zookeeper cluster communication
2181	TCP	Zookeeper client
36443	TCP	Kubernetes control plane

Download the NetQ Platform image.
1. On the MyMellanox Downloads page, select NetQ from the Software -> Cumulus Software list.
2. Click 2.4 from the Version list, and then select 2.4.1 from the submenu.
3. Select KVM (Cloud) from the HyperVisor/Platform list.
4. Scroll down to view the image, and click Download.
Setup and configure your VM.
KVM Example Configuration

This example shows the VM setup process for a system with Libvirt and KVM/QEMU installed.
1. Confirm that the SHA256 checksum matches the one posted on the NVIDIA Application Hub to ensure the image download has not been corrupted.
```
$ sha256sum ./Downloads/cumulus-netq-server-2.4.1-ts-amd64-qemu.qcow2
$ 383E976F1A0572B9556B3A93FC790222C3A278CA04D96360AC9F3878704F4371  ./Downloads/cumulus-netq-server-2.4.1-ts-amd64-qemu.qcow2
```
2. Copy the QCOW2 image to a directory where you want to run it.
  Tip: Copy, instead of moving, the original QCOW2 image that was downloaded to avoid re-downloading it again later should you need to perform this process again.
```
$ sudo mkdir /vms
$ sudo cp ./Downloads/cumulus-netq-server-2.4.1-ts-amd64-qemu.qcow2 /vms/ts.qcow2
```
3. Create the VM.
  For a Direct VM, where the VM uses a MACVLAN interface to sit on the host interface for its connectivity:
```
$ virt-install --name=netq_ts --vcpus=4 --memory=8192 --os-type=linux --os-variant=generic --disk path=/vms/ts.qcow2,format=qcow2,bus=virtio,cache=none --network=type=direct,source=eth0,model=virtio --import --noautoconsole
```
  Replace the disk path value with the location where the QCOW2 image is to reside. Replace network model value (eth0 in the above example) with the name of the interface where the VM is connected to the external network.
  
  Or, for a Bridged VM, where the VM attaches to a bridge which has already been setup to allow for external access:
```
$ virt-install --name=netq_ts --vcpus=4 --memory=8192 --os-type=linux --os-variant=generic \ --disk path=/vms/ts.qcow2,format=qcow2,bus=virtio,cache=none --network=bridge=br0,model=virtio --import --noautoconsole
```
  Replace network bridge value (br0 in the above example) with the name of the (pre-existing) bridge interface where the VM is connected to the external network.
  
  Make note of the name used during install as this is needed in a later step.
4. Watch the boot process in another terminal window.
```
$ virsh console netq_ts
```
Verify the master node is ready for installation. Fix any errors indicated before installing the NetQ software.
```
cumulus@hostname:~$ sudo opta-check-cloud
```
Run the Bootstrap CLI. Be sure to replace the eth0 interface used in this example with the interface on the server used to listen for NetQ Agents.
```
cumulus@:~$ netq bootstrap master interface eth0 tarball /mnt/installables/netq-bootstrap-2.4.1.tgz
```
Allow about five to ten minutes for this to complete, and only then continue to the next step.
If this step fails for any reason, you can run netq bootstrap reset and then try again.
If you have changed the IP address or hostname of the NetQ Cloud VM after this step, you need to re-register this address with NetQ as follows:

Reset the VM.
```
cumulus@hostname:~$ netq bootstrap reset
```
Re-run the Bootstrap CLI. This example uses interface eth0. Replace this with your updated IP address, hostname or interface using the interface or ip-addr option.
```
cumulus@:~$ netq bootstrap master interface eth0 tarball /mnt/installables/netq-bootstrap-2.4.1.tgz
```
Verify that your first worker node meets the VM requirements, as described in Step 1.
Confirm that the needed ports are open for communications, as described in Step 2.
Open your hypervisor and setup the VM in the same manner as for the master node.

Make a note of the private IP address you assign to the worker node. It is needed for later installation steps.
Verify the worker node is ready for installation. Fix any errors indicated before installing the NetQ software.
```
cumulus@hostname:~$ sudo opta-check-cloud
```
Run the Bootstrap CLI on the worker node.
```
cumulus@:~$ netq bootstrap worker tarball /mnt/installables/netq-bootstrap-2.4.1.tgz master-ip <master-ip> [password <text-password>]
```
Allow about five to ten minutes for this to complete, and only then continue to the next step.
If this step fails for any reason, you can run netq bootstrap reset on the new worker node and then try again.
Repeat Steps 7 through 11 for each additional worker node you want in your cluster.

The final step is to install and activate the Cumulus NetQ software. You can do this using the Admin UI or the CLI.

Click the installation and activation method you want to use to complete installation:

Use the Admin UI (recommended)
Use the CLI

Set Up Your KVM Virtual Machine for a Cloud Server Cluster

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