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 set up and configure your VM on a cluster of servers in a cloud deployment:

  1. Verify that each node in your cluster—the master node and two worker nodes—meets the VM requirements.

    ResourceMinimum Requirements
    ProcessorFour (4) virtual CPUs
    Memory8 GB RAM
    Local disk storage64 GB
    Network interface speed1 Gb NIC
    HypervisorKVM/QCOW (QEMU Copy on Write) image for servers running CentOS, Ubuntu, and RedHat operating systems
  2. Confirm that the required ports are open for communications. The OPTA must be able to initiate HTTPS connections (destination TCP port 443) to the netq.nvidia.com domain (*.netq.nvidia.com). You must also open the following ports on your NetQ OPTA:

    Port or Protocol NumberProtocolComponent Access
    4IP ProtocolCalico networking (IP-in-IP Protocol)
    22TCPSSH
    80TCPNginx
    179TCPCalico networking (BGP)
    443TCPNginx
    2379TCPetcd datastore
    4789UDPCalico networking (VxLAN)
    5000TCPDocker registry
    6443TCPkube-apiserver
    31980TCPNetQ Agent communication
    31982TCPNetQ Agent SSL communication
    32708TCPAPI Gateway
    The following ports are used for internal cluster communication and must also be open between servers in your cluster:

    PortProtocolComponent Access
    8080TCPAdmin API
    5000TCPDocker registry
    6443TCPKubernetes API server
    10250TCPkubelet health probe
    2379TCPetcd
    2380TCPetcd

  3. Download the NetQ Platform image.

    1. On the NVIDIA Application Hub, log in to your account.
    2. Select NVIDIA Licensing Portal.
    3. Select Software Downloads from the menu.
    4. Click Product Family and select NetQ.
    5. Locate the NetQ SW 4.8 KVM Cloud image and select Download.
    6. If prompted, agree to the license agreement and proceed with the download.

    For enterprise customers, if you do not see a link to the NVIDIA Licensing Portal on the NVIDIA Application Hub, contact NVIDIA support.


    For NVIDIA employees, download NetQ directly from the NVIDIA Licensing Portal.

  4. Set up and configure your VM.

    Open your hypervisor and set up your VM. You can use this example for reference or use your own hypervisor instructions.

    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/netq-4.8.0-ubuntu-20.04-tscloud-qemu.qcow2
      $ FE353FC06D3F843F4041D74C853D38B0A56036C5886F6233A3ED1A9464AEB783 ./Downloads/netq-4.8.0-ubuntu-20.04-tscloud-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/netq-4.8.0-ubuntu-20.04-tscloud-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
  5. Log in to the VM and change the password.

    Use the default credentials to log in the first time:

    • Username: cumulus
    • Password: cumulus
    $ ssh cumulus@<ipaddr>
    Warning: Permanently added '<ipaddr>' (ECDSA) to the list of known hosts.
    Ubuntu 18.04.5 LTS
    cumulus@<ipaddr>'s password:
    You are required to change your password immediately (root enforced)
    System information as of Thu Dec  3 21:35:42 UTC 2020
    System load:  0.09              Processes:           120
    Usage of /:   8.1% of 61.86GB   Users logged in:     0
    Memory usage: 5%                IP address for eth0: <ipaddr>
    Swap usage:   0%
    WARNING: Your password has expired.
    You must change your password now and login again!
    Changing password for cumulus.
    (current) UNIX password: cumulus
    Enter new UNIX password:
    Retype new UNIX password:
    passwd: password updated successfully
    Connection to <ipaddr> closed.
    

    Log in again with your new password.

    $ ssh cumulus@<ipaddr>
    Warning: Permanently added '<ipaddr>' (ECDSA) to the list of known hosts.
    Ubuntu 18.04.5 LTS
    cumulus@<ipaddr>'s password:
      System information as of Thu Dec  3 21:35:59 UTC 2020
      System load:  0.07              Processes:           121
      Usage of /:   8.1% of 61.86GB   Users logged in:     0
      Memory usage: 5%                IP address for eth0: <ipaddr>
      Swap usage:   0%
    Last login: Thu Dec  3 21:35:43 2020 from <local-ipaddr>
    cumulus@ubuntu:~$
    
  6. Verify the master node is ready for installation. Fix any errors indicated before installing the NetQ software.

    cumulus@hostname:~$ sudo opta-check-cloud
  7. Change the hostname for the VM from the default value.

    The default hostname for the NetQ Virtual Machines is ubuntu. Change the hostname to fit your naming conventions while meeting Internet and Kubernetes naming standards.

    Kubernetes requires that hostnames are composed of a sequence of labels concatenated with dots. For example, “en.wikipedia.org” is a hostname. Each label must be from 1 to 63 characters long. The entire hostname, including the delimiting dots, has a maximum of 253 ASCII characters.

    The Internet standards (RFCs) for protocols specify that labels may contain only the ASCII letters a through z (in lower case), the digits 0 through 9, and the hyphen-minus character ('-').

    Use the following command:

    cumulus@hostname:~$ sudo hostnamectl set-hostname NEW_HOSTNAME

    Add the same NEW_HOSTNAME value to /etc/hosts on your VM for the localhost entry. Example:

    127.0.0.1 localhost NEW_HOSTNAME
  8. Verify that your first worker node meets the VM requirements, as described in step 1.

  9. Confirm that the required ports are open for communications, as described in step 2.

  10. Open your hypervisor and set up 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. You need it for later installation steps.

  11. Verify the worker node is ready for installation. Fix any errors indicated before installing the NetQ software.

    cumulus@hostname:~$ sudo opta-check-cloud
  12. Repeat steps 8 through 11 for each additional worker node in your cluster.

  13. Install and activate the NetQ software using the CLI:

Run the following command on your master node to initialize the cluster. Copy the output of the command to use on your worker nodes:

cumulus@<hostname>:~$ netq install cluster master-init
    Please run the following command on all worker nodes:
    netq install cluster worker-init c3NoLXJzYSBBQUFBQjNOemFDMXljMkVBQUFBREFRQUJBQUFCQVFDM2NjTTZPdVVUWWJ5c2Q3NlJ4SHdseHBsOHQ4N2VMRWVGR05LSWFWVnVNcy94OEE4RFNMQVhKOHVKRjVLUXBnVjdKM2lnMGJpL2hDMVhmSVVjU3l3ZmhvVDVZM3dQN1oySVZVT29ZTi8vR1lOek5nVlNocWZQMDNDRW0xNnNmSzVvUWRQTzQzRFhxQ3NjbndIT3dwZmhRYy9MWTU1a
    

Run the netq install cluster worker-init <ssh-key> on each of your worker nodes.

Run the following command on your NetQ cloud appliance with the config-key obtained from the email you received from NVIDIA titled NetQ Access Link. You can also obtain the configuration key through the NetQ UI.

cumulus@<hostname>:~$ netq install opta cluster full interface eth0 bundle /mnt/installables/NetQ-4.8.0-opta.tgz config-key <your-config-key> workers <worker-1-ip> <worker-2-ip> [proxy-host <proxy-hostname> proxy-port <proxy-port>]
    

You can specify the IP address instead of the interface name here: use ip-addr <IP address> in place of interface <ifname> above.

If you have changed the IP address or hostname of the NetQ OPTA 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 install CLI on the appliance. This example uses interface eth0. Replace this with your updated IP address, hostname or interface using the interface or ip-addr option.

cumulus@hostname:~$ netq install opta cluster full interface eth0 bundle /mnt/installables/NetQ-4.8.0-opta.tgz config-key <your-config-key> workers <worker-1-ip> <worker-2-ip> [proxy-host  proxy-port ]

If this step fails for any reason, you can run netq bootstrap reset and then try again.

Consider the following for container environments, and make adjustments as needed.

Calico Networking

NetQ overrides the Calico default address range and changes it to 10.244.0.0/16. To modify this range, use the netq install opta command, specifying the default address range with the pod-ip-range option. For example:

cumulus@hostname:~$ netq install opta standalone full interface eth0 bundle /mnt/installables/NetQ-4.8.0-opta.tgz config-key <your-config-key> pod-ip-range 10.255.0.0/16

Docker Default Bridge Interface

The default Docker bridge interface is disabled in NetQ. If you need to reenable the interface, contact support.

Verify Installation Status

To view the status of the installation, use the netq show status [verbose] command. The following example shows a successful on-premises installation:

State: Active
    Version: 4.8.0
    Installer Version: 4.8.0
    Installation Type: Standalone
    Activation Key: PKrgipMGEhVuZXRxLWVuZHBvaW50LWdhdGV3YXkYsagDIixUQmFLTUhzZU80RUdTL3pOT01uQ2lnRnrrUhTbXNPUGRXdnUwTVo5SEpBPTIHZGVmYXVsdDoHbmV0cWRldgz=
    Master SSH Public Key: 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
    Is Cloud: False
    
    Cluster Status:
    IP Address     Hostname       Role    Status
    -------------  -------------  ------  --------
    10.188.44.147  10.188.44.147  Role    Ready
    
    NetQ... Active
    

Run the netq show opta-health command to verify all applications are operating properly. Allow 10-15 minutes for all applications to come up and report their status.

cumulus@hostname:~$ netq show opta-health
    Application                                            Status    Namespace      Restarts    Timestamp
    -----------------------------------------------------  --------  -------------  ----------  ------------------------
    cassandra-rc-0-w7h4z                                   READY     default        0           Fri Apr 10 16:08:38 2020
    cp-schema-registry-deploy-6bf5cbc8cc-vwcsx             READY     default        0           Fri Apr 10 16:08:38 2020
    kafka-broker-rc-0-p9r2l                                READY     default        0           Fri Apr 10 16:08:38 2020
    kafka-connect-deploy-7799bcb7b4-xdm5l                  READY     default        0           Fri Apr 10 16:08:38 2020
    netq-api-gateway-deploy-55996ff7c8-w4hrs               READY     default        0           Fri Apr 10 16:08:38 2020
    netq-app-address-deploy-66776ccc67-phpqk               READY     default        0           Fri Apr 10 16:08:38 2020
    netq-app-admin-oob-mgmt-server                         READY     default        0           Fri Apr 10 16:08:38 2020
    netq-app-bgp-deploy-7dd4c9d45b-j9bfr                   READY     default        0           Fri Apr 10 16:08:38 2020
    netq-app-clagsession-deploy-69564895b4-qhcpr           READY     default        0           Fri Apr 10 16:08:38 2020
    netq-app-configdiff-deploy-ff54c4cc4-7rz66             READY     default        0           Fri Apr 10 16:08:38 2020
    ...
    

If any of the applications or services display Status as DOWN after 30 minutes, open a support ticket and attach the output of the opta-support command.

After NetQ is installed, you can log in to NetQ from your browser.