How to configure virt-who in VDSM mode to work with RHEL-H or RHV-H?

Solution Verified - Updated 11 Mar 2022

Environment

Red Hat Enterprise Virtualization 3.5, 3.6
- Red Hat Enterprise Linux 6.5+, 7.x as hypervisor (RHEL-H)
Red Hat Virtualization 4.x
- Red Hat Enterprise Linux 7.x as hypervisor (RHEL-H)
- Red Hat Enterprise Virtualization Host as hypervisor (RHVH)
Subscription
- Red Hat Enterprise Linux for Virtual Datacenters
- Red Hat Enterprise Linux with Smart Virtualization and Management
Red Hat Satellite 6.1+
virt-who >=0.12-10

Issue

How to install virt-who to work with RHEV 3.6 or earlier and RHEL-H (NOT RHEV-H)?
How to install virt-who to work with RHV 4.x and RHEL-H or RHV-H?
How to use single Red Hat Enterprise Linux Server (Unlimited Guests) for RHEL-H and for hypervisor profile?
How to configure virt-who in the VDSM mode to avoid duplicate profiles of RHVH/RHEL-H on the Satellite server?
How to install and configure virt-who to subscribe both RHV-H 4.X and guests systems running underneath it ?

Resolution

Instructions for RHEL-H (RHEV 3.6 and earlier)

See Configuring virt-who to Connect to a Red Hat Enterprise Linux Hypervisor for more information.

Instructions for RHVH 4.1

As RHVH is a read-write filesystem, RPM packages can be directly installed on it. Install consumer RPM (http://satellite.example.com/pub/katello-ca-consumer-latest.noarch.rpm) and register it with Red Hat Satellite 6 server.
Attach Red Hat Enterprise Linux Server (Unlimited Guests) or equivalent subscription which provides 1 Physical and Unlimited Guest subscription to the hypervisor profile.
By default, virt-who is installed on RHVH 4.1 hypervisor, so directly follow the instructions for configuring listed below
```
  # rpm -qa |grep virt-who
  virt-who-0.12-10.el6.noarch
```

Edit the virt-who configuration file and enable only the below parameters.

  # cat /etc/sysconfig/virt-who |grep -v ^#
  VIRTWHO_BACKGROUND=1
  VIRTWHO_DEBUG=1
  VIRTWHO_INTERVAL=15 <-- For test only! (optional, default value is 3600 (seconds) )
  VIRTWHO_SATELLITE6=1

Create a new configuration file inside /etc/virt-who.d/

  # cat /etc/virt-who.d/rhv.conf
  [FQDN of the hypervisor]
  type=vdsm
  hypervisor_id=hostname

After completing the above steps, restart the virt-who service.
```
  # systemctl restart virt-who
```

Try to register guests created on the hypervisor and confirm whether they are using a subscription attached to the hypervisor or not.

  # rpm -Uvh install http://satellite.example.com/pub/katello-ca-consumer-latest.noarch.rpm
  # subscription-manager register --org="Organization" --auto-attach

Instructions for RHVH 4.4 on RHEL 8.2

The support for vdsm mode configuration has been removed from the virt-who package that ships with RHVH 4.4 i.e. virt-who-0.27.6-1.el8.noarch.
In this scenario, to achieve the desired outcome, all the steps for configuring virt-who should be the same as RHVH 4.1, except for one small change in the configuration file.
- Ensure that the virt-who configuration looks as displayed below i.e. no specific type set so that It can use the default type as libvirt.
```
      # cat /etc/virt-who.d/rhv.conf
      [FQDN of the hypervisor]
      hypervisor_id=hostname
```

For more KB articles/solutions related to Virt-who and Virtual Datacenter (VDC) Subscriptions Issues, please refer to the Consolidated Troubleshooting Article for Virt-who and Virtual Datacenter (VDC) Subscriptions Issues

SBR

SysMgmt

Product(s)

Red Hat Satellite

Category

Configure

Tags

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