Feature pages are design documents that developers have created while collaborating on oVirt.

Most of them areoutdated, but provide historical design context.

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Guest Agent Debian

oVirt Guest Agent on Debian 7.x

Summary

Packaging the ovirt-guest-agent for Debian 7.x

Owner

  • Name: Vinzenz ‘evilissimo’ Feenstra (Vfeenstr)

Current status

  • Last updated: ,

Detailed Description

This feature should provide ovirt-guest-agent packages for Debian

Required changes

  • Debian packaging scripts [DONE]
  • SYS-V init script for Debian [DONE]
  • Adjustments to packaging [DONE]
  • Checkbashism checks on scripts [DONE]
  • Path adjustments for the Debian environment [DONE]
  • Update package list to report for SUSE naming conventions [DONE]
  • Create wrapper scripts for elevated tasks [DONE]

Benefit to oVirt

It’ll be easier to install the ovirt-guest-agent on Debian guests.

Repository

Documentation / External references

The guest agent reports the following things

  • Current active user
  • Memory usage (including swap usage)
  • Network Interfaces
  • IP Addresses
  • FQDN of the guest OS
  • Disks Usage
  • Configured RPMs to report (see /etc/ovirt-guest-agent.conf for the packages)
  • Hostname

The guest agent also provides the following actions

  • Desktop Locking for GNOME
  • Shutdown/Reboot from within the Guest OS

Installation

  # echo "deb `[`http://download.opensuse.org/repositories/home:/evilissimo:/deb/Debian_7.0/`](http://download.opensuse.org/repositories/home:/evilissimo:/deb/Debian_7.0/)` ./" >> /etc/apt/sources.list
  # gpg -v -a --keyserver `[`http://download.opensuse.org/repositories/home:/evilissimo:/deb/Debian_7.0/Release.key`](http://download.opensuse.org/repositories/home:/evilissimo:/deb/Debian_7.0/Release.key)` --recv-keys D5C7F7C373A1A299
  # gpg --export --armor 73A1A299 | apt-key add -
  # apt-get update
  # apt-get install ovirt-guest-agent
  # service ovirt-guest-agent start

Testing

Testing has to be executed on a Debian 7 system. Lower version do not fulfil the minimal requirements for the guest agent and testing/unstable are currently not supported by us.

Verification

  • Follow the installation instructions above to install the guest agent
  • After about 15-30 seconds the Web Admin Portal entry for the VM should show:
    • the IPv4 Addresses of the VM in the grid
    • the FQDN of the VM in the grid
    • kernel package and the ovirt-guest-agent-common package in the application list
    • The FQDN in the general tab
    • Logged-in User: in the Sessions tab should be filled if a user is logged in.
    • All IPs (IPv4 and IPv6) in the Network Interfaces tab in the Guest Agent Data section for each interface.
  • Verification via on the VDSM side: `vdsClient -s 0 getVmStats \`
    • Reported fields are non-empty:
      • guestFQDN
      • netIfaces
      • disksUsage
      • memoryStats
      • guestName
      • appsList
      • guestOs
      • username
      • guestIPs (if there are IPv4 addresses)

Note: The VM UUID can be found on the Admin Portal in the General tab for the VM Note: The FQDN value is only only shown if the FQDN is not empty, not localhost and not localhost.localdomain