Vnx-console-mgmt

VNX Console Management

To be completed soon...

VNX Console Definition

Consoles available depending on type of virtual machine:

• libvirt virtual machines:
  • con0: the graphical console
  • con1: the textual console
• Dynamips:
  • con1: the main console
  • con2: aux console (only available for C7200 routers)
• Olive:
  • con1: the textual console

  <global>

      <vm_defaults>
	    <console id="0" display="no"/>
	    <console id="1" display="yes"/>
      </vm_defaults>
  </global>

...
<vm name="h1" type="libvirt" subtype="kvm" os="linux">
    ...
    <console id="0" display="yes"/>
    <console id="1" display="no"/>
    ...
</vm>

<vm name="h2" type="libvirt" subtype="kvm" os="linux">

</vm>

VNX Console Commands

Two commands are provided in VNX to manage virtual machine consoles: "--console", to open the consoles; and "--console-info" to show information about them.

Besides, two options are used to modify the behaviour of the commands: "--cid" to specify consoles identifiers (con0, con1, etc) and restrict the command to a specific console; and "-M" to specify a virtual machine or a list of virtual machines the command applies to.

• Show information about the consoles of an scenario:

sudo vnx -f scenario.xml -v --console-info

For example:

-----------------------------------------------------------------------------------------
 Scenario "tutorial_ubuntu" started

 VM_NAME     | TYPE                | CONSOLE ACCESS COMMAND
-----------------------------------------------------------------------------------------
 h1          | libvirt-kvm-linux   | con0:  'virt-viewer -c qemu:///system h1' or 'vncviewer :0'
             |                     | con1:  'virsh -c qemu:///system console h1' or 'screen /dev/pts/0'
-----------------------------------------------------------------------------------------
 h2          | libvirt-kvm-linux   | con0:  'virt-viewer -c qemu:///system h2' or 'vncviewer :6'
             |                     | con1:  'virsh -c qemu:///system console h2' or 'screen /dev/pts/12'
-----------------------------------------------------------------------------------------
 r1          | libvirt-kvm-linux   | con0:  'virt-viewer -c qemu:///system r1' or 'vncviewer :7'
             |                     | con1:  'virsh -c qemu:///system console r1' or 'screen /dev/pts/13'
-----------------------------------------------------------------------------------------
 r2          | libvirt-kvm-linux   | con0:  'virt-viewer -c qemu:///system r2' or 'vncviewer :8'
             |                     | con1:  'virsh -c qemu:///system console r2' or 'screen /dev/pts/14'
-----------------------------------------------------------------------------------------
 h3          | libvirt-kvm-linux   | con0:  'virt-viewer -c qemu:///system h3' or 'vncviewer :9'
             |                     | con1:  'virsh -c qemu:///system console h3' or 'screen /dev/pts/22'
-----------------------------------------------------------------------------------------
 h4          | libvirt-kvm-linux   | con0:  'virt-viewer -c qemu:///system h4' or 'vncviewer :10'
             |                     | con1:  'virsh -c qemu:///system console h4' or 'screen /dev/pts/23'
-----------------------------------------------------------------------------------------

• Open all the consoles enabled in an scenario:

sudo vnx -f scenario.xml -v --console

only the consoles with the 'display' attribute set to 'yes' are opened.

• Open the first console of every virtual machine of an scenario:

sudo vnx -f scenario.xml -v --console --cid con1

When using the "--cid" option to identify a specific console, the consoles are opened independently of the value of the 'display' attribute.

• Open the first console of a specific virtual machine of an scenario:

sudo vnx -f scenario.xml -v --console --cid con1 -M h1