#: Choose the '''Software Stack''': <font color="green">Django (Version 1)</font> or <font color="green">Django (Version 2)</font> (display this field only if one or more software stacks relevant for the chosen operating system, type and version exist, otherwise disable (grey listing))
#: Choose the '''Persistent Virtual Machine Environment''': <font color="green">Test</font>, <font color="green">Development</font> or <font color="green">Production</font> (display this field only if one or more environments exist for the chosen software stack, otherwise disable (grey listing))
= On the technical side =
== Creation of a virtual machine template ==
The attribute '''sstVirtualMachineMode''' must be set to '''first installation''' during the creation of the virtual machine template.
== Releasing a virtual machine template ==
The user must release the virtual machine template:
* This is done by setting the attribute <code>sstVirtualMachineMode</code> from '''first installation''' to '''ready for use'''
Possible values for the <code>sstVirtualMachineMode</code> attribute are:
* '''do not use''': virtual machines can not be created.
* '''maintenance mode''': virtual machines can not be created from this virtual machine template. This mode is used to update the virtual machine template.
* '''first installation''': virtual machines can not be created from this virtual machine template, this is the default mode after a fresh virtual machine template creation.
* '''ready for use''': the administrator can not start this virtual machine. If he wants to start the virtual machine template, he must set the mode to '''maintenance mode'''.
If the <code>sstVirtualMachineMode</code> attribute does not exist, this must have the same meaning as '''do not use'''. To achieve a '''self healing''' effect, the [[VM-Manager]] must set <code>sstVirtualMachineMode</code> to '''does not exist'''.
== Links ==