OpenNebula

Just scheduling this feature for a future release, as it does not fit in the time-frame of 1.2

Adding comments on this topic from Soren

It would be really nice if OpenNebula could call a hook script of some sort every > time it hands out a network lease with at least the following arguments:

• MAC address
• IP address
• Name

That way, I can automatically add the relevant information to my dhcp server (mac >address->(ip,hostname) mapping). This saves us from having to put the MAC->ip >address mapping script in every image and also lets us automatically send the
designated hostname via dhcp.

A new HookExecutionDriver will be created to take care of the script execution. It will answer to this command:

EXECUTE <id> <hook_name> <LOCAL|host> <script> <args|->

Anwser will be something like this:

EXECUTE <SUCCESS|FAILURE> <id> <hook_name> <info>

If hook_name is not specified script name will be used (this is for core, not for the driver).

Hooks for the VMs can now be defined in oned.conf, as:

#-------------------------------------------------------------------------------
# Virtual Machine Hooks (VM_HOOK) defined by:
#   name      : for the hook, useful to track the hook (OPTIONAL)  
#   on        : when the hook should be executed
#               - CREATE, when the VM is created (onevm create)
#   command   : use absolute path here
#   arguments : for the hook. You can access to VM template variables with $
#               - $ATTR, the value of an attribute e.g. $NAME or $VM_ID
#               - $ATTR[VAR], the value of a vector e.g. $NIC[MAC]
#               - $ATTR[VAR, COND], same of previous but COND select between 
#                 multiple ATTRs e.g. $NIC[MAC, NETWORK="Public"]
#-------------------------------------------------------------------------------
#-------------------------------------------------------------------------------
#VM_HOOK = [
#    name      = "dhcp",
#    on        = "create",
#    command   = "/bin/echo",
#    arguments = "$NAME $NIC[MAC] > /tmp/test.$VM_ID" ]
#-------------------------------------------------------------------------------