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Integrating BladeSystem Matrix into a Chargeback or Billing system

I got a call last week enquiring how the IaaS APIs of BladeSystem Matrix (Matrix) could be used to integrate with a chargeback or billing system at a customer site. its a snowy day in Boulder and being a fair weather skier I thought I would spend a few moments and put together some examples of how you could do this.


How Matrix calculates a service cost


Matrix service templates are listed in the template catalog, which shows their name, a description of the service template, and an associated service cost. This cost is calculated by adding the individual costs of each of the service elements in the template together. For example, in a service template the service designer specifies costs for each class of server, for each GB of a class of storage, and for each IP address consumed on a class of subnet. The cost of the service is calculated by combining these unit costs with the amount of each type of resource consumed to create a total. The template catalog shows the cost to deploy the template. However, once the service is deployed, the user can choose to add additional storage, or perhaps choose to temporarily release (suspend) a server. When the user adds additional storage, their service cost will increase based on the template unit cost per GB of storage. Similarly when the user chooses to temporarily suspend a server, their service costs reduces, reflecting that they have reduced their resource consumption. I'm showing an example of the cost breakout chart in the Matrix template designer tool.



Linking to a charge back or billing system


The ListServices web service call can be used by an administrative user to return summary information about the services deployed in Matrix. The Web service return includes information on the current resource consumption cost of that service. Let's assume the IaaS provider wants to chargeback to their customers based on a 15 minute usage increment. They could use a single CRON job on their billing system to fetch usage information every 15 minutes, as shown in figure 2 below.



The content of the CRON job is shown in figure 3. Matrix 6.0 includes a handy CLI wrapper which I am going use in this example. The wrapper is written in Java, so I can run it on any machine and use the underlying web services to connect the Matrix environment. In my example I copied the ioexec.jar file from the Program Files/HP/Insight Orchestration/cli directory to my linux machine. You could also use your favorite wsdl2{java,perl,python,c,.net} tool or the wsdl import feature in Operations Orchestration to create something similar.


Here is my outline of the bash script:


 # sample charge back cron job
# Cron runs script every 15 minutes
#
###################################################################
# charge_owner: used to apply incremental charge to owner's account
# Inputs: service_name owner cost cost_units
# Returns: !=0 if owner has no more credit
function charge_owner
{
echo service $1 owner "$2" cost $3 $4
# insert commands to charge customer here!
return 0
}
###################################################################
# credit_denied: called when owner has no more credit on service
# Inputs: service_name owner
function credit_denied
{
echo suspend service $1 of owner $2
# Insert commands to handle over drawn customers here
# ioexec deactive service -s "$1" -c chargeback.conf
return 0
}


####################################################################
# process_chargeback
# Inputs: processes listServices output invoking charge_owner &
#         credit_denied to perform chargeback processing
function process_chargeback
{
while read -r LINE
do
    FIELD=${LINE#*services*.}
    FIELD=${FIELD%%=*}
    ARG="${LINE#*=}"
  
    case "$FIELD"
    in
         name)  service="$ARG";;
         cost.value)    cost="$ARG";;
         cost.units)    units="$ARG";;
         ownerName)     owner="$ARG";
                        charge_owner "$service" "$owner" "$cost" "$units"
                        if
                        then
                            credit_denied "$service" "$owner"  
                        fi;;
    esac
    :
done


}


ioexec list services -o raw -c chargeback.conf | process_chargeback


The script uses the ioexec wrapper to invoke the list Services web service call. I then pipe the results to process_chargeback  to parse the results extracting the service name, current charge rate and charge units, and service owner. The information is passed to the chargeback system via two functions charge_owner and credit_denied. The sample code has a stubbed version of charge_owner, which takes the service name, charge rate, charge units and owner arguments and simply echos them. This routine could be extended to insert the usage information into a database or pass it directly to a charge back system. If the routine returns a non-zero result (indicating an error), then the credit_denied routine is called. This is another stub which, for now, just echos the name of owner and the associated service. This could be extended, as shown, to do other operations - such as invoke the deactivateService web service call to shut down the service when the user has no more credit.


More Complex Scenarios


The example I've given is very simple, but hopefully is enough to get people started on their own integrations. Matrix has additional integration points that can trigger workflows to perform additional actions. An example of one of these triggers is the "Approval" workflow that is used to gate requests for new resource allocation in Matrix. This trigger point could be used to do a credit check on a customer prior to proceeding with a resource deployment operation.


I'd love feedback about the charge back or billing tools people use today, and what kind of out-of-the-box integrations would be most useful.

Blade Hacks: Capture all your configuration settings at once

Learn how to capture all of a c7000 enclosure and server blade configuration settings.  Get things like firmware revisions,  switch settings, similar to what the hpux script “sysinfo” would collect.


Get the BladeSystem CLI guide and check out the "show all" command and others on pages 41-48.


 

Blade Hacks: CLI Tips and Tricks

We're starting a new series on the blade blog called 'Blade Hacks'.  More tips and tricks than true hacks (security is kind of important you know). I just like the name. 


For our first post, I wanted to focus on the command line interface of the built-in, Onboard Administrator.  A lot of people love its simplicity, but our real power users love the amount of control it puts at their fingertips via the CLI.

monty with the OA

Recently, some of our top Blade Ambassadors shared some cool tips and tricks that can really save you tons time.  A lot of them are captured in a free download of the Onboard Adminstrator Command Line Interface User Guide. This was just updated a few days ago with some cool new scripts and commands.


Do you have a favorite CLI script you want to share with the community?  Post a comment below.


To find more Blade Hacks in the future, just check the tags to the right or request topics in the comments. 


 

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About the Author(s)
  • More than 25 years in the IT industry developing and managing marketing programs. Focused in emerging technologies like Virtualization, cloud and big data.
  • I work within EMEA HP Servers Central Team as a launch manager for new products and general communications manager for EMEA HP Server specific information. I also tweet @ServerSavvyElla
  • Hello! I am a social media manager for servers, so my posts will be geared towards HP server-related news & info.
  • HP Servers, Converged Infrastructure, Converged Systems and ExpertOne
  • WW responsibility for development of ROI and TCO tools for the entire ISS portfolio. Technical expertise with a financial spin to help IT show the business value of their projects.
  • I am a member of the HP BladeSystem Portfolio Marketing team, so my posts will focus on all things blades and blade infrastructure. Enjoy!
  • Luke Oda is a member of the HP's BCS Marketing team. With a primary focus on marketing programs that support HP's BCS portfolio. His interests include all things mission-critical and the continuing innovation that HP demonstrates across the globe.
  • Global Marketing Manager with 15 years experience in the high-tech industry.
  • Network industry experience for more than 20 years - Data Center, Voice over IP, security, remote access, routing, switching and wireless, with companies such as HP, Cisco, Juniper Networks and Novell.
  • 20 years of marketing experience in semiconductors, networking and servers. Focused on HP BladeSystem networking supporting Virtual Connect, interconnects and network adapters.
  • Greetings! I am on the HP Enterprise Group marketing team. Topics I am interested in include Converged Infrastructure, Converged Systems and Management, and HP BladeSystem.
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