Hey Jeff,

This functionality is not currently available in Open Source or Enterprise 
Scalr.  As of today only the Sequential and Simultaneous launch options are 
available.  Keep in mind that even if configured for Sequential launch 
Scalr is only able to place the API call with your Cloud Provider for 
handling and it is possible that your observed launch order may in some 
cases differ from what you have defined in the Farm Designer.  Typically 
this is par for the course in the Cloud as failures may occur at any time, 
and the right solution here is to alter the way of thinking about 
application architecture so that you account for the typical types of 
failures that can and will occur for cloud resources. (Ref. Pets vs. Cattle 
ideology) Ideally your application and the Orchestration logic you 
implement will allow for dynamic (re)configuration of your nodes and 
services to maintain operability, regardless of the order launched or 
unexpected scale in/out events.  If this is a hard requirement for your use 
case you may be able to work around this by using custom scaling metrics or 
our API to increase autoscaling minimum from 0 to your desired count for 
each subsequent Farm Role in sequence after the successful simultaneous 
launch of your first Farm Role, but of course this will require quite a bit 
of logic design on your end to achieve your desired results.  Having said 
that, we are always looking for feedback and new use cases from our users 
so that we can ensure Scalr meets our customer's needs as efficiently as 
possible.  If you do have a use case where this functionality would be a 
hard requirement, could you please provide any details you may be able to 
share about such a use case?

Many thanks,
Wm. Marc O'Brien
Scalr Technical Support




On Monday, February 13, 2017 at 5:27:53 PM UTC-7, Jeff Gojkovich wrote:
>
> Is there a way within Opensource Scalr to launch an entire farm role 
> simultaneously and then each farm role serially?
>
> --
> Jeff
>

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