Hi Peter,
I need to get round to polishing a dockerfile that would create an image to
be run as a CloudStack simulator in a container (or if there's enough
interest I could share it's current state for others to finish).
But. If you want to work on real world integrations, I'd guess that you
would likely to need real hosts to create VMs on. Trillian
(https://github.com/shapeblue/trillian) was created for the exact purpose
that you are describing. In fact it runs most of the automated testing
done on CloudStack. And can support 10s even 100s of concurrent
environments.
I'm not going to lie - it takes a bit of setting up (and isn't local) - but
it's run thousands of times creating environments for testing business logic
and integrations
Regards
Paul Angus
-Original Message-
From: Muryshkin, Peter
Sent: Thursday, October 21, 2021 11:30 AM
To: dev@cloudstack.apache.org; us...@cloudstack.apache.org
Subject: Local simulation of Apache Cloudstack instances/API endpoints:
state of the art, target groups and use cases
Hi all,
from what I can find, there are three more or less established/already well
elaborated approaches to simulate a CloudStack instance locallly.
Depending on the target group and their goals, they can have different
levels of fidelity and usability.
1. Obviously CloudStack developers confgure a KVM development environment to
work inside it, this is part of the Apache CloudStack Hackerbook kindly
shared by ShapeBlue. [1] 2. For test scenarios, Hackerbook describes a
mocked simulator approach [2] 3. For users for whom the whole cloud system
is just a "black box", especially cloud beginners, there is a single
integrated Docker container. [3]
With the rise of CI/CD and infrastructure as code automation practices,
where you just need more or less on demand one or even many versions of the
CloudStack API, [3] appears to be a crucial building block in the cloud
userspace before just "trying out CloudStack".
So it appears that there might be much demand on a Apache CloudStack
containerized instance:
1. Demand from potential new adopters, for their "Apache CloudStack to go"
demos 2. Demand from DevOps/GitOps/SRE/you-name-it enabled teams who
implement their virtual infrastructure for example with Terraform and the
CloudStack provider plugin and want to simulate rollout scenarios.
However, is this true?
* the container simulator hasn't been updated on DockerHub since a couple of
years; is there another place in meantime or will this approach dumped for
some reason?
* there is not so much discussion about this asset on mailing lists; so
there is not so much demand as one might assume?
What do you think?
kind regards
--
Peter Muryshkin
Fraunhofer Gesellschaft
https://www.linkedin.com/in/muryshkin/
