Rootconf 2017

On service reliability

Ritesh Modi


Control it like IaaS, scale it like PaaS

Submitted Feb 7, 2017

IaaS provides complete control and flexibility over infrastructure on cloud while PaaS provides seamless scalability. PaaS can help scaling up and out automatically based on configured triggers. How good it would be to have a way to deploy virtual machines on cloud and manage it like PaaS by scaling in or out based on your own defined triggers. Virtual machine Scale Sets(VMSS) on Azure provides such a paradigm. VMSS allows to provision Linux or windows virtual machines as a set and manages them together. This provides massive scalability to applications while keeping the costs under check. In this session, we will understand the principles of VMSS, provision compute resources as a set, deploy and run application on them attached to load balancer. Moreover, it will show how to configure scaling up and down of compute resources using custom definitions. The VMSS compute resources will be provisioned and tested using scripts and templates that adheres to infrastructure as code practices. VMSS not only makes applications highly scalable but also highly available.


• What are Virtual machine Scale Sets? (2 mins)

• Advantages and importance of VMSS? (3 mins)

• Building a Scale Set using template (5 min)

• Load Balancing a Scale Set (10 min)

• Operational validation of a scale Set (5 min)

• Auto-Scale in and out a scale Set (10 min)

• QnA (5 min)

Speaker bio

Ritesh is technology architect and Senior Technology Evangelist with Microsoft having 14+ years of experience in industry. He is a known Industry leader, published author and well know speaker at multiple national and international events. He’s an expert on Azure, DevOps, Bots, Cognitive, IOT, PowerShell, SharePoint, SQL Server and System Center. He has co-authored a book titled “Introducing Windows Server 2016 technical Preview” along with Windows Server team. He is currently writing a Book on DevOps to be published in march this year. He has spoken at multiple conferences including TechEd and PowerShell Asia conference and is a published author for MSDN magazine. He has more than a decade of experience in building and deploying enterprise solutions for customers. He blogs at and can be followed on Twitter @automationnext.



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