cloud computing

VideoDev Ltd is a video and production development company which works for clients across Australia and New Zealand. The company is considering moving some of its computer infrastructure into the Cloud. The VideoDev Board is contemplating this move as a way to increase the company’s flexibility and responsiveness, as well as to achieve some savings on the cost of maintaining their ICT infrastructure.
VideoDev has engaged you as a consultant to advise them on the use of Cloud Computing in their daily operations. They have some 100 video production, engineering and support staff that work on different projects for clients in Australia and New Zealand.
You were recently engaged to advise on re-factoring their video processing application to use a microservices approach. The VideoDev Board is keen to start to move to this direction as it sees the possibilities that it will open up for VideoDev in the future. They have also decided to start planning to migrate their existing web services from their two on-premise data centres to a public cloud.  
The company is considering the following strategic proposal:

They plan to retain the Sydney data centre for data storage. This would entail updating their Active Directory and data storage infrastructure, and moving all other infrastructure into the Cloud.  
They plan to move all their Web Services into the Cloud in order to provide an increased responsiveness to customer demand as well as an enhanced level of HA (High Availability) in supplying data to their customers and staff.
They are considering changing their current web software architecture to take advantage of the flexibility and scalability that can be gained by moving to a Microservices model (this would entail the use of such services as AWS Lambda or Azure Functions, Containers, Data Services, and Cloud Edge capability and monitoring).

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The VideoDev Board is contemplating this strategy as a way to increase the company’s flexibility and responsiveness. The Board also expects to achieve significant savings on the cost of maintaining their ICT infrastructure by closing one of their existing data centres. They appreciate that this would entail retraining for their existing ICT staff so that they can manage the new Cloud based infrastructure.
You have also advised the VideoDev Board that their Threat and Risk Assessment (TRA) needs to be updated as a result of these architectural changes. The Board has asked you to update the TRA as a matter of urgency.
The Board is also concerned about how this strategy will affect their BCP (Business Continuity Plan) and their backup and disaster recovery strategies.
 The VideoDev board wants to know what you recommend as the best migration strategy and process for the migration of their web services to a MicroService approach.

Describe the steps that you would include in the plan to migrate these services. (10 marks) 
What are the critical points and issues that you see occurring at each of these steps? Explain why you see these points or issues as critical. (10 marks)

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