In a cloud infrastructure, because everything is virtualized, nothing is tied to a particular physical server. This applies to services as well as apps. Do you think when you log onto Gmail you are logging into the same physical server every time? No, it’s a virtualized server at any one of dozens of Google data centers.
With cloud infrastructure, DevOps teams can build their apps so they can deploy an app programmatically. The cloud is a great way to run a business since it offers many advantages

• Efficiency/cost reduction
• Data security
• Scalability
• Agility and flexibility
• Easy to implement