Why automation of deployment is very important in Cloud architecture?

One ofthe main reasons for selectingCloud architectureis scalability ofthesystem. In case of heavy load, we haveto scale up thesystemso that
thereis no performance degradation.

Whilescaling up thesystemwe haveto start newinstances. To provision newinstances we haveto deploy ourapplication on them.

In such ascenario, ifwe want to savetime, itmakes senseto automatethe deployment process. Another termfor this is Auto-scaling.

With afully automated deployment process wecan start newinstances based on automated triggers thatareraised by load reaching athreshold.