Why we need kubernetes?

It is very difficult to deploy & scale application manually as it might require loads of resources and time.
To handle the scalability challenges we face
To eliminate human error we might face on multiple deployment
To deploy application very fast at any scale without hustle
To Orchestrate the whole process of deployment of microservices
To tackle network problem like load balancing
To Manage 100% availability of Application all the time
To re-deploy changes easily and fastly