YAML provides the primary configuration format for describing Kubernetes workloads as desired state rather than as a sequence of commands. section 1.2.2
Kubernetes reads the configuration, creates the requested resources, and keeps working toward that state when replicas crash or fail. section 1.2.2
Three application replicas
A Deployment configuration can specify three application replicas and an external load balancer; Kubernetes finds placement, connects the replicas, and maintains them. section 1.2.2















