Resource management is a continuous process for either on-premise infrastructures or infrastructure on the cloud. The instance you deploy, the cluster you spin up, and the storage you use all have to be continuously monitored and managed by the infrastructure team. Sometimes it may happen that you need to attach a volume to the already running instance, you may need to add an extra node to your distributed processing databases, or you may need to add instances to handle large traffic coming to the load balancer. The other resource management work includes configuration management, such as changing firewall rules, adding new users to access the resources, adding new rules to access other resources from the current resource, and so on.
Initially due to a lack of good GUI interfaces and available tools for monitoring and managing resources, it was managed using custom scripts or commands. Today almost all cloud providers have well augmented graphical user interfaces and tools...