Auto Scaling Resources is one of the top obstacles and opportunities for cloud computing: consumers can minimise the execution time of their tasks without exceeding a given budget. Cloud providers maximise their financial gain while keeping their customers satisfied and minimising administrative costs. Many systems claim to offer adaptive elasticity, yet the “throttling” is usually performed manually, requiring the user to figure out the proper scaling conditions. In order to harvest the benefits of elastic provisioning, it is imperative that it be performed in an automated, fully customisable manner. CELAR delivers a fully automated and highly customisable system for elastic provisioning of resources in cloud computing platforms.