The development of many large and complex applications has led to the need to come up with a better solution to manage those applications from one large system into a combination of small services that work together in a cohesive way for a widely used application where it can be easy to deploy, configure, and scale. The popularity of microservices architecture in different fields has made it susceptible to development, especially in task scheduling. We report on the scheduling algorithms that have been used by many researchers and discuss their approaches. This report will help us ameliorate the flexibility of the system in future studies.