Facing the growing need for cloud computing system protection to prevent financial loss and private information breaches, many companies are manually writing policies to fight against attacks. However, such procedures are repeated and slow. With support from Deloitte, this project created sample codes that could prevent such fatiguing and tedious work by automating the whole implementation process. More specifically, it built a sample code pipeline for cloud computing system policies with Amazon Web Services(AWS), Rego and AWS Cloud Development Kit (CDK).