Domain-specific language for infrastructure as code

With increasing number of cloud providers and offered cloud services, the need of effective deployment and portability of software application infrastructures in the cloud environments is becoming more essential. The paper provides a method of unified description and deployment of infrastructures, including hardware and software requirements. It describes the developed Ansible module which deploys the required infrastructure in specified cloud environment depending on specific description. The module uses model and language of TOSCA standard (Topology and Orchestration Specification for Cloud Applications) to describe the relevant node requirements of infrastructure and orchestration tool Ansible to deploy infrastructure in cloud environment. The paper also provides instructions to add new provider support in developed module and describes the maps between TOSCA elements and resources provided by OpenStack and Amazon.