Infrastructure as Code: Declarative or Imperative?

Established in 1981, the Institute of Systems Science at National University of Singapore (NUS-ISS) develops digital talent for the industry through graduate education, professional development programmes, consultancy, applied research and career services. NUS-ISS is widely recognised as a champion of the national SkillsFuture movement, enabling a digital economy that is always learning and always leading.NUS-ISS has implemented a unique portfolio of multiple learning pathways, with a wide spectrum of programmes in critical industry disciplines, such as software development, data science, artificial intelligence, cybersecurity, smart health, digital government and digital innovation.To date, more than 178,000 digital leaders and professionals, 8,410 corporate customers and 8,160 post-graduate alumni have benefitted from NUS-ISS’ suite of services.

NUS-ISS

Comparing writing IaC scripts with a domain specific language (Turing complete?) vs general purpose programming language

IaC (Infrastructure as Code) is a way of provisioning and managing virtualized resources on public cloud platforms, virtual machine, etc. IaC allows developers to describe the definition and configurations of the resources required by an application and its related dependencies, in files. These configuration files are the used to provision the required resources.There are 2 approaches to writing IaC files: the declarative (what is to be provisioned) and the imperative (how to provision). The former typically uses domain specific language or markup languages while the latter relies on ‘regular’ programming languages and libraries.In this demo oriented presentation, we will use go through a use case by provisioning and deploying a same setup with Terraform and Pulumi (one of the many supported programming language). We will then discuss the relative merit of the 2 approaches.

Infrastructure as Code: Declarative or Imperative?

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Infrastructure as Code: Declarative or Imperative?

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