Joe Duffy on Infrastructure as Code, Pulumi, and Multi-Cloud

In this podcast, Daniel Bryant sat down with Joe Duffy, founder and CEO at Pulumi, and discussed several infrastructure-themed topics: the evolution of infrastructure as code (IaC), the way in which the open source Pulumi framework allows engineers to write IaC using general purpose programming languages such as JavaScript and Go, and the future of multi-cloud environments.

Why listen to this podcast:

● Infrastructure as Code (IaC) enables engineers to programmatically define the configuration and provisioning of computing infrastructure, on-premises hardware, and cloud services.

● Traditional IaC tools were often imperative, requiring engineers to define and enumerate the necessary steps and SDK calls in order to configure the underlying infrastructure.

● Modern IaC tools like HashiCorp’s Terraform, AWS CloudFormation and other related cloud vendor tooling enable engineers to write declarative code to define a required state of the infrastructure. The tools parse the declarative configuration and take appropriate action to enact the specified state, for example, calling SDKs and APIs, verifying results, iterating etc.

● Pulumi is an open source framework that enables engineers to define IaC using general purpose programming languages, such as Node, Python, .NET Core, and Go.

● Pulumi allows imperative specification of IaC. Engineers can use their favourite language-specific features, idioms, and patterns. The use of language modules, packages, and libraries can also enable code reuse.

● Under the hood, Pulumi transforms code written in the supported languages to a declarative specification model. This model is then used to enact the required infrastructure state.

● Frameworks like Pulumi enable engineers to deploy and configure infrastructure across multiple cloud vendors and services (including Kubernetes clusters).

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