Lee Zen

At Pulumi, we have a tradition of hosting hackathons every so often to play with concepts and ideas that we may not typically encounter in our day-to-day product building activities. This past week, we’ve had two separate back-to-back hackathons. Our first hackathon, which was open to the community, focused on using our new multi-language component capabilities. Multi-language components allow developers to author reusable infrastructure abstractions in one language and make them available to others in all the languages that Pulumi supports. We were really excited to see what everyone would build!

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There are loads of benefits to packaging up an application as a container. You can ensure that your application has all the required dependencies and runs in the isolated, predictable environment you expect. When it comes to running that containerized application, there are many options, including Kubernetes, Amazon Elastic Container Service (ECS), and Docker. Often, running a container application at scale requires setting up a container orchestrator and providing network infrastructure to the containers. Configuring this can be complex, especially if you’re not familiar with virtual networking concepts such as virtual private clouds, load balancers, and the like.

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When deploying infrastructure, we want to ensure that what we’re deploying matches our expectations. One way to do so is via unit testing. We’ve talked about this concept in previous posts, such as in this overview and this post on deployments with .NET.

Often, when we’re creating cloud resources, we want to ensure that a resource’s underlying assets match certain properties. For example, the entrypoint or handler for a cloud function should be an executable function. Similarly, objects we’ll serve as static assets on a website should not exceed a certain size. We can use Pulumi’s unit testing framework along with language-specific constructs such as introspection or filesystem calls to ensure this type of correctness. We’ll walk through some examples to show just how easy it is to do so.

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