+1 for TypeScript for config. I've been using Pulumi with TS to create a simple ...

OliverGilan · on June 8, 2022

I’d love to learn more about how you do this. Do you have any helpful resources that I can look at to understand the process of creating a DSL with TS + Pulumi?

campers · on June 8, 2022

Calling it a DSL is maybe bit of a stretch, its just creating a concise abstraction above the provided API.

So instead of having 20 lines of code for every alert policy like at https://www.pulumi.com/registry/packages/gcp/api-docs/monito... you create a function that generates all the standardised alerts from concise strongly typed config such as

    cloudSqlAlerts({
        instanceId: 'sql-main',
        highCpu: {
            percent: 70,
            duration: _5min
        },
        highMemory: {
            percent: 80,
            duration: _5min
        },
        highDisk: {
            percent: 80,
            duration: _10min
        },
        deadlockDetection: true
    }, 
    projectNotificationChannels)

eurasiantiger · on June 8, 2022

Just create types for all objects in your configuration as well as the configuration object itself.

The ”DSL” is the typings, and the rest is nothing more than a simple TS program which calls JSON.stringify() with the type-checked config object and writes the resulting string to disk.