StraysWonderland / serverless-kotless

Kotless-break-even

Simple kotlin break-even function to test kotless with its own DSL and with ktor DSL for aws lambda deployment

Local Development

To run localy, run the "Kotless.local" gradle task.

> Task :local
11:44:18.167 [main] INFO  io.kotless.dsl.ktor.Kotless - Autoreload is disabled because the development mode is off.
11:44:18.196 [main] INFO  ktor.application - Autoreload is disabled because the development mode is off.
11:44:18.251 [main] INFO  ktor.application - Responding at http://0.0.0.0:8080

Deployment

To deploy the project, exchange bucket, profile and region information in build.gradle.kts with the correct information

kotless {
    config {
        bucket = "my.kotless.bucket"
        prefix = "dev"
        dsl {
            type = io.kotless.DSLType.Ktor
        }

        terraform {
            profile = "my.kotless.user"
            region = "eu-west-1"
        }
    }
    webapp {
        lambda {
            kotless {
                packages = setOf("info.novatec")
            }
        }
    }
 }

Problems

Note to deployment task

this currently leads to a malformed terraform file that aborts deployment due to Invalid data resource names

Error: Invalid data resource name

  on breakeven.tf line 157, in data "aws_iam_policy_document" "0_assume":
 157: data "aws_iam_policy_document" "0_assume" {
 
A name must start with a letter or underscore and may contain only letters,
digits, underscores, and dashes.

This could currently not be fixed either through adding the "prefix" command into gradle or through editing the kotless library and adding a prefix generation in the name as well:

In io.kotless.gen.GenerationContext.kt

inner class Names {
        fun tf(vararg name: String) = tf(name.toList())
        fun tf(part: String, parts: Iterable<String>) = tf(part.plusIterable(parts))
        fun tf(parts: Iterable<String>, part: String) = tf(parts.plus(part))
     >  fun tf(name: Iterable<String>) = (schema.config.prefix.plusIterable(name)).flatMap { Text.deall(it) }.joinToString(separator = "_") { it.toLowerCase() }

        fun aws(vararg name: String) = aws(name.toList())
        fun aws(part: String, parts: Iterable<String>) = aws(part.plusIterable(parts))
        fun aws(parts: Iterable<String>, part: String) = aws(parts.plus(part))
        fun aws(name: Iterable<String>): String {
            return (schema.config.prefix.plusIterable(name)).flatMap { Text.deall(it) }.joinToString(separator = "-") { it.toLowerCase() }
        }
}