Introduction

Typebuild makes it possible to create container images using typescript.

Instead of this

#syntax=docker/dockerfile:1.4

FROM golang:1.18.0-alpine3.15 as builder
RUN apk add git
WORKDIR /app
RUN --mount=target=. go build -o /binary

FROM scratch as final
COPY --from=builder --link /binary /app
ENTRYPOINT /app

You can do this

//syntax=rumpl/typebuild

import { BindMount, Image, Scratch } from "https://raw.githubusercontent.com/rumpl/typebuild-node/main/index.ts";

const golangImage = "golang:1.18.0-alpine3.15";
const binary = "/binary";
const entrypoint = "/app";
const mounts = [new BindMount({ target: "." })];

const builder = new Image(golangImage)
  .run("apk add git")
  .workdir("/app")
  .run(`go build -o ${binary}`, mounts);

export default new Scratch()
  .copy({
    from: builder,
    source: binary,
    destination: entrypoint,
  })
  .entrypoint([entrypoint]);

And of course, since this is TypeScript, you can refactor your build file and it could look something like this

import { Golang } from "https://my-registry.org/my-awesome-builder-lib/golang.ts";

export default new Golang().build();