WIP: cf-worker-go; tf-cloudfuare doesn't work with wasm :(

Signed-off-by: Jason Hall <jason@chainguard.dev>

cf-worker-go/.gitignore

@@ -0,0 +1 @@
+build

cf-worker-go/go.mod

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+module github.com/imjasonh/terraform-playground/cf-worker-go
+
+go 1.21.3
+
+toolchain go1.21.5
+
+require github.com/syumai/workers v0.18.0

cf-worker-go/go.sum

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+github.com/syumai/workers v0.18.0 h1:RBnOFqghALR0woeCCYumG7Zt7UDFAt51rSQJhd/hJjw=
+github.com/syumai/workers v0.18.0/go.mod h1:ZnqmdiHNBrbxOLrZ/HJ5jzHy6af9cmiNZk10R9NrIEA=

cf-worker-go/main.go

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+package main
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/syumai/workers"
+)
+
+func main() {
+	http.HandleFunc("/hello", func(w http.ResponseWriter, req *http.Request) {
+		fmt.Fprintln(w, "Hello!")
+	})
+	workers.Serve(nil)
+}

cf-worker-go/main.tf

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+terraform {
+  required_providers {
+    cloudflare = { source = "cloudflare/cloudflare" }
+  }
+}
+
+variable "name" { type = string }
+variable "cloudflare_zone" { type = string }
+variable "cloudflare_api_token" { type = string }
+variable "cloudflare_account_id" { type = string }
+
+provider "cloudflare" {
+  api_token = var.cloudflare_api_token
+}
+
+// TODO: need to manually enable the workers.dev route in the dashboard
+// use cloudflare_worker_route instead to set up routing
+resource "cloudflare_worker_script" "script" {
+  depends_on = [terraform_data.build]
+  account_id = var.cloudflare_account_id
+  name       = var.name
+  content    = file("${path.module}/build/worker.mjs")
+
+  // │ Error: error creating worker script: Wasm and blob bindings are not supported with modules; use imports instead (10021)
+  module = false
+
+  webassembly_binding {
+    name   = "WASM"
+    module = filebase64("./build/app.wasm")
+  }
+}
+
+/*
+resource "cloudflare_worker_route" "route" {
+  zone_id     = data.cloudflare_zone.zone.id
+  pattern     = "${var.name}.${var.cloudflare_zone}/*"
+  script_name = cloudflare_worker_script.script.name
+}
+
+data "cloudflare_zone" "zone" {
+  name = var.cloudflare_zone
+}
+*/
+
+resource "terraform_data" "build" {
+  # Changes to *.go files requires re-building it.
+  input = {
+    # https://stackoverflow.com/questions/51138667/can-terraform-watch-a-directory-for-changes
+    dir_sha1 = sha1(join("", [for f in fileset("${path.module}", "*.go") : filesha1("${path.module}/${f}")]))
+  }
+
+  provisioner "local-exec" {
+    command = <<EOC
+go run github.com/syumai/workers/cmd/workers-assets-gen@v0.18.0 -mode=go
+GOOS=js GOARCH=wasm go build -o ./build/app.wasm .
+EOC
+  }
+}