enos: make the local build target configurable (#2313)

This makes the `make` build target that is used for local builder
variant configurable. This will allow us to utilize the local builder
variant in downstreams that might use different targets for their build.

* Make the local build target configurable
* Allow cross compiling `linux/amd64` on different platforms.

enos/enos-modules.hcl

@@ -33,6 +33,8 @@ module "build_crt" {
 
 module "build_local" {
   source = "./modules/build_local"
+
+  build_target = var.local_build_target
 }
 
 module "generate_aws_host_tag_vars" {

enos/enos-variables.hcl

@@ -121,3 +121,9 @@ variable "test_email" {
   type        = string
   default     = null
 }
+
+variable "local_build_target" {
+  description = "Which make build target(s) to use for the local builder variant"
+  type        = string
+  default     = "build-ui build"
+}

enos/modules/build_local/main.tf

@@ -10,12 +10,17 @@ variable "path" {
   default = "/tmp"
 }
 
+variable "build_target" {
+  default = "build-ui build"
+}
+
 resource "enos_local_exec" "build" {
   environment = {
     "GOOS"          = "linux",
     "GOARCH"        = "amd64",
     "CGO_ENABLED"   = 0,
     "ARTIFACT_PATH" = var.path
+    "BUILD_TARGET"  = var.build_target
   }
   scripts = ["${path.module}/templates/build.sh"]
 }

enos/modules/build_local/templates/build.sh

@@ -10,8 +10,7 @@ npm install --global yarn || true
 root_dir="$(git rev-parse --show-toplevel)"
 pushd "${root_dir}" > /dev/null
 
-make build-ui
-make build
+make ${BUILD_TARGET}
 zip -j ${ARTIFACT_PATH}/boundary.zip bin/boundary
 
 popd > /dev/null

scripts/build.sh

@@ -88,4 +88,4 @@ fi
 
 # Done!
 echo "==> Results:"
-ls -hl ${BIN_PARENT_DIR}
+ls -hl ${BIN_PARENT_DIR}