try node built-in cache instead

Dockerfile

@@ -64,5 +64,9 @@ RUN find /nodejs/node_modules -name "*.md" -delete
 # Warm up v8 compile cache
 RUN node -e "require('/nodejs/node_modules/datadog-lambda-js/runtime/module_importer').initTracer()"
 
+# Remove leftover temp files
+RUN rm -rf /tmp/yarn-*
+
 FROM scratch
-COPY --from=builder /nodejs /
+COPY --from=builder /nodejs /nodejs
+COPY --from=builder /tmp /tmp

scripts/build_layers.sh

@@ -38,7 +38,7 @@ function docker_build_zip {
     # between different node runtimes.
     temp_dir=$(mktemp -d)
     docker buildx build -t datadog-lambda-layer-node:$1 . --no-cache \
-        --build-arg image=registry.ddbuild.io/images/mirror/node:${node_image_version}-bullseye --progress=plain -o $temp_dir/nodejs
+        --build-arg image=registry.ddbuild.io/images/mirror/node:${node_image_version}-bullseye --progress=plain -o $temp_dir
 
     # Zip to destination, and keep directory structure as based in $temp_dir
     (cd $temp_dir && zip -q -r $destination ./)

src/runtime/module_importer.js

@@ -27,7 +27,7 @@ exports.import = function (path) {
 }
 
 exports.initTracer = function () {
-    compileCache()
+    // compileCache()
 
     // Looks for the function local version of dd-trace first, before using
     // the version provided by the layer