fix(lambda-nodejs): parcel tries to install @babel/core (#9067)

When Parcel cannot find `@babel/core` in the search paths for node
modules it tries to install it. This overwrites the lock file and
`node_modules`.

Add the `--no-autoinstall` flag to prevent Parcel from installing any
missing dependency and switch to a local install in the Docker image at
the root (`/`) of the filesystem. This way all dependencies in
`/node_modules` will be in the search paths of `/asset-input`.

This was not detected in this repo or in the init template because
`@babel/core` is a dependency of `jest`.

Closes #9032


----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/@aws-cdk/aws-lambda-nodejs/lib/bundling.ts

@@ -154,9 +154,10 @@ export class Bundling {
     // Entry file path relative to container path
     const containerEntryPath = path.join(cdk.AssetStaging.BUNDLING_INPUT_DIR, path.relative(projectRoot, path.resolve(options.entry)));
     const parcelCommand = [
-      'parcel',
+      '$(node -p "require.resolve(\'parcel\')")', // Parcel is not globally installed, find its "bin"
       'build', containerEntryPath.replace(/\\/g, '/'), // Always use POSIX paths in the container
       '--target', 'cdk-lambda',
+      '--no-autoinstall',
       '--no-scope-hoist',
       ...options.cacheDir
         ? ['--cache-dir', '/parcel-cache']

packages/@aws-cdk/aws-lambda-nodejs/parcel/Dockerfile

@@ -13,7 +13,8 @@ RUN mkdir /npm-cache && \
 RUN npm install --global yarn
 
 # Install parcel 2 (fix the version since it's still in beta)
+# install at "/" so that node_modules will be in the path for /asset-input
 ARG PARCEL_VERSION=2.0.0-beta.1
-RUN yarn global add parcel@$PARCEL_VERSION
+RUN cd / && npm install parcel@$PARCEL_VERSION
 
 CMD [ "parcel" ]

packages/@aws-cdk/aws-lambda-nodejs/test/bundling.test.ts

@@ -45,7 +45,8 @@ test('Parcel bundling', () => {
       volumes: [{ containerPath: '/parcel-cache', hostPath: '/cache-dir' }],
       workingDirectory: '/asset-input/folder',
       command: [
-        'bash', '-c', 'parcel build /asset-input/folder/entry.ts --target cdk-lambda --no-scope-hoist --cache-dir /parcel-cache',
+        'bash', '-c',
+        '$(node -p "require.resolve(\'parcel\')") build /asset-input/folder/entry.ts --target cdk-lambda --no-autoinstall --no-scope-hoist --cache-dir /parcel-cache',
       ],
     }),
   });
@@ -106,7 +107,7 @@ test('Parcel bundling with externals and dependencies', () => {
     bundling: expect.objectContaining({
       command: [
         'bash', '-c',
-        'parcel build /asset-input/folder/entry.ts --target cdk-lambda --no-scope-hoist && mv /asset-input/.package.json /asset-output/package.json && cd /asset-output && npm install',
+        '$(node -p "require.resolve(\'parcel\')") build /asset-input/folder/entry.ts --target cdk-lambda --no-autoinstall --no-scope-hoist && mv /asset-input/.package.json /asset-output/package.json && cd /asset-output && npm install',
       ],
     }),
   });