[aws-lambda] Bundling code fails with Docker error 125 (wrong flag provided) starting from 1.61.0

[jarikujansuu]

When trying to run tests that contain Lambda get error with Docker code 125. Tested different versions from 1.55.0 to current 1.62.0 and error seems to appear in 1.61.0

Running Docker version 19.03.12, build 48a66213fe on MacOS 10.14.6

Failed to bundle asset MyTestStack/DeltaHandler/Code/Stage, bundle output is located at /var/folders/q6/myync74s6y3d56dsbdt4xtgh0000gn/T/cdk.outfhCgSf/asset.96d820282efdb1403c735a823a6797110cd117197eca021f6037be7bed0cf9d2-error: Error: docker exited with status 125

Reproduction Steps

PythonFunction wrapper might be unnecessary in newer versions but it was when submitted earlier bug about it. Of course needs something in Lambda directory too.

import '@aws-cdk/assert/jest';
import { Code, Function, Runtime } from '@aws-cdk/aws-lambda';
import { App, AssetStaging, Construct, Stack } from '@aws-cdk/core';
import { PythonFunctionProps } from '../cdk/lib/lambda/PythonFunction';

export class PythonFunction extends Function {
  constructor(scope: Construct, id: string, props: PythonFunctionProps) {
    super(scope, id, {
      ...props,
      code: Code.fromAsset(props.path, {
        bundling: {
          image: props.runtime.bundlingDockerImage,
          command: [
            'bash',
            '-c',
            PythonFunction.chain([
              `pip install -r requirements.txt -t ${AssetStaging.BUNDLING_OUTPUT_DIR}`,
              `cp -R . ${AssetStaging.BUNDLING_OUTPUT_DIR}`,
            ]),
          ],
        },
      }),
    });
  }

  static chain(commands: string[]): string {
    return commands.filter(c => !!c).join(' && ');
  }
}


describe('Test', () => {
  const app = new App();
  const stack = new Stack(app, 'MyTestStack');
  new PythonFunction(stack, 'Function', {
    runtime: Runtime.PYTHON_3_8,
    handler: 'handler.handle',
    path: './lambda/delta-sync',
  });

  test('Test', () => {
    expect(stack).toHaveResource('AWS::Lambda::Function', {
      Runtime: 'python3.8',
    })
  });
});

What did you expect to happen?

Test should run and lambda should be bundled using Docker.

What actually happened?

Failed to bundle asset MyTestStack/Function/Code/Stage, bundle output is located at /var/folders/q6/myync74s6y3d56dsbdt4xtgh0000gn/T/cdk.outVZd5d7/asset.96d820282efdb1403c735a823a6797110cd117197eca021f6037be7bed0cf9d2-error: Error: docker exited with status 125

Environment

• CLI Version :
• **Framework Version: error appears in 1.61.0
• Node.js Version: v14.7.0
• **OS : macOs
• Language (Version): TypeScript (3.8.3)

Other

---

This is 🐛 Bug Report

[eladb]

@jogold can you take a look?

[jogold]

@jarikujansuu

What happens when you specify an outdir in your test?

describe('Test', () => {
  const app = new App({
    outdir: './cdk.out' // <-- this
  });
});

and then can you try replacing os.tmpdir() with fs.realpathSync(os.tmpdir()) here?

aws-cdk/packages/@aws-cdk/cx-api/lib/cloud-assembly.ts

Line 406 in 10d0a36

return outdir ?? fs.mkdtempSync(path.join(os.tmpdir(), 'cdk.out'));

or replace the file at node_modules/@aws-cdk/cx-api/lib/cloud-assembly.js with this gist: https://gist.github.com/jogold/09a0aca5f62c4373d2e55054d318e686

[jogold]

@jarikujansuu have you been able to try it?

[joysl]

Hi,
I get the same error: /git-code/lex_sf_drug_regminder_blog/cdk.out/asset.22e85c5c2352db3d74d8ca44d3e60507511b798ba9b44cdd153fd302a28b4968-error: Error: docker exited with status 125
CDK Version: 1.111.0