Support custom dockerfile names

[jeshan]

🚀 Feature Request

General Information

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

Description

I have a project where multiple dockerfiles have the same build context. In this case, it would be nice to be able to pass in the dockerfile name. (I'm taking about the -f parameter in docker build)

Proposed Solution

In the prepareContainerAsset method,

aws-cdk/packages/aws-cdk/lib/docker.ts

Lines 65 to 70 in 4afd40e

	const baseCommand = [
	'docker', 'build',
	...buildArgs,
	'--tag', latest,
	contextPath
	];

it's missing the -f parameter which could default to something like $path/Dockerfile.

Environment

• CDK CLI Version: 1.6.0
• Module Version:
• OS: all
• Language: all

Other information

Similar feature request: #3342 where a custom build context is being requested.

[rix0rrr]

I believe this has been requested before already.

[eladb]

@SomayaB this was misclassified as package/tools instead of package/assets.