AWS S3 local server for integration testing

Question

I have some code that uploads and downloads files using AWS S3 (using the Java AWS SDK). I want to be able to write some tests for it, I was wondering if anyone has any good options. Ideally I would like a light-weight S3 server that runs locally that can be started fast and requires no system configuration (the tests need to be run by Jenkins).

Some options I have looked at so far:

1. FakeS3 - Almost exactly what I'm looking for, however, when using the Java AWS SDK, you must edit your /etc/hosts file and restart networking, not something I can do in Jenkins. Also when trying it out there seems to be a bug with the creation date field being formatted wrong which makes my client throw an exception, which doesn't inspire me with much confidence in the project.
2. Ceph - Implements S3 API but takes several minutes to install

Answer 1

You can try localstack, which is an open source local AWS cloud stack made for testing. It provides implementations of several of AWS services, including S3.

It looks like a very popular open source project on GitHub.

Answer 2

You can try installing minio server on your laptop/system, its open source & single static binary. Server is S3 compatible. Then you can try minio-java client library for all operations, following is basic operations example.

Installing minio server [GNU/Linux]

$ wget https://dl.minio.io/server/minio/release/linux-amd64/minio $ chmod 755 minio $ ./minio --help   

Hope it helps Disclaimer: I work for Minio