Currently the plugin hard codes the URL template here: https://github.com/jenkinsci/artifact-manager-s3-plugin/blob/master/src/main/java/io/jenkins/plugins/artifact_manager_jclouds/s3/S3BlobStore.java#L164

I would love to be able to customize this via some sort of advanced config. There are a number of providers that provide S3 compatible API. Would love to be able to use them.