The Maven http://maven.apache.org website is composed from:
Since December 2012, the overall website uses svnpubsub mechanism: the whole site content accessible at http://maven.apache.org is stored in a dedicated site publication svn: https://svn.apache.org/repos/infra/websites/production/maven/content/.
See CMS documentation for more information on the rationale behind the switch from "scp to people.apache.org + (find+rsync)" to svnpubsub.
Instructions on how to publish website content are split in separate documents:
A complete overview is available, assembling previous explanations.