Storing Mediawiki Resources on AWS S3

Mediawiki AWS Extension

MediaWiki AWS extension enables uploads to AWS S3.

The extension page (and corresponding GitHub) have the best information about configuration.

This requires maintaining and AWS S3 bucket for the wiki images, and granting the wiki EC2 instance access to the bucket.

Once this is in place and the extension is configured in LocalSettings.php. The extension also requires registration in composer.local.json followed by composer update.

Installing the extension

Confirm this information is up-to-date at the link AWS extension docs linked above, but as of MW version 1.38.2 it's necessary to run the composer.json file found within the AWS extension directory when installing MW.

This is done by adding a composer.local.json file to the root of the MW distro. MW's composer.json will include composer.local.json which in turn includes the AWS extension's composer.json.

Note that it does not work to add this composer.local.json file to the wiki_config/ directory in the littled_wiki project root. The file must be copied to the MW distro, e.g. mediawiki-1.3x.x/.

Back ups, archives and uploads

GoodSync is a viable option to archive the images locally. Create a synchronization job with the local directory on one side and the S3 bucket on the other. Enter access key and secret for a user that has access to the bucket.

AWS storage

Created an S3 bucket named dbarchowsky-wiki to serve as a location for user files for the wiki.

Other storage options

• AWS S3, which works with the Mediawiki S3 extension.
• Amazon EFS and EBS.
  • EFS is scalable physical storage which can be shared among multiple EC2 instances.
  • EBS is physical storage that is linked typically to a single EC2 instance.