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This AWS lambda function can be used to keep an s3-hosted yum repository updated when rpm packages are uploaded / deleted. It is equivalent to using createrepo and an s3cmd sync. Only a temporary copy of the repo metadata is needed locally, so there's no need to keep a full close of the repository and all it's packages. This data is also very useful if packages are uploaded by many users or systems. Having a single lambda function will ensure all new packages are added to the repository metadata, avoiding issues with concurrent updates.

The upload of a new package to s3 should be handled by whatever client is used to build the rpm, e.g. a CI system like Jenkins. The S3 bucket should be configured to send events to the lambda function when a file is uploaded or deleted. The function then downloads the repodata, the new rpm (if added), updates and uploads back to the S3 bucket.

For full step-by-step installation instructions see docs/install.md.

See the releases section of the repo for pre-built zip files containing required dependencies.

Create an S3 bucket to host the yum repository. Create a lambda function, with appropriate access to the bucket. Add the S3 event to the bucket and point at the lambda function.

https://github.com/seporaitis/yum-s3-iam

https://wiki.jenkins-ci.org/display/JENKINS/S3+Plugin