Feature Request

Environment

AWS

Desired Feature

Ignition should support AWS EC2 instance user data returned as gzip-encoded.

AWS EC2 instance user data is an opaque blob limited to 16384 bytes prior to being stored as base64-encoded content. User data is commonly compressed as space is limited (e.g. cloud-init). While Ignition provides mechanisms to minimize the size of a config by utilizing external systems (e.g. S3), it would be useful to provide support for large self-contained Ignition configs on AWS without needing to manage or depend on the complexities of external systems.

Other Information

Detecting a gzip-stream from user data and decompressing before sending to util.ParseConfig should be a straightforward change. If this feature request seems like a good idea, I can submit a PR.