Iâ€™m storing my blogâ€™s images in Azure storage and serve them via Azure CDN for a better performance. However, the images didnâ€™t have a Cache-Control header so far, so they wouldnâ€™t get cached as much / as long as I wanted to. And while setting the CacheControl property on my Azure Storage blobs manually is possible, I didnâ€™t want to do that, but rather have it automated. Azure and automation? Functions to the rescue!