domzippilli / gcs-proxy-cloud-run Goto Github PK

Hi,

I am analyzing your code by following the tutorial https://cloud.google.com/community/tutorials/cloud-run-golang-gcs-proxy
I need to be able to download files over 32MB (which is the limit with cloudRun http/1), while being able to add cloudArmor with policy rules (which I cannot do with bucket service).
So your streaming is a good solution for my need.

When I test your proxy, I have the following error :

Response size was too large. Please consider reducing response size.

So I guess it is not using streaming. When I configure the h2c port in the cloudRun service, I have the error

upstream connect error or disconnect/reset before headers. reset reason: protocol error

By checking your code, it seems indeed that you do not handle specifically the http/2 protocol, but only the http/1.

So do I miss something ? How do you handle the streaming on 8080 without http/2 ?
Thanks for your help

Hello.
I read your nice tutorial.https://cloud.google.com/community/tutorials/cloud-run-golang-gcs-proxy
I needed a simple proxy.

The problem I encountered is that some files cannot be displayed in safari.
The cause is that it does not support HTTP range requests.
https://blog.logrocket.com/streaming-video-in-safari/

golang supports HTTP range requests.
io.Copy -> http.ServeContent
https://stackoverflow.com/questions/36540610/how-to-serve-http-partial-content-with-go
https://pkg.go.dev/net/http#ServeContent

The main benefit of ServeContent over io.Copy is that it handles Range requests properly, sets the MIME type, and handles If-Match, If-Unmodified-Since, If-None-Match, If-Modified-Since, and If-Range requests.

Thank you for reading.