serve static files from CDN about covid

[gavento]

Note: Main data files (JSON) are already served from GCS storage, which scales extremely well. We can upload assets too, I guess?

[hnykda]

@jez4 I just realized that I did something in the past (it's not in master anymore): https://github.com/epidemics/covid/pull/122/files

^ you IMO want to take this and move it to the deploy branch only (so it's iterated only on deploy) and in addition of setting that public access and cache control actually uploading everything gzipped.

[jez4]

I have managed to upload static files to the bucket gzipped. Now the templates.

[jez4]

@hnykda I am checking the deploy action in pythonapp.yml. I should add the gsutil cp there? I will need some more description :)

[hnykda]

Yes, it should be there on a deploy step. The command is IMO equivalent to the `push_to_bucket

The hard part seems to be actually rendering templates with different static URL paths for static files (I asked about it here encode/starlette#884).

In the first case, I propose to use something like:

APP_DEBUG = True  # local dev
STATIC_URL= "/static" if APP_DEBUG else "https://storage.googleapis.com/static-covid/static/"

...
def someview():
    return Template("<template>.html", {STATIC_URL: STATIC_URL})  # using e.g. `{{STATIC_URL}}/js/lines.js`

[jez4]

I should use {{ STATIC_URL }} for templates

[jez4]

The templates are done. Now just to perfect the workflow. I will ask for review afterwards.

[hnykda]

Closed via #333