MEDIA_URL bug, can't get valid img url from cgw-web service

[alexvarko]

I'm trying to download chain_logo and currency_logo on chain settings via cfg/admin. I have tried next configurations:

1. When MEDIA_URL = "/media"

• icon saved to cfg-web container on path /app/src/media/PATH_TO_ICON
• on chain settings, it shows url for icon as https://localhost:8000/media/PATH_TO_ICON
• icon opens on path https://localhost:8000/cfg/media/PATH_TO_ICON
• ui service fails to upload icons from path https://nginx/media/PATH_TO_ICON
  
• From https://DOMAIN/cfg/api/v1/chains/ return url with /media/PATH_TO_ICON, I can handle correct url with nginx: rewrite ^(/(media)(/.*)?)$ /cfg$1 last;
  
• From https://localhost:8000/cgw/v1/chains return incorrect url

2. When MEDIA_URL = "https://localhost:8000/media"

• icon saved to cfg-web container on path /app/src/media/PATH_TO_ICON
• on chain settings, it shows url for icon as https://localhost:8000/media/PATH_TO_ICON
• icon doesn't open on path https://localhost:8000/cfg/media/PATH_TO_ICON or https://localhost:8000/media/PATH_TO_ICON
• ui service fails to upload icons from path https://localhost:8000/media/PATH_TO_ICON
• From https://localhost:8000/cgw/v1/chains return url with DOMAIN

• 404 error on path https://localhost:8000/cfg/media/PATH_TO_ICON

3. When MEDIA_URL = "https://localhost:8000/cfg/media"

• icon saved to cfg-web container on path /app/src/media/PATH_TO_ICON
• on chain settings, it shows url for icon as https://localhost:8000/cfg/media/PATH_TO_ICON
• icon doesn't open on path https://localhost:8000/cfg/media/PATH_TO_ICON or https://localhost:8000/media/PATH_TO_ICON
• ui service fails to upload icons from path https://localhost:8000/cfg/media/PATH_TO_ICON - 404(django)

So, the only way to download and open the icon via a direct link, when MEDIA_URL="/media/”, as described in the first configuration.