Use credentials from a string

[IlyaSemenov]

For some reason django-gcloud-storage needs Google SA credentials specifically stored in a file, which contracts the modern 12 factor approach where the apps/containers are stateless and everything is passed via environment variables.

Will you please add support for GCS_CREDENTIALS (as opposed to GCS_CREDENTIALS_FILE_PATH)? gcloud itself already supports it with storage.Client(credentials=google.auth.jwt.Credentials.from_service_account_info(json.load(base64.b64decode(settings.GCS_CREDENTIALS).decode("utf-8")))) (vs. storage.Client.from_service_account_json)

[strayer]

This would probably be a simple change mostly here. Feel free to open a PR with this. Alternatively this may already be possible with django-storages, since it supports gcloud natively for a while now.

[IlyaSemenov]

Thank you, django-storages worked for me.