I have Ubuntu 18.04 server running on Google Cloud Platform, which hosts a website(Nginx, Flask).
For some reason, it stopped working today, so that I could not ssh into it using terminal, or even GCP console.
After some research I decided that problem may be space on disk and extended it from 10GB to 20GB, but nothing changed until I stopped the instance and started it again, when saw that only about 30% of space was used(so, 60% before that case).
Site does some web scraping(Python3) and saves log information, in which I saw multiple unexpected errors like "Temporary failure in name resolution". In server access and error logs I did not see anything useful to explain this case,
so, do you have any idea, what may be the reason of this problem or how can I find that out?