Better logging of no space left on disk

[mjarkk]

• Gitea version (or commit ref): 1.7, 1.8, 1.8.3, 1.9 (Docker version)
• Git version: (Unknown due to usage of docker container)
• Operating system: CoreOS
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
  • Not relevant
• Log gist: (This is a log from v1.8)

2019/07/10 09:14:46 [I] Gitea vbafa9ff built with go1.11.9 : bindata, sqlite, sqlite_unlock_notify
2019/07/10 09:14:51 [T] AppPath: /app/gitea/gitea
2019/07/10 09:14:51 [T] AppWorkPath: /app/gitea
2019/07/10 09:14:51 [T] Custom path: /data/gitea
2019/07/10 09:14:51 [T] Log path: /data/gitea/log
2019/07/10 09:14:52 [T] AppPath: /app/gitea/gitea
2019/07/10 09:14:52 [T] AppWorkPath: /app/gitea
2019/07/10 09:14:52 [T] Custom path: /data/gitea
2019/07/10 09:14:52 [T] Log path: /data/gitea/log
2019/07/10 09:14:53 [T] AppPath: /app/gitea/gitea
2019/07/10 09:14:53 [T] AppWorkPath: /app/gitea
2019/07/10 09:14:53 [T] Custom path: /data/gitea
2019/07/10 09:14:53 [T] Log path: /data/gitea/log
2019/07/10 09:14:54 [T] AppPath: /app/gitea/gitea
2019/07/10 09:14:54 [T] AppWorkPath: /app/gitea
2019/07/10 09:14:54 [T] Custom path: /data/gitea
2019/07/10 09:14:54 [T] Log path: /data/gitea/log
2019/07/10 09:14:55 [T] AppPath: /app/gitea/gitea
2019/07/10 09:14:55 [T] AppWorkPath: /app/gitea
2019/07/10 09:14:55 [T] Custom path: /data/gitea
2019/07/10 09:14:55 [T] Log path: /data/gitea/log
2019/07/10 09:14:56 [T] AppPath: /app/gitea/gitea
2019/07/10 09:14:56 [T] AppWorkPath: /app/gitea
2019/07/10 09:14:56 [T] Custom path: /data/gitea
2019/07/10 09:14:56 [T] Log path: /data/gitea/log
2019/07/10 09:14:57 [T] AppPath: /app/gitea/gitea
2019/07/10 09:14:57 [T] AppWorkPath: /app/gitea
2019/07/10 09:14:57 [T] Custom path: /data/gitea
2019/07/10 09:14:57 [T] Log path: /data/gitea/log
2019/07/10 09:14:58 [T] AppPath: /app/gitea/gitea
2019/07/10 09:14:58 [T] AppWorkPath: /app/gitea
2019/07/10 09:14:58 [T] Custom path: /data/gitea
2019/07/10 09:14:58 [T] Log path: /data/gitea/log
2019/07/10 09:14:59 [T] AppPath: /app/gitea/gitea
2019/07/10 09:14:59 [T] AppWorkPath: /app/gitea
2019/07/10 09:14:59 [T] Custom path: /data/gitea
2019/07/10 09:14:59 [T] Log path: /data/gitea/log
2019/07/10 09:15:00 [T] AppPath: /app/gitea/gitea
2019/07/10 09:15:00 [T] AppWorkPath: /app/gitea
2019/07/10 09:15:00 [T] Custom path: /data/gitea
2019/07/10 09:15:00 [T] Log path: /data/gitea/log
2019/07/10 09:15:01 [T] AppPath: /app/gitea/gitea
2019/07/10 09:15:01 [T] AppWorkPath: /app/gitea
2019/07/10 09:15:01 [T] Custom path: /data/gitea
2019/07/10 09:15:01 [T] Log path: /data/gitea/log
...
...

Description

Today i made a push to the server and noticed after that that the server stopped working.
After a way to long time debugging i found the problem being that the disk was 100% full.

Somewhere in a gitea issue i found a notice about not having not enough space and that's how i finally found why gitea crashed.

It would be great if gitea shows me that i've not enough space left on the disk because the current logging (see logging) doesn't help a lot.

If it's not possible to show that i don't have enough disk space it would be at least nice if there was some more verbose logging in the docker logs.

Screenshots

Gitea did not start So i only have a 503 proxy error what is not worth making a screenshot of.

[wxiaoguang]

The logger system has changed a lot, maybe it could print better messages now?

Feel free to reopen if there is still something to be improved.