Adds a `DiskSpace` error variant and an `is_disk_full()` helper
alongside a `check_disk_space()` util that uses libc's `statsfs` on
unix. FC now detects disk space errors and logs recovery instructions
if applicable.
Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ia6d2c472219dc9d6eed6901dc733d7bb6a6a6964
Can be configured from the config file, and also using environment
options.
```toml
[database]
url = "postgresql://fc_ci:password@localhost/fc_ci"
max_connections = 20
min_connections = 5
connect_timeout = 30
idle_timeout = 600
max_lifetime = 1800
```
We'll want to support SQlite in the future, and better secret handling
for database credentials. For now, this is workable.
---
Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I36b4c1306511052a2748ca9d5d3429366a6a6964
