This is my contribute to limit the used space.
On running HASSIO host machine:
Remove images not used by containers
docker image prune -a
Remove containers not used on last 24hours
docker container prune --filter "until=24h"
Remove volumes not used by containers
docker volume prune
Check space used by logs
journalctl --disk-usage
Remove journald log files
journalctl --rotate
journalctl --vacuum-time=1m
Free +10Gb on my PI3 with this configuration:
| arch | armv7l |
|---|---|
| chassis | embedded |
| dev | false |
| docker | true |
| hassio | true |
| host_os | HassOS 4.10 |
| installation_type | Home Assistant |
| os_name | Linux |
| os_version | 4.19.126-v7 |
| python_version | 3.7.7 |
| supervisor | 227 |
| timezone | Europe/Rome |
| version | 0.110.6 |
| virtualenv | false |