maintenance

useful maintenance commands for our ec2 machines

https://medium.com/@m.yunan.helmy/increase-the-size-of-ebs-volume-in-your-ec2-instance-3859e4be6cb7

overall disk usage

du -sh

top directories by size

sudo du -hsx * | sort -rh | head -10

trim /var/log/journal/

sudo journalctl --vacuum-size=200M sudo journalctl --vacuum-time=10d

unused docker images

docker system prune -a

yarn cache

yarn cache clean

find out why ec2 instance rebooted

journalctl --since "1 hour ago" --no-pager | grep -i "reboot|shutdown|panic|oom" journalctl -b -1 -n 50 --no-pager last -x reboot shutdown cat /var/log/unattended-upgrades/unattended-upgrades.log