Docker-compose : mysqld: Can't create/write to file '/var/lib/mysql/is_writable' (Errcode: 13 - Permission denied)
I had to change ./db/data user:group to 999:999, so docker user is who is making the changes.
sudo chown 999:999 ./db/data
I had to change ./db/data user:group to 999:999, so docker user is who is making the changes.
sudo chown 999:999 ./db/data