Hi all!
I currently run NC24.0.2 in docker on a VPC.
I started having an issue with my NC calendar - it would not scroll through months, would not update. That happened right after I created another NC user and shared one of my calendars with them. I decided to restore an older backup (made right before upgrading to 24.0.2 from 24.0.1).
I followed the official guide to make a backup, modified all commands to run in docker. I have several backups by now (data/ config/ and sqldump). Until today I never tested the validity of the backups.
This is the approximate order of things to restore backup:
docker-compose up -d
sudo rm -rf nextcloud-docroot/{data,config}
sudo rsync -Aavx ~/backup/nc-{data,config}_20220623/ nextcloud-docroot/{config,data}/
docker-compose exec nextcloud_db mysql -u nextcloud -pp@$$w0rd -e "DROP DATABASE nextcloud"
docker-compose exec nextcloud_db mysql -u nextcloud -pp@$$w0rd -e "CREATE DATABASE nextcloud CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci"
docker exec nextcloud_db mysql -u nextcloud -pp@$$w0rd nextcloud < ~/backup/nc-sqlbkp_20220623.bak
When I restore files/folders, I can launch the instance, but I don’t have my files/calendar etc. Then I try to restore SQL DB, turn off maintenance mode, it dumps a bunch of errors:
Log with a bunch of errors afer restoring DB
My suspicion that the backup is wrong. Could that be possible, if restore ran w/o errors? My DB dump size is about 4.7-4.8 MB. and it increased among the backups, so I assume it is a good dump.
I also have a string in my docker-compose.yml
:
environment:
- MYSQL_RANDOM_ROOT_PASSWORD=true
Does that affect creating/restoring backups? During backup creation/restoration I used the MYSQL_USER password as you can see above. What could be my problem, and how to properly restore my backup?
P.S. I tried pulling the 24.0.1 docker image and restore there - with no differences in behavior
P.P.S. Another possibly useful line in my docker logs -f nextcloud
:
nextcloud | Error while trying to create admin user: Failed to connect to the database: An exception occurred in the driver: SQLSTATE[HY000] [2002] Connection refused
I noticed that after restoration of my configs and data - I can start the instance and it prompts me to upgrade, but everything crashes specifically after I attempt to restore the DB