Nextcloud Upgrade

Description of the Nextcloud upgrade process.

Upgrade major release

  • Define config.
export NEXTCLOUD_CONTAINER=nextcloud02
export DATABASE_CONTAINER=postgres07
  • Backup volumes and database.
docker-volume-backup -a -c $NEXTCLOUD_CONTAINER
docker-postgres-backup -a -c $DATABASE_CONTAINER
  • Update Nextcloud image tag.
nextcloud_image: nextcloud:21.0.5-apache

  • Deploy the new container

  • Tail the log while the upgrade is performed

docker logs -f $NEXTCLOUD_CONTAINER

Troubleshooting

Update fails - major versions unsupported

Problem

While upgrading this error occurs.

Configuring Redis as session handler
Initializing nextcloud 22.1.0.1 ...
Upgrading nextcloud from 20.0.8.1 ...
Initializing finished
Nextcloud or one of the apps require upgrade - only a limited number of commands are available
You may use your browser or the occ upgrade command to do the upgrade
Setting log level to debug
Turned on maintenance mode
Exception: Updates between multiple major versions and downgrades are unsupported.
Update failed
Maintenance mode is kept active
Resetting log level

Solution

You are not allowed to skip a major version while upgrading. Make sure to upgrade incrementally.

Further you have to restore the inital state as the config has been changed. Use docker-volume-restore to perform this action.