Fix/Repair/(Re-)Register Univention Apps

Regarding to this topic, it seems I’ve “unregistered” my Nextcloud instance.

Is there any possibility to re-register existing UCS Apps?

meg@ucs-cloud01:~$ sudo univention-app list | grep -B 3 "Installations: ucs.cloud01"
matterbridge
  Name: Matterbridge
  Latest version: 1.14.4
  Installations: ucs-cloud01.
--
mattermost
  Name: Mattermost
  Latest version: 5.25.5
  Installations: ucs-cloud01.
--
prometheus
  Name: UCS Dashboard Database
  Latest version: 1.1-1
  Installations: ucs-cloud01.
--
prometheus-node-exporter
  Name: UCS Dashboard Client
  Latest version: 1.1
  Installations: ucs-cloud01.
--
rocketchat
  Name: Rocket.Chat
  Latest version: 3.7.4
  Installations: ucs-cloud01.
--
seafile
  Name: Seafile Professional
  Latest version: 7.0.10
  Installations: ucs-cloud01.
--
wordpress
  Name: WordPress
  Latest version: 5.2.3
  Installations: ucs-cloud01.
--
zammad
  Name: Zammad
  Latest version: 3.6.0-42
  Installations: ucs-cloud01.

vs

meg@ucs-cloud01:~$ sudo docker images
REPOSITORY                                                    TAG                 IMAGE ID            CREATED             SIZE
docker.software-univention.de/nextcloud                       20.0.9-0            1e6e540ebbd7        6 weeks ago         1.11GB
docker.software-univention.de/zammad-zammad-backup            3.6.0-42            4f28c58afd3a        4 months ago        37.8MB
docker.software-univention.de/zammad-zammad-postgresql        3.6.0-42            4f28c58afd3a        4 months ago        37.8MB
docker.software-univention.de/zammad-zammad-elasticsearch     3.6.0-42            0a7bf0dd80c5        4 months ago        809MB
docker.software-univention.de/zammad-zammad-init              3.6.0-42            6314b13b85f9        4 months ago        601MB
docker.software-univention.de/zammad-zammad-nginx             3.6.0-42            6314b13b85f9        4 months ago        601MB
docker.software-univention.de/zammad-zammad-railsserver       3.6.0-42            6314b13b85f9        4 months ago        601MB
docker.software-univention.de/zammad-zammad-scheduler         3.6.0-42            6314b13b85f9        4 months ago        601MB
docker.software-univention.de/zammad-zammad-websocket         3.6.0-42            6314b13b85f9        4 months ago        601MB
docker.software-univention.de/rocketchat-rocketchat           3.7.4               fe888722d7b0        5 months ago        1.62GB
docker.software-univention.de/zammad-zammad-memcached         3.6.0-42            10b1bc7c0021        5 months ago        9.48MB
docker.software-univention.de/mattermost                      5.25.5              c2401eb81f2c        7 months ago        716MB
docker.software-univention.de/rocketchat-mongo-init-replica   3.7.4               1f4b16ab9308        9 months ago        421MB
docker.software-univention.de/rocketchat-mongo                3.7.4               1f4b16ab9308        9 months ago        421MB
docker.software-univention.de/nextcloud                       17.0.2-0            043861cab1ae        16 months ago       663MB
docker.software-univention.de/seafile-db                      7.0.10              166ff9f20c51        18 months ago       352MB
docker.software-univention.de/seafile-seafile                 7.0.10              c1c8a8ddfc6d        19 months ago       1.81GB
docker.software-univention.de/wordpress                       5.2.3               60ac6c58f219        20 months ago       548MB
docker.software-univention.de/seafile-elasticsearch           7.0.10              d061927008b4        24 months ago       486MB
docker.software-univention.de/matterbridge                    1.14.4              e1931aab2621        2 years ago         149MB
mongo                                                         3.4.19              056cb4b05c15        2 years ago         376MB
rocketchat/rocket.chat                                        0.74.2              6e1a1bfa033a        2 years ago         1.45GB
docker.software-univention.de/rocketchat-rocketchat           0.73.2              efcf098cbcb5        2 years ago         1.45GB
docker.software-univention.de/univention-mattermost           5.6.3               47933c7ea448        2 years ago         719MB
docker.software-univention.de/nextcloud                       14.0.6-0            581af9be14e0        2 years ago         600MB
docker.software-univention.de/rocketchat-mongo                0.73.2              fb885d89ea5c        2 years ago         300MB
docker.software-univention.de/prometheus                      1.1-1               f92db1f1a7ce        2 years ago         97.7MB
docker.software-univention.de/matterbridge                    1.11.3              5a6a2b27a13b        2 years ago         102MB
zammad/zammad-docker-univention                               latest              7f7b681b99c0        3 years ago         721MB
docker.software-univention.de/seafile-memcached               7.0.10              855fdf342eda        3 years ago         58.6MB

So, can I register my nextcloud instance without loosing the data?

Thanks a lot,
best,
meg

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