Migrate from Seafile deployment to Seafile Docker | SQL-data issues



I’m trying to migrate from Seafile deployment to Seafile Docker and having issues with getting the database data into the volume. I’m getting following connection error:

seafile    | verifying password of user root ...  done
seafile    |
seafile    | verifying password of user seafile ...
seafile    | Failed to connect to mysql server using user "seafile" and password "***": Access denied for user 'seafile'@'localhost' (using password: YES)
seafile    |
seafile    | Traceback (most recent call last):
seafile    |   File "/scripts/start.py", line 86, in <module>
seafile    |     main()
seafile    |   File "/scripts/start.py", line 56, in main
seafile    |     init_seafile_server()
seafile    |   File "/scripts/bootstrap.py", line 126, in init_seafile_server
seafile    |     call('{} auto -n seafile'.format(setup_script), env=env)
seafile    |   File "/scripts/utils/__init__.py", line 68, in call
seafile    |     return subprocess.check_call(*a, **kw)
seafile    |   File "/usr/lib/python2.7/subprocess.py", line 190, in check_call
seafile    |     raise CalledProcessError(retcode, cmd)
seafile    | subprocess.CalledProcessError: Command '/opt/seafile/seafile-server-6.3.4/setup-seafile-mysql.sh auto -n seafile' returned non-zero exit status 255
seafile    | *** /scripts/start.py exited with status 1.
seafile    | *** Shutting down runit daemon (PID 32)...
seafile    | *** Running /etc/my_init.post_shutdown.d/10_syslog-ng.shutdown...
seafile    | Mar 10 20:24:11 313fa3993ac8 syslog-ng[25]: syslog-ng shutting down; version='3.13.2'
seafile    | *** Killing all processes...

Before I imported the sql-dump-data via:

docker exec -i seafile mysql -h127.0.0.1 -useafile -p<my_password> seahub_db  < /path_to/seahub-database.sql
docker exec -i seafile mysql -h127.0.0.1 -useafile -p<my_password> seafile_db < /path_to/seafile-database.sql
docker exec -i seafile mysql -h127.0.0.1 -useafile -p<my_password> ccnet_db   < /path_to/ccnet-database.sql

I already added privileges to seafile@localhost to all three databases

select user,host from mysql.user;
| user    | host         |
| seafile |    |
| seafile | localhost    |

Do somebody has some hints for me regarding the migration process?

Thanks, Dominik