Every docker-compose down and docker-compose up will create a new ssh key. Try to move a key into the conf dir.
docker-compose down
docker-compose up
backup ssh srials from container https://gitbucket.pgollor.de/docker/gitbucket/commit/d9e4f72f9256e6008356555b6a4aa6201af8d469
add restore script
solved via ./backup.sh restore sshkeys
./backup.sh restore sshkeys
Every
docker-compose down
anddocker-compose up
will create a new ssh key. Try to move a key into the conf dir.