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sudo apt-get install duply python-paramiko trickle

Create backup profile:

duply gitlab create

Profile file $HOME/.duply/gitlab/conf was created.

Generate random password:

openssl rand -base64 20

~/.duply/gitlab/conf

#GPG_KEY=
GPG_PW='<generated passsword>'

Configure backup section:

~/.duply/gitlab/conf

# Paramiko SSH is very CPU consuming
#TARGET='scp://gitlabbackup@192.168.0.230//mnt/backup/gitlabbackup'

TARGET='sftp://gitlabbackup@192.168.0.230//mnt/backup/gitlabbackup'

# Limit network speed
DUPL_PRECMD="trickle -s -u 1500 -d 256"

SOURCE='/'
MAX_AGE=6M

VOLSIZE=256
DUPL_PARAMS="$DUPL_PARAMS --volsize $VOLSIZE "

# Specify different id_rsa file:
DUPL_PARAMS="$DUPL_PARAMS --ssh-options=-oIdentityFile='/root/.duply/gitlab/id_rsa' "
DUPL_PARAMS="$DUPL_PARAMS --no-compression "

~/.duply/gitlab/exclude

+ /etc/gitlab
+ /opt
+ /home
+ /root
- **

Start the backup

sudo duply gitlab backup --progress

duply gitlab status
duply gitlab list
 
duply gitlab verify  # long operation

SFTP and rbash