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Valentin Lab
d84472a277
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4 years ago | |
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build | 4 years ago | |
hooks | 4 years ago | |
resources/bin | 4 years ago | |
README.org | 4 years ago | |
metadata.yml | 4 years ago |
README.org
rsync-backup-target
Usage of this service
Configuration example
rsync-backup-target: # docker-compose: # ports: # - "10023:22" options: admin: ## These keys are for the allowed rsync-backup to write stuff with rsync myadmin: - "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDESdz8bWtVcDQJ68IE/KpuZM9tAq\ ZDXGbvEVnTg16/yWqBGQg0QZdDjISsPn7D3Zr64g2qgD9n7EZghfGP9TkitvfrBYx8p\ 7JkkUyt8nxklwOlKZFD5b3PF2bHloSsmjnP8ZMp5Ar7E+tn1guGrCrTcFIebpVGR3qF\ hRN9AlWNR+ekWo88ZlLJIrqD26jbWRJZm4nPCgqwhJwfHE3aVwfWGOqjSp4ij+jr2ac\ Arg7eD4clBPYIqKlqbfNRD5MFAH9sbB6jkebQCAUwNRwV7pKwCEt79HnCMoMjnZh6Ww\ 6TlHIFw936C2ZiTBuofMx7yoAeqpifyzz/T5wsFLYWwSnX rsync@zen"
Adding new keys for backup
This can be done through the admin accounts configured in compose.yml
.
You can use then ssh myadmin@$RSYNC_BACKUP_TARGET ssh-key
:
$ ssh myadmin@$RSYNC_BACKUP_TARGET ssh-key ls $ ssh myadmin@$RSYNC_BACKUP_TARGET ssh-key add "ssh-rsa AAA...Jdhwhv rsync@sourcelabel" $ ssh myadmin@$RSYNC_BACKUP_TARGET ssh-key ls ..Jdhwhv sourcelabel $ ssh myadmin@$RSYNC_BACKUP_TARGET ssh-key rm sourcelabel $ ssh myadmin@$RSYNC_BACKUP_TARGET ssh-key ls $
Requesting a recover only key
As an admin, by requesting a recover-only key on an ident that you own, you are allowed to read (and only read) the content of the given ident. This will allow you to give the credentials to any new host to have a direct read access so-as to deploy the backup on a new host.
$ ssh myadmin@$RSYNC_BACKUP_TARGET ssh-key request-recovery-key myident > /tmp/private_key $ chmod 500 /tmp/private_key $ rsync -e "ssh -p 22 -i /tmp/private_key -l rsync" \ -azvArH --delete --delete-excluded \ --partial --partial-dir .rsync-partial \ --numeric-ids $RSYNC_BACKUP_TARGET:/var/mirror/myident/etc/ /tmp/etc
This key will expire after 15 mn of the last recovery.
Troubleshooting
Faking access from client
This should work:
RSYNC_BACKUP_TARGET_IP=172.18.0.2 rsync -azvA -e "ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no" \ /tmp/toto "$RSYNC_BACKUP_TARGET":/var/mirror/client1
Direct ssh access should be refused
RSYNC_BACKUP_TARGET_IP=172.18.0.2 ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \ "$RSYNC_BACKUP_TARGET"
Wrong directory should be refused
RSYNC_BACKUP_TARGET_IP=172.18.0.2 rsync -azvA -e "ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no" \ /tmp/toto "$RSYNC_BACKUP_TARGET":/var/mirror/client2