Restructured code for personas

roles/backup-provider-user/files/backup

@@ -0,0 +1 @@
+backup ALL=NOPASSWD:/usr/bin/rsync

roles/backup-provider-user/files/ssh-wrapper.sh

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+#!/bin/sh
+
+# log command
+if [ -n "$SSH_ORIGINAL_COMMAND" ]
+then
+  echo "`/bin/date`: $SSH_ORIGINAL_COMMAND" | systemd-cat -t "ssh-wrapper.sh"
+fi
+
+# define executable commands
+get_hashed_machine_id="sha256sum /etc/machine-id";
+hashed_machine_id="$($get_hashed_machine_id | head -c 64)"
+get_backup_types="find /Backups/$hashed_machine_id/ -maxdepth 1 -type d -execdir basename {} ;";
+
+
+# @todo This configuration is not scalable yet. If other backup services then backup-docker-to-local are integrated, this logic needs to be optimized
+get_version_directories="ls -d /Backups/$hashed_machine_id/backup-docker-to-local/*"
+last_version_directory="$($get_version_directories | tail -1)"
+rsync_command="sudo rsync --server --sender -blogDtpre.iLsfxCIvu . $last_version_directory/"
+
+# filter commands
+case "$SSH_ORIGINAL_COMMAND" in
+	"$get_hashed_machine_id")
+		$get_hashed_machine_id
+		;;
+	"$get_version_directories")
+		$get_version_directories
+		;;
+	"$get_backup_types")
+		$get_backup_types
+		;;
+	"$rsync_command")
+		$rsync_command
+		;;
+	*)
+		echo "This command is not supported."
+		exit 1
+		;;
+esac