keep aria2 control file and use it for labsync-seeder service

packer/ansible/roles/labsync/files/labsync-seeder.sh

@@ -2,15 +2,15 @@
 
 set -e
 
-cd /tmp
+cd /var/lib/labsync
 
 ln -s "$LABSYNC_SQUASHFS_LV" "$LABSYNC_SQUASHFS_FILE"
 
 exec aria2c \
 	--allow-overwrite \
-	--check-integrity \
 	--seed-ratio=0.0 \
 	--summary-interval=60 \
 	--file-allocation=none \
 	--enable-dht=false \
+	--force-save \
 	"$LABSYNC_TORRENT"

packer/initramfs/labsync

@@ -176,6 +176,7 @@ PARTTABLE
 				--summary-interval=0 \
 				--file-allocation=none \
 				--enable-dht=false \
+				--force-save \
 				/tmp/torrent
 		)
 	else
@@ -201,6 +202,9 @@ PARTTABLE
 	echo $hostname > ${rootmnt}/etc/hostname
 	sed "s/@@HOSTNAME@@/$hostname/" ${rootmnt}/etc/hosts.template > ${rootmnt}/etc/hosts
 
+	mkdir -p ${rootmnt}/var/lib/labsync
+	cp /tmp/torrent.aria2 ${rootmnt}/var/lib/labsync
+
 	if [ -z "$labsync_localboot" ]; then
 		labsync_set_environment LABSYNC "$torrent_name"
 		labsync_set_environment LABSYNC_TORRENT "${labsync_torrent}"