backup

commit 8eedfbb0e9133b2bfb266013244540a97f78bd73
Author: Daniel Moch <daniel@danielmoch.com>
Date:   Mon, 18 Jun 2018 05:14:21 -0400

Initial commit

Diffstat:
A
TODO.txt
 | 
5
+++++
A
backup
 | 
62
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A
backup.service
 | 
6
++++++
A
backup.timer
 | 
9
+++++++++

4 files changed, 82 insertions(+), 0 deletions(-)
diff --git a/TODO.txt b/TODO.txt
@@ -0,0 +1,5 @@
+1. Config file to parameterize
+    a. Auto mount
+    b. Folders to back up
+    c. Destination folder
+2. backup --init should run Borg init (and generate a password?)
diff --git a/backup b/backup
@@ -0,0 +1,62 @@
+#!/bin/sh
+OUTPUT=/var/log/tc_backup.log
+if [ $EUID -ne 0 ]
+then
+    echo "`date`: Must be run as root" >> $OUTPUT
+    exit 1
+fi
+TC_MOUNTPOINT=/mnt/timecapsule
+TC_SERVER=timecapsule.djmoch.org
+PASSFILE=/root/secret/ft
+
+__cleanup()
+{
+    if [ -n "$TC_MOUNTED" ]
+    then
+        umount $TC_MOUNTPOINT
+        echo "Time Capsule unmounted" >> $OUTPUT
+        unset TC_MOUNTED
+    fi
+}
+
+
+echo "Beginning backup: `date`" >> $OUTPUT
+
+# Only do the following if server is reachable
+starttime=`date '+%s'`
+runningtime=0
+while [ $runningtime -le 120 ]
+do
+    if ping -c 1 danielmoch.com > /dev/null 2>&1
+    then
+	connected=1
+	break
+    fi
+    sleep 1
+    runningtime=$((`date '+%s'` - $starttime))
+done
+
+if [ -n "$connected" ]
+then
+    echo "$TC_SERVER reachable. Proceeding." >> $OUTPUT
+else
+    echo "$TC_SERVER NOT reachable. Exiting." >> $OUTPUT
+    echo "Ending backup: `date`" >> $OUTPUT
+    exit -1
+fi
+
+if mount $TC_MOUNTPOINT >> $OUTPUT 2>&1
+then
+    echo "Time Capsule successfully mounted" >> $OUTPUT
+    TC_MOUNTED=1
+else
+    echo "Time Capsule mount FAILED. Quitting." >> $OUTPUT
+    echo "Ending backup: `date`" >> $OUTPUT
+    exit -2
+fi
+
+BORG_PASSPHRASE=`cat $PASSFILE` borg create --stats /mnt/timecapsule/$HOSTNAME.borg::`date '+%Y%m%d'` /etc /root /home >> $OUTPUT 2>&1
+
+df | grep "Filesystem\|$TC_MOUNTPOINT" >> $OUTPUT
+__cleanup
+echo "Ending backup: `date`" >> $OUTPUT
diff --git a/backup.service b/backup.service
@@ -0,0 +1,6 @@
+[Unit]
+Description=Backup service
+
+[Service]
+Type=simple
+ExecStart=/root/bin/backup
diff --git a/backup.timer b/backup.timer
@@ -0,0 +1,9 @@
+[Unit]
+Description=Backup service timer
+
+[Timer]
+OnCalendar=*-*-* 3:00:00
+Persistent=yes
+
+[Install]
+WantedBy=timers.target