initial commit

backup.sh

@@ -0,0 +1,108 @@
+#!/usr/bin/env bash
+# This script is intended to be run by a systemd timer
+
+# Exit on failure or pipefail
+set -e -o pipefail
+
+#Set this to any location you like
+BACKUP_PATHS="/"
+BACKUP_EXCLUDES="/etc/restic/exclude"
+
+LOG_DIR="/var/log/restic"
+LOG_BASENAME="backup"
+LOG_FILE="$LOG_DIR/$LOG_BASENAME-$(date +%Y%m%d%H%M%S)"
+LOG_KEEP=14
+
+BACKUP_TAG=$(hostname -s)
+
+STARTTIME=$(date "+%Y-%m-%d %H:%M:%S")
+
+# How many backups to keep.
+RETENTION_DAYS=7
+RETENTION_WEEKS=4
+RETENTION_MONTHS=3
+RETENTION_YEARS=1
+
+source /etc/restic/env
+
+
+
+# Paths to binaries
+CURL="/usr/bin/curl"
+TEE="/usr/bin/tee"
+FIND="/usr/bin/find"
+RESTIC="/usr/bin/restic"
+ECHO="/usr/bin/echo"
+
+HOST=$(hostname -s)
+
+# define functions
+run_backup () {
+#Do the backup
+	${ECHO} "Starting backup on $HOST at $STARTTIME"
+	${RESTIC} backup \
+		--tag $BACKUP_TAG \
+		--exclude-file $BACKUP_EXCLUDES \
+		$BACKUP_PATHS
+	return $?
+}
+
+run_forget (){
+	# Remove old Backups
+	${ECHO} "Removing old backups per retention settings"
+	${RESTIC} forget \
+		--tag $BACKUP_TAG \
+		--prune \
+		--keep-daily $RETENTION_DAYS \
+		--keep-weekly $RETENTION_WEEKS \
+		--keep-monthly $RETENTION_MONTHS \
+		--keep-yearly $RETENTION_YEARS
+	return $?
+}
+
+run_check () {
+	# Check if everything is fine
+	${ECHO} "Running check"
+	${RESTIC} check
+	return $?
+}
+
+cleanup () {
+	# Remove locks in case other stale processes kept them in
+	${ECHO} "Removing lockfile"
+	${RESTIC} unlock
+	${ECHO} "Removing logs ($LOG_DIR/$LOG_BASE-*) older than $LOG_KEEP days"
+	${FIND} $LOG_DIR -name $LOG_BASE-* -mtime +$LOG_KEEP
+}
+
+send_matrix () {
+	key="***REMOVED***"
+	room_id="***REMOVED***"
+	${CURL} -skd "{\"body\": \"$1\"}" http://192.168.0.101:4785/\?key\=$key\&room_id\=$room_id > /dev/null
+}
+
+notify () {
+	#notify works either from stdin or from $1, so you can call it as
+	# notify "text to send"
+	# or
+	# echo "text to send" | notify
+	local message=$1
+	if [ -z "$message" ]; then
+		read message
+	fi
+	
+	# call whatever notification script/function you wish with "$message" as the part you want to show
+	send_matrix "$message"
+}
+
+# Do the actual work
+if run_backup && restic unlock && run_forget && cleanup; then
+# run_check
+#cleanup
+	ENDTIME=$(date "+%Y-%m-%d %H:%M:%S")
+#status_total=$(( check_status + backup_status + forget_status ))
+#if (( status_total == 0 ));then
+	${ECHO} "Backup on $HOST completed successfully at $ENDTIME" | tee -a $LOG_FILE >(notify)
+else
+	${ECHO} "Backup on $HOST completed at $ENDTIME with issues (see $LOG_FILE)" | tee -a $LOG_FILE >(notify)
+fi