genesis commit

assets/borg-exporter.sh

@@ -0,0 +1,77 @@
+#!/bin/sh
+
+set -eu
+
+PROM_FILE=/output/metrics
+TMP_FILE=$PROM_FILE.$$
+
+LIST=$(borg list | awk '{print $1}')
+COUNTER=0
+
+for i in $LIST; do
+  COUNTER=$((COUNTER+1))
+done
+
+BORG_INFO=$(borg info "::$i")
+
+ARCHIVE_PREFIX=$(echo "$BORG_INFO" | grep "Archive name" | awk '{print $3}' | awk -F- '{print $1}')
+
+echo "backup_count{archive=\"${ARCHIVE_PREFIX}\"} $COUNTER" > "$TMP_FILE"
+
+{
+  echo "backup_files{archive=\"${ARCHIVE_PREFIX}\"} $(echo "$BORG_INFO" | grep "Number of files" | awk '{print $4}')"
+  echo "backup_chunks_unique{archive=\"${ARCHIVE_PREFIX}\"} $(echo "$BORG_INFO" | grep "Chunk index" | awk '{print $3}')"
+  echo "backup_chunks_total{archive=\"${ARCHIVE_PREFIX}\"} $(echo "$BORG_INFO" | grep "Chunk index" | awk '{print $4}')"
+} >> "$TMP_FILE"
+
+function calc_bytes {
+  NUM=$1
+  UNIT=$2
+
+  case "$UNIT" in
+    B)
+      echo "$NUM" | awk '{ print $1 }'
+      ;;
+    kB)
+      echo "$NUM" | awk '{ print $1 * 1024 }'
+      ;;
+    MB)
+      echo "$NUM" | awk '{ print $1 * 1024 * 1024 }'
+      ;;
+    GB)
+      echo "$NUM" | awk '{ print $1 * 1024 * 1024 * 1024 }'
+      ;;
+    TB)
+      echo "$NUM" | awk '{ print $1 * 1024 * 1024 * 1024 * 1024 }'
+      ;;
+  esac
+}
+
+# timings
+LAST_START=$(echo "$BORG_INFO" | grep "Time (start)" | awk '{print $4" "$5}')
+LAST_END=$(echo "$BORG_INFO" | grep "Time (end)" | awk '{print $4" "$5}')
+
+LAST_START_TIMESTAMP=$(date -d "$LAST_START" +"%s")
+LAST_END_TIMESTAMP=$(date -d "$LAST_END" +"%s")
+
+# byte sizes
+LAST_SIZE=$(calc_bytes $(echo "$BORG_INFO" | grep "This archive" | awk '{print $3}') $(echo "$BORG_INFO" | grep "This archive" | awk '{print $4}'))
+LAST_SIZE_COMPRESSED=$(calc_bytes $(echo "$BORG_INFO" | grep "This archive" | awk '{print $5}') $(echo "$BORG_INFO" | grep "This archive" | awk '{print $6}'))
+LAST_SIZE_DEDUP=$(calc_bytes $(echo "$BORG_INFO" | grep "This archive" | awk '{print $7}') $(echo "$BORG_INFO" | grep "This archive" | awk '{print $8}'))
+
+TOTAL_SIZE=$(calc_bytes $(echo "$BORG_INFO" | grep "All archives" | awk '{print $3}') $(echo "$BORG_INFO" | grep "All archives" | awk '{print $4}'))
+TOTAL_SIZE_COMPRESSED=$(calc_bytes $(echo "$BORG_INFO" | grep "All archives" | awk '{print $5}') $(echo "$BORG_INFO" | grep "All archives" | awk '{print $6}'))
+TOTAL_SIZE_DEDUP=$(calc_bytes $(echo "$BORG_INFO" | grep "All archives" | awk '{print $7}') $(echo "$BORG_INFO" | grep "All archives" | awk '{print $8}'))
+
+{
+  echo "backup_last_start{archive=\"${ARCHIVE_PREFIX}\"} $LAST_START_TIMESTAMP"
+  echo "backup_last_end{archive=\"${ARCHIVE_PREFIX}\"} $LAST_END_TIMESTAMP"
+  echo "backup_last_size{archive=\"${ARCHIVE_PREFIX}\"} $LAST_SIZE"
+  echo "backup_last_size_compressed{archive=\"${ARCHIVE_PREFIX}\"} $LAST_SIZE_COMPRESSED"
+  echo "backup_last_size_dedup{archive=\"${ARCHIVE_PREFIX}\"} $LAST_SIZE_DEDUP"
+  echo "backup_total_size{archive=\"${ARCHIVE_PREFIX}\"} $TOTAL_SIZE"
+  echo "backup_total_size_compressed{archive=\"${ARCHIVE_PREFIX}\"} $TOTAL_SIZE_COMPRESSED"
+  echo "backup_total_size_dedup{archive=\"${ARCHIVE_PREFIX}\"} $TOTAL_SIZE_DEDUP"
+} >> "$TMP_FILE"
+
+mv "$TMP_FILE" "$PROM_FILE"

assets/entrypoint.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+set -eu
+
+echo "$CRON_SCHEDULE /usr/bin/borg-exporter.sh" >> /var/spool/cron/crontabs/$(whoami)
+
+crond -f