Send backup status via exporter to Prometheus

This commit is contained in:
phil 2023-12-02 09:18:19 +01:00
parent 2a6b2273a2
commit be1cf37ca3
6 changed files with 137 additions and 0 deletions

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[Unit]
Description=Prometheus Borg Exporter
After=network-online.target
[Service]
ExecStart=/usr/local/bin/borg_exporter
Type=oneshot

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[Unit]
Description=Prometheus Borg Exporter Timer
[Timer]
OnCalendar=*:0/30
[Install]
WantedBy=timers.target

14
handlers/main.yml Normal file
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---
- name: Restart exporter service
ansible.builtin.systemd:
name: prometheus-borg-exporter.service
daemon_reload: true
state: restarted
enabled: true
- name: Restart exporter timer
ansible.builtin.systemd:
name: prometheus-borg-exporter.timer
daemon_reload: true
state: restarted
enabled: true

20
tasks/exporter.yml Normal file
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---
- name: "Exporter | Copy borg_exporter"
ansible.builtin.template:
src: borg_exporter.j2
dest: /usr/local/bin/borg_exporter
mode: "0755"
- name: "Exporter | Copy systemd unit"
ansible.builtin.copy:
src: prometheus-borg-exporter.service
dest: /etc/systemd/system/prometheus-borg-exporter.service
mode: "0644"
notify: Restart exporter service
- name: "Exporter | Copy systemd timer"
ansible.builtin.copy:
src: prometheus-borg-exporter.timer
dest: /etc/systemd/system/prometheus-borg-exporter.timer
mode: "0644"
notify: Restart exporter timer

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@ -20,3 +20,13 @@
- name: Setup borg
ansible.builtin.import_tasks: borg.yml
tags: borg
- name: Get installed packages
ansible.builtin.package_facts:
manager: apt
tags: exporter
- name: Setup Prometheus exporter
ansible.builtin.import_tasks: exporter.yml
tags: exporter
when: "'prometheus-node-exporter' in ansible_facts.packages"

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#!/bin/bash
{{ ansible_managed | comment }}
set -eu
LOGFILE=/var/log/borg
TEXTFILE_COLLECTOR_DIR=/var/lib/node_exporter
PROM_FILE=$TEXTFILE_COLLECTOR_DIR/backup.prom
TMP_FILE=$PROM_FILE.$$
HOSTNAME=$(hostname)
COUNTER=0
mkdir -p $TEXTFILE_COLLECTOR_DIR
IFS=$'\n'
#for i in $LIST; do
# COUNTER=$((COUNTER+1))
#done
if [ -f "$LOGFILE" ] && [ ! $(find "$LOGFILE" -mtime +2 -print) ] ; then
RESULT_B=$(cat $LOGFILE | grep "terminating" | awk '{print $3}' | head -1 )
if [ "$RESULT_B" == 'success' ]; then RESULT_BACKUP=0; elif [ "$RESULT_B" == 'warning' ]; then RESULT_BACKUP=1; elif [ "$RESULT_B" == 'error' ]; then RESULT_BACKUP=2; else RESULT_BACKUP=3; fi
RESULT_P=$(cat $LOGFILE | grep "terminating" | awk '{print $3}' | tail -1)
if [ "$RESULT_P" == 'success' ]; then RESULT_PRUNE=0; elif [ "$RESULT_P" == 'warning' ]; then RESULT_PRUNE=1; elif [ "$RESULT_P" == 'error' ]; then RESULT_PRUNE=2; else RESULT_PRUNE=3; fi
else
RESULT_BACKUP=3
RESULT_PRUNE=3
fi
echo "backup_result{host=\"${HOSTNAME}\"} $RESULT_BACKUP"
echo "prune_result{host=\"${HOSTNAME}\"} $RESULT_PRUNE"
echo "backup_result{host=\"${HOSTNAME}\"} $RESULT_BACKUP" >> $TMP_FILE
echo "prune_result{host=\"${HOSTNAME}\"} $RESULT_PRUNE" >> $TMP_FILE
BORG_INFO=$(borgmatic info --last 1 ) || mv $TMP_FILE $PROM_FILE
#echo "backup_count{host=\"${HOSTNAME}\"} $COUNTER" > $TMP_FILE
echo "backup_files{host=\"${HOSTNAME}\"} $(echo "$BORG_INFO" | grep "Number of files" | awk '{print $4}')" >> $TMP_FILE
echo "backup_chunks_unique{host=\"${HOSTNAME}\"} $(echo "$BORG_INFO" | grep "Chunk index" | awk '{print $3}')" >> $TMP_FILE
echo "backup_chunks_total{host=\"${HOSTNAME}\"} $(echo "$BORG_INFO" | grep "Chunk index" | awk '{print $4}')" >> $TMP_FILE
function calc_bytes {
NUM=$1
UNIT=$2
case "$UNIT" in
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 $1 * 1024 * 1024 * 1024 * 1024 }'
;;
esac
}
# byte size
LAST_SIZE=$(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 $8}'))
echo "backup_last_size{host=\"${HOSTNAME}\"} $LAST_SIZE" >> $TMP_FILE
echo "backup_last_size_compressed{host=\"${HOSTNAME}\"} $LAST_SIZE_COMPRESSED" >> $TMP_FILE
echo "backup_last_size_dedup{host=\"${HOSTNAME}\"} $LAST_SIZE_DEDUP" >> $TMP_FILE
echo "backup_total_size{host=\"${HOSTNAME}\"} $TOTAL_SIZE" >> $TMP_FILE
echo "backup_total_size_compressed{host=\"${HOSTNAME}\"} $TOTAL_SIZE_COMPRESSED" >> $TMP_FILE
echo "backup_total_size_dedup{host=\"${HOSTNAME}\"} $TOTAL_SIZE_DEDUP" >> $TMP_FILE
mv $TMP_FILE $PROM_FILE