Best file naming. Improve code. Add makefile. Add metrics borg_extract_exit_code and bork_hours_from_last_backup. Update doc

This commit is contained in:
pivaldi 2018-09-05 17:00:25 +02:00
parent afa87e9dfb
commit ea36dc32bb
6 changed files with 105 additions and 69 deletions

10
Makefile Normal file
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@ -0,0 +1,10 @@
.PHONY: install
install:
cp borg_exporter.sh /usr/local/bin/ \
&& chmod +x /usr/local/bin/borg_exporter.sh \
&& cp borg_exporter.rc /etc/borg_exporter.rc \
&& cp prometheus-borg-exporter.timer /etc/systemd/system/ \
&& cp prometheus-borg-exporter.service /etc/systemd/system/ \
&& echo -n "Edit the config file /etc/borg_exporter.rc and press [ENTER] when finished "; read \
&& systemctl enable prometheus-borg-exporter.timer \
&& systemctl start prometheus-borg-exporter.timer

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@ -4,13 +4,20 @@ Export borg information to prometheus.
## Dependencies ## Dependencies
* [Dateutils](http://www.fresse.org/dateutils/)
* Prometheus (obviously) * Prometheus (obviously)
* Node Exporter with textfile collector * Node Exporter with textfile collector
* Borg (https://github.com/borgbackup/borg) * [Borg](https://github.com/borgbackup/borg)
## Install ## Install
Copy `borg_exporter` to `/usr/local/bin`. ### With the Makfile
For convenience, you can install this exporter with the command line
`make install` or follow the process described in the next paragraph.
### Manually
Copy `borg_exporter.sh` to `/usr/local/bin`.
Copy `borg.env` to `/etc/borg` and replace your repokey and repository in it. Copy `borg.env` to `/etc/borg` and replace your repokey and repository in it.
@ -27,12 +34,21 @@ Alternative: Use `ExecStartPost` in your borg backupt timer itself to write our
Make sure your node exporter uses `textfile` in `--collectors.enabled` and add the following parameter: `--collector.textfile.directory=/var/lib/node_exporter/textfile_collector` Make sure your node exporter uses `textfile` in `--collectors.enabled` and add the following parameter: `--collector.textfile.directory=/var/lib/node_exporter/textfile_collector`
## Example queries ## Exported metrics
``` ```
backup_total_size_dedup{job='node'} borg_extract_exit_code
backup_last_size_dedup{job='node'} bork_hours_from_last_backup
backup_chunks_total{job='node'} bork_count
bork_files
bork_chunks_unique
bork_chunks_total
bork_last_size
bork_last_size_compressed
bork_last_size_dedup
bork_total_size
bork_total_size_compressed
bork_total_size_dedup
``` ```
### Grafana dashboard ### Grafana dashboard

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@ -1,62 +0,0 @@
#!/bin/bash
set -eu
source /etc/borg
TEXTFILE_COLLECTOR_DIR=/var/lib/node_exporter/textfile_collector
PROM_FILE=$TEXTFILE_COLLECTOR_DIR/backup.prom
TMP_FILE=$PROM_FILE.$$
HOSTNAME=$(hostname)
LIST=$(BORG_PASSPHRASE=$BORG_PASSPHRASE borg list $REPOSITORY |awk '{print $1}')
COUNTER=0
mkdir -p $TEXTFILE_COLLECTOR_DIR
for i in $LIST; do
COUNTER=$((COUNTER+1))
done
BORG_INFO=$(BORG_PASSPHRASE=$BORG_PASSPHRASE borg info "$REPOSITORY::$i")
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

72
borg_exporter.sh Executable file
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@ -0,0 +1,72 @@
#!/bin/bash
set -eu
source /etc/borg_exporter.rc
TEXTFILE_COLLECTOR_DIR=/var/lib/node_exporter/textfile_collector
PROM_FILE=$TEXTFILE_COLLECTOR_DIR/bork.prom
TMP_FILE=$PROM_FILE.$$
[ -e $TMP_FILE ] && rm -f $TMP_FILE
HOSTNAME=$(hostname)
ARCHIVES="$(BORG_PASSPHRASE=$BORG_PASSPHRASE borg list $REPOSITORY)"
COUNTER=0
[ -e $TEXTFILE_COLLECTOR_DIR ] || mkdir -p $TEXTFILE_COLLECTOR_DIR
COUNTER=$(echo "$ARCHIVES" | wc -l)
LAST_ARCHIVE=$(BORG_PASSPHRASE=$BORG_PASSPHRASE borg list $REPOSITORY | sort -nr | head -n 1)
LAST_ARCHIVE_NAME=$(echo $LAST_ARCHIVE | awk '{print $1}')
LAST_ARCHIVE_DATE=$(echo $LAST_ARCHIVE | awk '{print $3" "$4}')
CURRENT_DATE="$(date '+%Y-%m-%d %H:%M:%S')"
NB_HOUR_FROM_LAST_BCK=$(dateutils.ddiff "$LAST_ARCHIVE_DATE" "$CURRENT_DATE" -f '%H')
BORG_EXTRACT_EXIT_CODE=$(BORG_PASSPHRASE="$BORG_PASSPHRASE" borg extract --dry-run "$REPOSITORY::$LAST_ARCHIVE_NAME" > /dev/null 2>&1; echo $?)
BORG_INFO=$(BORG_PASSPHRASE="$BORG_PASSPHRASE" borg info "$REPOSITORY::$LAST_ARCHIVE_NAME")
echo "borg_extract_exit_code{host=\"${HOSTNAME}\"} $BORG_EXTRACT_EXIT_CODE" >> $TMP_FILE
echo "bork_hours_from_last_backup{host=\"${HOSTNAME}\"} $NB_HOUR_FROM_LAST_BCK" >> $TMP_FILE
echo "bork_count{host=\"${HOSTNAME}\"} $COUNTER" >> $TMP_FILE
echo "bork_files{host=\"${HOSTNAME}\"} $(echo "$BORG_INFO" | grep "Number of files" | awk '{print $4}')" >> $TMP_FILE
echo "bork_chunks_unique{host=\"${HOSTNAME}\"} $(echo "$BORG_INFO" | grep "Chunk index" | awk '{print $3}')" >> $TMP_FILE
echo "bork_chunks_total{host=\"${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 $8}'))
echo "bork_last_size{host=\"${HOSTNAME}\"} $LAST_SIZE" >> $TMP_FILE
echo "bork_last_size_compressed{host=\"${HOSTNAME}\"} $LAST_SIZE_COMPRESSED" >> $TMP_FILE
echo "bork_last_size_dedup{host=\"${HOSTNAME}\"} $LAST_SIZE_DEDUP" >> $TMP_FILE
echo "bork_total_size{host=\"${HOSTNAME}\"} $TOTAL_SIZE" >> $TMP_FILE
echo "bork_total_size_compressed{host=\"${HOSTNAME}\"} $TOTAL_SIZE_COMPRESSED" >> $TMP_FILE
echo "bork_total_size_dedup{host=\"${HOSTNAME}\"} $TOTAL_SIZE_DEDUP" >> $TMP_FILE
mv $TMP_FILE $PROM_FILE

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@ -3,5 +3,5 @@ Description=Prometheus Borg Exporter
After=network-online.target After=network-online.target
[Service] [Service]
ExecStart=/usr/local/bin/borg_exporter ExecStart=/usr/local/bin/borg_exporter.sh
Type=oneshot Type=oneshot