InfluxDB backup handler for Backupninja

40.influxdb

##
## Configuration file for InfluxDB backups
## For installation, copy this file to /etc/backup.d/40.influxdb
##
## The snapshots are made with InfluxDB's backup mechanisms.
## See also:
## https://docs.influxdata.com/influxdb/v0.9/administration/backup_and_restore/
## 
## Please stop your influxd instance before restoring backups.
##
## Test this plugin by::
##
##     backupninja --debug --test --now --run /etc/backup.d/40.influxdb
##

## backupdir (default /var/backups/influxdb): the destination for the backups
# backupdir = /var/backups/influxdb

## list the database names, the default is to backup all databases
# databases = 

influxdb

# -*- mode: sh; sh-basic-offset: 3; indent-tabs-mode: nil; -*-
# vim: set filetype=sh sw=3 sts=3 expandtab autoindent:
#
# InfluxDB backup handler script for backupninja
# For installation, copy this file to /usr/share/backupninja/influxdb
#
# 2016-01-27 Andreas Motl <andreas.motl@elmyra.de>
#
getconf backupdir /var/backups/influxdb
getconf databases "$(influx --execute 'show databases;' -format 'csv' | awk -F, '{ print $2 }' | tail -n +2)"
getconf method snapshot

status="ok"

[ -d $backupdir ] || mkdir -p $backupdir
[ -d $backupdir ] || fatal "Backup directory '$backupdir'"

snapshotdir="$backupdir/snapshots"
[ -d $snapshotdir ] || mkdir -p $snapshotdir

names=(${databases})
info "Backing up ${#names[@]} InfluxDB databases\n${databases}"

for database in $databases; do

      execstr="influxd backup -database '${database}' '$snapshotdir/${database}'"

      if [ $test ]; then

         info "Pretending to backup InfluxDB database '${database}'"
         debug "$execstr"

      else

         debug "$execstr"
         output=`su root -c "set -o pipefail ; $execstr" 2>&1`
         code=$?
         if [ "$code" == "0" ]; then
            debug $output
            info "Successfully finished InfluxDB backup of $database"
         else
            warning $output
            warning "Failed InfluxDB backup of $database"
         fi

      fi
done

return 0