#!/bin/bash
TIMESTAMP=$(date +"%Y.%m.%d-%H.%M.%S")
BACKUP_DIR="/mnt/nas/autobackups/grafana"
HOST="http://localhost:3000"
# backup grafana data sources
PASSWD="<==eigenes Kennwort==>"
if [ ! -d $BACKUP_DIR/datasources ] ; then
    mkdir -p $BACKUP_DIR/datasources
fi
curl -s "$HOST/api/datasources" -u admin:$PASSWD | jq -c -M '.[]'|split -l 1 - $BACKUP_DIR/datasources/
# backup grafana dashboards Generate API-Key with Grafana -> Configurtion -> API Keys

# Api-Key for BackupGrafanaAdmin:
KEY="<========= der eigene Grafana-API-Key ================>"
if [ ! -d $BACKUP_DIR/dashboards ] ; then
    mkdir -p $BACKUP_DIR/dashboards
fi
for dash in $(curl -k -H "Authorization: Bearer $KEY" $HOST/api/search\?query\=\& | jq -r '.[] | .uid'); do
  curl -k -H "Authorization: Bearer $KEY" $HOST/api/dashboards/uid/$dash | sed 's/"id":[0-9]\+,/"id":null,/' | sed 's/\(.*\)}/\1,"overwrite": true}/' | jq . > $BACKUP_DIR/dashboards/$(echo ${dash} |cut -d\" -f 4 |cut -d\/ -f2).json
done
# create tar archive with timestamp
tar cvfz $BACKUP_DIR/backup.grafana-$TIMESTAMP.tgz $BACKUP_DIR/da*
# clean up old backups if you want
# rm -r $BACKUP_DIR/da*