sol-health.sh

#!/bin/bash
#USAGE
#pass variables to script
#       IURL - influx server address
#       ICRED - influx connection string query
#       IHOST - host to be sent
#
#start it as a service or in background, eg:
#IURL="http://192.168.0.1:8086" ICRED="db=dbname&u=influxuser&p=influxpass" IHOST="host-for-grafana" nohup sh -c "$(curl -sSfL https://gist.github.com/maricalucian/5b643f7c5b7c92546dbfc129ff545ae4/raw/)" &
#

sleep=3

if [ "$ICRED" = "" ] || [ "$IURL" = "" ] || [ "$IHOST" = "" ]; then
        cat << EOF
Variables needed:
        IURL - influx server url
        ICRED - influx connection info in query string format (db=database&u=user&p=pass)
        IHOST - host to be passed along the metrics
EOF
        exit 1
fi

while true;
do
        result=$(curl http://localhost:8899 -X POST -H "Content-Type: application/json" -s -d '{"jsonrpc":"2.0","id":1, "method":"getHealth"}')
        res=$?

        if [ "$res" = "0" ]; then
                blocks=$(printf "$result" | jq 'if .result == "ok" then 0 elif .error.data.numSlotsBehind? then .error.data.numSlotsBehind else 999 end')
        else
                blocks="999"
        fi

        data="slots_behind,host=$IHOST value=$blocks $(date +%s)"
        echo $data

        curl -X POST "$IURL/write?$ICRED&precision=s" --data-binary "$data"

        sleep $(($sleep))
done