riak -> librato stats cron job

riak_stats.sh

#!/bin/bash
# *  *    * * *   root    /path/to/riak_stats.sh

set -e

SOURCE=$(hostname)
LIBRATO_USERID=""
LIBRATO_TOKEN=""
PREFIX="test.riak"

STATUS=$(riak-admin status)

VARIABLES=("vnode_gets" "vnode_puts" "read_repairs" "node_gets" "node_puts" "cpu_nprocs" "sys_process_count" "pbc_connects" "pbc_active" \
  "node_get_fsm_time_mean" "node_get_fsm_time_median" "node_get_fsm_time_95" "node_get_fsm_time_99" "node_get_fsm_time_100" \
  "node_put_fsm_time_mean" "node_put_fsm_time_median" "node_put_fsm_time_95" "node_put_fsm_time_99" "node_put_fsm_time_100")

IDX=0

PARAMS=()

for STAT in ${VARIABLES[@]}; do
  RE_PREFIX=$'(\n|^)'
  RE_SUFFIX=$' : ([^\n]*)'

  RE="$RE_PREFIX$STAT$RE_SUFFIX"

  if [[ "$STATUS" =~ $RE ]]; then
    VALUE=${BASH_REMATCH[2]}
    PARAMS+=("-d" "gauges[$IDX][name]=$PREFIX.$STAT")
    PARAMS+=("-d" "gauges[$IDX][value]=$VALUE")
    PARAMS+=("-d" "gauges[$IDX][source]=$SOURCE")
    IDX=$(($IDX + 1))
  fi
done

curl -v --max-time 15 \
  -u ${LIBRATO_USERID}:${LIBRATO_TOKEN} \
  ${PARAMS[@]} \
  -X POST https://metrics-api.librato.com/v1/metrics