check_ceph_io

#!/bin/bash
# ======================================================================
#
# Icinga/ Nagios Check
# CEPH IO (from "ceph status")
#
# ----------------------------------------------------------------------
#
# REQUIREMENTS:
#   - ceph and sudo permissions on it
#
# SYNTAX:
#   - check_ceph_io
#     No parameter required
#
# ----------------------------------------------------------------------
# 2023-05-09  v1.0  <axel.hahn@unibe.ch>
# ======================================================================

. $(dirname $0)/inc_pluginfunctions

self_APPNAME=$( basename $0 | tr [:lower:] [:upper:] )
self_APPVERSION=1.0

function showHelp(){
cat <<EOF
______________________________________________________________________

$self_APPNAME 
v$self_APPVERSION

(c) Institute for Medical Education - University of Bern
Licence: GNU GPL 3
______________________________________________________________________

Show cheph IO as read and written bytes per second.
This check sends performance data.

SYNTAX:
$(basename $0)

OPTIONS:
    -h or --help   show this help.

EOF
}

# --- check param -h
case "$1" in
    "--help"|"-h")
        showHelp
        exit 0
        ;;
    *)
esac

# --- check required tools
ph.require ceph

CEPHIO=$( sudo ceph status 2>/dev/null | grep "client:.* rd,.* wr," | cut -f 2 -d ":" )
# CEPHIO="8.9 KiB/s rd, 887 KiB/s wr, 138 op/s rd, 140 op/s wr"

if [ -z "${CEPHIO}" ]; then
        ph.setStatus "unknown"
        ph.status "no data"
        echo "There is no output from 'sudo ceph status'."
        echo "No ceph here or no sudo permissions on ceph command?"
else

        IO_READ=$(  echo ${CEPHIO} | cut -f 1,2 -d " " | sed -E "s#([0-9]*) (.).(.).*#\1\2\3#g")
        IO_WRITE=$( echo ${CEPHIO} | cut -f 4,5 -d " " | sed -E "s#([0-9]*) (.).(.).*#\1\2\3#g")
        ph.status "$CEPHIO"

        # echo "read: $IO_READ"
        # echo "write: $IO_WRITE"

        ph.perfadd "cephio-read"   "$IO_READ"    "" ""
        ph.perfadd "cephio-write"  "$IO_WRITE"   "" ""

fi

ph.exit