# no need for shebang - this file is loaded from charts.d.plugin # the URL to download apache status info apache_url="http://127.0.0.1:80/server-status?auto" apache_curl_opts= # _update_every is a special variable - it holds the number of seconds # between the calls of the _update() function apache_update_every= apache_priority=60000 # convert apache floating point values # to integer using this multiplier # this only affects precision - the values # will be in the proper units apache_decimal_detail=1000000 declare -a apache_response=() apache_accesses=0 apache_kbytes=0 apache_reqpersec=0 apache_bytespersec=0 apache_bytesperreq=0 apache_busyworkers=0 apache_idleworkers=0 apache_connstotal=0 apache_connsasyncwriting=0 apache_connsasynckeepalive=0 apache_connsasyncclosing=0 apache_keys_detected=0 apache_has_conns=0 apache_key_accesses= apache_key_kbytes= apache_key_reqpersec= apache_key_bytespersec= apache_key_bytesperreq= apache_key_busyworkers= apache_key_idleworkers= apache_key_scoreboard= apache_key_connstotal= apache_key_connsasyncwriting= apache_key_connsasynckeepalive= apache_key_connsasyncclosing= apache_detect() { local i=0 for x in "${@}" do case "${x}" in 'Total Accesses') apache_key_accesses=$((i + 1)) ;; 'Total kBytes') apache_key_kbytes=$((i + 1)) ;; 'ReqPerSec') apache_key_reqpersec=$((i + 1)) ;; 'BytesPerSec') apache_key_bytespersec=$((i + 1)) ;; 'BytesPerReq') apache_key_bytesperreq=$((i + 1)) ;; 'BusyWorkers') apache_key_busyworkers=$((i + 1)) ;; 'IdleWorkers') apache_key_idleworkers=$((i + 1));; 'ConnsTotal') apache_key_connstotal=$((i + 1)) ;; 'ConnsAsyncWriting') apache_key_connsasyncwriting=$((i + 1)) ;; 'ConnsAsyncKeepAlive') apache_key_connsasynckeepalive=$((i + 1)) ;; 'ConnsAsyncClosing') apache_key_connsasyncclosing=$((i + 1)) ;; 'Scoreboard') apache_key_scoreboard=$((i)) ;; esac i=$((i + 1)) done # we will not check of the Conns* # keys, since these are apache 2.4 specific [ -z "${apache_key_accesses}" ] && echo >&2 "apache: missing 'Total Accesses' from apache server: ${*}" && return 1 [ -z "${apache_key_kbytes}" ] && echo >&2 "apache: missing 'Total kBytes' from apache server: ${*}" && return 1 [ -z "${apache_key_reqpersec}" ] && echo >&2 "apache: missing 'ReqPerSec' from apache server: ${*}" && return 1 [ -z "${apache_key_bytespersec}" ] && echo >&2 "apache: missing 'BytesPerSec' from apache server: ${*}" && return 1 [ -z "${apache_key_bytesperreq}" ] && echo >&2 "apache: missing 'BytesPerReq' from apache server: ${*}" && return 1 [ -z "${apache_key_busyworkers}" ] && echo >&2 "apache: missing 'BusyWorkers' from apache server: ${*}" && return 1 [ -z "${apache_key_idleworkers}" ] && echo >&2 "apache: missing 'IdleWorkers' from apache server: ${*}" && return 1 [ -z "${apache_key_scoreboard}" ] && echo >&2 "apache: missing 'Scoreboard' from apache server: ${*}" && return 1 if [ ! -z "${apache_key_connstotal}" \ -a ! -z "${apache_key_connsasyncwriting}" \ -a ! -z "${apache_key_connsasynckeepalive}" \ -a ! -z "${apache_key_connsasyncclosing}" \ ] then apache_has_conns=1 else apache_has_conns=0 fi return 0 } apache_get() { local oIFS="${IFS}" ret IFS=$':\n' apache_response=($(curl -Ss ${apache_curl_opts} "${apache_url}")) ret=$? IFS="${oIFS}" [ $ret -ne 0 -o "${#apache_response[@]}" -eq 0 ] && return 1 # the last line on the apache output is "Scoreboard" # we use this label to detect that the output has a new word count if [ ${apache_keys_detected} -eq 0 -o "${apache_response[${apache_key_scoreboard}]}" != "Scoreboard" ] then apache_detect "${apache_response[@]}" || return 1 apache_keys_detected=1 fi apache_accesses="${apache_response[${apache_key_accesses}]}" apache_kbytes="${apache_response[${apache_key_kbytes}]}" float2int "${apache_response[${apache_key_reqpersec}]}" ${apache_decimal_detail} apache_reqpersec=${FLOAT2INT_RESULT} float2int "${apache_response[${apache_key_bytespersec}]}" ${apache_decimal_detail} apache_bytespersec=${FLOAT2INT_RESULT} float2int "${apache_response[${apache_key_bytesperreq}]}" ${apache_decimal_detail} apache_bytesperreq=${FLOAT2INT_RESULT} apache_busyworkers="${apache_response[${apache_key_busyworkers}]}" apache_idleworkers="${apache_response[${apache_key_idleworkers}]}" if [ -z "${apache_accesses}" \ -o -z "${apache_kbytes}" \ -o -z "${apache_reqpersec}" \ -o -z "${apache_bytespersec}" \ -o -z "${apache_bytesperreq}" \ -o -z "${apache_busyworkers}" \ -o -z "${apache_idleworkers}" \ ] then echo >&2 "apache: empty values got from apache server: ${apache_response[*]}" return 1 fi if [ ${apache_has_conns} -eq 1 ] then apache_connstotal="${apache_response[${apache_key_connstotal}]}" apache_connsasyncwriting="${apache_response[${apache_key_connsasyncwriting}]}" apache_connsasynckeepalive="${apache_response[${apache_key_connsasynckeepalive}]}" apache_connsasyncclosing="${apache_response[${apache_key_connsasyncclosing}]}" fi return 0 } # _check is called once, to find out if this chart should be enabled or not apache_check() { apache_get if [ $? -ne 0 ] then echo >&2 "apache: cannot find stub_status on URL '${apache_url}'. Please set apache_url='http://apache.server:80/server-status?auto' in $confd/apache.conf" return 1 fi # this should return: # - 0 to enable the chart # - 1 to disable the chart return 0 } # _create is called once, to create the charts apache_create() { cat <