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#!/bin/sh
crsproxy_url=
crsproxy_cmds=
crsproxy_update_every=15
crsproxy_get() {
wget 2>/dev/null -O - "$crsproxy_url" |\
sed \
-e "s/ \+/ /g" \
-e "s/\./_/g" \
-e "s/ =/=/g" \
-e "s/= /=/g" \
-e "s/^/crsproxy_/g" |\
egrep "^crsproxy_[a-zA-Z][a-zA-Z0-9_]*=[0-9]+$"
}
crsproxy_check() {
# make sure we have all the commands we need
require_cmd wget || return 1
if [ -z "$crsproxy_url" ]
then
echo >&2 "$PROGRAM_NAME: crsproxy: not configured. Please set crsproxy_url='url' in $confd/crsproxy.conf"
return 1
fi
# check once if the url works
wget 2>/dev/null -O /dev/null "$crsproxy_url"
if [ ! $? -eq 0 ]
then
echo >&2 "$PROGRAM_NAME: crsproxy: cannot fetch the url: $crsproxy_url. Please set crsproxy_url='url' in $confd/crsproxy.conf"
return 1
fi
# if the user did not request specific commands
# find the commands available
if [ -z "$crsproxy_cmds" ]
then
crsproxy_cmds="$(crsproxy_get | cut -d '=' -f 1 | sed "s/^crsproxy_cmd_//g" | sort -u)"
fi
# if no commands are available
if [ -z "$crsproxy_cmds" ]
then
echo >&2 "$PROGRAM_NAME: crsproxy: cannot find command list automatically. Please set crsproxy_cmds='...' in $confd/crsproxy.conf"
return 1
fi
return 0
}
crsproxy_create() {
# create the charts
cat <<EOF
CHART crsproxy.connected '' "CRS Proxy Connected Clients" "clients" crsproxy '' line 20000 $crsproxy_update_every
DIMENSION web '' absolute 1 1
DIMENSION native '' absolute 1 1
DIMENSION virtual '' absolute 1 1
CHART crsproxy.requests '' "CRS Proxy Requests Rate" "requests / min" crsproxy '' area 20001 $crsproxy_update_every
DIMENSION web '' incremental 60 1
DIMENSION native '' incremental -60 1
CHART crsproxy.clients '' "CRS Proxy Clients Rate" "clients / min" crsproxy '' area 20010 $crsproxy_update_every
DIMENSION web '' incremental 60 1
DIMENSION native '' incremental -60 1
DIMENSION virtual '' incremental 60 1
CHART crsproxy.replies '' "CRS Replies Rate" "replies / min" crsproxy '' area 20020 $crsproxy_update_every
DIMENSION ok '' incremental 60 1
DIMENSION failed '' incremental -60 1
CHART crsproxy.bconnections '' "Back-End Connections Rate" "connections / min" crsproxy '' area 20030 $crsproxy_update_every
DIMENSION ok '' incremental 60 1
DIMENSION failed '' incremental -60 1
EOF
local x=
echo "CHART crsproxy.commands '' 'CRS Commands Requests' 'requests / min' crsproxy '' stacked 20100 $crsproxy_update_every"
for x in $crsproxy_cmds
do
echo "DIMENSION $x '' incremental 60 $crsproxy_update_every"
done
echo "CHART crsproxy.commands_failed '' 'CRS Failed Commands' 'replies / min' crsproxy '' stacked 20110 $crsproxy_update_every"
for x in $crsproxy_cmds
do
echo "DIMENSION $x '' incremental 60 $crsproxy_update_every"
done
return 0
}
crsproxy_update() {
# the first argument to this function is the microseconds since last update
# pass this parameter to the BEGIN statement (see bellow).
# do all the work to collect / calculate the values
# for each dimension
# remember: KEEP IT SIMPLE AND SHORT
# get the values from crsproxy
eval "$(crsproxy_get)"
# write the result of the work.
cat <<VALUESEOF
BEGIN crsproxy.connected $1
SET web = $((crsproxy_web_clients_opened - crsproxy_web_clients_closed))
SET native = $((crsproxy_crs_clients_opened - crsproxy_crs_clients_closed))
SET virtual = $((crsproxy_virtual_clients_opened - crsproxy_virtual_clients_closed))
END
BEGIN crsproxy.requests $1
SET web = $crsproxy_web_requests
SET native = $crsproxy_native_requests
END
BEGIN crsproxy.clients $1
SET web = $crsproxy_web_clients_opened
SET native = $crsproxy_crs_clients_opened
SET virtual = $crsproxy_virtual_clients_opened
END
BEGIN crsproxy.replies $1
SET ok = $crsproxy_replies_success
SET failed = $crsproxy_replies_error
END
BEGIN crsproxy.bconnections $1
SET ok = $crsproxy_connections_nonblocking_established
SET failed = $crsproxy_connections_nonblocking_failed
END
VALUESEOF
local native_requests="_native_requests"
local web_requests="_web_requests"
local replies_error="_replies_error"
local x=
echo "BEGIN crsproxy.commands $1"
for x in $crsproxy_cmds
do
eval "v=\$(( crsproxy_cmd_$x$native_requests + crsproxy_cmd_$x$web_requests ))"
echo "SET $x = $v"
done
echo "END"
echo "BEGIN crsproxy.commands_failed $1"
for x in $crsproxy_cmds
do
eval "v=\$crsproxy_cmd_$x$replies_error"
echo "SET $x = $v"
done
echo "END"
return 0
}
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