collect-swapstat.sh

#!/bin/sh

# Copyright 2015-2019 Rivoreo

# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:

# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
# FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

PROGRAM_DIR="`dirname \"$0\"`"
. "$PROGRAM_DIR/utils.sh"
load_config_file "$PROGRAM_DIR/performance-monitor.cfg"
load_config_file /etc/performance-monitor.cfg
handle_command_line_options "$@"
if [ -z "$INFLUXDB_BASE_URL" ] || [ -z "$INFLUXDB_DB_NAME" ]; then
	echo "INFLUXDB_BASE_URL and INFLUXDB_DB_NAME must be set" 1>&2
	exit 1
fi
if ! printf %s "$INFLUXDB_BASE_URL" | grep -q -e "^http://" -e "^https://"; then
	echo "INFLUXDB_BASE_URL doesn't contain a supported protocol" 1>&2
	exit 1
fi
[ -n "${INFLUXDB_BASE_URL##*/}" ] && INFLUXDB_BASE_URL="$INFLUXDB_BASE_URL/"
[ -z "$HTTP_CLIENT" ] && check_http_client
[ -z "$INTERVAL" ] && INTERVAL=5
[ -n "$INTERFACE" ] && set_hostname_from_interface "$INTERFACE"
[ -z "$HOSTNAME" ] && HOSTNAME="`hostname`"

export LC_TIME=C
sar -S "$INTERVAL" | sed -ur -e "/^[0-9]{2}:[0-9]{2}:[0-9]{2}/!d" -e "s/[0-9]{2}:[0-9]{2}:[0-9]{2}.{4}//" | while read -r line; do
	set -- $line
	if [ $# != 5 ]; then
		echo "data error: # $# != 5" 1>&2
		continue
	fi
	[ "$1" = kbswpfree ] && continue
	http_post "${INFLUXDB_BASE_URL}write?db=$INFLUXDB_DB_NAME" \
		"swapstat,host=$HOSTNAME kbswpfree=$1,kbswpused=$2,swpused_p=$3,kbswpcad=$4,swpcad_p=$5"
done