Add telegraf scripts to track eps and failures for beats

salt/telegraf/scripts/beatseps.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Copyright 2014,2015,2016,2017,2018,2019,2020,2021 Security Onion Solutions, LLC
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+APP=beatseps
+lf=/tmp/$APP-pidLockFile
+# create empty lock file if none exists
+cat /dev/null >> $lf
+read lastPID < $lf
+# if lastPID is not null and a process with that pid exists , exit
+[ ! -z "$lastPID" -a -d /proc/$lastPID ] && exit
+echo $$ > $lf
+
+PREVCOUNTFILE='/tmp/beatseps.txt'
+EVENTCOUNTCURRENT="$(curl -s localhost:5066/stats | jq '.libbeat.output.events.acked')"
+FAILEDEVENTCOUNT="$(curl -s localhost:5066/stats | jq '.libbeat.output.events.failed')"
+
+if [ ! -z "$EVENTCOUNTCURRENT" ]; then
+
+  if [ -f "$PREVCOUNTFILE" ]; then
+    EVENTCOUNTPREVIOUS=`cat $PREVCOUNTFILE`
+  else
+    echo "${EVENTCOUNTCURRENT}" > $PREVCOUNTFILE
+    exit 0
+  fi
+
+  echo "${EVENTCOUNTCURRENT}" > $PREVCOUNTFILE
+  # the division by 30 is because the agent interval is 30 seconds
+  EVENTS=$(((EVENTCOUNTCURRENT - EVENTCOUNTPREVIOUS)/30))
+  if [ "$EVENTS" -lt 0 ]; then
+    EVENTS=0
+  fi
+
+  echo "fbstats eps=${EVENTS%%.*},failed=$FAILEDEVENTCOUNT"
+
+fi
+
+exit 0