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must-gather-log_merger.sh
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must-gather-log_merger.sh
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#!/bin/bash
################################################################################
# Must-gather log merger #
# #
# Script to merge logs from ETCD, apiserver, haproxy and routers #
# #
# #
################################################################################
################################################################################
################################################################################
# #
# Copyright (C) 2022 Peter Ducai #
# #
# 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 2 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, write to the Free Software #
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #
# #
################################################################################
################################################################################
################################################################################
STAMP=$(date +%Y-%m-%d_%H-%M-%S)
ETCD_NS="openshift-etcd"
MUST_PATH=""
ORIG_PATH=$(pwd)
OUTPUT_PATH=$ORIG_PATH/DATA
rm -rf $OUTPUT_PATH
mkdir -p $OUTPUT_PATH
print_help() {
echo -e ""
echo -e "Must-gather log merger 0.1"
echo -e ""
echo -e "WARNING: final output is simplified and you should check specific logs for exact error message and values."
echo -e "For example:"
echo -e "OVERLOADED = leader failed to send out heartbeat on time; took too long, leader is overloaded likely from slow disk"
echo -e ""
echo -e "Start at $STAMP"
echo -e ""
echo -e "SUMMARY: Script to merge logs from ETCD, apiserver, haproxy and routers"
echo -e ""
echo -e "HELP:"
# echo -e "-f | --force : to actually delete ReplicaSets not in use. (Not implemented)"
# echo -e "-g | --graph : graph referenced images. (Not implemented)"
echo -e "-m | --mustgatherpath : path to must-gather folder."
echo -e "-t | --timeline : print only specific timeline. Format can be YYYY-MM-DD or even YYYY-MM-DDTH (like 2022-10-13T02 for 02:00)."
echo -e ""
}
# PARSER --------------------------------------------------------------------------
PARAMS=""
while (( "$#" )); do
case "$1" in
-a|--my-boolean-flag)
MY_FLAG=0
shift
;;
-t|--timeline)
if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
TIMELINE=$2
shift 2
else
echo "Error: Argument for $1 is missing" >&2
exit 1
fi
;;
-m|--mustgatherpath)
if [ -n "$2" ] && [ ${2:0:1} != "-" ]; then
MUST_PATH=$2
shift 2
else
echo "Error: Argument for $1 is missing" >&2
exit 1
fi
;;
-*|--*=) # unsupported flags
echo "Error: Unsupported flag $1" >&2
exit 1
;;
*) # preserve positional arguments
PARAMS="$PARAMS $1"
shift
;;
esac
done
# set positional arguments in their proper place
eval set -- "$PARAMS"
print_help
# MAIN
cd $MUST_PATH
cd $(echo */)
FULL_PATH=$(pwd)
etcd_check() {
echo -e ""
echo -e "[ETCD check]"
echo -e ""
[ -d "$FULL_PATH/namespaces/$ETCD_NS/pods" ] && echo "found directory" || return
cd $FULL_PATH/namespaces/$ETCD_NS/pods
i=0
for member in $(ls |grep -v "revision"|grep -v "quorum"); do
echo "processing $member"
echo -e "" > $OUTPUT_PATH/$member.log
cat $member/etcd/etcd/logs/current.log |grep 'likely'|cut -d ' ' -f1| \
xargs -I {} echo -e "{} failed to send out heartbeat on time; took too long, leader is overloaded likely from slow disk [$member] !!!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$member.log; done
# cat $member/etcd/etcd/logs/current.log |grep 'took too long'|cut -d ' ' -f1| \
# xargs -I {} echo -e "{} took too long [$member]" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$member.log; done
cat $member/etcd/etcd/logs/current.log |grep 'leader changed'|cut -d ' ' -f1| \
xargs -I {} echo -e "{} took too long due to changed leader [$member] !" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$member.log; done
cat $member/etcd/etcd/logs/current.log |grep 'elected leader'|cut -d ' ' -f1| \
xargs -I {} echo -e "{} LEADER changed [$member] !!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$member.log; done
cat $member/etcd/etcd/logs/current.log |grep 'clock'|cut -d ' ' -f1| \
xargs -I {} echo -e "{} NTP clock difference [$member] !!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$member.log; done
cat $member/etcd/etcd/logs/current.log |grep 'buffer'|cut -d ' ' -f1| \
xargs -I {} echo -e "{} dropped internal Raft message since sending buffer is full (overloaded network) [$member] !!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$member.log; done
#increment color
i=$((${i}+1))
done
i=0
cat $OUTPUT_PATH/etcd*.log > $OUTPUT_PATH/output_etcd_logs.log
sort -t: -k2 -k3 $OUTPUT_PATH/output_etcd_logs.log > $OUTPUT_PATH/sorted.tmp
cat $OUTPUT_PATH/sorted.tmp > $OUTPUT_PATH/output_etcd_logs.log
}
router_check() {
echo -e ""
echo -e "[ROUTER openshift-ingress check]"
echo -e ""
[ -d "$FULL_PATH/namespaces/openshift-ingress/pods" ] && echo "found directory" || return
i=0
cd $FULL_PATH/namespaces/openshift-ingress/pods
for router in $(ls); do
echo "processing $router"
echo -e "" > $OUTPUT_PATH/$router.log
cat $router/router/router/logs/current.log |grep 'Unexpected watch close'|cut -d ' ' -f1| \
xargs -I {} echo -e "{} Unexpected watch close [$router] !!!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$router.log; done
cat $router/router/router/logs/current.log |grep 'error on the server'|cut -d ' ' -f1| \
xargs -I {} echo -e "{} error on the server [$router]" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$router.log; done
# cat $router/router/router/logs/current.log |grep 'process'|cut -d ' ' -f1| \
# xargs -I {} echo -e "{} LEADER changed [$router] !" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$router.log; done
# cat $router/router/router/logs/current.log |grep 'clock'|cut -d ' ' -f1| \
# xargs -I {} echo -e "{} NTP clock difference [$router] !!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$router.log; done
# cat $router/router/router/logs/current.log |grep 'buffer'|cut -d ' ' -f1| \
# xargs -I {} echo -e "{} BUFF [$router] !!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$router.log; done
#increment color
i=$((${i}+1))
done
i=0
cat $OUTPUT_PATH/router*.log > $OUTPUT_PATH/output_router_logs.log
sort -t: -k2 -k3 $OUTPUT_PATH/output_router_logs.log > $OUTPUT_PATH/sorted.tmp
cat $OUTPUT_PATH/sorted.tmp > $OUTPUT_PATH/output_router_logs.log
}
stackinfra_check() {
echo -e ""
echo -e "[KEEPALIVED openstack-infra check]"
echo -e ""
i=0
[ -d "$FULL_PATH/namespaces/openshift-openstack-infra/pods" ] && echo "found directory" || return
cd $FULL_PATH/namespaces/openshift-openstack-infra/pods
for keepalived in $(ls |grep master|grep -v "coredns"|grep -v "haproxy"); do
echo "processing $keepalived"
echo -e "" > $OUTPUT_PATH/$keepalived.log
cat $keepalived/keepalived/keepalived/logs/current.log |grep 'Entering'| \
xargs -I {} echo -e "{} [$keepalived] !!!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$keepalived.log; done
#increment color
i=$((${i}+1))
done
i=0
cat $OUTPUT_PATH/keepalived*.log > $OUTPUT_PATH/output_keepalived_logs.log
sort -t: -k2 -k3 $OUTPUT_PATH/output_keepalived_logs.log > $OUTPUT_PATH/sorted.tmp
cat $OUTPUT_PATH/sorted.tmp > $OUTPUT_PATH/output_keepalived_logs.log
}
kube-apiserver_check() {
echo -e ""
echo -e "[KUBE-APISERVER check]"
echo -e ""
[ -d "$FULL_PATH/namespaces/openshift-kube-apiserver/pods" ] && echo "found directory" || return
i=0
cd $FULL_PATH/namespaces/openshift-kube-apiserver/pods
for kubeapiserver in $(ls |grep -v "installer"|grep -v "pruner"|grep -v "guard"|grep apiserver); do
echo "processing $kubeapiserver"
echo -e "" > $OUTPUT_PATH/$kubeapiserver.log
cat $kubeapiserver/kube-apiserver/kube-apiserver/logs/current.log |grep -i 'error'| \
xargs -I {} echo -e "{} [$kubeapiserver] !!!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$kubeapiserver.log; done
#increment color
i=$((${i}+1))
done
i=0
cat $OUTPUT_PATH/kube-apiserver*.log > $OUTPUT_PATH/output_kube-apiserver_logs.log
sort -t: -k2 -k3 $OUTPUT_PATH/output_kube-apiserver_logs.log > $OUTPUT_PATH/sorted.tmp
cat $OUTPUT_PATH/sorted.tmp > $OUTPUT_PATH/output_kube-apiserver_logs.log
}
haproxy_check() {
echo -e ""
echo -e "[HAPROXY check]"
echo -e ""
[ -d "$FULL_PATH/namespaces/openshift-openstack-infra/pods" ] && echo "found directory" || return
i=0
cd $FULL_PATH/namespaces/openshift-openstack-infra/pods
for haproxy in $(ls |grep haproxy|grep -v "coredns"|grep -v "kube-apiserver"); do
echo "processing $haproxy"
echo -e "" > $OUTPUT_PATH/$haproxy.log
cat $haproxy/haproxy/haproxy/logs/current.log |grep -i 'error'| \
xargs -I {} echo -e "{} [$haproxy] !!!" | while read -r line; do echo -e "$line" >> $OUTPUT_PATH/$haproxy.log; done
#increment color
i=$((${i}+1))
done
i=0
cat $OUTPUT_PATH/kube-apiserver*.log > $OUTPUT_PATH/output_haproxy_logs.log
sort -t: -k2 -k3 $OUTPUT_PATH/output_haproxy_logs.log > $OUTPUT_PATH/sorted.tmp
cat $OUTPUT_PATH/sorted.tmp > $OUTPUT_PATH/output_haproxy_logs.log
}
etcd_check
router_check
stackinfra_check
haproxy_check
kube-apiserver_check
#clear
echo -e ""
echo -e "[PROCESSING]"
echo -e ""
cd $OUTPUT_PATH
#$OUTPUT_PATH/output_kube-apiserver_logs.log
cat $OUTPUT_PATH/output_keepalived_logs.log $OUTPUT_PATH/output_router_logs.log $OUTPUT_PATH/output_etcd_logs.log $OUTPUT_PATH/output_haproxy_logs.log > $OUTPUT_PATH/output_logs-$STAMP.log
sort -tT -k2 -k3 $OUTPUT_PATH/output_logs-$STAMP.log > $OUTPUT_PATH/sort.txt
sort -s -t- -k2 -k3 $OUTPUT_PATH/sort.txt > $OUTPUT_PATH/output_logs-$STAMP.log
#cat $OUTPUT_PATH/output_logs-$STAMP.log |grep "$TIMELINE"
echo -e "Combined output was saved in $OUTPUT_PATH/output_logs-$STAMP.log"