使用ELK(Elasticsearch + Logstash + Kibana) 搭建日志集中分析平台实践
前言
Elasticsearch + Logstash + Kibana（ELK）是一套开源的日志管理方案，分析网站的访问情况时我们一般会借助Google/百度/CNZZ等方式嵌入JS做数据统计，但是当网站访问异常或者被攻击时我们需要在后台分析如Nginx的具体日志，而Nginx日志分割/GoAccess/Awstats都是相对简单的单节点解决方案，针对分布式集群或者数据量级较大时会显得心有余而力不足，而ELK的出现可以使我们从容面对新的挑战。
Logstash：负责日志的收集，处理和储存
Elasticsearch：负责日志检索和分析
Kibana：负责日志的可视化
ELK(Elasticsearch + Logstash + Kibana)
更新记录
2015年08月31日 - 初稿
阅读原文 - http://wsgzao.github.io/post/elk/
扩展阅读
CentOS 7.x安装ELK(Elasticsearch+Logstash+Kibana) - http://www.chenshake.com/centos-install-7-x-elk-elasticsearchlogstashkibana/
Centos 6.5 安装nginx日志分析系统 elasticsearch + logstash + redis + kibana - http://blog.chinaunix.net/xmlrpc.php?r=blog/article&uid=17291169&id=4898582
logstash-forwarder and grok examples - https://www.ulyaoth.net/threads/logstash-forwarder-and-grok-examples.32413/
三斗室 - http://chenlinux.com/
elastic - https://www.elastic.co/guide
LTMP索引 - http://wsgzao.github.io/index/#LTMP
组件预览
JDK - http://www.oracle.com/technetwork/java/javase/downloads/index.html
Elasticsearch - https://www.elastic.co/downloads/elasticsearch
Logstash - https://www.elastic.co/downloads/logstash
Kibana - https://www.elastic.co/downloads/kibana
redis - http://redis.io/download
设置FQDN
创建SSL证书的时候需要配置FQDN
#修改hostnamecat /etc/hostname elk#修改hostscat /etc/hosts127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6127.0.0.1 10-10-87-1910.10.87.19 elk.ooxx.com elk#刷新环境hostname -F /etc/hostname#复查结果hostname -felk.ooxx.com hostname elk
服务端
Java
cat /etc/redhat-release CentOS release 6.5 (Final) yum install java-1.7.0-openjdk java -version java version "1.7.0_85"OpenJDK Runtime Environment (rhel-2.6.1.3.el6_6-x86_64 u85-b01) OpenJDK 64-Bit Server VM (build 24.85-b03, mixed mode)
Elasticsearch
#下载安装wget https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-1.7.1.noarch.rpm yum localinstall elasticsearch-1.7.1.noarch.rpm #启动相关服务service elasticsearch start service elasticsearch status#查看Elasticsearch的配置文件rpm -qc elasticsearch /etc/elasticsearch/elasticsearch.yml /etc/elasticsearch/logging.yml /etc/init.d/elasticsearch /etc/sysconfig/elasticsearch /usr/lib/sysctl.d/elasticsearch.conf /usr/lib/systemd/system/elasticsearch.service /usr/lib/tmpfiles.d/elasticsearch.conf#查看端口使用情况netstat -nltp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:9200 0.0.0.0:* LISTEN 1765/java tcp 0 0 0.0.0.0:9300 0.0.0.0:* LISTEN 1765/java tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1509/sshd tcp 0 0 :::22 :::* LISTEN 1509/sshd #测试访问curl -X GET http://localhost:9200/
Kibana
#下载tar包wget https://download.elastic.co/kibana/kibana/kibana-4.1.1-linux-x64.tar.gz#解压tar zxf kibana-4.1.1-linux-x64.tar.gz -C /usr/local/cd /usr/local/
mv kibana-4.1.1-linux-x64 kibana#创建kibana服务vi /etc/rc.d/init.d/kibana#!/bin/bash### BEGIN INIT INFO# Provides: kibana# Default-Start: 2 3 4 5# Default-Stop: 0 1 6# Short-Description: Runs kibana daemon# Description: Runs the kibana daemon as a non-root user### END INIT INFO# Process nameNAME=kibana
DESC="Kibana4"PROG="/etc/init.d/kibana"# Configure location of Kibana binKIBANA_BIN=/usr/local/kibana/bin# PID InfoPID_FOLDER=/var/run/kibana/
PID_FILE=/var/run/kibana/$NAME.pid
LOCK_FILE=/var/lock/subsys/$NAMEPATH=/bin:/usr/bin:/sbin:/usr/sbin:$KIBANA_BINDAEMON=$KIBANA_BIN/$NAME# Configure User to run daemon processDAEMON_USER=root# Configure logging locationKIBANA_LOG=/var/log/kibana.log# Begin ScriptRETVAL=0if [ `id -u` -ne 0 ]; then
echo "You need root privileges to run this script"
exit 1fi# Function library. /etc/init.d/functions
start() { echo -n "Starting $DESC : "pid=`pidofproc -p $PID_FILE kibana` if [ -n "$pid" ] ; then
echo "Already running."
exit 0
else
# Start Daemonif [ ! -d "$PID_FOLDER" ] ; then
mkdir $PID_FOLDER
fidaemon --user=$DAEMON_USER --pidfile=$PID_FILE $DAEMON 1>"$KIBANA_LOG" 2>&1 &
sleep 2
pidofproc node > $PID_FILE
RETVAL=$?
[[ $? -eq 0 ]] && success || failureecho
[ $RETVAL = 0 ] && touch $LOCK_FILE
return $RETVAL
fi}reload()
{ echo "Reload command is not implemented for this service."
return $RETVAL}stop() { echo -n "Stopping $DESC : "
killproc -p $PID_FILE $DAEMON
RETVAL=$?echo
[ $RETVAL = 0 ] && rm -f $PID_FILE $LOCK_FILE}
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status -p $PID_FILE $DAEMON
RETVAL=$?
;;
restart)
stop
start
;;
reload)
reload
;;
*)# Invalid Arguments, print the following message.
echo "Usage: $0 {start|stop|status|restart}" >&2exit 2
;;esac#修改启动权限chmod +x /etc/rc.d/init.d/kibana#启动kibana服务service kibana start
service kibana status#查看端口netstat -nltp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:9200 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:9300 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1509/sshd
tcp 0 0 0.0.0.0:5601 0.0.0.0:* LISTEN 1876/node
tcp 0 0 :::22 :::* LISTEN 1509/sshd
Logstash
#下载rpm包wget https://download.elastic.co/logstash/logstash/packages/centos/logstash-1.5.4-1.noarch.rpm#安装yum localinstall logstash-1.5.4-1.noarch.rpm
#设置ssl，之前设置的FQDN是elk.ooxx.comcd /etc/pki/tls#openssl req -x509 -batch -nodes -newkey rsa:2048 -keyout lumberjack.key -out lumberjack.crt -subj /CN=logstash.example.comopenssl req -subj '/CN=elk.ooxx.com/' -x509 -days 3650 -batch -nodes -newkey rsa:2048 -keyout private/logstash-forwarder.key -out certs/logstash-forwarder.crt
#创建一个01-logstash-initial.conf文件cat > /etc/logstash/conf.d/01-logstash-initial.conf << EOF
input {
lumberjack {
port => 5000
type => "logs"
ssl_certificate => "/etc/pki/tls/certs/logstash-forwarder.crt"
ssl_key => "/etc/pki/tls/private/logstash-forwarder.key"
}
}
filter { if [type] == "syslog" {
grok {
match => { "message" => "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:syslog_hostname} %{DATA:syslog_program}(?:\[%{POSINT:syslog_pid}\])?: %{GREEDYDATA:syslog_message}" }
add_field => [ "received_at", "%{@timestamp}" ]
add_field => [ "received_from", "%{host}" ]
}
syslog_pri { }
date {
match => [ "syslog_timestamp", "MMM d HH:mm:ss", "MMM dd HH:mm:ss" ]
}
}
}
output {
elasticsearch { host => localhost }
stdout { codec => rubydebug }
}
EOF#启动logstash服务service logstash start
service logstash status#查看5000端口netstat -nltp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:9200 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:9300 0.0.0.0:* LISTEN 1765/java
tcp 0 0 0.0.0.0:9301 0.0.0.0:* LISTEN 2309/java
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1509/sshd
tcp 0 0 0.0.0.0:5601 0.0.0.0:* LISTEN 1876/node
tcp 0 0 0.0.0.0:5000 0.0.0.0:* LISTEN 2309/java
tcp 0 0 :::22 :::* LISTEN 1509/sshd
#启动服务service logstash-forwarder start
service logstash-forwarder status#访问Kibana，Time-field name 选择 @timestamphttp://localhost:5601/#增加节点和客户端配置一样，注意同步证书/etc/pki/tls/certs/logstash-forwarder.crt
客户端
Logstash Forwarder
#登陆到客户端，安装Logstash Forwarderwget https://download.elastic.co/logstash-forwarder/binaries/logstash-forwarder-0.4.0-1.x86_64.rpm
yum localinstall logstash-forwarder-0.4.0-1.x86_64.rpm#查看logstash-forwarder的配置文件位置rpm -qc logstash-forwarder
/etc/logstash-forwarder.conf#备份配置文件cp /etc/logstash-forwarder.conf /etc/logstash-forwarder.conf.save#编辑 /etc/logstash-forwarder.conf，需要根据实际情况进行修改cat > /etc/logstash-forwarder.conf << EOF
{ "network": { "servers": [ "elk.ooxx.com:5000" ], "ssl ca": "/etc/pki/tls/certs/logstash-forwarder.crt", "timeout": 15
}, "files": [
{ "paths": [ "/var/log/messages", "/var/log/secure"
], "fields": { "type": "syslog" }
}
]
}
EOF
配置Nginx日志策略
#修改客户端配置vi /etc/logstash-forwarder.conf
{ "network": { "servers": [ "elk.ooxx.com:5000" ], "ssl ca": "/etc/pki/tls/certs/logstash-forwarder.crt", "timeout": 15
}, "files": [
{ "paths": [ "/var/log/messages", "/var/log/secure"
], "fields": { "type": "syslog" }
}, { "paths": [ "/app/local/nginx/logs/access.log"
], "fields": { "type": "nginx" }
}
]
}#服务端增加patternsmkdir /opt/logstash/patterns
vi /opt/logstash/patterns/nginx
NGUSERNAME [a-zA-Z\.\@\-\+_%]+
NGUSER %{NGUSERNAME}
NGINXACCESS %{IPORHOST:remote_addr} - - \[%{HTTPDATE:time_local}\] "%{WORD:method} %{URIPATH:path}(?:%{URIPARAM:param})? HTTP/%{NUMBER:httpversion}" %{INT:status} %{INT:body_bytes_sent} %{QS:http_referer} %{QS:http_user_agent}#官网pattern的debug在线工具https://grokdebug.herokuapp.com/#修改logstash权限chown -R logstash:logstash /opt/logstash/patterns#修改服务端配置vi /etc/logstash/conf.d/01-logstash-initial.conf
input {
lumberjack {
port => 5000
type => "logs"
ssl_certificate => "/etc/pki/tls/certs/logstash-forwarder.crt"
ssl_key => "/etc/pki/tls/private/logstash-forwarder.key"
}
}
filter { if [type] == "syslog" {
grok {
match => { "message" => "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:syslog_hostname} %{DATA:syslog_program}(?:\[%{POSINT:syslog_pid}\])?: %{GREEDYDATA:syslog_message}" }
add_field => [ "received_at", "%{@timestamp}" ]
add_field => [ "received_from", "%{host}" ]
}
syslog_pri { }
date {
match => [ "syslog_timestamp", "MMM d HH:mm:ss", "MMM dd HH:mm:ss" ]
}
} if [type] == "nginx" {
grok {
match => { "message" => "%{NGINXACCESS}" }
}
}
}
output {
elasticsearch { host => localhost }
stdout { codec => rubydebug }
}
其它注意事项
修改kibana端口
#编辑kibana.yamlvi /usr/local/kibana/config/kibana.yml# Kibana is served by a back end server. This controls which port to use.#port: 5601port: 80# The host to bind the server to.host: "0.0.0.0"# The Elasticsearch instance to use for all your queries.elasticsearch_url: "http://localhost:9200"# preserve_elasticsearch_host true will send the hostname specified in `elasticsearch`. If you set it to false,# then the host you use to connect to *this* Kibana instance will be sent.elasticsearch_preserve_host: true# Kibana uses an index in Elasticsearch to store saved searches, visualizations# and dashboards. It will create a new index if it doesn't already exist.kibana_index: ".kibana"# If your Elasticsearch is protected with basic auth, this is the user credentials# used by the Kibana server to perform maintence on the kibana_index at statup. Your Kibana# users will still need to authenticate with Elasticsearch (which is proxied thorugh# the Kibana server)# kibana_elasticsearch_username: user# kibana_elasticsearch_password: pass# If your Elasticsearch requires client certificate and key# kibana_elasticsearch_client_crt: /path/to/your/client.crt# kibana_elasticsearch_client_key: /path/to/your/client.key# If you need to provide a CA certificate for your Elasticsarech instance, put# the path of the pem file here.# ca: /path/to/your/CA.pem# The default application to load.default_app_id: "discover"# Time in milliseconds to wait for elasticsearch to respond to pings, defaults to# request_timeout setting# ping_timeout: 1500# Time in milliseconds to wait for responses from the back end or elasticsearch.# This must be > 0request_timeout: 300000# Time in milliseconds for Elasticsearch to wait for responses from shards.# Set to 0 to disable.shard_timeout: 0# Time in milliseconds to wait for Elasticsearch at Kibana startup before retrying# startup_timeout: 5000# Set to false to have a complete disregard for the validity of the SSL# certificate.verify_ssl: true# SSL for outgoing requests from the Kibana Server (PEM formatted)# ssl_key_file: /path/to/your/server.key# ssl_cert_file: /path/to/your/server.crt# Set the path to where you would like the process id file to be created.# pid_file: /var/run/kibana.pid# If you would like to send the log output to a file you can set the path below.# This will also turn off the STDOUT log output.# log_file: ./kibana.log# Plugins that are included in the build, and no longer found in the plugins/ folderbundled_plugin_ids: - plugins/dashboard/index - plugins/discover/index - plugins/doc/index - plugins/kibana/index - plugins/markdown_vis/index - plugins/metric_vis/index - plugins/settings/index - plugins/table_vis/index - plugins/vis_types/index - plugins/visualize/index
JVM调优
#修改elasticsearch.in.shvi /usr/share/elasticsearch/bin/elasticsearch.in.shif [ "x$ES_MIN_MEM" = "x" ]; then ES_MIN_MEM=1gfiif [ "x$ES_MAX_MEM" = "x" ]; then ES_MAX_MEM=1g
转载: http://segmentfault.com/a/1190000003689999 http://wsgzao.github.io/post/elk/