9.elk部署

Elasticsearch 是个开源分布式搜索引擎，它的特点有：分布式，零配置，自动发现，索引自动分片，索引副本机制，restful风格接口，多数据源，自动搜索负载等。

Logstash 是一个完全开源的工具，他可以对你的日志进行收集、分析，并将其存储供以后使用（如，搜索）

kibana 也是一个开源和免费的工具，他Kibana可以为 Logstash 和 ElasticSearch 提供的日志分析友好的 Web 界面，可以帮助您汇总、分析和搜索重要数据日志。

服务端软件：

Elasticsearch：负责日志检索和分析，它的特点有：分布式，零配置，自动发现，索引自动分片，索引副本机制，restful风格接口，多数据源，自动搜索负载等
Logstash：对日志进行收集、过滤，并将其存储供以后使用（如，搜索日志）
Kibana：为日志分析提供友好的Web界面，可以帮助汇总、分析和搜索重要数据日志
客户端软件：
在需要收集日志的所有服务上部署logstash，作为logstash agent（logstash shipper）用于监控并过滤收集日志，将过滤后的内容发送到logstash indexer，logstash indexer将日志收集在一起交给全文搜索服务ElasticSearch，可以用ElasticSearch进行自定义搜索，然后通过Kibana来结合自定义搜索进行页面展示。

192.168.50.119：ELK+Nginx

192.168.50.120：Redis+Logstash

部署流程：

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192.168.50.119 ELK服务器

1.安装JDK

Logstash的运行依赖于Java运行环境， Logstash 1.5以上版本不低于java 7推荐使用最新版本的Java，我这里使用了1.8版本

我们只需要Java的运行环境，所以可以只安装JRE，不过这里我依然使用JDK，请自行搜索安装。
#rpm -ivh jdk-8u25-linux-x64.rpm

vim /etc/profile #设置环境变量

export JAVA_HOME=/usr/local/jdk1.8.0_45

export PATH=$PATH:$JAVA_HOME/bin

export CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:$CLASSPATH

source /etc/profile #使环境变量生效

java -version

java version "1.8.0_25"

Java(TM) SE Runtime Environment (build 1.8.0_25-b17)

Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)

2.安装Logstash（日志收集、分析，并将其存储供以后使用）

这里安装遇到了下载的坑，最好去使用迅雷下载安装包

wget https://download.elastic.co/logstash/logstash/logstash-2.4.0.tar.gz

tar –zxf logstash-2.4.0.tar.gz -C /usr/local/

验证logstash是否安装成功

[root@localhost ~]# /usr/local/logstash-2.4.0/bin/logstash -e 'input { stdin { } } output { stdout {} }'

Settings: Default pipeline workers: 1

Logstash startup completed

等待输入:hello world

2016-11-28T20:32:07.853Z localhost.localdomain hello world

3.部署nginx并收集日志

yum -y install nginx

设置nginx的log 格式

vim /etc/nginx/nginx.conf

log_format main '$remote_addr - $remote_user [$time_local] "$request" '

'$status $body_bytes_sent "$http_referer" '

'"$http_user_agent" $http_x_forwarded_for $request_length $msec $connection_requests $request_time';

系统安装了nginx就跳过此步骤

service nginx start

mkdir /usr/local/logstash-2.4.0/conf/ #创建logstash配置目录

定义logstash配置文件，用来收集nginx日志

[root@localhost conf]# cat logstash_nginx.conf

input {

     file {

        path => ["/var/log/nginx/access.log"]

        type => "nginx_log"

     }

}

output {

     redis{

         host => "192.168.50.120"

         key => 'logstash-redis'

         data_type => 'list'

    }

    stdout {

codec => rubydebug

    }

}

4.安装部署redis

192.168.50.120 服务器

yum -y install redis

vim /etc/redis.conf

bind 192.168.50.120

service redis start

5.启动Logstash

[root@localhost conf]# /usr/local/logstash-2.4.0/bin/logstash -f ./logstash_nginx.conf --configtest #检查配置文件

Configuration OK

[root@localhost conf]# /usr/local/logstash-2.4.0/bin/logstash agent -f ./logstash_nginx.conf #将日志信息输出到redis服务器

Settings: Default pipeline workers: 1

Logstash startup completed

{

"message" => "192.168.50.114 - - [29/Nov/2016:00:58:43 +0800] \"GET / HTTP/1.1\" 304 0 \"-\" \"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36\" \"-\"",

"@version" => "1",

"@timestamp" => "2016-11-28T18:55:49.587Z",

"path" => "/var/log/nginx/access.log",

"host" => "localhost.localdomain",

"type" => "nginx_log"

}

{

"message" => "192.168.50.114 - - [29/Nov/2016:00:58:43 +0800] \"GET /nginx-logo.png HTTP/1.1\" 304 0 \"http://192.168.50.119/\" \"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36\" \"-\"",

"@version" => "1",

"@timestamp" => "2016-11-28T18:55:49.590Z",

"path" => "/var/log/nginx/access.log",

"host" => "localhost.localdomain",

"type" => "nginx_log"

}

{

"message" => "192.168.50.114 - - [29/Nov/2016:00:58:43 +0800] \"GET /poweredby.png HTTP/1.1\" 304 0 \"http://192.168.50.119/\" \"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36\" \"-\"",

"@version" => "1",

"@timestamp" => "2016-11-28T18:55:49.590Z",

"path" => "/var/log/nginx/access.log",

"host" => "localhost.localdomain",

"type" => "nginx_log"

}

6.安装部署Elasticsearch

192.168.50.119 ELK服务器

创建安装用户

groupadd elk

useradd es -g elk

tar -xf elasticsearch-2.2.0.tar.gz -C /usr/local/

vim /usr/local/elasticsearch-2.2.0/config/elasticsearch.yml

network.host: 192.168.50.119 # 端口绑定ip地址

http.port: 9200

启动：

这里遇到一个坑：es用户默认是不能用root用户启动的。所以要切到普通用户启动

chown -R es.elk /usr/local/elasticsearch-2.2.0

su - es

nohup /usr/local/elasticsearch-2.2.0/bin/elasticsearch >/usr/local/elasticsearch-2.2.0/nohub &

[root@localhost ELK]# netstat -tunpl | grep 9200

tcp 0 0 ::ffff:192.168.50.119:9200 :::* LISTEN 2183/java

[root@localhost ELK]# curl http://192.168.50.119:9200 #查看状态

{

"name" : "Blood Brothers",

"cluster_name" : "elasticsearch",

"version" : {

"number" : "2.2.0",

"build_hash" : "8ff36d139e16f8720f2947ef62c8167a888992fe",

"build_timestamp" : "2016-01-27T13:32:39Z",

"build_snapshot" : false,

"lucene_version" : "5.4.1"

"tagline" : "You Know, for Search"

安装kopf和head插件

[root@localhost conf]# cd /usr/local/elasticsearch-2.2.0/bin/

[root@localhost bin]# ./plugin install lmenezes/elasticsearch-kopf

-> Installing lmenezes/elasticsearch-kopf...

Trying https://github.com/lmenezes/elasticsearch-kopf/archive/master.zip ...

Downloading ............................................................ DONE

Verifying https://github.com/lmenezes/elasticsearch-kopf/archive/master.zip checksums if available ...

NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify)

Installed kopf into /usr/local/elasticsearch-2.2.0/plugins/kopf

[root@localhost bin]# ./plugin install mobz/elasticsearch-head

-> Installing mobz/elasticsearch-head...

Trying https://github.com/mobz/elasticsearch-head/archive/master.zip ...

Downloading .........................................................DONE

NOTE: Unable to verify checksum for downloaded plugin (unable to find .sha1 or .md5 file to verify)

Installed head into /usr/local/elasticsearch-2.2.0/plugins/head

7.安装kibana

192.168.50.119 ELK服务器

安装

[root@localhost ELK]# tar -xf kibana-4.4.0-linux-x64.tar.gz -C /usr/local/

[root@localhost ELK]# cd /usr/local/kibana-4.4.0-linux-x64/

配置

[root@localhost kibana-4.4.0-linux-x64]# vim config/kibana.yml

elasticsearch.url: "http://192.168.50.119:9200"

server.port: 5601

server.host: "0.0.0.0"

启动

[root@localhost kibana-4.4.0-linux-x64]# nohup /usr/local/kibana-4.4.0-linux-x64/bin/kibana > /usr/local/kibana-4.4.0-linux-x64/nohub.out &

[root@localhost ELK]# netstat -tunpl | grep 5601

tcp 0 0 0.0.0.0:5601 0.0.0.0:*

浏览器访问http://192.168.50.119:5601/

8.安装logstash-server服务器

192.168.50.120 服务器

安装jdk和logstash

tar -zxf jdk-8u45-linux-x64.tar.gz -C /usr/local/

vim /etc/profile #设置环境变量

export JAVA_HOME=/usr/local/jdk1.8.0_45

export PATH=$PATH:$JAVA_HOME/bin

export CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:$CLASSPATH

source /etc/profile #使环境变量生效

tar –zxf logstash-2.4.0.tar.gz -C /usr/local/

mkdir /usr/local/logstash-2.4.0/conf

将redis 中的数据发送到elasticsearch中

[root@localhost conf]# cat logstash_server.conf

input {

redis {

port => "6379"

host => "192.168.50.120"

data_type => "list"

key => "logstash-redis"

type => "redis-input"

}

output {

elasticsearch {

hosts => "192.168.50.119"

index => "logstash-%{+YYYY.MM.dd}"

}

9.在Kibanda上创建nginx日志监控视图

es常规操作

查看状态

curl "http://127.0.0.1:9200/_status?pretty=true"

查看集群健康

curl "http://127.0.0.1:9200/_cat/health?v

列出集群索引

curl "http://127.0.0.1:9200/_cat/indices?"

删除索引

curl -XDELETEE "http://127.0.0.1:9200/logstash-2015.10.28"

优化索引

curl -XPOST "http://127.0.0.1:9200/logstash-2015.10.28/_optimize"

curl -XGET 'http://localhost:9200/logstash-2015.10.28/_search?pretty=true' -d '

{

"query" : {

"matchAll" : {}

}

下载资料百度云盘地址（里面安装包文档都有）

http://pan.baidu.com/s/1jHVKRMQ

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