[ELK] yum安装ELK

1.系统环境设置

1.1 安装环境:

硬件环境：VMware虚拟机

操作系统：centos 7

ELK相关软件版本: 6.3.2

[bj1100@vm-es-01 Downloads]$ uname -a
Linux vm-es-01 3.10.0-514.el7.x86_64 #1 SMP Tue Nov 22 16:42:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
[bj1100@vm-es-01 Downloads]$

1.2 关闭selinux、防火墙(包括开机启动)

systemctl stop firewalld
systemctl disable firewalld
sed -i '/^SELINUX=/s/enforcing/disabled/' /etc/selinux/config
grep '^SELINUX=' /etc/selinux/config
setenforce off

1.3 设置主机名和tcp连接数

cat /etc/hostname

#如果想起个名字可以用下面命令永久生效

hostnamectl set-hostname vm-es-01

Linux 服务器查看服务器默认的 tcp 连接数命令是 ulimit -n，阿里云默认的 tcp 连接数是 65535，超过

会有影响，我这里也采用阿里云的方式，如果物理机其实可以设置大 10 倍也没问题。

cat>>/etc/security/limits.conf<<EOF
#by hua
* soft nofile 655350
* hard nofile 655350
EOF
cat /etc/security/limits.conf
ulimit -n

sysctl -w vm.max_map_count=655360
sysctl -a |grep "vm.max_map_count"

2.安装jdk

elasticsearch依赖于java。

注:centos7自带java8,但是如果要安装xpath和logstash，需要javac，建议手动重新安装java的rpm包。

参考: https://blog.csdn.net/bao19901210/article/details/52091867

2.1 卸载旧版本的JDK

rpm -qa | grep jdk

rpm -qa | grep gcj

yum -y remove ***

2.2安装下载的新版本

rpm -ivh jdk-8u144-linux-x64.rpm --nodeps --force

2.3 查看jdk版本

[bj1100@vm-es-01 Downloads]$ java -version
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)
[bj1100@vm-es-01 Downloads]$ javac -version
javac 1.8.0_144
[bj1100@vm-es-01 Downloads]$

3.epel 源安装

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

4. 安装 ELK6.x

rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch
cat>/etc/yum.repos.d/elasticsearch.repo<<EOF
[elasticsearch-6.x]
name=Elasticsearch repository for 6.x packages
baseurl=https://artifacts.elastic.co/packages/6.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md
EOF
yum install elasticsearch logstash kibana -y

4.elasticsearch 简单配置及启动

4.1 查看安装相关

rpm -ql elasticsearch-6.2.3-1.noarch
rpm -ql elasticsearch-6.2.3-1.noarch|grep 'elasticsearch/bin'
cd /etc/elasticsearch/
cp elasticsearch.yml elasticsearch.yml.orig

4.2 修改配置

mkdir -p /disk1/elkDate/elasticsearch
mkdir -p /disk1/logs/elasticsearch
chown elasticsearch.elasticsearch -R /disk1/elkDate/elasticsearch
chown elasticsearch.elasticsearch -R /disk1/logs/elasticsearch

sed -i '/path.data/s#/path/to/data#/disk1/elkDate/elasticsearch#' elasticsearch.yml
sed -i '/path.data/s/#//' elasticsearch.yml
sed -i '/path.logs/s#/path/to/logs#/disk1/logs/elasticsearch#' elasticsearch.yml
sed -i '/path.logs/s/#//' elasticsearch.yml
grep 'path.' elasticsearch.yml

#修改 ip 地址为内网(或者为公网 0.0.0.0)

sed -i '/network.host/s/0.1/157.144/' elasticsearch.yml

sed -i '/network.host/s/#//' elasticsearch.yml

grep 'network.host' elasticsearch.yml

#避免出现跨域问题

cat>>/etc/elasticsearch/elasticsearch.yml<<EOF

#by hua

http.cors.allow-origin: "*"

http.cors.enabled: true

#xpack.security.authc:

# anonymous:

# username: elastic

# roles: superuser

# authz_exception: true

EOF

tail -10 /etc/elasticsearch/elasticsearch.yml

4.3 启动

systemctl daemon-reload

systemctl enable elasticsearch.service

systemctl start elasticsearch

systemctl status elasticsearch

sleep 20

netstat -altnp|grep 9200

4.4 浏览器查看

http://192.168.157.144:9200

5 kibana 简单配置及启动

5.1 yum安装

yum -y install kibana

安装完成后查看

rpm -ql kibana-6.3.2-1.x86_64|grep 'kibana/bin'

5.2. 修改配置

cd /etc/kibana/

cp kibana.yml kibana.yml.orig

#修改 ip 地址为内网网卡 IP

sed -i '/#server.host/s/"localhost"/192.168.33.160/' kibana.yml

sed -i '/#server.host/s/#//' kibana.yml

grep 'server.host' kibana.yml

sed -i '/elasticsearch.url/s/localhost/192.168.33.160/' kibana.yml

sed -i '/elasticsearch.url/s/#//' kibana.yml

grep 'elasticsearch.url' kibana.yml

5.3 启动

systemctl start kibana

systemctl restart kibana

systemctl status kibana

sleep 30

netstat -altnp|grep 5601

6.logstash 简单配置及启动

logstash 对于初学者来说是最容易出问题的，所以一下要开 2 个 SSH，一个是命令操作，一个用

看查看日志，要保证不要报错。

6.1. 查看安装相关

yum -y install logstash

rpm -ql logstash-6.3.2-1.noarch|egrep -v "/usr/share"

#查看命令

[root@vm1 logstash]#rpm -ql logstash-6.3.2-1.noarch |grep 'logstash/bin'

/usr/share/logstash/bin/cpdump

/usr/share/logstash/bin/ingest-convert.sh

/usr/share/logstash/bin/logstash

/usr/share/logstash/bin/logstash-plugin

/usr/share/logstash/bin/logstash-plugin.bat

/usr/share/logstash/bin/logstash.bat

/usr/share/logstash/bin/logstash.lib.sh

/usr/share/logstash/bin/ruby

/usr/share/logstash/bin/setup.bat

/usr/share/logstash/bin/system-install

6.2 修改配置

cd /etc/logstash/

cp logstash.yml logstash.yml.orig

#建立相关数据和日志目录

mkdir -p /disk1/elkDate/logstash

mkdir -p /disk1/logs/logstash

chown logstash.logstash -R /disk1/elkDate/logstash

chown logstash.logstash -R /disk1/logs/logstash

sed -i '/^path.data/s#/var/lib/logstash#/disk1/elkDate/logstash#' logstash.yml

sed -i '/^path.logs/s#/var/log/logstash#/disk1/logs/logstash#' logstash.yml

egrep '^path.' logstash.yml

#下面的配置路径一般不需要修改

#sed -i '/path.config/s#/conf.d##' logstash.yml

6.3 配置 pipeline 文件（只是一个测试配置，获取 messages 信息）

#配置文件也可暂时不建立也行，不影响，默认情况是没有任何配置的，没配置启动服务没意义！

#根据默认配置，pipeline 实例文件默认应放置于/etc/logstash/conf.d 目录，此时目录下无实例文件，

#可根据实际情况新建实例，以处理本机 messages 信息为例，如下

cd /etc/logstash/conf.d/

cat>messages.conf<<EOF

input {

file {

path => "/var/log/messages"

}

}

output {

elasticsearch {

#hosts => ["192.168.157.142:9200","192.168.157.142:9200"]

hosts => ["192.168.33.160:9200"]

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

}

stdout {

# codec => rubydebug

}

}

EOF

cat messages.conf

#从上面知道建立的索引是“messages-年.月.日”的格式，安装后 kibana，web 登陆可以用到

6.4 测试

#输入下面命令就会自动启动 logstash，当退出就会停止，如果要长期运行就启动服务的方式。

logstash -e 'input { stdin { } } output { stdout {} }'

发现报错：

解决：

ctrl+c 退出

ln -s /etc/logstash /usr/share/logstash/config

chown logstash.logstash -R /etc/logstash

#再次运行，输入 hello world 测试一下

6.5 启动

#上面配置了一个 messages 日志，为了长期运行，所以启动服务，到后面可以查一下情况

systemctl daemon-reload

systemctl enable logstash

systemctl start logstash

systemctl status logstash

如果只是安装虚拟机测试的话不建议安装logstash，内存资源消耗高，可用 metricbeat 测试。

metricbeat 安装参考链接：https://blog.csdn.net/tonghudan/article/details/81428936

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