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ELK学习（一）ELK服务部署
一、概述
Elasticsearch + Logstash + Kibana（ELK）是一套开源的日志管理方案。
官网：https://www.elastic.co/guide/index.html
1. ElasticSearch（管理）
ElasticSearch是一个基于Lucene的搜索服务器。它提供了一个分布式多用户能力的全文搜索引擎，基于RESTful web接口。Elasticsearch是用Java开发的，并作为Apache许可条款下的开放源码发布，是当前流行的企业级搜索引擎。设计用于云计算中，能够达到实时搜索，稳定，可靠，快速，安装使用方便。
2. Logstash（收集）
Logstash是一个用于管理日志和事件的工具，你可以用它去收集日志、转换日志、解析日志并将他们作为数据提供给其它模块调用，例如搜索、存储等。
3. Kibana（可视化）
Kibana是一个优秀的前端日志展示框架，它可以非常详细的将日志转化为各种图表，为用户提供强大的数据可视化支持。
二、准备环境
测试环境：centos7 2G 1核；hostname:tg01（不能再低了） ；ip:10.0.0.203
版本：elk 6.4.0
三、服务部署
1、安装Elasticsearch
将 Elasticsearch 公共 GPG 密钥导入 rpm：
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch在/etc/yum.repos.d/目录中，创建一个名为elasticsearch.repo的文件，添加下面配置：
cd /etc/yum.repos.d/
vim elasticsearch.repo
##############################################
[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安装
yum makecache
yum install elasticsearch -y修改配置（启动地址和端口）：
vim /etc/elasticsearch/elasticsearch.yml
##############################################
node.name: tg_test_01
network.host: 10.0.0.203 # 默认localhost，自定义为ip
http.port: 9200设置开机启动
systemctl daemon-reload
systemctl enable elasticsearch.service启动
systemctl start elasticsearch.service查看状态
systemctl status elasticsearch.service
##############################################
● elasticsearch.service - Elasticsearch
Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: disabled)
Active: active (running) since 三 2018-09-12 09:00:12 CST; 5min ago
Docs: http://www.elastic.co
Main PID: 3843 (java)
CGroup: /system.slice/elasticsearch.service
├─3843 /bin/java -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX...
└─3895 /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/controller
9月 12 09:00:12 tg01 systemd[1]: Started Elasticsearch.
9月 12 09:00:12 tg01 systemd[1]: Starting Elasticsearch...正在运行，查看端口
netstat -lntup
##############################################
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 935/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1074/master
tcp6 0 0 10.0.0.203:9200 :::* LISTEN 3843/java
tcp6 0 0 10.0.0.203:9300 :::* LISTEN 3843/java
tcp6 0 0 :::22 :::* LISTEN 935/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1074/master列出服务日志
journalctl --unit elasticsearch
##############################################
-- Logs begin at 三 2018-09-12 08:02:17 CST, end at 三 2018-09-12 09:01:01 CST. --
9月 12 09:00:12 tg01 systemd[1]: Started Elasticsearch.
9月 12 09:00:12 tg01 systemd[1]: Starting Elasticsearch...查看信息，也是一种检测。若能出现如下信息，则说明配置正确
curl http://10.0.0.203:9200
##############################################
{
"name" : "tg_test_01",
"cluster_name" : "elasticsearch",
"cluster_uuid" : "7wdhbmETSfWXU6z2KDiiKA",
"version" : {
"number" : "6.4.0",
"build_flavor" : "default",
"build_type" : "rpm",
"build_hash" : "595516e",
"build_date" : "2018-08-17T23:18:47.308994Z",
"build_snapshot" : false,
"lucene_version" : "7.4.0",
"minimum_wire_compatibility_version" : "5.6.0",
"minimum_index_compatibility_version" : "5.0.0"
},
"tagline" : "You Know, for Search"
}2、安装Kibana
将 Elasticsearch 公共 GPG 密钥导入 rpm：
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch在/etc/yum.repos.d/目录中，创建一个名为kibana.repo的文件，添加下面配置：
cd /etc/yum.repos.d/
vim kibana.repo
############################################
[kibana-6.x]
name=Kibana 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安装kibana
yum makecache
yum install kibana -y修改配置（地址和端口，以及 Elasticsearch 的地址，注意server.host只能填写服务器的 IP 地址）：
vi /etc/kibana/kibana.yml
####################################################3
server.host: "10.0.0.203"
server.name: "tg01"
elasticsearch.url: "http://10.0.0.203:9200"
logging.dest: /var/log/kibana.log设置为开机启动
systemctl daemon-reload
systemctl enable kibana.service启动
systemctl start kibana.service查看状态
systemctl status kibana.service
##############################################
● kibana.service - Kibana
Loaded: loaded (/etc/systemd/system/kibana.service; enabled; vendor preset: disabled)
Active: active (running) since 三 2018-09-12 09:34:51 CST; 1min 25s ago
Main PID: 6356 (node)
CGroup: /system.slice/kibana.service
└─6356 /usr/share/kibana/bin/../node/bin/node --no-warnings /usr/share/kibana/bin/../src/cli -c ...
9月 12 09:35:12 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:12Z","tags":["status"...rch"}
9月 12 09:35:12 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:12Z","tags":["status"...rch"}
9月 12 09:35:12 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:12Z","tags":["status"...rch"}
9月 12 09:35:12 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:12Z","tags":["status"...rch"}
9月 12 09:35:12 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:12Z","tags":["status"...rch"}
9月 12 09:35:12 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:12Z","tags":["status"...rch"}
9月 12 09:35:12 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:12Z","tags":["info","...ion"}
9月 12 09:35:12 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:12Z","tags":["status"...rch"}
9月 12 09:35:13 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:13Z","tags":["license...ive"}
9月 12 09:35:29 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:29Z","tags":["info","...601"}
Hint: Some lines were ellipsized, use -l to show in full.查看端口
netstat -lntup
##############################################
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 10.0.0.203:5601 0.0.0.0:* LISTEN 6356/node
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 935/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1074/master
tcp6 0 0 10.0.0.203:9200 :::* LISTEN 3843/java
tcp6 0 0 10.0.0.203:9300 :::* LISTEN 3843/java
tcp6 0 0 :::22 :::* LISTEN 935/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1074/master查看活动日志
journalctl --unit kibana
########################################
-- Logs begin at 三 2018-09-12 08:02:17 CST, end at 三 2018-09-12 09:35:29 CST. --
9月 12 09:34:51 tg01 systemd[1]: Started Kibana.
9月 12 09:34:51 tg01 systemd[1]: Starting Kibana...
9月 12 09:35:09 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:09Z","tags":["status","plugin:
9月 12 09:35:09 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:09Z","tags":["status","plugin:
9月 12 09:35:09 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:09Z","tags":["status","plugin:
9月 12 09:35:09 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:09Z","tags":["status","plugin:
9月 12 09:35:09 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:09Z","tags":["status","plugin:
9月 12 09:35:10 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:10Z","tags":["status","plugin:
9月 12 09:35:10 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:10Z","tags":["status","plugin:
9月 12 09:35:10 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:10Z","tags":["status","plugin:
9月 12 09:35:10 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:10Z","tags":["status","plugin:
9月 12 09:35:10 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:10Z","tags":["status","plugin:
9月 12 09:35:10 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:10Z","tags":["status","plugin:
9月 12 09:35:10 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:10Z","tags":["status","plugin:
9月 12 09:35:10 tg01 kibana[6356]: {"type":"log","@timestamp":"2018-09-12T01:35:10Z","tags":["security","warni
3、创建索引
curl命令
curl -X<VERB> '<PROTOCOL>://<HOST>:<PORT>/<PATH>?<QUERY_STRING>' -d '<BODY>'
VERB HTTP方法：GET, POST, PUT, HEAD, DELETE
PROTOCOL http或者https协议（只有在Elasticsearch前面有https代理的时候可用）
HOST Elasticsearch集群中的任何一个节点的主机名
PORT Elasticsearch HTTP服务所在的端口，默认为9200
PATH API路径，资源路径（例如_count将返回集群中文档的数量）
QUERY_STRING 一些可选的查询请求参数，例如?pretty参数将返回易读的JSON数据
BODY 一个JSON格式的请求主体（如果请求需要的话）即使打得开网页，但也一直提示没有索引是怎么回事
查看索引列表
[root@tg01 yum.repos.d]# curl http://10.0.0.203:9200/_cat/indices
green open .kibana jVwLlSzQQHuTx0biFSiPNw 1 0 1 0 4kb 4kb有一个默认的.kibana才对啊。既然没有，那我就创一个
curl -XPUT 'http://10.0.0.203:9200/tg_test'过了一会，它才出现，并且连同默认的索引也一起出现了。但.monitoring-kibana-6-2018.09.12和open .monitoring-es-6-2018.09.12这两个索引是什么目前还不了解
[root@tg01 tools]# curl -XGET http://10.0.0.203:9200/_cat/indices
green open .kibana jVwLlSzQQHuTx0biFSiPNw 1 0 1 0 4kb 4kb
green open .monitoring-kibana-6-2018.09.12 1F_EkSNYSfqiHOW4B352qw 1 0 50 0 71.5kb 71.5kb
yellow open tg_test 2q_si7CEQ_-mU2_APKwmPw 5 1 0 0 1.2kb 1.2kb
green open .monitoring-es-6-2018.09.12 I14uthd5TY-splmVw1iuDg 1 0 416 52 416.9kb 416.9kb在浏览器中“Management”下选择“Index Management”
可以看到刚刚创建好的索引“tg_test”
也可以点击旁边的“include system indices”查看到默认的索引
点击“Monitoring”选择“indices:4”
可以看到创建的tg_test索引已加入监控
点击“tg_test”
可以查看监控项
而“Monitoring”“Nodes”表示节点
点击“Nodes:1”查看到设置的节点
这个节点就是在配置文件里设置的node.name
点击“tg_test_01”
也是有着监控项的，具体怎么用，还得后续研究
4、安装logstash
将 Elasticsearch 公共 GPG 密钥导入 rpm：
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch在/etc/yum.repos.d/目录中，创建一个名为logstash.repo的文件，添加下面配置：
cd /etc/yum.repos.d/
vim logstash.repo
###################################
[logstash-6.x]
name=Kibana 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安装logstash
yum makecache
yum install -y logstash测试配置
logstash收集syslog日志
vim /etc/logstash/conf.d/syslog.conf
###########################################
input { # 定义日志源
syslog {
type => "system-syslog" # 定义类型
port => 10086 # 定义监听端口
}
}
output { # 定义日志输出
stdout {
codec => rubydebug # 将日志输出到当前的终端上显示
}
}检测配置文件是否有错：
[root@tg01 yum.repos.d]# cd /usr/share/logstash/bin/
[root@tg01 bin]# ./logstash --path.settings /etc/logstash/ -f /etc/logstash/conf.d/syslog.conf --config.test_and_exit
Sending Logstash logs to /var/log/logstash which is now configured via log4j2.properties
[2018-09-12T14:26:56,905][INFO ][logstash.setting.writabledirectory] Creating directory {:setting=>"path.queue", :path=>"/var/lib/logstash/queue"}
[2018-09-12T14:26:56,937][INFO ][logstash.setting.writabledirectory] Creating directory {:setting=>"path.dead_letter_queue", :path=>"/var/lib/logstash/dead_letter_queue"}
[2018-09-12T14:26:57,937][WARN ][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
Configuration OK
[2018-09-12T14:27:03,203][INFO ][logstash.runner ] Using config.test_and_exit mode. Config Validation Result: OK. Exiting Logstash命令说明：
--path.settings 用于指定logstash的配置文件所在的目录
-f 指定需要被检测的配置文件的路径
--config.test_and_exit 指定检测完之后就退出，不然就会直接启动配置kibana服务器的ip以及配置的监听端口：
vim /etc/rsyslog.conf
#### RULES ####
*.* @@10.0.0.203:10086重启rsyslog，让配置生效：
systemctl restart rsyslog指定配置文件，启动logstash：
cd /usr/share/logstash/bin
[root@tg01 bin]# ./logstash --path.settings /etc/logstash/ -f /etc/logstash/conf.d/syslog.conf
Sending Logstash logs to /var/log/logstash which is now configured via log4j2.properties这时终端夯住，因为我们在配置文件中定义的是将信息输出到当前终端
打开新终端检查一下10086端口是否已被监听：
[root@tg01 ~]# netstat -lntup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 10.0.0.203:5601 0.0.0.0:* LISTEN 14945/node
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 935/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1074/master
tcp6 0 0 10.0.0.203:9200 :::* LISTEN 3843/java
tcp6 0 0 10.0.0.203:9300 :::* LISTEN 3843/java
tcp6 0 0 :::22 :::* LISTEN 935/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1074/master 这时，夯住的终端有了新的信息
[2018-09-12T14:32:04,287][WARN ][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
[2018-09-12T14:32:04,387][INFO ][logstash.agent ] No persistent UUID file found. Generating new UUID {:uuid=>"85ef4c07-d0ff-430a-b5aa-48835f265599", :path=>"/var/lib/logstash/uuid"}
[2018-09-12T14:32:06,107][INFO ][logstash.runner ] Starting Logstash {"logstash.version"=>"6.4.0"}
[2018-09-12T14:32:11,843][INFO ][logstash.pipeline ] Starting pipeline {:pipeline_id=>"main", "pipeline.workers"=>1, "pipeline.batch.size"=>125, "pipeline.batch.delay"=>50}
[2018-09-12T14:32:12,827][INFO ][logstash.pipeline ] Pipeline started successfully {:pipeline_id=>"main", :thread=>"#<Thread:0x3a343f17 run>"}
[2018-09-12T14:32:12,931][INFO ][logstash.agent ] Pipelines running {:count=>1, :running_pipelines=>[:main], :non_running_pipelines=>[]}
[2018-09-12T14:32:13,096][INFO ][logstash.inputs.syslog ] Starting syslog udp listener {:address=>"0.0.0.0:10086"}
[2018-09-12T14:32:13,113][INFO ][logstash.inputs.syslog ] Starting syslog tcp listener {:address=>"0.0.0.0:10086"}
[2018-09-12T14:32:13,691][INFO ][logstash.agent ] Successfully started Logstash API endpoint {:port=>9600}
[2018-09-12T14:32:57,818][INFO ][logstash.inputs.syslog ] new connection {:client=>"10.0.0.203:48690"}再查询端口
[root@tg01 ~]# netstat -lntup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 10.0.0.203:5601 0.0.0.0:* LISTEN 14945/node
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 935/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1074/master
tcp6 0 0 127.0.0.1:9600 :::* LISTEN 17533/java
tcp6 0 0 10.0.0.203:9200 :::* LISTEN 3843/java
tcp6 0 0 :::10514 :::* LISTEN 17533/java
tcp6 0 0 10.0.0.203:9300 :::* LISTEN 3843/java
tcp6 0 0 :::22 :::* LISTEN 935/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1074/master
udp 0 0 0.0.0.0:10086 0.0.0.0:* 17533/java又加了几个端口，用途尚且不知。再从本地ssh连接10.0.0.203
夯住的终端输出日志
{
"type" => "system-syslog",
"facility" => 10,
"program" => "sshd",
"severity_label" => "Informational",
"pid" => "17688",
"facility_label" => "security/authorization",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:32:57",
"logsource" => "tg01",
"priority" => 86,
"message" => "Accepted publickey for root from 10.0.0.1 port 53459 ssh2: RSA SHA256:aQCfdpzYLzbQOVU6CKReBBbbfAnjzm6Jcy72/wSCqb0\n",
"@timestamp" => 2018-09-12T06:32:57.000Z
}
{
"type" => "system-syslog",
"facility" => 5,
"program" => "rsyslogd",
"severity_label" => "Informational",
"facility_label" => "syslogd",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:32:57",
"logsource" => "tg01",
"priority" => 46,
"message" => "action 'action 0' resumed (module 'builtin:omfwd') [v8.24.0 try http://www.rsyslog.com/e/2359 ]\n",
"@timestamp" => 2018-09-12T06:32:57.000Z
}
{
"type" => "system-syslog",
"facility" => 5,
"program" => "rsyslogd",
"severity_label" => "Informational",
"facility_label" => "syslogd",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:32:57",
"logsource" => "tg01",
"priority" => 46,
"message" => "action 'action 0' resumed (module 'builtin:omfwd') [v8.24.0 try http://www.rsyslog.com/e/2359 ]\n",
"@timestamp" => 2018-09-12T06:32:57.000Z
}
{
"type" => "system-syslog",
"facility" => 3,
"program" => "systemd",
"severity_label" => "Informational",
"facility_label" => "system",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:32:57",
"logsource" => "tg01",
"priority" => 30,
"message" => "Started Session 17 of user root.\n",
"@timestamp" => 2018-09-12T06:32:57.000Z
}
{
"type" => "system-syslog",
"facility" => 4,
"program" => "systemd-logind",
"severity_label" => "Informational",
"facility_label" => "security/authorization",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:32:57",
"logsource" => "tg01",
"priority" => 38,
"message" => "New session 17 of user root.\n",
"@timestamp" => 2018-09-12T06:32:57.000Z
}
{
"type" => "system-syslog",
"facility" => 10,
"program" => "sshd",
"severity_label" => "Informational",
"pid" => "17688",
"facility_label" => "security/authorization",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:32:57",
"logsource" => "tg01",
"priority" => 86,
"message" => "pam_unix(sshd:session): session opened for user root by (uid=0)\n",
"@timestamp" => 2018-09-12T06:32:57.000Z
}
{
"type" => "system-syslog",
"facility" => 3,
"program" => "systemd",
"severity_label" => "Informational",
"facility_label" => "system",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:32:57",
"logsource" => "tg01",
"priority" => 30,
"message" => "Starting Session 17 of user root.\n",
"@timestamp" => 2018-09-12T06:32:57.000Z
}
{
"type" => "system-syslog",
"facility" => 10,
"program" => "sshd",
"severity_label" => "Informational",
"pid" => "17688",
"facility_label" => "security/authorization",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:33:23",
"logsource" => "tg01",
"priority" => 86,
"message" => "Received disconnect from 10.0.0.1 port 53459:11: disconnected by user\n",
"@timestamp" => 2018-09-12T06:33:23.000Z
}
{
"type" => "system-syslog",
"facility" => 10,
"program" => "sshd",
"severity_label" => "Informational",
"pid" => "17688",
"facility_label" => "security/authorization",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:33:23",
"logsource" => "tg01",
"priority" => 86,
"message" => "Disconnected from 10.0.0.1 port 53459\n",
"@timestamp" => 2018-09-12T06:33:23.000Z
}
{
"type" => "system-syslog",
"facility" => 10,
"program" => "sshd",
"severity_label" => "Informational",
"pid" => "17688",
"facility_label" => "security/authorization",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:33:23",
"logsource" => "tg01",
"priority" => 86,
"message" => "pam_unix(sshd:session): session closed for user root\n",
"@timestamp" => 2018-09-12T06:33:23.000Z
}
{
"type" => "system-syslog",
"facility" => 4,
"program" => "systemd-logind",
"severity_label" => "Informational",
"facility_label" => "security/authorization",
"host" => "10.0.0.203",
"@version" => "1",
"severity" => 6,
"timestamp" => "Sep 12 14:33:23",
"logsource" => "tg01",
"priority" => 38,
"message" => "Removed session 17.\n",
"@timestamp" => 2018-09-12T06:33:23.000Z
}
如上，可以看到，终端中以JSON的格式打印了收集到的日志，测试成功。
配置logstash
以上只是测试的配置，这一步我们需要重新改一下配置文件，让收集的日志信息输出到es服务器中，而不是当前终端：
vim /etc/logstash/conf.d/syslog.conf # 更改为如下内容
input {
syslog {
type => "system-syslog"
port => 10086
}
}
output {
elasticsearch {
hosts => ["10.0.0.203:9200"] # 定义es服务器的ip
index => "system-syslog-%{+YYYY.MM}" # 定义索引
}
}同样的需要检测配置文件有没有错：
cd /usr/share/logstash/bin
[root@tg01 bin]# ./logstash --path.settings /etc/logstash/ -f /etc/logstash/conf.d/syslog.conf --config.test_and_exit
Sending Logstash logs to /var/log/logstash which is now configured via log4j2.properties
[2018-09-12T14:48:42,992][WARN ][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified
Configuration OK
[2018-09-12T14:48:47,042][INFO ][logstash.runner ] Using config.test_and_exit mode. Config Validation Result: OK. Exiting Logstash给文件赋予logstash用户权限
chown -R logstash /var/lib/logstash/
chown -R logstash /var/log/logstash/*设置为开机启动
systemctl daemon-reload
systemctl enable logstash.service启动logstash
systemctl start logstash.service查看端口
[root@tg01 bin]# netstat -lntup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 10.0.0.203:5601 0.0.0.0:* LISTEN 14945/node
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 935/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1074/master
tcp6 0 0 127.0.0.1:9600 :::* LISTEN 19094/java
tcp6 0 0 10.0.0.203:9200 :::* LISTEN 3843/java
tcp6 0 0 :::10514 :::* LISTEN 19094/java
tcp6 0 0 10.0.0.203:9300 :::* LISTEN 3843/java
tcp6 0 0 :::22 :::* LISTEN 935/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1074/master
udp 0 0 0.0.0.0:10086 0.0.0.0:* 19094/java但是可以看到，logstash的监听ip是127.0.0.1这个本地ip，本地ip无法远程通信，所以需要修改一下配置文件，配置一下监听的ip：
vim /etc/logstash/logstash.yml
#####################################
http.host: "10.0.0.203"重启服务
systemctl restart logstash.service检查端口
[root@tg01 bin]# netstat -lntup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 10.0.0.203:5601 0.0.0.0:* LISTEN 14945/node
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 935/sshd
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1074/master
tcp6 0 0 10.0.0.203:9600 :::* LISTEN 19775/java
tcp6 0 0 10.0.0.203:9200 :::* LISTEN 3843/java
tcp6 0 0 :::10514 :::* LISTEN 19775/java
tcp6 0 0 10.0.0.203:9300 :::* LISTEN 3843/java
tcp6 0 0 :::22 :::* LISTEN 935/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1074/master
udp 0 0 0.0.0.0:10086 0.0.0.0:* 5、kibana上查看日志
完成了logstash服务器的搭建之后，回到kibana服务器上查看日志，执行以下命令可以获取索引信息：
[root@tg01 bin]# curl 'http://10.0.0.203:9200/_cat/indices?v'
health status index uuid pri rep docs.count docs.deleted store.size pri.store.size
green open .kibana jVwLlSzQQHuTx0biFSiPNw 1 0 2 0 13.6kb 13.6kb
green open .monitoring-kibana-6-2018.09.12 1F_EkSNYSfqiHOW4B352qw 1 0 997 0 374kb 374kb
yellow open system-syslog-2018.09 OqWFiqvtRVip660jN4kUNA 5 1 11 0 79.9kb 79.9kb
yellow open tg_test ZidQDQwBRHirzN-47EeaKw 5 1 0 0 1.2kb 1.2kb
green open .monitoring-es-6-2018.09.12 I14uthd5TY-splmVw1iuDg 1 0 8164 23 3.6mb如上，可以看到，在logstash配置文件中定义的system-syslog索引成功获取到了，证明配置没问题，logstash与es通信正常。
获取指定索引详细信息：
[root@tg01 bin]# curl -XGET '10.0.0.203:9200/system-syslog-2018.09?pretty'
{
"system-syslog-2018.09" : {
"aliases" : { },
"mappings" : {
"doc" : {
"properties" : {
"@timestamp" : {
"type" : "date"
},
"@version" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"facility" : {
"type" : "long"
},
"facility_label" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"host" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"logsource" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"message" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"pid" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"priority" : {
"type" : "long"
},
"program" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"severity" : {
"type" : "long"
},
"severity_label" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"timestamp" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"type" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
}
}
}
},
"settings" : {
"index" : {
"creation_date" : "1536735662461",
"number_of_shards" : "5",
"number_of_replicas" : "1",
"uuid" : "OqWFiqvtRVip660jN4kUNA",
"version" : {
"created" : "6040099"
},
"provided_name" : "system-syslog-2018.09"
}
}
}
}删除索引：
curl -XDELETE '10.0.0.203:9200/system-syslog-2018.09'（如果你想删除的话）es与logstash能够正常通信后就可以去配置kibana了
10.0.0.203:5601
点击“Management”填入一个指定索引“system-syslog-2018.09 ”
选择时间文件
点击“Management”设置通配符，进行批量匹配“system-syslog-*”
以system-syslog-开头的就会被匹配;选择时间文件
成功后点击“Discover”
选择system-syslog-*，如果出现以下提示，表示监测时间段没设置好。
点击右上角的“Last 15 minutes”设置时间为今天的时间段“From 2018-09-12 00:00:00.000”“To 2018-09-12 23:59:59.999”，即点击下方日历的“12”；“12”。“OK退出”
再来看，日志监控成功了
至此，ELK环境搭建完成，接下来就是使用了。