ElasticSearch
是一个高可用开源全文检索和分析组件。提供存储服务，搜索服务，大数据准实时分析等。一般用于提供一些提供复杂搜索的应。
我们为什么要选择 ElasticSearch ？
因为它是一个准实时的搜索工具，在一般情况下延时少于一秒，它还支持物理上的水平扩展 ，并拥有一套分布式协调的管理功能 操作比较简单 ，包括一些 restful 风格的API 等等，接下来我们就来进入今天的正题。
前期准备
1.安装 jdk1.8
yum install java
2.配置源
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch
配置elasticsearch
cat >/etc/yum.repos.d/elasticsearch.repo <<EOF
[elasticsearch-5.x]
name=Elasticsearch repository for 5.x packages
baseurl=https://artifacts.elastic.co/packages/5.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md
EOF
配置kibana
cat >/etc/yum.repos.d/kibana.repo << EOF
[kibana-5.x]
name=Kibana repository for 5.x packages
baseurl=https://artifacts.elastic.co/packages/5.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md
EOF
3.安装
yum install elasticsearch -y
yum install kibana -y
4.修改 es 配置文件
mkdir /data/es-data/logs -p
chown -R elasticsearch.elasticsearch /data/es-data/logs
[root@linux-node2 ~]# grep -v "^#" /etc/elasticsearch/elasticsearch.yml |grep -v "^$"
cluster.name: lx
node.name: linux-node2.lx.com
path.data: /data/es-data
path.logs: /data/es-data/logs
http.port: 9200
discovery.zen.ping.unicast.hosts: ["192.168.56.12", "192.168.56.14"]
discovery.zen.minimum_master_nodes: 1
5.修改内核参数
vim /etc/security/limits.conf
* soft nofile 655350
* hard nofile 655350
vim /etc/sysctl.conf
fs.file-max=655350
调整内存大小
cat /data/elasticsearch/config/jvm.options (可设置为物理内存的一半)
-Xms8g
-Xmx8g
sysctl -w vm.max_map_count=262144
6.修改 kibana 配置文件
[root@linux-node5 elasticsearch]# grep -v "^#" /etc/kibana/kibana.yml |grep -v "^$"
server.port: 5601
server.host: "0.0.0.0"
server.name: "lx"
elasticsearch.url: "http://192.168.56.14:9200"
elasticsearch.username: "elastic"
elasticsearch.password: "changeme"
7.x-pack 破解
编辑配置文件
cat LicenseVerifier.java
package org.elasticsearch.license;
import java.nio.*;
import java.util.*;
import java.security.*;
import org.elasticsearch.common.xcontent.*;
import org.apache.lucene.util.*;
import org.elasticsearch.common.io.*;
import java.io.*;
public class LicenseVerifier
{
public static boolean verifyLicense(final License license, final byte[] encryptedPublicKeyData) {
return true;
}
public static boolean verifyLicense(final License license) {
return true;
}
}
安装 java-devel
yum install java-devel -y
编译生成LicenseVerifier.class
javac -cp "/usr/share/elasticsearch/lib/elasticsearch-5.6.4.jar:/usr/share/elasticsearch/lib/lucene-core-6.6.1.jar:/usr/share/elasticsearch/plugins/x-pack/x-pack-5.6.4.jar" LicenseVerifier.java
查看生成的LicenseVerifier.class类文件
ll LicenseVerifier.class
替换class文件
cp /usr/share/elasticsearch/plugins/x-pack/x-pack-5.6.4.jar /tmp/test
cd /tmp/test
jar xvf x-pack-5.6.4.jar
cd /tmp/test/org/elasticsearch/license
rm LicenseVerifier.class -f
cp /root/LicenseVerifier.class /tmp/test/org/elasticsearch/license/ #拷贝上文编译生成的java类文件
jar cvf x-pack-5.6.4.jar /tmp/test/* #压缩
\cp /tmp/test/x-pack-5.6.4.jar /usr/share/elasticsearch/plugins/x-pack/ #拷贝到原来的x-pack目录
注意 ：x-pack-5.6.4.jar 应该拷贝到 两个 elasticsearch 集群插件，即目录 /usr/share/elasticsearch/plugins/x-pack/
重启 es 集群
systemct restart elasticsearch
获取 license 证书
https://license.elastic.co/registration
通过填写的邮件获取官方发来的邮件获取证书
cat li-xiang-d28260d9-6c96-4dd2-92dc-2f14a9787903-v5.json
{"license":{"uid":"d28260d9-6c96-4dd2-92dc-2f14a9787903","type":"platinum","issue_date_in_millis":1511740800000,"expiry_date_in_millis":1827359999000,"max_nodes":100,"issued_to":"li xiang (ceshi)","issuer":"Web Form","signature":"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","start_date_in_millis":1511740800000}}
此证书的时间为1年使用时间，你可以通过下面网站进行换算
http://tool.chinaz.com/Tools/unixtime.aspx
目前我申请了一个10 年的时间
将 "type":"basic" 替换为 "type":"platinum" # 基础班变更为铂金版
将 "expiry_date_in_millis":1543363199999 替换为 "expiry_date_in_millis":1827359999000 # 1年变为10年
查看当前的 license
curl -XGET -u elastic:changeme 'http://127.0.0.1:9200/_license'
{
"license" : {
"status" : "active",
"uid" : "21389992-4010-4d2c-917b-94b4e3d5a1dc",
"type" : "trial",
"issue_date" : "2017-11-27T05:12:27.999Z",
"issue_date_in_millis" : 1511759547999,
"expiry_date" : "2017-12-27T05:12:27.999Z",
"expiry_date_in_millis" : 1514351547999,
"max_nodes" : 1000,
"issued_to" : "lx",
"issuer" : "elasticsearch",
"start_date_in_millis" : -1
}
}
替换 license
curl -XPUT -u elastic:changeme 'http://127.0.0.1:9200/_xpack/license?acknowledge=true' -d @li-xiang-d28260d9-6c96-4dd2-92dc-2f14a9787903-v5.json
重启 es 集群
systemctl restart elasticsearch
查看license
[root@linux-node5 license]# curl -XGET -u elastic:changeme 'http://127.0.0.1:9200/_license'
{
"license" : {
"status" : "active",
"uid" : "d28260d9-6c96-4dd2-92dc-2f14a9787903",
"type" : "platinum",
"issue_date" : "2017-11-27T00:00:00.000Z",
"issue_date_in_millis" : 1511740800000,
"expiry_date" : "2027-11-27T23:59:59.000Z",
"expiry_date_in_millis" : 1827359999000,
"max_nodes" : 100,
"issued_to" : "li xiang (ceshi)",
"issuer" : "Web Form",
"start_date_in_millis" : 1511740800000
}
}
配置 X- Pack 告警
本文配置 X- Pack告警是通过 filebeat 收集 Nginx 的日志来做的模拟
配置邮件报警
1.安装 Nginx
2.给 Nginx 配置 json 格式的数据
log_format json '{"@timestamp":"$time_iso8601",'
'"@version":"1",'
'"client":"$remote_addr",'
'"url":"$uri",'
'"status":"$status",'
'"domain":"$host",'
'"host":"$server_addr",'
'"size":$body_bytes_sent,'
'"responsetime":$request_time,'
'"referer": "$http_referer",'
'"ua": "$http_user_agent"'
'}';
access_log logs/access.log json;
3.安装 filebeta
安装
yum install -y filebeta
配置filebeta
[root@linux-node4 filebeat]# grep -v "^ #" filebeat.yml|grep -v "^$"|grep -v "^#"
filebeat.prospectors:
- input_type: log
paths:
- /usr/local/nginx/logs/access.log
json.keys_under_root: true
json.overwrite_keys: true
output.elasticsearch:
hosts: ["localhost:9200"]
username: "elastic"
password: "changeme"
参考网址:https://www.elastic.co/guide/en/beats/filebeat/current/configuration-filebeat-options.html#config-json
http://www.iyunw.cn/archives/filebeat-shou-ji-json-ge-shi-de-nginx-ri-zhi-fa-song-gei-elasticsearch/
启动filebeta服务
systemctl status filebeat.service
这里默认进入 es 的索引是 filebeat-{%}
4.登陆 kibana 添加索引
5.模拟一些 404的页面，让其展示
for i in {1..1000};do curl http://192.168.56.14:/lx-0$i;sleep 1;done
6.添加报警触发器(收集每分钟内超过访问状态大于 400 且个数超过 20 报警)
Watch JSON
{
"trigger": {
"schedule": {
"interval": "1m"
}
},
"input": {
"search": {
"request": {
"search_type": "query_then_fetch",
"indices": [
"filebeat-2017*"
],
"types": [],
"body": {
"size": 0,
"query": {
"bool": {
"must": [
{
"query_string": {
"query": "status:>=400"
}
},
{
"range": {
"@timestamp": {
"gte": "now-1m"
}
}
}
]
}
},
"sort": [
{
"@timestamp": {
"order": "desc"
}
}
]
}
}
}
},
"condition": {
"compare": {
"ctx.payload.hits.total": {
"gt": 20
}
}
},
"actions": {
"elasticsearch": {
"throttle_period_in_millis": 60000,
"email": {
"profile": "outlook",
"attachments": {
"attached_data": {
"data": {
"format": "json"
}
}
},
"priority": "high",
"to": [
"lixiang@xxxxx.com"
],
"subject": "Nginx {{ctx.payload.hits.total}} errors",
"body": {
"text": "nginx 404 错误过多,请注意查看"
}
}
}
}
}
7.这一步特别重要需要在 ES 配置文件设置否则无法报警(因为我公司使用的是 Exchange 客户端)
xpack.notification.email.account:
exchange_account:
profile: outlook
email_defaults:
from: warning@xxxxx.com
smtp:
auth: true
starttls.enable: true
host: smtp.partner.outlook.cn
port: 587
user: 123@xxxxxx.com
password: 233g@123
参考网址：https://www.elastic.co/guide/en/x-pack/5.6/actions-email.html #邮件设置
- 查看邮件报警状态以及 kibana 中的状态
对于上面的内容大家可以参看下面的 url 来了解其中的含义
参考网址:
https://www.elastic.co/guide/en/x-pack/5.6/xpack-alerting.html 对集群和索引事件的警告 Xpack document
配置Webhook报警
对于 webhook 的报警,我们需要前期做一下工作需要了解一个东西web.py,具体 URL 链接大家可以访问这个地方
http://webpy.org/tutorial3.zh-cn#starting
1.用 web.py 启动一个 webhook 的监听
[root@linux-node5 ~]# cat webhooks.py
#!/usr/bin/evn python
# -*- coding:utf-8 -*-
import web
import os
import demjson
import sys
reload(sys)
sys.setdefaultencoding( "utf-8" )
urls = (
'/log_event_watch','abc',
)
class abc:
def POST(self):
data = web.data()
print data
cmd = '''curl -G -v "http://abc.com/abc/" --data "user=lixiang" --data "media=all" --data-urlencode "subject=test" --data-urlencode "message=%s"''' %(data)
os.system(cmd)
if __name__ == "__main__":
app = web.application(urls, globals())
app.run()
运行 python webhooks.py 9000
注意 ： urls，因为我的 Watcher ID 为 "log_event_watch"
2.再次回到我们的 kibana 界面,
"Management"->"Edit"
查看 Watches
08.png
查看 Wathch Json 内容
{
"trigger": {
"schedule": {
"interval": "1m"
}
},
"input": {
"search": {
"request": {
"search_type": "query_then_fetch",
"indices": [
"nginx_access*"
],
"types": [],
"body": {
"size": 0,
"query": {
"bool": {
"must": [
{
"query_string": {
"query": "status:>=400"
}
},
{
"range": {
"@timestamp": {
"gte": "now-1m"
}
}
}
]
}
},
"sort": [
{
"@timestamp": {
"order": "desc"
}
}
]
}
}
}
},
"condition": {
"compare": {
"ctx.payload.hits.total": {
"gt": 5
}
}
},
"actions": {
"email": {
"throttle_period_in_millis": 60000,
"email": {
"profile": "outlook",
"attachments": {
"attached_data": {
"data": {
"format": "json"
}
}
},
"priority": "high",
"to": [
"lixiang@xxxxx.com"
],
"subject": "Nginx {{ctx.payload.hits.total}} errors",
"body": {
"text": "nginx 404 错误过多,请注意查看"
}
}
},
"webhook": {
"condition": {
"compare": {
"ctx.payload.hits.total": {
"gt": 5
}
}
},
"webhook": {
"scheme": "http",
"host": "192.168.56.15",
"port": 9000,
"method": "post",
"path": "/{{watch_id}}",
"params": {},
"headers": {},
"body": "Encountered {{ctx.payload.hits.total}} errors"
}
}
}
}
3.模拟触发报警
for i in {1..200};do curl http://192.168.56.14:/lx-0$i;sleep 2;done
4.查看结果，这里就不贴出来了(微信，短信，邮件都能收到报警)
5.这就是实现报警消息附带 URL 地址
官方参考网址:
https://www.elastic.co/guide/en/x-pack/5.6/watcher-getting-started.html
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今晚九点|基于 Ansible API 的任务管理平台
主讲师：panda
前 douban 运维工程师，目前就职于创业公司。引入 douban 的运维平台思想，完成公司的自动化运维平台开发和建设。对运维工程师转运维研发的困惑和痛点深有感触，乐于分享自己转型中的五味杂陈。
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