ELK课程-Day2

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input 我们要采集的日志文件路径, 收割机 harvester 监听文件的变化 -->
splooer程序 --> 转发 es | logstash | kafka | redis

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filebeat.inputs:
  - type: stdin #标准输入
    enabled: true #启用
output.console: #标准输出
  pretty: true
  enable: true

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#将文件最新发生变化的内容,存入ES
[root@web01 ~]# cat /etc/filebeat/file.yml
filebeat.inputs:
  - type: log
  paths: /var/log/nginx/access.log
  enabled: true
output.elasticsearch:
  hosts:
["10.0.0.161:9200","10.0.0.162:9200","10.0.0.163:9200"]

收集系统日志

特别分散--> syslog --> file.txt
1.减少无用的数据
2.调整索引名称
3.测试调整模板,设定分片

[root@web01 ~]# cat /etc/filebeat/filebeat.yml
filebeat.inputs:
  - type: log
  enabled: true
  paths:
    - /var/log/oldxu.log
  include_lines: ['^ERR', '^WARN', 'sshd'] #只看指定的
日志
output.elasticsearch:
  hosts:
["10.0.0.161:9200","10.0.0.162:9200","10.0.0.163:9200"]
index: "system-%{[agent.version]}-%{+yyyy.MM.dd}"
setup.ilm.enabled: false
setup.template.name: system #索引关联的模板名称
setup.template.pattern: system-*
方式一:
###设定system模板的分片数和副本数
#setup.template.settings: #定义索引分片数和副本
# index.number_of_shards: 3
# index.number_of_replicas: 1
方式二:
"number_of_routing_shards": "30",
"number_of_shards": "10",
"number_of_replicas": "1",
1.修改system模板 ---> 添加 shards 分片数数
量,replicas的数量
2.删除模板关联的索引
3.删除filebeat自行指定的分片数和副本数
4.重启filebeat
5.产生新的日志

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收集Nginx

log_format json '{ "time_local": "$time_local", '
'"remote_addr":
"$remote_addr", '
'"referer": "$http_referer",
'
'"request": "$request", '
'"status": $status, '
'"bytes": $body_bytes_sent, '
'"agent": "$http_user_agent",
'
'"x_forwarded":
"$http_x_forwarded_for", '
'"up_addr":
"$upstream_addr",'
'"up_host":
"$upstream_http_host",'
'"upstream_time":
"$upstream_response_time",'
'"request_time":
"$request_time"'
'}';
access_log /var/log/nginx/access.log json;

配置filebeat

[root@web01 filebeat]# cat /etc/filebeat/filebeat.yml
filebeat.inputs:
- type: log
  enabled: true
  paths:
    - /var/log/nginx/access.log
  json.keys_under_root: true #默认Flase，还会将json解析
的日志存储至messages字段
  json.overwrite_keys: true #覆盖默认的key，使用自定义
json格式的key
output.elasticsearch:
  hosts:
["10.0.0.161:9200","10.0.0.162:9200","10.0.0.163:9200"]
index: "nginx-%{[agent.version]}-%{+yyyy.MM.dd}"

setup.ilm.enabled: false
setup.template.name: nginx #索引关联的模板名称
setup.template.pattern: nginx-*

收集nginx访问日志和错误日志

[root@web01 filebeat]# cat filebeat.yml
filebeat.inputs:
- type: log
  enabled: true
  paths:
    - /var/log/nginx/access.log
    json.keys_under_root: true #默认Flase，还会将json解析
的日志存储至messages字段
    json.overwrite_keys: true #覆盖默认的key，使用自定义
json格式的key
  tags: ["access"]
- type: log
  enabled: true
  paths:
    - /var/log/nginx/error.log
  tags: ["error"]

output.elasticsearch:
  hosts:
["10.0.0.161:9200","10.0.0.162:9200","10.0.0.163:9200"]
indices:
    - index: "nginx-access-%{[agent.version]}-%
{+yyyy.MM.dd}"
when.contains:
tags: "access"
    - index: "nginx-error-%{[agent.version]}-%
{+yyyy.MM.dd}"
when.contains:
tags: "error"

setup.ilm.enabled: false
setup.template.name: nginx #索引关联的模板名称
setup.template.pattern: nginx-*

收集nginx多个虚拟主机的日志

elk.oldxu.com
bk.oldxu.com
bs.oldxu.com
error日志

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1.虚拟主机

[root@web01 conf.d]# cat elk.oldxu.com.conf
server {
  listen 80;
  server_name elk.oldxu.com;
  root /code/elk;
  access_log /var/log/nginx/elk.oldxu.com.log  json;
  location / {
    index index.html;
}
}
[root@web01 conf.d]# cat bs.oldxu.com.conf
server {
  listen 80;
  server_name bs.oldxu.com;
  root /code/bs;
  access_log /var/log/nginx/bs.oldxu.com.log json;
  location / {
    index index.html;
  }
}
[root@web01 conf.d]# cat bk.oldxu.com.conf
server {
  listen 80;
  server_name bk.oldxu.com;
  root /code/bk;
  access_log /var/log/nginx/bk.oldxu.com.log json;
  location / {
    index index.html;
  }
}

2.测试,模拟产生日志

[root@web01 conf.d]# curl -H Host:elk.oldxu.com
http://10.0.0.7
elk.oldux.com
[root@web01 conf.d]# curl -H Host:bs.oldxu.com
http://10.0.0.7
bs.oldux.com
[root@web01 conf.d]# curl -H Host:bk.oldxu.com
http://10.0.0.7
bk.oldux.com

3.配置filebeat

[root@web01 filebeat]# cat /etc/filebeat/filebeat.yml
filebeat.inputs:
- type: log
  enabled: true
  paths:
    - /var/log/nginx/elk.oldxu.com.log
  json.keys_under_root: true
  json.overwrite_keys: true
  tags: ["nginx-elk-host"]

- type: log
  enabled: true
  paths:
    - /var/log/nginx/bs.oldxu.com.log
  json.keys_under_root: true
  json.overwrite_keys: true
  tags: ["nginx-bs-host"]

- type: log
  enabled: true
  paths:
    - /var/log/nginx/bk.oldxu.com.log
  json.keys_under_root: true
  json.overwrite_keys: true
  tags: ["nginx-bk-host"]

- type: log
  enabled: true
  paths:
    - /var/log/nginx/error.log
  tags: ["nginx-error"]

output.elasticsearch:
  hosts:
["10.0.0.161:9200","10.0.0.162:9200","10.0.0.163:9200"]
  indices:
    - index: "nginx-elk-access-%{[agent.version]}-%
{+yyyy.MM.dd}"
      when.contains:
        tags: "nginx-elk-host"
    - index: "nginx-bs-access-%{[agent.version]}-%
{+yyyy.MM.dd}"
        when.contains:
          tags: "nginx-bs-host"
    - index: "nginx-bk-access-%{[agent.version]}-%
{+yyyy.MM.dd}"
      when.contains:
        tags: "nginx-bk-host"

    - index: "nginx-error-%{[agent.version]}-%
{+yyyy.MM.dd}"
      when.contains:
        tags: "nginx-error"

setup.ilm.enabled: false
setup.template.name: nginx #索引关联的模板名称
setup.template.pattern: nginx-*

Tomcat日志

访问日志 ---> json格式

#1.修改tomcat日志格式
[root@web02 soft]# yum install java -y
[root@web02 soft]# vim tomcat/conf/server.xml

配置filebeat

[root@web02 filebeat]# cat /etc/filebeat/filebeat.yml
filebeat.inputs:
- type: log
  enabled: true
  paths:
    - /soft/tomcat/logs/tomcat.oldxu.com.log.*.txt
  json.keys_under_root: true #默认Flase，还会将json解析
的日志存储至messages字段
  json.overwrite_keys: true #覆盖默认的key，使用自定义
json格式的key

output.elasticsearch:
    hosts: ["10.0.0.161:9200","10.0.0.162:9200"]
    index: "tomcat-access-%{[agent.version]}-%
{+yyyy.MM.dd}"

setup.ilm.enabled: false
setup.template.name: tomcat #索引关联的模板名称
setup.template.pattern: tomcat-*

错误日志 <--java

[root@web02 filebeat]# cat filebeat.yml
filebeat.inputs:
- type: log
  enabled: true
  paths:
    - /soft/tomcat/logs/tomcat.oldxu.com.log.*.txt
  json.keys_under_root: true #默认Flase，还会将json解析
的日志存储至messages字段
  json.overwrite_keys: true #覆盖默认的key，使用自定义
json格式的key
  tags: ["tomcat-access"]

- type: log
  enabled: true
    paths:
      - /soft/tomcat/logs/catalina.out

  multiline.pattern: '^\d{2}' #匹配以2个数字开头的
  multiline.negate: true
  multiline.match: after
  multiline.max_lines: 10000 #默认最大合并行为500，可根
据实际情况调整。
  tags: ["tomcat-error"]

output.elasticsearch:
  hosts: ["10.0.0.161:9200","10.0.0.162:9200"]
  indices:
    - index: "tomcat-access-%{[agent.version]}-%
{+yyyy.MM.dd}"
      when.contains:
        tags: "tomcat-access"

    - index: "tomcat-error-%{[agent.version]}-%
{+yyyy.MM.dd}"
      when.contains:
        tags: "tomcat-error"

setup.ilm.enabled: false
setup.template.name: tomcat #索引关联的模板名称
setup.template.pattern: tomcat-*