1、采用拓扑:
角色扮演:
Agent:采用logstash,IP:192.168.10.7
Redis队列: IP:192.168.10.100
Indexer:logstash,IP:192.168.10.205
Es+kibana:放在192.168.10.100(大的日志环境可以单独存放)
说明:下面是一台日志服务器下面nginx的日志格式
log_format backend '$http_x_forwarded_for [$time_local] '
'"$host" "$request" $status $body_bytes_sent '
'"$http_referer" "$http_user_agent"'
1、192.168.10.7上面agnet的配置:
[luohui@BJ-huasuan-h-web-07 ~]$ cat /home/luohui/logstash-5.0.0/etc/logstash-nginx.conf
input {
file {
path => ["/home/data/logs/access.log"]
type => "nginx_access"
}
}
output {
if [type] == "nginx_access"{
redis {
host => ["192.168.10.100:6379"]
data_type =>"list"
key => "nginx"
}
}
}
##说明:这里的agent只是做日志发送,对性能影响不大,读取access.log日志文件,并且发送到远端redis。
2、192.168.10.205:indexer的配置:
[root@mail etc]# cat logstash_nginx.conf
input {
redis {
host => "192.168.10.100"
port => 6379
data_type => "list"
key => "nginx"
}
}
filter {
grok {
match =>
{"message" => "%{IPORHOST:clientip} \[%{HTTPDATE:timestamp}\] %{NOTSPACE:http_name} \"(?:%{WORD:verb} %{NOTSPACE:request}(?: HTTP/%{NUMBER:httpversion})?|%{DATA:rawrequest})\" %{NUMBER:response} (?:%{NUMBER:bytes:float}|-) %{QS:referrer} %{QS:agent}"
}
}
date {
match => [ "timestamp" , "dd/MMM/YYYY:HH:mm:ss Z" ]
}
geoip {
source => "clientip"
target => "geoip"
database => "/test/logstash-5.0.0/GeoLite2-City.mmdb"
add_field => [ "[geoip][coordinates]", "%{[geoip][longitude]}" ]
add_field => [ "[geoip][coordinates]", "%{[geoip][latitude]}" ]
}
mutate {
convert => [ "[geoip][coordinates]", "float"]
}
}
output {
elasticsearch {
action => "index"
hosts =>"192.168.10.100:9200"
index => "logstash-nginx-%{+yyyy.MM.dd}"
}
}
##说明:这里接收来自:redis的数据key为nginx的。然后进行正则匹配筛选数据。
Geoip调用我们本地下载的库,在linux版本下现在用:GeoLite2-City.mmdb,可以去网上下载。
备注:基本上操作的也就是logstash的相关操作,其他都是傻瓜安装。但是记得要启动elastic监听端口,启动redis监听端口。最后面启动logstash倒入数据。
这个比较简单,调用city库之后,选择Tile map即可:
这里是kibana带的地图,可以看到是英文的城市名之类的,我们改成高德地图,显示中文城市名。
3、修改kibana.yml添加如下URL:
tilemap.url: "http://webrd02.is.autonavi.com/appmaptilelang=zh_cn&size=1&scale=1&style=8&x={x}&y={y}&z={z}"
4、重启kibana即可得到如下图形:
5、到这里已经差不多完成了。然后还有剩下的相关图表。大家熟悉kibana自己做聚合运算即可。
6、有一些nginx喜欢用如下的默认格式:
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
7、可以用如下的grok,默认一些正则表达式logstash已经提供,我们可以如下地址去查看:
vendor/bundle/jruby/1.9/gems/logstash-patterns-core-4.0.2/patterns
8、我们切换到这个目录下,创建相关的正则:
[root@controller logstash-5.0.0]# cd vendor/bundle/jruby/1.9/gems/logstash-patterns-core-4.0.2/patterns[root@controller patterns]# cat nginx
NGUSERNAME [a-zA-Z\.\@\-\+_%]+
NGUSER %{NGUSERNAME}
NGINXACCESS %{IPORHOST:clientip} - %{NGUSER:remote_user} \[%{HTTPDATE:timestamp}\] \"(?:%{WORD:verb} %{NOTSPACE:request}(?: HTTP/%{NUMBER:httpversion})?|%{DATA:rawrequest})\" %{NUMBER:response} (?:%{NUMBER:bytes:float}|-) %{QS:referrer} %{QS:agent} %{NOTSPACE:http_x_forwarded_for} %{NUMBER:request_time:float}
9、直接调用即可:
###到处已经可以手工了,剩下就是采集数据kibana聚合出图的事情。
[root@controller etc]# cat nginx.conf
input {
redis {
host => "192.168.10.100"
port => 6379
data_type => "list"
key => "nginx"
}
}
filter {
grok {
match => { "message" => "%{NGINXACCESS}" }
}
date {
match => [ "timestamp" , "dd/MMM/YYYY:HH:mm:ss Z" ]
}
geoip {
source => "clientip"
target => "geoip"
database => "/test/logstash-5.0.0/GeoLite2-City.mmdb"
add_field => [ "[geoip][coordinates]", "%{[geoip][longitude]}" ]
add_field => [ "[geoip][coordinates]", "%{[geoip][latitude]}" ]
}
mutate {
convert => [ "[geoip][coordinates]", "float"]
}
}
output {
stdout{codec=>rubydebug}
elasticsearch {
action => "index"
hosts => "192.168.63.235:9200"
index => "logstash-nginx-%{+yyyy.MM.dd}"
}
}
10、可以完善的,就是nginx我们可以再生成数据的时候以json的格式生成,这样就不用grok去解析这么消耗CPU了:
log_format json '{"@timestamp":"$time_iso8601",'
'"host":"$server_addr",'
'"clientip":"$remote_addr",'
'"size":$body_bytes_sent,'
'"responsetime":$request_time,'
'"upstreamtime":"$upstream_response_time",'
'"upstreamhost":"$upstream_addr",'
'"http_host":"$host",'
'"url":"$uri",'
'"xff":"$http_x_forwarded_for",'
'"referer":"$http_referer",'
'"agent":"$http_user_agent",'
'"status":"$status"}';
access_log /etc/nginx/logs/access_nginx.json json;
11、这样就省去了很多解析的部分,直接用json格式解析即可。
[root@controller logstash-5.0.0]# cat etc/nginx_json.conf
input {
file { #从nginx日志读入
type => "nginx-access"
path => "/etc/nginx/logs/access_nginx.json"
start_position => "beginning"
codec => "json" #这里指定codec格式为json
}
}
filter {
if [type] == "nginx-access"{
geoip {
source => "clientip"
target => "geoip"
database => "/test/logstash-5.0.0/GeoLite2-City.mmdb"
add_field => [ "[geoip][coordinates]", "%{[geoip][longitude]}" ]
add_field => [ "[geoip][coordinates]", "%{[geoip][latitude]}" ]
}
}
}
output {
if [type] == "nginx-access" {
stdout{codec=>rubydebug}
elasticsearch {
action => "index"
hosts => "192.168.63.235:9200"
index => "mysql-slow-%{+yyyy.MM.dd}"
}
}
}
清爽好多,手工。注意GeoLite2-City.mmdb用这个库,我之前用bat这个。是出不来图的
ELK相关课程:日志分析之 ELK stack 实战
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