此系列文章将会描述Java框架Spring Boot、服务治理框架Dubbo、应用容器引擎Docker，及使用Spring Boot集成Dubbo、Mybatis等开源框架，其中穿插着Spring Boot中日志切面等技术的实现，然后通过gitlab-CI以持续集成为Docker镜像。
本文为Logstash Nginx 日志上报
本系列文章中所使用的框架版本为Spring Boot 2.0.3-RELEASE，Spring 5.0.7-RELEASE，Dubbo 2.6.2。
Nginx 日志上报
Nginx 日志上报采用filebeat，需在服务器安装相关版本的filebeat并配置日志路径即可
Nginx 日志格式
Nginx access log日志格式
log_format access '$proxy_add_x_forwarded_for - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" [ $request_body ] - "$request_time" - "$host"';
Logstash 日志处理
相关插件详见微服务框架（二十八）Logstash 使用文档
Nginx 日志索引为nginx-*，该索引将自动适配es中自定义的索引模板
input{
beats {
host => "172.16.7.7"
port => "5044"
add_field => ["log_channel", "nginx"]
}
}
filter {
if [log_channel] == "nginx" {
grok {
match => {
"message" => "%{DATA:forwarded_for} - %{DATA:remote_user} \[%{DATA:request_time}\] \"%{WORD:method} %{URIPATHPARAM:uri} %{DATA:http_version}\" %{INT:http_status} %{INT:body_byte} \"%{PROG:http_referer}\" \"%{DATA:user_agent}\" \[ %{DATA:request_body}\ ] - \"%{BASE10NUM:spend_time}\" - \"%{DATA:request_host}\""
}
}
mutate {
convert => {
"http_status" => "integer"
"spend_time" => "float"
"body_byte" => "integer"
}
}
mutate {
split => ["forwarded_for",","]
add_field => ["request_ip", "%{[forwarded_for][0]}"]
remove_field => ["tags", "forwarded_for"]
}
geoip {
source => "request_ip"
remove_field => ["tags", "[geoip][latitude]", "[geoip][longitude]", "[geoip][continent_code]", "[geoip][country_code3]", "[geoip][country_code2]"]
}
mutate {
add_field => {
"[@metadata][index_prefix]" => "nginx"
}
}
}
}
output {
elasticsearch {
hosts => ["localhost:9200"]
index => "%{[@metadata][index_prefix]}-%{+YYYY.MM.dd}"
}
}
