利用Rsyslog向ElasticSearch推送nginx access日誌

1> 重新配置 nginx access 日誌格式爲 json 格式;

log_format ngx_accss_json '{ "@timestamp": "$time_iso8601", '
                         '"@fields": { '
                         '"remote_addr": "$remote_addr", '
                         '"server_name": "$server_name", '
                         '"server_port": "$server_port", '
                         '"scheme": "$scheme", '
                         '"server_protocol": "$server_protocol", '
                         '"body_bytes_sent": "$body_bytes_sent", '
                         '"request_time": "$request_time", '
                         '"status": "$status", '
                         '"request": "$request", '
                         '"uri": "$uri", '
                         '"request_method": "$request_method", '
                         '"http_referrer": "$http_referer", '
                         '"host": "$host", '
                         '"http_user_agent": "$http_user_agent" } }';


access_log syslog:server=127.0.0.1:514,facility=local7,tag=nginx,severity=info ngx_accss_json;

2> 配置 rsyslog 推送到ElasticSearch, 這裏我們啓用了 DA 模式;

# 原始消息已爲json格式
$template rawmsg,"%msg%"


# ElasticSearch 索引
template(name="nginx-index"
  type="list") {
    constant(value="nginx-")
    property(name="timereported" dateFormat="rfc3339" position.from="1" position.to="4")
    constant(value=".")
    property(name="timereported" dateFormat="rfc3339" position.from="6" position.to="7")
    constant(value=".")
    property(name="timereported" dateFormat="rfc3339" position.from="9" position.to="10")
}


# 
if $syslogfacility-text == "local7" and $syslogtag == "nginx:" then {
    local7.* action(
                type="omelasticsearch"
                template="rawmsg"
                searchIndex="nginx-index"
                dynSearchIndex="on"
                server="127.0.0.1"
                bulkmode="on"
                action.resumeretrycount="-1"
                queue.fileName="nginx_access"
                queue.maxDiskSpace="5g"
                queue.saveOnShutdown="on"
                )
    stop
}

3> 配置 Kibana 

注:

nginx  error_log 無法直接配置格式需修改代碼;