5分钟部署filebeat + ELK 5.1.1

标题有点噱头，不过网络环境好的情况下也差不多了^_^

1. 首先保证安装了jdk。

elasticsearch, logstash, kibana，filebeat都可以通过yum安装，这里前三者通过直接下载压缩包安装启动，filebeat通过yum安装。

2. 下载elasticsearch-5.1.1解压，配置

elasticsearch-5.1.1/conf/elasticsearch.yml

# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 0.0.0.0
#
# Set a custom port for HTTP:
#
http.port: 9200

启动（可以放到supervisor下监管）：

elasticsearch-5.1.1/bin/elasticsearch

注意： es启动要求提高一些系统参数配置，否则会报错

a. 增大vm.max_map_count到至少262144

sudo vim  /etc/sysctl.conf
添加  vm.max_map_count=262144
sudo sysctl -p

b. 增大文件句柄数至少 65536 ulimit -a查看

sudo vim /etc/security/limits.conf
* soft nofile 65536
* hard nofile 65536

2. 下载logstash5.1.1解压，配置

logstash-5.1.1/conf.d/pro-log.conf

input {
beats {
port => 5044
}
}

filter {
if [fields][logIndex] == "nginx" {
grok {
patterns_dir => "/home/elk/apps/logstash-5.1.1/patterns"
match => {
"message" => "%{NGINXACCESS}"
}
}
urldecode {
charset => "UTF-8"
field => "url"
}
if [upstreamtime] == "" or [upstreamtime] == "null" {
mutate {
update => { "upstreamtime" => "0" }
}
}
date {
match => ["logtime", "dd/MMM/yyyy:HH:mm:ss Z"]
target => "@timestamp"
}
mutate {
convert => {

"responsetime" => "float"
"upstreamtime" => "float"
"size" => "integer"
}
remove_field => ["port","logtime","message"]
}

}
}

output {
elasticsearch {
hosts => "{your-es-ip}:9200"
manage_template => false
index => "%{[fields][logIndex]}-%{+YYYY.MM.dd}"
document_type => "%{[fields][docType]}"
}

}

这里使用grok解析nginx日志

nginx日志格式：

log_format app_log_format '[$time_local] $server_addr $remote_addr $body_bytes_sent $request_time $upstream_response_time '
                        '$upstream_addr $upstream_status "$request_uri" "$http_x_forwarded_for" "$http_referer" "$http_user_agent" $status';

配置grok的自定义pattern（可以使用grok debugger工具进行验证 http://grokdebug.herokuapp.com/）：

vim logstash-5.1.1/patterns/nginx
NGINXACCESS [%{HTTPDATE:logtime}] %{IPORHOST:host} %{IPORHOST:remoteaddr} (?:%{NUMBER:size}|-) %{NUMBER:responsetime} (?:%{NUMBER:upstreamtime}|-) %{URIHOST:upstreamhost} %{BASE10NUM:upstreamstatus} %{QS:url} %{QS:clientip} %{QS:referrer} %{QS:agent} %{INT:status}

启动（可以放到supervisor下监管）：

logstash-5.1.1/bin/logstash -f logstash-5.1.1/conf.d/pro-log.conf

3. 安装filebeat，filebeat可以直接使用yum安装。

配置yum源：

vim  /etc/yum.repos.d/elastic5.repo
[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

安装

sodu yum install filebeat

配置（默认开始output到es，需要注释掉）

sudo vim /etc/filebeat/filebeat.yml

filebeat.prospectors:

# Each - is a prospector. Most options can be set at the prospector level, so
# you can use different prospectors for various configurations.
# Below are the prospector specific configurations.

- input_type: log

  # Paths that should be crawled and fetched. Glob based paths.
  paths:
    - /opt/nginx/logs/app.access.log
  fields:
    logIndex: nginx
    docType: nginx-access
    project: app-nginx
#----------------------------- Logstash output --------------------------------
output.logstash:
  # The Logstash hosts
  hosts: ["{your-logstash-ip}:5044"]

启动

sudo systemctl start filebeat

4. 下载kibana-5.1.1解压，配置

kibana-5.1.1/config/kibana.yml

server.port: 5601
server.host: 0.0.0.0
elasticsearch.url: "http://{your-es-ip}:9200"

启动（可以放到supervisor下监管）

kibana-5.1.1-linux-x86_64/bin/kibana

5. （选择性安装）安装x-pack，x-pack包含了security（需要用户名密码访问kibana）、watcher（监控报警）等插件

elasticsearch.5.1.1/bin/elasticsearch-plugin install x-pack （很慢，最好可以通过VPN安装，或者通过下载x-pack zip包，通过离线安装）

离线安装：

elasticsearch.5.1.1/bin/elasticsearch-plugin install file:///home/elk/apps/x-pack-5.1.1.zip
kibana-5.1.1/bin/kibana-plugin install file:///home/elk/apps/x-pack-5.1.1.zip

装完后，重启es，kibana生效。

不让某个插件生效，如不让security生效，则在es与kibana的配置里加入

xpack.security.enabled: false

最后贴两张kibana统计查询nginx日志得出的api调用次数，及平均响应时间图表。