搭建ELK收集Nginx日志
众所周知,ELK是日志收集套装,这里就不多做介绍了。
画了一个粗略的架构图,如下:
这里实际用了三个节点,系统版本为CentOS6.6,ES版本为2.3.5,logstash版本为2.4.0,kibana版本为4.5.4-1,nginx版本为1.8.1。
192.168.3.56 ES01+logstash01+kibana+redis+nginx
192.168.3.49 ES02+logstash02
192.168.3.57 ES03
1、为三个节点安装java环境
# yum install -y java java-1.8.0-openjdk-devel
# vim /etc/profile.d/java.sh
export JAVA_HOME=/usr
# source /etc/profile.d/java.sh
2、三节点同步时间
# ntpdate pool.ntp.org
3、安装elasticsearch集群,配置集群很简单,三节点保持集群名称相同即可,rpm包是提前在官网下载的
节点1,ES01:
# yum install -y elasticsearch-2.3.5.rpm
# vim /etc/elasticsearch/elasticsearch.yml
cluster.name: oupenges
node.name: es01
network.host: 192.168.3.56
discovery.zen.ping.unicast.hosts: ["192.168.3.56", "192.168.3.49", "192.168.3.57"]
节点2,ES02:
# yum install -y elasticsearch-2.3.5.rpm
# vim /etc/elasticsearch/elasticsearch.yml
cluster.name: oupenges
node.name: es02
network.host: 192.168.3.49
discovery.zen.ping.unicast.hosts: ["192.168.3.56", "192.168.3.49", "192.168.3.57"]
节点3,ES03:
# yum install -y elasticsearch-2.3.5.rpm
# vim /etc/elasticsearch/elasticsearch.yml
cluster.name: oupenges
node.name: es03
network.host: 192.168.3.57
discovery.zen.ping.unicast.hosts: ["192.168.3.56", "192.168.3.49", "192.168.3.57"]
启动服务:
# service elasticsearch start
# chkconfig elasticsearch on
通过cluster API查看集群状态:
# curl -XGET 'http://192.168.3.56:9200/_cluster/health?pretty=true'
{
"cluster_name" : "oupenges",
"status" : "green",
"timed_out" : false,
"number_of_nodes" : 3,
"number_of_data_nodes" : 3,
"active_primary_shards" : 56,
"active_shards" : 112,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 0,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 0,
"active_shards_percent_as_number" : 100.0
}
4、为ES三个节点安装head插件
# /usr/share/elasticsearch/bin/plugin install mobz/elasticsearch-head
用浏览器访问head:
这个是我装完所有组件之后的状态,后面装完之后就不再贴head图了。
星形代表master
圆形代表slave
5、在节点1上安装logstash01
# yum install logstash-2.4.0.noarch.rpm
命令行验证logstash:
标准输入 --> 标准输出
# /opt/logstash/bin/logstash -e "input {stdin{}} output{stdout{ codec=>"rubydebug"}}"
Settings: Default pipeline workers: 12
Pipeline main started
hello
{
"message" => "hello",
"@version" => "1",
"@timestamp" => "2017-06-20T03:09:21.113Z",
"host" => "uy-s-167"
}
标准输入 --> elasticsearch
# /opt/logstash/bin/logstash -e 'input {stdin{}} output{ elasticsearch { hosts => ["192.168.3.56:9200"] index => "test"}}'
Settings: Default pipeline workers: 12
Pipeline main started
hello
hi opera
从时间和内容可以看出,红色框的两条是我刚才添加的两条信息。
6、安装kibana
# yum install -y kibana-4.5.4-1.x86_64.rpm
# vim /opt/kibana/config/kibana.yml
elasticsearch.url: "http://192.168.3.56:9200"
# service kibana start
# chkconfig kibana on
用浏览器访问 http://192.168.3.56:5601
7、安装redis
# yum install -y redis
# vim /etc/redis.conf
daemonize yes
bind 192.168.3.56
appendonly yes
# service redis start
# chkconfig redis on
8、安装Nginx,使用nginx代理kibanna,并设置添加身份验证
# wget http://nginx.org/download/nginx-1.8.1.tar.gz
# tar xvf nginx-1.8.1.tar.gz
# yum groupinstall -y "Development tools"
# cd nginx-1.8.1/
# ./configure --prefix=/usr/local/nginx --sbin-path=/usr/local/nginx/sbin/nginx --conf-path=/usr/local/nginx/conf/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx/nginx.pid --lock-path=/var/lock/nginx.lock --user=nginx --group=nginx --with-http_ssl_module --with-http_stub_status_module --with-http_gzip_static_module --http-client-body-temp-path=/var/tmp/nginx/client/ --http-proxy-temp-path=/var/tmp/nginx/proxy/ --http-fastcgi-temp-path=/var/tmp/nginx/fcgi/ --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi --http-scgi-temp-path=/var/tmp/nginx/scgi --with-pcre
# mkdir -pv /var/tmp/nginx/client/
# /usr/local/nginx/sbin/nginx
# vim /usr/local/nginx/conf/nginx.conf 在http段添加一个server段
server {
listen 8080;
server_name 192.168.3.56; #当前主机名
auth_basic "Restricted Access";
auth_basic_user_file /usr/local/nginx/conf/htpasswd.users; #身份验证
location / {
proxy_pass http://192.168.3.56:5601; #代理到kibana
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
# yum install -y httpd-tools
# htpasswd -bc /usr/local/nginx/conf/htpasswd.users admin admin
# cat /usr/local/nginx/conf/htpasswd.users
admin:TvypNSDg6V3Rc
# /usr/local/nginx/sbin/nginx -t
# /usr/local/nginx/sbin/nginx -s reload
9、将Nginx的日志格式转换为json格式
# vim /usr/local/nginx/conf/nginx.conf
log_format access1 '{"@timestamp":"$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",'
'"domain":"$host",'
'"xff":"$http_x_forwarded_for",'
'"referer":"$http_referer",'
'"status":"$status"}';
access_log /var/log/nginx/access.log access1;
# /usr/local/nginx/sbin/nginx -t
# /usr/local/nginx/sbin/nginx -s reload
10、在需要收集日志也就是nginx server上安装filebeat
# yum install -y filebeat-1.2.3-x86_64.rpm
# mv /etc/filebeat/filebeat.yml /etc/filebeat/filebeat.yml.bak
# vim /etc/filebeat/filebeat.yml
filebeat:
prospectors:
-
paths:
- /var/log/messages
input_type: log
document_type: nginxs1-system-message
-
paths:
- /var/log/nginx/access.log
input_type: log
document_type: nginxs1-access-log
registry_file: /var/lib/filebeat/registry
output:
logstash:
hosts: ["192.168.3.56:5044"]
file:
path: "/tmp/"
filename: filebeat.txt
shipper:
logging:
to_files: true
files:
path: /tmp/mybeat
# service filebeat start
# chkconfig filebeat on
11、配置logstash01接收filebeat发出的日志,并输出到redis
# vim /etc/logstash/conf.d/nginx.conf
input {
beats {
port => 5044
codec => "json"
}}
output {
if [type] == "nginxs1-system-message" {
redis {
data_type => "list"
key => "nginxs1-system-message"
host => "192.168.3.56"
port => "6379"
db => "0"
}}
if [type] == "nginxs1-access-log" {
redis {
data_type => "list"
key => "nginxs1-access-log"
host => "192.168.3.56"
port => "6379"
db => "0"
}}
file {
path => "/tmp/nginx-%{+YYYY-MM-dd}messages.gz"
}
}
# /etc/init.d/logstash configtest
# service logstash restart
12、在节点2上安装logstash02
# yum install logstash-2.4.0.noarch.rpm
13、配置logstash02从redis读取日志,并输出到elasticsearch中
# vim /etc/logstash/conf.d/redis-to-es.conf
input {
redis {
host => "192.168.3.56"
port => "6379"
db => "0"
key => "nginxs1-system-message"
data_type => "list"
batch_count => 1
}
redis {
host => "192.168.3.56"
port => "6379"
db => "0"
key => "nginxs1-access-log"
data_type => "list"
codec => "json"
batch_count => 1
}
}
output {
if [type] == "nginxs1-system-message" {
elasticsearch {
hosts => ["192.168.3.56:9200"]
index => "nginxs1-system-message-%{+YYYY.MM.dd}"
manage_template => true
flush_size => 2000
idle_flush_time => 10 }}
if [type] == "nginxs1-access-log" {
elasticsearch {
hosts => ["192.168.3.56:9200"]
index => "logstash-nginxs1-access-log-%{+YYYY.MM.dd}"
manage_template => true
flush_size => 2000
idle_flush_time => 10 }}
}
14、登录配置kibana
配置完成后,就可以在Discover中看到nginx的日志了。
在Visualize里面可以画各种图,这里就不细说了。
展示一个我画的很简单的Dashboard: