Logstash

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Logstash是一个开源的日志管理工具。

项目地址：http://logstash.net/

Logstash安装使用以下组件：

Logstash
Elasticsearch
Redis
Nginx
Kibana

服务端：

fqdn: dev.kanbier.lan (should be resolvable!)
ip: 10.37.129.8

安装所需的软件

作者更喜欢使用RPM包来安装软件，要注意版本号，不要去追求时髦用最新的最伟大的，Elasticsearch的版本应该匹配Logstash的版本。

$ vi/etc/yum.repos.d/logstash.repo
[logstash-1.4]
name=logstash repository for1.4.x packages
baseurl=http://packages.elasticsearch.org/logstash/1.4/centos
gpgcheck=1
gpgkey=http://packages.elasticsearch.org/GPG-KEY-elasticsearch
enabled=1
 
$ vi/etc/yum.repos.d/elasticsearch.repo
[elasticsearch-1.0]
name=Elasticsearch repository for1.0.x packages
baseurl=http://packages.elasticsearch.org/elasticsearch/1.0/centos
gpgcheck=1
gpgkey=http://packages.elasticsearch.org/GPG-KEY-elasticsearch
enabled=1
 
$ vi/etc/yum.repos.d/nginx.repo
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=0
enabled=1
 
$ rpm -Uvh http://mirror.1000mbps.com/fedora-epel/6/i386/epel-release-6-8.noarch.rpm
 
$ yum -y installelasticsearch redis nginx logstash

启用Kibana

$ wget https://download.elasticsearch.org/kibana/kibana/kibana-3.0.0.tar.gz
$ tar-xvzf kibana-3.0.0.tar.gz
$ mvkibana-3.0.0 /usr/share/kibana3

我们需要告诉Kibana在哪里可以找到elasticsearch。打开配置文件并修改elasticsearch参数：

$ vi/usr/share/kibana3/config.js

搜索“elasticsearch”参数，并对其进行修改以适应您的环境：

elasticsearch: "http://dev.kanbier.lan:9200",

您还可以修改default_route参数，默认打开logstash仪表板而不是Kibana欢迎页面：

default_route : '/dashboard/file/logstash.json',

通过web界面访问：

$ wget https://raw.github.com/elasticsearch/kibana/master/sample/nginx.conf
$ mvnginx.conf /etc/nginx/conf.d/
$ vi/etc/nginx/conf.d/nginx.conf
server_name           dev.kanbier.lan;

nginx配置如下：

#
# Nginx proxy for Elasticsearch + Kibana
#
# In this setup, we are password protecting the saving of dashboards. You may
# wish to extend the password protection to all paths.
#
# Even though these paths are being called as the result of an ajax request, the
# browser will prompt for a username/password on the first request
#
# If you use this, you'll want to point config.js at http://FQDN:80/ instead of
# http://FQDN:9200
#
server {
  listen                *:80 ;
 
  server_name           kibana.myhost.org;
  access_log            /var/log/nginx/kibana.myhost.org.access.log;
 
  location / {
    root  /usr/share/kibana3;
    index  index.html  index.htm;
  }
 
  location ~ ^/_aliases$ {
    proxy_pass http://127.0.0.1:9200;
    proxy_read_timeout 90;
  }
  location ~ ^/.*/_aliases$ {
    proxy_pass http://127.0.0.1:9200;
    proxy_read_timeout 90;
  }
  location ~ ^/_nodes$ {
    proxy_pass http://127.0.0.1:9200;
    proxy_read_timeout 90;
  }
  location ~ ^/.*/_search$ {
    proxy_pass http://127.0.0.1:9200;
    proxy_read_timeout 90;
  }
  location ~ ^/.*/_mapping {
    proxy_pass http://127.0.0.1:9200;
    proxy_read_timeout 90;
  }
 
  # Password protected end points
  location ~ ^/kibana-int/dashboard/.*$ {
    proxy_pass http://127.0.0.1:9200;
    proxy_read_timeout 90;
    limit_except GET {
      proxy_pass http://127.0.0.1:9200;
      auth_basic"Restricted";
      auth_basic_user_file /etc/nginx/conf.d/kibana.myhost.org.htpasswd;
    }
  }
  location ~ ^/kibana-int/temp.*$ {
    proxy_pass http://127.0.0.1:9200;
    proxy_read_timeout 90;
    limit_except GET {
      proxy_pass http://127.0.0.1:9200;
      auth_basic"Restricted";
      auth_basic_user_file /etc/nginx/conf.d/kibana.myhost.org.htpasswd;
    }
  }
}

配置redis

$ vi/etc/redis.conf
bind 10.37.129.8

配置Logstash

可以使用Logstash文档上的logstash-complex.conf文件，并不是很负责，包含：

从 /var/log目录读取文件
打开5544端口以启用直接接收远程系统日志消息
告诉logstash，利用本身的elasticsearch而不是嵌入的

$ vi /etc/logstash/conf.d/logstash-complex.conf
input {
  file {
    type => "syslog"
  
    # Wildcards work, here <img src="http://www.denniskanbier.nl/blog/wp-includes/images/smilies/icon_smile.gif"alt=":)" class="wp-smiley">
    path => ["/var/log/*.log", "/var/log/messages","/var/log/syslog" ]
    sincedb_path =>"/opt/logstash/sincedb-access"
  }
  redis {
    host => "10.37.129.8"
    type => "redis-input"
    data_type =>"list"
    key => "logstash"
  }
  syslog {
    type => "syslog"
    port => "5544"
  }
}
  
filter {
  grok {
    type => "syslog"
    match => ["message", "%{SYSLOGBASE2}"]
    add_tag => ["syslog", "grokked"]
  }
}
  
output {
 elasticsearch { host =>"dev.kanbier.lan" }
}

启动服务

$ service redis start; chkconfig redis on
$ service elasticsearch start; chkconfig --add elasticsearch; chkconfig elasticsearch on
$ service logstash start; chkconfig logstash on
$ service nginx start; chkconfig nginx on

对于rsyslog现在你可以将这些行添加到/ etc/ rsyslog.conf

# ### begin forwarding rule ###
# The statement between the begin ... end define a SINGLE forwarding
# rule. They belong together, do NOT split them. If you create multiple
# forwarding rules, duplicate the whole block!
# Remote Logging (we use TCP for reliable delivery)
#
# An on-disk queue is created for this action. If the remote host is
# down, messages are spooled to disk and sent when it is up again.
$WorkDirectory /var/lib/rsyslog # where to place spool files
$ActionQueueFileName fwdRule1 # unique name prefix for spool files
$ActionQueueMaxDiskSpace 1g # 1gb space limit (use as much as possible)
$ActionQueueSaveOnShutdown on # save messages to disk on shutdown
$ActionQueueType LinkedList # run asynchronously
$ActionResumeRetryCount -1 # infinite retries if host is down
# remote host is: name/ip:port, e.g. 192.168.0.1:514, port optional
*.* @@10.37.129.8:5544
# ### end of the forwarding rule ###

如果有防火墙需要放开这些端口：

port 80 (for the web interface)
port 5544 (to receive remote syslog messages)
port 6379 (for the redis broker)
port 9200 (so the web interface can access elasticsearch)

Elasticsearch

译自：http://www.denniskanbier.nl/blog/logging/installing-logstash-on-rhel-and-centos-6

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