Linux日志对接Kibana如何进行配置与部署
本篇内容主要讲解“Linux日志对接Kibana如何进行配置与部署”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“Linux日志对接Kibana如何进行配置与部署”吧! 本篇内容主要讲解“Linux日志对接Kibana如何进行配置与部署”，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习“Linux日志对接Kibana如何进行配置与部署”吧!一，准备工作
1，CVM及ElasticSearch
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在腾讯云帐号下，申请一台CVM（Linux操作系统）、一个ElasticSearch集群（后面简称ES），使用最简配置即可；申请的CVM和ES，必须在同一个VPC的同一个子网下。
CVM详情信息
ElasticSearch详情信息2，Filebeat工具
为了将Linux日志提取到ES中，我们需要使用Filebeat工具。Filebeat是一个日志文件托运工具，在你的上安装客户端后，Filebeat会监控日志目录或者指定的日志文件，追踪读取这些文件（追踪文件的变化，不停的读），并且转发这些信息到ElasticSearch或者logstarsh中存放。当你开启Filebeat程序的时候，它会启动一个或多个探测器（prospectors）去检测你指定的日志目录或文件，对于探测器找出的每一个日志文件，Filebeat启动收割进程（harvester），每一个收割进程读取一个日志文件的新内容，并发送这些新的日志数据到处理程序（spooler），处理程序会集合这些事件，最后Filebeat会发送集合的数据到你指定的地点。
官网简介：https://www.elastic.co/products/beats/filebeat二，操作步骤1，Filebeat下载与安装
首先，登录待接管日志的CVM，在CVM上下载Filebeat工具：[root@VM_3_7_centos ~]# cd /opt/[root@VM_3_7_centos opt]# lltotal 4drwxr-xr-x. 2 root root 4096 Sep 7 2017 rh[root@VM_3_7_centos opt]# wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-6.2.2-x86_64.rpm--2018-12-10 20:24:26-- https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-6.2.2-x86_64.rpmResolving artifacts.elastic.co (artifacts.elastic.co)... 107.21.202.15, 107.21.127.184, 54.225.214.74, ...Connecting to artifacts.elastic.co (artifacts.elastic.co)|107.21.202.15|:443... connected.HTTP request sent, awaiting response... 200 OKLength: 12697788 (12M) [binary/octet-stream]Saving to: ‘filebeat-6.2.2-x86_64.rpm’100%[=================================================================================================>] 12,697,788 160KB/s in 1m 41s 2018-12-10 20:26:08 (123 KB/s) - ‘filebeat-6.2.2-x86_64.rpm’ saved [12697788/12697788]
然后，进行安装filebeat：[root@VM_3_7_centos opt]# rpm -vi filebeat-6.2.2-x86_64.rpmwarning: filebeat-6.2.2-x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID d88e42b4: NOKEYPreparing packages...filebeat-6.2.2-1.x86_64[root@VM_3_7_centos opt]#
至此，Filebeat安装完成。2，Filebeat配置
进入Filebeat配置文件目录：/etc/filebeat/[root@VM_3_7_centos opt]# cd /etc/filebeat/[root@VM_3_7_centos filebeat]# lltotal 108-rw-r--r-- 1 root root 44384 Feb 17 2018 fields.yml-rw-r----- 1 root root 52193 Feb 17 2018 filebeat.reference.yml-rw------- 1 root root 7264 Feb 17 2018 filebeat.ymldrwxr-xr-x 2 root root 4096 Dec 10 20:35 modules.d[root@VM_3_7_centos filebeat]#
其中，filebeat.yml就是我们需要修改的配置文件。建议修改配置前，先备份此文件。然后，确认需要对接ElasticSearch的Linux的日志目录，我们以下图（/var/log/secure
）为例。
/var/log/secure日志文件
使用vim打开/etc/filebeat/filebeat.yml文件，修改其中的：1）Filebeat prospectors类目中，enable默认为false，我们要改为
true2）paths，默认为/var/log/*.log，我们要改为待接管的日志路径：
/var/log/secure
3）Outputs类目中，有ElasticSearchoutput配置，其中hosts默认为"localhost:9200"，需要我们手工修改为上面申请的ES子网地址和端口，即**"10.0.3.8:9200"**。
修改好上述内容后，保存退出。
修改好的配置文件全文如下：[root@VM_3_7_centos /]# vim /etc/filebeat/filebeat.yml[root@VM_3_7_centos /]# cat /etc/filebeat/filebeat.yml###################### Filebeat Configuration Example ########################## This file is an example configuration file highlighting only the most common# options. The filebeat.reference.yml file from the same directory contains all the# supported options with more comments. You can use it as a reference.## You can find the full configuration reference here:# https://www.elastic.co/guide/en/beats/filebeat/index.html# For more available modules and options, please see the filebeat.reference.yml sample# configuration file.#=========================== Filebeat prospectors =============================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.- type: log # Change to true to enable this prospector configuration. enabled: true # Paths that should be crawled and fetched. Glob based paths. paths: - /var/log/secure #- c:\programdata\elasticsearch\logs\* # Exclude lines. A list of regular expressions to match. It drops the lines that are # matching any regular expression from the list. #exclude_lines: ['^DBG'] # Include lines. A list of regular expressions to match. It exports the lines that are # matching any regular expression from the list. #include_lines: ['^ERR', '^WARN'] # Exclude files. A list of regular expressions to match. Filebeat drops the files that # are matching any regular expression from the list. By default, no files are dropped. #exclude_files: ['.gz$'] # Optional additional fields. These fields can be freely picked # to add additional information to the crawled log files for filtering #fields: # level: debug # review: 1 ### Multiline options # Mutiline can be used for log messages spanning multiple lines. This is common # for Java Stack Traces or C-Line Continuation # The regexp Pattern that has to be matched. The example pattern matches all lines starting with [ #multiline.pattern: ^\[ # Defines if the pattern set under pattern should be negated or not. Default is false. #multiline.negate: false # Match can be set to "after" or "before". It is used to define if lines should be append to a pattern # that was (not) matched before or after or as long as a pattern is not matched based on negate. # Note: After is the equivalent to previous and before is the equivalent to to next in Logstash #multiline.match: after#============================= Filebeat modules ===============================filebeat.config.modules: # Glob pattern for configuration loading path: ${path.config}/modules.d/*.yml # Set to true to enable config reloading reload.enabled: false # Period on which files under path should be checked for changes #reload.period: 10s#==================== Elasticsearch template setting ==========================setup.template.settings: index.number_of_shards: 3 #index.codec: best_compression #_source.enabled: false#================================ General =====================================# The name of the shipper that publishes the network data. It can be used to group# all the transactions sent by a single shipper in the web interface.#name:# The tags of the shipper are included in their own field with each# transaction published.#tags: ["service-X", "web-tier"]# Optional fields that you can specify to add additional information to the# output.#fields:# env: staging#============================== Dashboards =====================================# These settings control loading the sample dashboards to the Kibana index. Loading# the dashboards is disabled by default and can be enabled either by setting the# options here, or by using the `-setup` CLI flag or the `setup` command.#setup.dashboards.enabled: false# The URL from where to download the dashboards archive. By default this URL# has a value which is computed based on the Beat name and version. For released# versions, this URL points to the dashboard archive on the artifacts.elastic.co# website.#setup.dashboards.url:#============================== Kibana =====================================# Starting with Beats version 6.0.0, the dashboards are loaded via the Kibana API.# This requires a Kibana endpoint configuration.setup.kibana: # Kibana Host # Scheme and port can be left out and will be set to the default (http and 5601) # In case you specify and additional path, the scheme is required: http://localhost:5601/path # IPv6 addresses should always be defined as: https://[2001:db8::1]:5601 #host: "localhost:5601"#============================= Elastic Cloud ==================================# These settings simplify using filebeat with the Elastic Cloud (https://cloud.elastic.co/).# The cloud.id setting overwrites the `output.elasticsearch.hosts` and# `setup.kibana.host` options.# You can find the `cloud.id` in the Elastic Cloud web UI.#cloud.id:# The cloud.auth setting overwrites the `output.elasticsearch.username` and# `output.elasticsearch.password` settings. The format is `
3，Kibana配置
进入ElasticSearch对应的Kibana管理页，如下图。
首次访问Kibana默认会显示管理页
首次登陆，会默认进入Management页面，我们需要将Index pattern内容修改为：filebeat-*，然后页面会自动填充**Time Filter field name，**不需手动设置，直接点击Create即可。点击Create后，页面需要一定时间来加载配置和数据，请稍等。如下图：
将Index pattern内容修改为：filebeat-*，然后点击Create
至此，CVM上，/var/log/secure日志文件，已对接到ElasticSearch中，历史日志可以通过Kibana进行查询，最新产生的日志也会实时同步到Kibana中。三，实战效果
日志接管已完成配置，如何使用呢？
如下图：
在Index Patterns中可以看到我们配置过的filebeat-*
点击Discover，即可看到secure中的所有日志，页面上方的搜索框中输入关键字，即可完成日志的检索。如下图（点击图片，可查看高清大图）：
使用Kibana进行日志检索
实际上，检索只是Kibana提供的诸多功能之一，还有其他功能如可视化、分词检索等，还有待后续研究。
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