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80 lines
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46 KiB
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.sout{border-bottom-style:solid;border-bottom-width:.08em}body{margin:0;padding:0}.markdown-body{min-width:256px;max-width:978px;margin:0 auto;padding:20px;font-size:14px}.markdown-body h1{font-size:2.25em}.markdown-body h2{font-size:1.75em}.markdown-body h3{font-size:1.5em}.markdown-body h4{font-size:1.25em}.markdown-body h5,.markdown-body h6{font-size:1em}div.mermaid svg{height:auto}hr.footnotes-sep{margin:64px 0 32px;height:1px}.footnotes{font-size:90%;padding-left:16px}li.footnote-item>p{margin:8px 0}.danger,.info,.success,.warning{padding:15px;margin-bottom:20px;border:1px solid transparent;border-radius:4px}.danger>p:last-child,.info>p:last-child,.success>p:last-child,.warning>p:last-child{margin-bottom:0}.success{color:#3c763d;background-color:#dff0d8;border-color:#d6e9c6}.info{color:#31708f;background-color:#d9edf7;border-color:#bce8f1}.warning{color:#8a6d3b;background-color:#fcf8e3;border-color:#faebcc}.danger{color:#a94442;background-color:#f2dede;border-color:#ebccd1}abbr[title]{cursor:help;border-bottom:1px dotted #777}ul.table-of-contents li{margin:4px 0}.markdown-body table{border-spacing:0;border-collapse:collapse;width:auto;display:table;}.markdown-body table td,.markdown-body table th{word-break:break-all}</style></head><article class="markdown-body" id="preview" data-open-title="Hide Preview" data-closed-title="Show Preview" style="padding-bottom: 0px;"><div><ul data-source-line="1"><li>我们首先到ELK官网查找相关版本镜像地址<br><a href="https://www.docker.elastic.co/#" target="_blank">link</a><br>
|
||
现下载一个最新的版本</li></ul><ol data-source-line="4"><li>Elasticsearch : docker pull <a href="http://docker.elastic.co/elasticsearch/elasticsearch:6.4.2" target="_blank">docker.elastic.co/elasticsearch/elasticsearch:6.4.2</a></li><li>Logstash : docker pull <a href="http://docker.elastic.co/logstash/logstash:6.4.2" target="_blank">docker.elastic.co/logstash/logstash:6.4.2</a></li><li>Kibana : docker pull <a href="http://docker.elastic.co/kibana/kibana:6.4.2" target="_blank">docker.elastic.co/kibana/kibana:6.4.2</a></li></ol><ul data-source-line="8"><li>给下载好的镜像重新命名<br>
|
||
下载好的镜像名字太长了, 使用docker tag起个短点的,方便使用</li></ul><pre data-source-line="10"><code class="hljs">[root@localhost ~]# docker tag docker.elastic.co/logstash/logstash:6.4.2 logstash
|
||
[root@localhost ~]# docker tag docker.elastic.co/kibana/kibana:6.4.2 kibana
|
||
[root@localhost ~]# docker tag docker.elastic.co/elasticsearch/elasticsearch:6.4.2 elasticsearch
|
||
</code></pre><ul data-source-line="16"><li>安装ElasticSearch</li></ul><ol data-source-line="17"><li><a href="https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html" target="_blank">在elasticsearch的docker版本文档中</a>，提到了宿主机vm.max_map_count的值在生产环境最少要设置成262144。设置的方式有两种</li></ol><p data-source-line="19">① /etc/sysctl.conf文件中添加一行:</p><pre data-source-line="20"><code class="hljs">vm.max_map_count=262144
|
||
</code></pre><p data-source-line="23">② 正在运行的机器执行命令：</p><pre data-source-line="24"><code class="hljs">sysctl -w vm.max_map_count=262144
|
||
</code></pre><ol data-source-line="28" start="2"><li>禁用交换内存空间<br>
|
||
交换内存效率太低, 所以不建议使用<br>
|
||
①临时关闭交换内存的方法</li></ol><pre data-source-line="31"><code class="hljs">sudo swapoff -a
|
||
</code></pre><p data-source-line="34">②修改配置文件关闭交换内存<br>
|
||
在/etc/fstab文件中添加</p><pre data-source-line="36"><code class="hljs">vm.swappiness = 1
|
||
</code></pre><p data-source-line="39">为什么不设置为0 ? 因为设置为0在一些Linux版本中会自动杀掉一些进程</p><ol data-source-line="41" start="3"><li><p>创建ES数据存储目录<br>
|
||
使用docker运行的ES索引等数据默认是保存在docker容器内的, 我们需要把保存的数据目录挂载到宿主机上, 所以在宿主机上创建目录 <mark>/usr/share/elk/es/data</mark> , 注意该目录情况下ES容器是没有写权限的</p></li><li><p>创建ES配置文件<br>
|
||
创建 <mark>/usr/share/elk/es/config/elasticsearch.yml</mark>配置文件</p></li></ol><pre data-source-line="46"><code class="hljs"># <span class="zh-hans">集群名称</span>, ES<span class="zh-hans">是通过该名称区分不同的集群的</span>. <span class="zh-hans">所以同一个集群它们的名称必须一致</span>
|
||
cluster.name: "docker-cluster"
|
||
|
||
# 0.0.0.0<span class="zh-hans">表示向外网发布服务</span>, <span class="zh-hans">由于我们</span>docker<span class="zh-hans">使用</span>host<span class="zh-hans">网络模式</span>, <span class="zh-hans">建议设置为宿主机内网</span>IP
|
||
network.host: 0.0.0.0
|
||
|
||
# <span class="zh-hans">默认配置下</span>node.master<span class="zh-hans">和</span>node.data<span class="zh-hans">都是</span>true ,
|
||
# <span class="zh-hans">这意味着每个</span>ES<span class="zh-hans">节点都可以存储数据</span>, <span class="zh-hans">当</span>master<span class="zh-hans">节点宕机的时候每个</span>ES<span class="zh-hans">节点都可以竞选为</span>master<span class="zh-hans">节点</span>
|
||
# <span class="zh-hans">所以</span>, <span class="zh-hans">为了防止脑裂现象的出现</span>, ES<span class="zh-hans">集群需要设置一个值</span>, <span class="zh-hans">当候选主节点数少于该值的时候就不进行选举</span>
|
||
# <span class="zh-hans">例如我们集群中有</span>11<span class="zh-hans">个</span>(node.master<span class="zh-hans">和</span>node.data<span class="zh-hans">都是</span>false<span class="zh-hans">的节点除外</span>), <span class="zh-hans">那么可以设置为</span>6
|
||
# <span class="zh-hans">集群中的</span>ES<span class="zh-hans">节点数可能会经常改变</span>, <span class="zh-hans">该参数也是可以通过</span>RESTFul<span class="zh-hans">接口调整的</span>
|
||
# <span class="zh-hans">详细解释</span> https://www.elastic.co/guide/cn/elasticsearch/guide/current/important-configuration-changes.html#unicast
|
||
discovery.zen.minimum_master_nodes: 1
|
||
|
||
# <span class="zh-hans">设置单播模式</span>, <span class="zh-hans">根据不同的网络结构灵活设置</span>, <span class="zh-hans">不要都设置到一个机架或路由上</span>
|
||
discovery.zen.ping.unicast.hosts: ["10.211.55.9","10.211.55.10"]
|
||
</code></pre><ol data-source-line="65" start="5"><li>运行ES实例<br>
|
||
ES_HEAP_SIZE指定ElasticSearch堆内存大小默认值是1G, Lucene使用的是堆外内存, 假设某宿主机有32G内存且只跑一个ES, 建议ES_HEAP_SIZE设置为16G即可. ES_HEAP_SIZE最好不要超过32G否则这会关闭JVM指针压缩, 而且更大的堆内存意味着GC时要检查地方越多.</li></ol><pre data-source-line="67"><code class="hljs">docker run -d -p 9200:9200 -p 9300:9300 --name elasticsearch -e ES_HEAP_SIZE=2g --net=host \
|
||
-v /usr/share/elk/es/data:/usr/share/elasticsearch/data \
|
||
-v /usr/share/elk/es/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
|
||
elasticsearch
|
||
</code></pre><ul data-source-line="74"><li>安装Kibana</li></ul><ol data-source-line="76"><li>安装ES负载均衡实例<br>
|
||
为了提高ES集群的可用性, 我们可以创建一个专门用于做负载均衡的ES节点, 这个节点不会存储数据和选举master.<br>
|
||
我们的Logstash和Kibana配置的ELASTICSEARCH_URL可以直接配该节点的IP提升ES集群的灵活性.
|
||
<img alt="" src="https://note.youdao.com/yws/public/resource/1924520602572fd686d4c8dd52722b70/xmlnote/4BB1074B01414D3B82CC1E20B6D7BD22/19958"></li></ol><p data-source-line="81">根据上面ES搭建方式下在 <mark>/usr/share/elk/es/config/elasticsearch.yml</mark>配置文件中增加如下配置</p><pre data-source-line="82"><code class="hljs">node.master: false
|
||
node.data: false
|
||
</code></pre><p data-source-line="86">假设该负载均衡节点的IP为10.211.55.12, 之后在Kibana和Logstash中的ELASTICSEARCH_URL可以直接使用该IP, 同时若之后的集群再变大可再新增负载均衡节点, 使用并使用nginx做反向代理即可</p><ol data-source-line="88" start="2"><li>运行Kibana容器
|
||
由于index、Visualize、Dashboard等都是保存在ES中, 所以Kibana直接用默认的配置就行了, 注意修改自己ES的服务器IP</li></ol><pre data-source-line="91"><code class="hljs">docker run -d -p 5601:5601 --name kibana -e ELASTICSEARCH_URL=http://10.211.55.12:9200 --net=host kibana
|
||
</code></pre><ul data-source-line="96"><li>安装Logstash</li></ul><p data-source-line="98">logstash会发布9600端口, 外网环境注意屏蔽,下面是挂载的两个配置文件的具体配置<br>
|
||
①创建/usr/share/elk/logstash/pipeline/logstash.conf<br>
|
||
配置logstash的接收管道和发送管道, 我们以消费者的角色从kafka中消费log消息, 并将消息解析成json推送给elasticsearch</p><pre data-source-line="101"><code class="hljs">input {
|
||
kafka {
|
||
bootstrap_servers => "10.211.55.2:9092"
|
||
topics => ["mylogs1"]
|
||
type => "app"
|
||
codec => "json"
|
||
}
|
||
}
|
||
filter {
|
||
date {
|
||
match => [ "time", "UNIX_MS" ]
|
||
target => "time"
|
||
remove_field => "@version"
|
||
}
|
||
}
|
||
output {
|
||
if "_grokparsefailure" in [tags] {
|
||
}else{
|
||
if [type] == "app"{
|
||
elasticsearch {
|
||
hosts => ["10.211.55.12:9200"]
|
||
index => "logstash-%{type}-%{+YYYY.MM.dd}"
|
||
}
|
||
}
|
||
}
|
||
}
|
||
</code></pre><p data-source-line="129">②创建/usr/share/elk/logstash/config/logstash.yml<br>
|
||
配置logstash的监控地址, 将logstash的状态信息上传至elasticsearch中, 可以在Kibana的Monitoring中看到logstash的信息</p><pre data-source-line="131"><code class="hljs">http.host: "0.0.0.0"
|
||
xpack.monitoring.elasticsearch.url: ["http://10.211.55.12:9200"]
|
||
xpack.monitoring.elasticsearch.sniffing: true
|
||
xpack.monitoring.enabled: true
|
||
</code></pre><p data-source-line="138">运行logstash镜像</p><pre data-source-line="139"><code class="hljs">docker run -it --name logstash -d --net=host \
|
||
-v /usr/share/elk/logstash/pipeline/logstash.conf:/usr/share/logstash/pipeline/logstash.conf \
|
||
-v /usr/share/elk/logstash/config/logstash.yml:/usr/share/logstash/config/logstash.yml \
|
||
logstash
|
||
</code></pre></div></article><body></body></html> |