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| <div class="page__inner-wrap"> |
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| <header> |
| <h1 class="page__title" itemprop="headline">环境配置 |
| </h1> |
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| <section class="page__content" itemprop="text"> |
| <aside class="sidebar__right"> |
| <nav class="toc"> |
| <!-- <header><h4 class="nav__title"><i class="fa fa-file-text"></i> 在本页上</h4></header> --> |
| <ul class="toc__menu" id="markdown-toc"> |
| <li><a href="#安装java开发环境" id="markdown-toc-安装java开发环境">安装Java开发环境</a></li> |
| <li><a href="#运行-service-center" id="markdown-toc-运行-service-center">运行 Service Center</a> <ul> |
| <li><a href="#运行-stand-alone-service-center" id="markdown-toc-运行-stand-alone-service-center">运行 Stand-alone Service Center</a></li> |
| <li><a href="#运行-service-center-集群" id="markdown-toc-运行-service-center-集群">运行 Service Center 集群</a></li> |
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| <h2 id="安装java开发环境">安装Java开发环境</h2> |
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| <p>安装git，详情可参考<a href="https://git-scm.com/book/zh/v2/%E8%B5%B7%E6%AD%A5-%E5%AE%89%E8%A3%85-Git">git安装教程</a></p> |
| </li> |
| <li> |
| <p>安装JDK 1.8，详情可参考<a href="https://docs.oracle.com/javase/8/docs/technotes/guides/install/install_overview.html" target="_blank">JDK安装教程</a>。</p> |
| </li> |
| <li> |
| <p>安装Maven 3.x，详情可参考<a href="https://maven.apache.org/install.html" target="_blank">Maven安装教程</a>。</p> |
| </li> |
| <li> |
| <p>安装IntelliJ Idea IDE，详情可参考<a href="https://www.jetbrains.com/help/idea/installing-and-launching.html" target="_blank">IntelliJ安装教程</a>。</p> |
| </li> |
| </ul> |
| |
| <h2 id="运行-service-center">运行 Service Center</h2> |
| <h3 id="运行-stand-alone-service-center">运行 Stand-alone Service Center</h3> |
| <p>运行Stand-alone Service Center有以下两种方式:</p> |
| |
| <ol> |
| <li> |
| <p>以可执行文件的方式运行</p> |
| |
| <ul class="nav nav-tabs"> |
| <li data-toggle="tab" class="active"><a data-toggle="tab" href="#windows">Windows</a></li> |
| <li data-toggle="tab"><a data-toggle="tab" href="#linux">Linux</a></li> |
| </ul> |
| |
| <div class="tab-content"> |
| <div id="windows" class="tab-pane active"> |
| <ol> |
| <li>下载<a href="http://apache.org/dyn/closer.cgi/incubator/servicecomb/incubator-servicecomb-service-center/1.0.0-m2/apache-servicecomb-incubating-service-center-1.0.0-m2-windows-amd64.tar.gz">服务注册中心可执行文件压缩包</a></li> |
| <li>解压缩到当前文件夹</li> |
| <li>进入解压缩后的目录，然后双击运行<strong>start-service-center.bat</strong>文件</li> |
| </ol> |
| </div> |
| <div id="linux" class="tab-pane fade"> |
| <ol> |
| <li>下载服务注册中心可执行文件压缩包并解压缩 |
| <div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code>wget http://apache.org/dyn/closer.cgi/incubator/servicecomb/incubator-servicecomb-service-center/1.0.0-m2/apache-servicecomb-incubating-service-center-1.0.0-m2-linux-amd64.tar.gz |
| <span class="nb">tar </span>xvf apache-servicecomb-incubating-service-center-1.0.0-m2-linux-amd64.tar.gz |
| </code></pre></div> </div> |
| </li> |
| <li>运行服务注册中心 |
| <div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code>bash apache-servicecomb-incubating-service-center-1.0.0-m2-linux-amd64/start-service-center.sh |
| </code></pre></div> </div> |
| </li> |
| </ol> |
| |
| <p class="notice--warning">注意：前端（frontend）在Linux环境下默认会绑定ipv6地址，导致浏览器报错，修复办法为：先修改conf/app.conf中的httpaddr为外部可达网卡ip，之后修改app/appList/apiList.js中<code class="language-plaintext highlighter-rouge">ip : 'http://127.0.0.1'</code>为对应ip，最后重启ServiceCenter即可。</p> |
| |
| </div> |
| </div> |
| |
| <p class="notice--warning">注意：Window和Linux版本均只支持64位系统。</p> |
| </li> |
| <li> |
| <p>以Docker的方式运行</p> |
| </li> |
| </ol> |
| |
| <div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code>docker pull servicecomb/service-center |
| docker run <span class="nt">-d</span> <span class="nt">-p</span> 30100:30100 servicecomb/service-center:latest |
| </code></pre></div></div> |
| |
| <p class="notice--warning"><strong>注意事项：</strong> 服务注册中心运行后绑定的IP为：<em>http://127.0.0.1:30100</em>。<br /> |
| 如使用Docker Toolbox，可通过 <code class="language-plaintext highlighter-rouge">docker-machine ip</code> 获取服务绑定IP地址。</p> |
| |
| <h3 id="运行-service-center-集群">运行 Service Center 集群</h3> |
| <p>Service Center是一个无状态的应用因此它很容易以集群的模式部署提供HA。</p> |
| |
| <p>它依赖<a href="https://github.com/coreos/etcd">etcd</a>存储微服务的信息，etcd既支持standalone模式运行也支持<a href="https://coreos.com/etcd/docs/latest/op-guide/clustering.html">集群模式</a>运行。</p> |
| |
| <p>提示：我们强烈推荐etcd以集群模式运行，这样才能从整体上保证Service Center的HA能力；另外在这篇<a href="https://coreos.com/etcd/docs/latest/op-guide/runtime-configuration.html">文档</a>中我们可以了解到etcd需要部署至少三个节点才能够避免Majority Failure。</p> |
| |
| <p>部署了standalone或集群etcd后，你可以按下面的步骤部署Service Center集群，我们以在两台VM上各部署一个Service Center实例为例：</p> |
| |
| <table> |
| <thead> |
| <tr> |
| <th style="text-align: center">Name</th> |
| <th style="text-align: center">Address</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr> |
| <td style="text-align: center">VM1</td> |
| <td style="text-align: center">10.12.0.1</td> |
| </tr> |
| <tr> |
| <td style="text-align: center">VM2</td> |
| <td style="text-align: center">10.12.0.2</td> |
| </tr> |
| </tbody> |
| </table> |
| |
| <p>我们假定你的etcd运行在http://10.12.0.4:2379 上：</p> |
| |
| <h5 id="第一步">第一步</h5> |
| <p>在所有的VM上从<a href="https://github.com/apache/servicecomb-service-center/releases">ServiceComb官网</a>下载最新版本的Service Center并解压：</p> |
| |
| <div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nb">tar</span> <span class="nt">-xvf</span> service-center-X.X.X-linux-amd64.tar.gz |
| </code></pre></div></div> |
| |
| <p>提示：请不要按stand-alone提示的方式执行start-service-center.sh，因为这样会启动内置的etcd。</p> |
| |
| <h5 id="第二步">第二步</h5> |
| <p>编辑ServcieComb的配置文件，修改ip/port以及etcd地址：</p> |
| <h6 id="vm1">VM1</h6> |
| <div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code>vi conf/app.conf |
| </code></pre></div></div> |
| |
| <p>修改下面的配置 :</p> |
| <div class="language-text highlighter-rouge"><div class="highlight"><pre class="highlight"><code>httpaddr = 10.12.0.1 |
| manager_cluster = "10.12.0.4:2379" |
| </code></pre></div></div> |
| |
| <p>然后启动Service Center :</p> |
| <div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code>./service-center |
| </code></pre></div></div> |
| |
| <h6 id="vm2">VM2</h6> |
| <div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code>vi conf/app.conf |
| </code></pre></div></div> |
| |
| <p>修改下面的配置 :</p> |
| <div class="language-text highlighter-rouge"><div class="highlight"><pre class="highlight"><code>httpaddr = 10.12.0.2 |
| manager_cluster = "10.12.0.4:2379" |
| </code></pre></div></div> |
| |
| <p>然后启动Service Center :</p> |
| <div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code>./service-center |
| </code></pre></div></div> |
| |
| <p>提示：在<code class="language-plaintext highlighter-rouge">manger_cluster</code>配置中你可以填写多个在etcd群集中的etcd实例地址：</p> |
| <div class="language-plaintext highlighter-rouge"><div class="highlight"><pre class="highlight"><code>manager_cluster= "10.12.0.4:2379,10.12.0.X:2379,10.12.0.X:2379" |
| </code></pre></div></div> |
| |
| <h5 id="第三步">第三步</h5> |
| <p>验证你部署完毕的Service Center实例 :</p> |
| <div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code>curl http://10.12.0.1:30101/v4/default/registry/health |
| </code></pre></div></div> |
| <p>将会返回下面的内容 :</p> |
| <div class="language-json highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="p">{</span><span class="w"> |
| </span><span class="nl">"instances"</span><span class="p">:</span><span class="w"> </span><span class="p">[</span><span class="w"> |
| </span><span class="p">{</span><span class="w"> |
| </span><span class="nl">"instanceId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"d6e9e976f9df11e7a72b286ed488ff9f"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"serviceId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"d6e99f4cf9df11e7a72b286ed488ff9f"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"endpoints"</span><span class="p">:</span><span class="w"> </span><span class="p">[</span><span class="w"> |
| </span><span class="s2">"rest://10.12.0.1:30100"</span><span class="w"> |
| </span><span class="p">],</span><span class="w"> |
| </span><span class="nl">"hostName"</span><span class="p">:</span><span class="w"> </span><span class="s2">"service_center_10_12_0_1"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"status"</span><span class="p">:</span><span class="w"> </span><span class="s2">"UP"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"healthCheck"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="nl">"mode"</span><span class="p">:</span><span class="w"> </span><span class="s2">"push"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"interval"</span><span class="p">:</span><span class="w"> </span><span class="mi">30</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"times"</span><span class="p">:</span><span class="w"> </span><span class="mi">3</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="nl">"timestamp"</span><span class="p">:</span><span class="w"> </span><span class="s2">"1516012543"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"modTimestamp"</span><span class="p">:</span><span class="w"> </span><span class="s2">"1516012543"</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="p">{</span><span class="w"> |
| </span><span class="nl">"instanceId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"16d4cb35f9e011e7a58a286ed488ff9f"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"serviceId"</span><span class="p">:</span><span class="w"> </span><span class="s2">"d6e99f4cf9df11e7a72b286ed488ff9f"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"endpoints"</span><span class="p">:</span><span class="w"> </span><span class="p">[</span><span class="w"> |
| </span><span class="s2">"rest://10.12.0.2:30100"</span><span class="w"> |
| </span><span class="p">],</span><span class="w"> |
| </span><span class="nl">"hostName"</span><span class="p">:</span><span class="w"> </span><span class="s2">"service_center_10_12_0_2"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"status"</span><span class="p">:</span><span class="w"> </span><span class="s2">"UP"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"healthCheck"</span><span class="p">:</span><span class="w"> </span><span class="p">{</span><span class="w"> |
| </span><span class="nl">"mode"</span><span class="p">:</span><span class="w"> </span><span class="s2">"push"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"interval"</span><span class="p">:</span><span class="w"> </span><span class="mi">30</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"times"</span><span class="p">:</span><span class="w"> </span><span class="mi">3</span><span class="w"> |
| </span><span class="p">},</span><span class="w"> |
| </span><span class="nl">"timestamp"</span><span class="p">:</span><span class="w"> </span><span class="s2">"1516012650"</span><span class="p">,</span><span class="w"> |
| </span><span class="nl">"modTimestamp"</span><span class="p">:</span><span class="w"> </span><span class="s2">"1516012650"</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span><span class="p">]</span><span class="w"> |
| </span><span class="p">}</span><span class="w"> |
| </span></code></pre></div></div> |
| |
| <p>我们可以看到Service Center能够自动发现所有正在集群中运行的实例，<a href="https://github.com/apache/servicecomb-java-chassis">Java-Chassis SDK</a>将使用这个特性至少找到一个Service Center实例。</p> |
| |
| <p>在你的microservice.yaml中你可以填写一个或多个Service Center实例，如果<a href="https://github.com/apache/servicecomb-java-chassis">Java-Chassis SDK</a>发现配置的第一个地址（实例）失败，它将会自动使用下一个地址（实例）：</p> |
| <div class="language-yaml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="na">servicecomb</span><span class="pi">:</span> |
| <span class="na">service</span><span class="pi">:</span> |
| <span class="na">registry</span><span class="pi">:</span> |
| <span class="na">address</span><span class="pi">:</span> <span class="s2">"</span><span class="s">http://10.12.0.1:30100,http://10.12.0.2:30100"</span> |
| <span class="na">autodiscovery</span><span class="pi">:</span> <span class="no">true</span> |
| </code></pre></div></div> |
| <p>上面的例子里包含了我们已经配置好的两个Service Center实例。</p> |
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