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<article class="md-content__inner md-typeset">
<p>本章节主要描述微服务发布到华为公有云上。上云配置的基本原则是:只需要对microservice.yaml进行适当的配置,以及在pom中添加额外的依赖,就可以使用相关的功能。</p>
<h1 id="_1">一键式配置</h1>
<p>公有云版本提供了一键式简化配置的方式,让基于开源版本开发的应用快速切换为云上应用,直接使用公有云提供的灰度发布、服务治理等功能。</p>
<ul>
<li>增加依赖关系(pom.xml)</li>
</ul>
<pre><code class="language-xml">&lt;dependency&gt;
&lt;groupId&gt;com.huawei.paas.cse&lt;/groupId&gt;
&lt;artifactId&gt;cse-solution-service-engine&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>
<p>开发者只需要配置对cse-solution-service-engine依赖,就完成了公有云的所有配置。这个依赖关系主要给开发者做了如下事情:</p>
<ul>
<li>
<p>引入相关依赖的组件</p>
</li>
<li>
<p>增加默认配置项。默认配置包含了处理链、负载均衡策略等。</p>
</li>
</ul>
<p>可以通过查看pom内容,以及这个jar包里面的microservice.yaml文件查看引入的组件和增加的配置项。在下面的章节中,详细解释上云增加的组件以及他们的作用,让开发者更加深入的了解各种技术细节。</p>
<h2 id="_2">连接服务中心</h2>
<h3 id="_3">功能描述</h3>
<p>服务中心实现注册和发现,在FusionStage/ServiceStage查看微服务目录,都需要微服务连接上服务中心。</p>
<h3 id="_4">配置参考</h3>
<ul>
<li>增加依赖关系(pom.xml)</li>
</ul>
<p>如果连接服务中心使用https协议/AK/SK认证,该jar依赖必选。如果是http协议,并不包含token验证,则无需引入。</p>
<pre><code class="language-xml">&lt;dependency&gt;
&lt;groupId&gt;com.huawei.paas.cse&lt;/groupId&gt;
&lt;artifactId&gt;foundation-auth&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>
<ul>
<li>配置项(microservice.yaml)</li>
</ul>
<pre><code class="language-xml">servicecomb:
service:
registry:
address: https://servicecomb.cn-north-1.myhwclouds.com:443 #根据实际地址配置服务中心地址
</code></pre>
<p>该配置项配置了服务中心的地址。其中,address可以在公有云“工具和案例”目录下查到对应的服务中心地址,修改协议(http/https)、主机名(可能使用域名)和端口号。</p>
<h2 id="_5">连接配置中心</h2>
<h3 id="_6">功能描述</h3>
<p>配置中心实现配置下发,连接配置中心是使用治理、灰度发布等功能的前台。</p>
<h3 id="_7">配置参考</h3>
<ul>
<li>增加依赖关系(pom.xml)</li>
</ul>
<p>如果连接配置中心使用https协议/AK/SK认证,该jar依赖必选。如果是http协议,并不包含token验证,则无需引入。</p>
<pre><code class="language-xml">&lt;dependency&gt;
&lt;groupId&gt;com.huawei.paas.cse&lt;/groupId&gt;
&lt;artifactId&gt;foundation-auth&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>
<p>连接配置中心该jar必选</p>
<pre><code class="language-xml">&lt;dependency&gt;
&lt;groupId&gt;com.huawei.paas.cse&lt;/groupId&gt;
&lt;artifactId&gt;foundation-config-cc&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>
<ul>
<li>启用配置(microservice.yaml)</li>
</ul>
<pre><code class="language-yaml">servicecomb:
config:
client:
serverUri: https://servicecomb.cn-north-1.myhwclouds.com:443
</code></pre>
<p>该配置项配置了配置中心的地址。其中,address可以在公有云“工具和案例”目录下查到对应的配置中心地址,修改协议(http/https)、主机名(可能使用域名)和端口号。</p>
<h2 id="_8">使用服务治理</h2>
<h3 id="_9">功能描述</h3>
<p>服务治理主要涉及“隔离”、“熔断”、“容错”、“限流”、“负载均衡”等。</p>
<h3 id="_10">配置参考</h3>
<p>配置项(microservice.yaml)</p>
<p>需要增加下面治理相关的handler,才能在从配置中心实时获取治理数据。</p>
<pre><code class="language-yaml">servicecomb:
handler:
chain:
Provider:
default: bizkeeper-provider,qps-flowcontrol-provider
Consumer:
default: bizkeeper-consumer,loadbalance,qps-flowcontrol-consumer
</code></pre>
<h2 id="_11">使用故障注入</h2>
<h3 id="_12">功能描述</h3>
<p>故障注入主要提供了延时、错误两种类型故障。</p>
<h3 id="_13">配置参考</h3>
<p>配置项(microservice.yaml)</p>
<p>需要增加下面治理相关的handler。</p>
<pre><code class="language-yaml">servicecomb:
handler:
chain:
Consumer:
default: loadbalance,fault-injection-consumer
</code></pre>
<h2 id="_14">使用灰度发布</h2>
<h3 id="_15">功能描述</h3>
<p>该功能对应于微服务目录灰度发布功能。管理员可以通过下发规则,对服务进行灰度发布管理。</p>
<h3 id="_16">配置参考</h3>
<ul>
<li>增加依赖关系(pom.xml)</li>
</ul>
<p>引入必要的jar包。</p>
<pre><code class="language-xml">&lt;dependency&gt;
&lt;groupId&gt;com.huawei.paas.cse&lt;/groupId&gt;
&lt;artifactId&gt;cse-handler-cloud-extension&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>
<ul>
<li>在Consumer端配置负载均衡(microservice.yaml)</li>
</ul>
<p>在负载均衡模块启用了灰度发布的filter。</p>
<pre><code>servicecomb:
loadbalance:
serverListFilters: darklaunch
serverListFilter:
darklaunch:
className: com.huawei.paas.darklaunch.DarklaunchServerListFilter
</code></pre>
<h2 id="_17">使用调用链</h2>
<h3 id="_18">功能描述</h3>
<p>华为云提供了业务无侵入的埋点功能APM。只需要通过华为云部署容器应用,并选择启用调用链监控功能,即可使用调用链服务。</p>
<h2 id="_19">微服务运行数据上报</h2>
<h3 id="_20">功能描述</h3>
<p>微服务可以将自己的运行数据上报给Dashboard服务,在公有云上查看仪表盘数据、分布式事务数据等。该章节是描述如何启用微服务数据上报功能。</p>
<h3 id="_21">配置参考</h3>
<ul>
<li>增加依赖关系(pom.xml)</li>
</ul>
<p>引入必要的jar包。</p>
<pre><code>&lt;dependency&gt;
  &lt;groupId&gt;com.huawei.paas.cse&lt;/groupId&gt;
  &lt;artifactId&gt;cse-handler-cloud-extension&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>
<ul>
<li>配置handler</li>
</ul>
<p>仪表盘数据依赖于两个handler,一个bizkeeper-provider(客户端为bizkeeper-consumer),一个perf-stats,所以对应的pom依赖需要先引入。</p>
<pre><code>servicecomb:
handler:
chain:
Provider:
default: bizkeeper-provider,perf-stats,tracing-provider,sla-provider
Consumer:
default: bizkeeper-consumer,loadbalance,perf-stats,tracing-consumer,sla-consumer
</code></pre>
<ul>
<li>配置上报monitor地址</li>
</ul>
<p>TenantLB_ADDRESS为共有云租户管理面接入地址,默认是100.125.1.34。</p>
<pre><code>servicecomb:
service:
registry:
address: https://${TenantLB_ADDRESS}:30100
monitor:
client:
serverUri: https://${TenantLB_ADDRESS}:30109
</code></pre>
<h2 id="tcc">分布式事务: TCC</h2>
<h3 id="_22">功能描述</h3>
<p>主要实现基于TCC协议的分布式服务间的最终一致性方案,保障一般场景下的应用一致性需求,并可以在FusionStage/ServiceStage分布式事务界面查看事务详细信息。</p>
<h3 id="_23">配置参考</h3>
<ul>
<li>增加依赖关系(pom.xml)</li>
</ul>
<p>引入必要的jar包</p>
<pre><code>&lt;dependency&gt;
  &lt;groupId&gt;com.huawei.paas.cse&lt;/groupId&gt;
  &lt;artifactId&gt;cse-handler-tcc&lt;/artifactId&gt;
&lt;/dependency&gt;
</code></pre>
<ul>
<li>配置项参考</li>
</ul>
<p>需要增加下面事务相关的handler,才能在从配置中心实时获取治理数据。</p>
<pre><code>servicecomb:
handler:
chain:
Provider:
default: tcc-client,bizkeeper-provider
Consumer:
default: tcc-server,bizkeeper-consumer,loadbalance
</code></pre>
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