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<h1>configMapGenerator</h1>
<div class="lead">生成 ConfigMap 资源.</div>
<p>列表中的每个条目都将生成一个 ConfigMap (合计可以生成 n 个 ConfigMap</p>
<p>以下示例创建四个 ConfigMap</p>
<ul>
<li>第一个使用给定文件的名称和内容创建数据</li>
<li>第二个使用文件中的键/值对将数据创建为键/值</li>
<li>第三个使用 <code>literals</code> 中的键/值对创建数据作为键/值</li>
<li>第四个通过 <code>options</code> 设置单个 ConfigMap 的注释和标签</li>
</ul>
<p>每个 configMapGenerator 项均接受的参数 <code>behavior: [create|replace|merge]</code>,这个参数允许修改或替换父级现有的 configMap。</p>
<p>此外,每个条目都有一个 <code>options</code> 字段,该字段具有与 kustomization 文件的 <code>generatorOptions</code> 字段相同的子字段。</p>
<p><code>options</code> 字段允许用户为生成的实例添加标签和(或)注释,或者分别禁用该实例名称的哈希后缀。此处添加的标签和注释不会被 kustomization 文件 <code>generatorOptions</code> 字段关联的全局选项覆盖。但是如果全局 <code>generatorOptions</code> 字段指定 <code>disableNameSuffixHash: true</code>,其他 <code>options</code> 的设置将无法将其覆盖。</p>
<div class="highlight"><pre style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#204a87;font-weight:bold">apiVersion</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>kustomize.config.k8s.io/v1beta1<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">kind</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>Kustomization<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#8f5902;font-style:italic"># 这个标签将添加到所有的 ConfigMap 和 Secret 中。</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">generatorOptions</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">labels</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">fruit</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>apple<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">configMapGenerator</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span>- <span style="color:#204a87;font-weight:bold">name</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>my-java-server-props<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">behavior</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>merge<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">files</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span>- application.properties<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span>- more.properties<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span>- <span style="color:#204a87;font-weight:bold">name</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>my-java-server-env-file-vars<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">envs</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span>- my-server-env.properties<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span>- more-server-props.env<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span>- <span style="color:#204a87;font-weight:bold">name</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>my-java-server-env-vars<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">literals</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span>- JAVA_HOME=/opt/java/jdk<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span>- JAVA_TOOL_OPTIONS=-agentlib<span style="color:#000;font-weight:bold">:</span>hprof<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">options</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">disableNameSuffixHash</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">true</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">labels</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">pet</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>dog<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span>- <span style="color:#204a87;font-weight:bold">name</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>dashboards<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">files</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span>- mydashboard.json<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">options</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">annotations</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">dashboard</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#4e9a06">&#34;1&#34;</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">labels</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">app.kubernetes.io/name</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#4e9a06">&#34;app1&#34;</span><span style="color:#f8f8f8;text-decoration:underline">
</span></code></pre></div><p>这里也可以<a href="https://kubernetes.io/docs/tasks/configure-pod-container/configure-pod-configmap/#define-the-key-to-use-when-creating-a-configmap-from-a-file">定义一个 key</a> 来为文件设置不同名称。</p>
<p>下面这个示例会创建一个 ConfigMap并将 <code>whatever.ini</code> 重命名为 <code>myFileName.ini</code></p>
<div class="highlight"><pre style="background-color:#f8f8f8;-moz-tab-size:4;-o-tab-size:4;tab-size:4"><code class="language-yaml" data-lang="yaml"><span style="color:#204a87;font-weight:bold">apiVersion</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>kustomize.config.k8s.io/v1beta1<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">kind</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>Kustomization<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">configMapGenerator</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span>- <span style="color:#204a87;font-weight:bold">name</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>app-whatever<span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">files</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span>- myFileName.ini=whatever.ini<span style="color:#f8f8f8;text-decoration:underline">
</span></code></pre></div>
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<div class="text-muted mt-5 pt-3 border-top">最后修改 2020年06月30日: <a href="https://github.com/kubernetes-sigs/kustomize/commit/69adcf9aaf7ab032f4a387ad70048255f5294a98">configMapGenerator docs content addition (69adcf9a)</a>
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