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Syam Sundar K
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<head>
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@@ -26,13 +26,13 @@
<meta property="og:type" content="article" />
<meta property="og:url" content="https://kubernetes-sigs.github.io/kustomize/zh/blog/2019/07/26/v3.1.0/" />
<meta property="article:published_time" content="2019-07-26T00:00:00+00:00" />
<meta property="article:modified_time" content="2020-07-16T12:57:18-07:00" /><meta property="og:site_name" content="Kustomize" />
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<meta itemprop="name" content="v3.1.0">
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">
<meta itemprop="datePublished" content="2019-07-26T00:00:00+00:00" />
<meta itemprop="dateModified" content="2020-07-16T12:57:18-07:00" />
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<link rel="preload" href="/kustomize/scss/main.min.0084926537b5667d9dea1d1fd692923ad85f8bcab133e53e7ec8af9ce8dd2ca5.css" as="style">
<link href="/kustomize/scss/main.min.0084926537b5667d9dea1d1fd692923ad85f8bcab133e53e7ec8af9ce8dd2ca5.css" rel="stylesheet" integrity="">
<link rel="preload" href="/kustomize/scss/main.min.818a933df0186c907f1faea6730835dd5fa01c3b53af36bb68396dc80a2d3c45.css" as="style">
<link href="/kustomize/scss/main.min.818a933df0186c907f1faea6730835dd5fa01c3b53af36bb68396dc80a2d3c45.css" rel="stylesheet" integrity="">
<script
@@ -320,21 +320,6 @@
<nav id="TableOfContents">
<ul>
<li><a href="#extended-patches">Extended patches</a></li>
<li><a href="#improved-resource-matching">Improved Resource Matching</a>
<ul>
<li><a href="#patch-resolution-improvement">Patch resolution improvement</a></li>
<li><a href="#variable-resolution-improvement">Variable resolution improvement</a></li>
<li><a href="#simultaneous-change-of-names-and-namespaces">Simultaneous change of names and namespaces</a></li>
<li><a href="#resource-and-kustomize-context-matching">Resource and Kustomize Context matching</a></li>
</ul>
</li>
<li><a href="#other-improvements">Other improvements</a></li>
</ul>
</nav>
</div>
@@ -350,105 +335,8 @@
<time datetime="2019-07-26" class="text-muted">2019年07月26日</time>
</div>
<h2 id="extended-patches">Extended patches</h2>
<p>Since this version, Kustomize allows applying one patch to multiple resources. This works for both Strategic Merge Patch and JSON Patch. Take a look at <a href="https://github.com/kubernetes-sigs/kustomize/tree/master/examples/patchMultipleObjects.md">patch multiple objects</a>.</p>
<h2 id="improved-resource-matching">Improved Resource Matching</h2>
<p>Multiple improvements have been made to allow the user to leverage &ldquo;namespace&rdquo;
instead/or with &ldquo;name suffix/prefix&rdquo; to segregate resources.</p>
<h3 id="patch-resolution-improvement">Patch resolution improvement</h3>
<p>The following example demonstrates how using the namespace field in the patch definition,
will let the user define two different patches against two different Deployment having the
same &ldquo;deploy1&rdquo; name but in different namespaces in the same Kustomize context/folder.
Unless the <code>namespace:</code> field has been specified in the kustomization.yaml, no namespace
value will be handled as Kubernetes <code>default</code> namespace.</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><span style="color:#000">apps/v1</span><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><span style="color:#000">Deployment</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">metadata</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><span style="color:#000">deploy1</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">namespace</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">main</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">spec</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">template</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">spec</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">containers</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><span style="color:#000">nginx</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">env</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><span style="color:#000">ANOTHERENV</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">value</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">TESTVALUE</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#000">---</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><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><span style="color:#000">apps/v1</span><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><span style="color:#000">Deployment</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">metadata</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><span style="color:#000">deploy1</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">namespace</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">production</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">spec</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">template</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">spec</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">containers</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><span style="color:#000">main</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">env</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><span style="color:#000">ANOTHERENV</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">value</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">PRODVALUE</span><span style="color:#f8f8f8;text-decoration:underline">
</span></code></pre></div><h3 id="variable-resolution-improvement">Variable resolution improvement</h3>
<p>It is possible to add namespace field to the variable declaration. In the following example,
two <code>Service</code> objects with the same <code>elasticsearch</code> name have been declared.
Specifying the namespace in the objRef of the corresponding varriables, allows Kustomize to
resovlve thoses variables.
If the namespace is not specified, Kustomize will handle it has a &ldquo;wildcard&rdquo; value.</p>
<p>Extract of kustomization.yaml:</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">vars</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><span style="color:#000">elasticsearch-test-protocol</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">objref</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">kind</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">Service</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><span style="color:#000">elasticsearch</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">namespace</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">test</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><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><span style="color:#000">v1</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">fieldref</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">fieldpath</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">spec.ports[0].protocol</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><span style="color:#000">elasticsearch-dev-protocol</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">objref</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">kind</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">Service</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><span style="color:#000">elasticsearch</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">namespace</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">dev</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><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><span style="color:#000">v1</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#204a87;font-weight:bold">fieldref</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">fieldpath</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">spec.ports[0].protocol</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline">
</span></code></pre></div><h3 id="simultaneous-change-of-names-and-namespaces">Simultaneous change of names and namespaces</h3>
<p>Kustomize is now able to deal with simultaneous changes of name and namespace.
Special attention has been paid the handling of:</p>
<ul>
<li>ClusterRoleBinding/RoleBinding &ldquo;subjects&rdquo; field,</li>
<li>ValidatingWebhookConfiguration &ldquo;webhooks&rdquo; field.</li>
</ul>
<p>The user should be able to use a kustomization.yaml as shown in the example bellow
even if ClusterRoleBind,RoleBinding and ValidatingWebookConfiguration are part of the
resources he needs to declare.</p>
<p>Extract of kustomization.yaml:</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">namePrefix</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">pfx-</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">nameSuffix</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span>-<span style="color:#000">sfx</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span><span style="color:#204a87;font-weight:bold">namespace</span><span style="color:#000;font-weight:bold">:</span><span style="color:#f8f8f8;text-decoration:underline"> </span><span style="color:#000">testnamespace</span><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">resources</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:#000">...</span><span style="color:#f8f8f8;text-decoration:underline">
</span></code></pre></div><h3 id="resource-and-kustomize-context-matching">Resource and Kustomize Context matching</h3>
<p>Kustomize is now able to support more aggregation patterns.</p>
<p>If for instance, the top level of kustomization.yaml, is simply
combining sub-components, (as in the following example), Kustomize has improved
resource matching capabilities. This removes some of the constraints which were
present on the utilization of prefix/suffix and namespace transformers in the
individual components.</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">resources</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:#000">../component1</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span>- <span style="color:#000">../component2</span><span style="color:#f8f8f8;text-decoration:underline">
</span><span style="color:#f8f8f8;text-decoration:underline"></span>- <span style="color:#000">../component3</span><span style="color:#f8f8f8;text-decoration:underline">
</span></code></pre></div><h2 id="other-improvements">Other improvements</h2>
<ul>
<li>Image transformation has been improved. This allows the user to update the sha256 of
an image with another sha256.</li>
<li>Multiple default transformer configuration entries have been added, removing the need for the
user to add them as part of the <code>configurations:</code> section of the kustomization.yaml.</li>
<li><code>kustomize</code> help command has been tidied up.</li>
</ul>
<meta http-equiv="refresh" content="0; url=https://kubectl.docs.kubernetes.io/zh/blog/2019/07/26/v3.1.0/" />
<p>Moved to <a href="https://github.com/kubernetes-sigs/cli-experimental">https://github.com/kubernetes-sigs/cli-experimental</a></p>