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This commit updates URLs to prefer the https protocol. Redirects are not followed to avoid accidentally expanding intentionally shortened URLs (i.e. if using a URL shortener). # HTTP URLs that Could Not Be Fixed These URLs were unable to be fixed. Please review them to see if they can be manually resolved. * [ ] http://arquillian.org/arquillian-cube/ (200) with 1 occurrences could not be migrated: ([https](https://arquillian.org/arquillian-cube/) result SSLHandshakeException). # Fixed URLs ## Fixed But Review Recommended These URLs were fixed, but the https status was not OK. However, the https status was the same as the http request or http redirected to an https URL, so they were migrated. Your review is recommended. * [ ] http://compose.docker.io/ (UnknownHostException) with 3 occurrences migrated to: https://compose.docker.io/ ([https](https://compose.docker.io/) result UnknownHostException). * [ ] http://www.puppycrawl.com/dtds/suppressions_1_1.dtd (404) with 2 occurrences migrated to: https://www.puppycrawl.com/dtds/suppressions_1_1.dtd ([https](https://www.puppycrawl.com/dtds/suppressions_1_1.dtd) result 404). ## Fixed Success These URLs were switched to an https URL with a 2xx status. While the status was successful, your review is still recommended. * [ ] http://asciidoctor.org with 1 occurrences migrated to: https://asciidoctor.org ([https](https://asciidoctor.org) result 200). * [ ] http://cdnjs.cloudflare.com/ajax/libs/zepto/1.2.0/zepto.min.js with 1 occurrences migrated to: https://cdnjs.cloudflare.com/ajax/libs/zepto/1.2.0/zepto.min.js ([https](https://cdnjs.cloudflare.com/ajax/libs/zepto/1.2.0/zepto.min.js) result 200). * [ ] http://img.shields.io/badge/license-Apache%202-red.svg with 1 occurrences migrated to: https://img.shields.io/badge/license-Apache%202-red.svg ([https](https://img.shields.io/badge/license-Apache%202-red.svg) result 200). * [ ] http://kubernetes.io with 2 occurrences migrated to: https://kubernetes.io ([https](https://kubernetes.io) result 200). * [ ] http://kubernetes.io/ with 1 occurrences migrated to: https://kubernetes.io/ ([https](https://kubernetes.io/) result 200). * [ ] http://microservices.io/patterns/client-side-discovery.html with 1 occurrences migrated to: https://microservices.io/patterns/client-side-discovery.html ([https](https://microservices.io/patterns/client-side-discovery.html) result 200). * [ ] http://projects.spring.io/spring-cloud/ with 1 occurrences migrated to: https://projects.spring.io/spring-cloud/ ([https](https://projects.spring.io/spring-cloud/) result 200). * [ ] http://repo1.maven.org/maven2/io/fabric8/zipkin/zipkin-starter-minimal/0.1.9/zipkin-starter-minimal-0.1.9-kubernetes.yml with 1 occurrences migrated to: https://repo1.maven.org/maven2/io/fabric8/zipkin/zipkin-starter-minimal/0.1.9/zipkin-starter-minimal-0.1.9-kubernetes.yml ([https](https://repo1.maven.org/maven2/io/fabric8/zipkin/zipkin-starter-minimal/0.1.9/zipkin-starter-minimal-0.1.9-kubernetes.yml) result 200). * [ ] http://repo1.maven.org/maven2/io/fabric8/zipkin/zipkin-starter-minimal/0.1.9/zipkin-starter-minimal-0.1.9-openshift.yml with 1 occurrences migrated to: https://repo1.maven.org/maven2/io/fabric8/zipkin/zipkin-starter-minimal/0.1.9/zipkin-starter-minimal-0.1.9-openshift.yml ([https](https://repo1.maven.org/maven2/io/fabric8/zipkin/zipkin-starter-minimal/0.1.9/zipkin-starter-minimal-0.1.9-openshift.yml) result 200). * [ ] http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html with 3 occurrences migrated to: https://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html ([https](https://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html) result 200). * [ ] http://www.java.com/en/download/help/error_hotspot.xml with 1 occurrences migrated to: https://www.java.com/en/download/help/error_hotspot.xml ([https](https://www.java.com/en/download/help/error_hotspot.xml) result 200). * [ ] http://kubernetes.io/docs/user-guide/configmap/ with 3 occurrences migrated to: https://kubernetes.io/docs/user-guide/configmap/ ([https](https://kubernetes.io/docs/user-guide/configmap/) result 301). * [ ] http://kubernetes.io/docs/user-guide/services/ with 2 occurrences migrated to: https://kubernetes.io/docs/user-guide/services/ ([https](https://kubernetes.io/docs/user-guide/services/) result 301). * [ ] http://plugins.jetbrains.com/plugin/6546 with 3 occurrences migrated to: https://plugins.jetbrains.com/plugin/6546 ([https](https://plugins.jetbrains.com/plugin/6546) result 301). * [ ] http://eclipse.org with 3 occurrences migrated to: https://eclipse.org ([https](https://eclipse.org) result 302). * [ ] http://eclipse.org/m2e/ with 6 occurrences migrated to: https://eclipse.org/m2e/ ([https](https://eclipse.org/m2e/) result 302). * [ ] http://www.springsource.com/developer/sts with 3 occurrences migrated to: https://www.springsource.com/developer/sts ([https](https://www.springsource.com/developer/sts) result 302). * [ ] http://www.javadoc.io/badge/org.springframework.cloud/spring-cloud-starter-kubernetes.svg?color=blue with 1 occurrences migrated to: https://www.javadoc.io/badge/org.springframework.cloud/spring-cloud-starter-kubernetes.svg?color=blue ([https](https://www.javadoc.io/badge/org.springframework.cloud/spring-cloud-starter-kubernetes.svg?color=blue) result 303). * [ ] http://www.javadoc.io/doc/org.springframework.cloud/spring-cloud-starter-kubernetes with 1 occurrences migrated to: https://www.javadoc.io/doc/org.springframework.cloud/spring-cloud-starter-kubernetes ([https](https://www.javadoc.io/doc/org.springframework.cloud/spring-cloud-starter-kubernetes) result 303). # Ignored These URLs were intentionally ignored. * http://%s:%d with 4 occurrences * http://IP_OR_HOSTNAME/ with 1 occurrences * http://IP_OR_HOSTNAME/greeting with 6 occurrences * http://IP_OR_HOSTNAME/services with 1 occurrences * http://docbook.org/ns/docbook with 464 occurrences * http://localhost with 3 occurrences * http://localhost/api with 2 occurrences * http://localhost/db with 2 occurrences * http://localhost:%d/actuator/health with 1 occurrences * http://name-service/name?delay=%d with 1 occurrences * http://testapp/greeting with 5 occurrences
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<html><head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>2. ConfigMap PropertySource</title><link rel="stylesheet" type="text/css" href="css/manual-multipage.css"><meta name="generator" content="DocBook XSL Stylesheets V1.79.1"><link rel="home" href="multi_spring-cloud-kubernetes.html" title="Spring Cloud Kubernetes"><link rel="up" href="multi__kubernetes_propertysource_implementations.html" title="Part II. Kubernetes PropertySource implementations"><link rel="prev" href="multi__kubernetes_propertysource_implementations.html" title="Part II. Kubernetes PropertySource implementations"><link rel="next" href="multi__secrets_propertysource.html" title="3. Secrets PropertySource"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">2. ConfigMap PropertySource</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="multi__kubernetes_propertysource_implementations.html">Prev</a> </td><th width="60%" align="center">Part II. Kubernetes PropertySource implementations</th><td width="20%" align="right"> <a accesskey="n" href="multi__secrets_propertysource.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h2 class="title"><a name="_configmap_propertysource" href="#_configmap_propertysource"></a>2. ConfigMap PropertySource</h2></div></div></div><p>Kubernetes provides a resource named <a class="link" href="https://kubernetes.io/docs/user-guide/configmap/" target="_top">ConfigMap</a> to externalize the
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parameters to pass to your application in the form of key-value pairs or embedded <code class="literal">application.properties|yaml</code> files.
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The <a class="link" href="./spring-cloud-kubernetes-config" target="_top">Spring Cloud Kubernetes Config</a> project makes Kubernetes `ConfigMap`s available
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during application bootstrapping and triggers hot reloading of beans or Spring context when changes are detected on
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observed `ConfigMap`s.</p><p>The default behavior is to create a <code class="literal">ConfigMapPropertySource</code> based on a Kubernetes <code class="literal">ConfigMap</code> which has <code class="literal">metadata.name</code> of either the name of
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your Spring application (as defined by its <code class="literal">spring.application.name</code> property) or a custom name defined within the
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<code class="literal">bootstrap.properties</code> file under the following key <code class="literal">spring.cloud.kubernetes.config.name</code>.</p><p>However, more advanced configuration are possible where multiple ConfigMaps can be used
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This is made possible by the <code class="literal">spring.cloud.kubernetes.config.sources</code> list.
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For example one could define the following ConfigMaps</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">spring</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> application</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> name</span>: cloud-k8s-app
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> cloud</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> kubernetes</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> config</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> name</span>: default-name
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> namespace</span>: default-namespace
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> sources</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment"># Spring Cloud Kubernetes will lookup a ConfigMap named c1 in namespace default-namespace</span>
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> - name</span>: c1
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment"># Spring Cloud Kubernetes will lookup a ConfigMap named default-name in whatever namespace n2</span>
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> - namespace</span>: n2
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-comment"># Spring Cloud Kubernetes will lookup a ConfigMap named c3 in namespace n3</span>
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> - namespace</span>: n3
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> name</span>: c3</pre><p>In the example above, it <code class="literal">spring.cloud.kubernetes.config.namespace</code> had not been set,
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then the ConfigMap named <code class="literal">c1</code> would be looked up in the namespace that the application runs</p><p>Any matching <code class="literal">ConfigMap</code> that is found, will be processed as follows:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">apply individual configuration properties.</li><li class="listitem">apply as <code class="literal">yaml</code> the content of any property named <code class="literal">application.yaml</code></li><li class="listitem">apply as properties file the content of any property named <code class="literal">application.properties</code></li></ul></div><p>The single exception to the aforementioned flow is when the <code class="literal">ConfigMap</code> contains a <span class="strong"><strong>single</strong></span> key that indicates
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the file is a YAML or Properties file. In that case the name of the key does NOT have to be <code class="literal">application.yaml</code> or
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<code class="literal">application.properties</code> (it can be anything) and the value of the property will be treated correctly.
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This features facilitates the use case where the <code class="literal">ConfigMap</code> was created using something like:</p><p><code class="literal">kubectl create configmap game-config --from-file=/path/to/app-config.yaml</code></p><p>Example:</p><p>Let’s assume that we have a Spring Boot application named <code class="literal">demo</code> that uses properties to read its thread pool
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configuration.</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><code class="literal">pool.size.core</code></li><li class="listitem"><code class="literal">pool.size.maximum</code></li></ul></div><p>This can be externalized to config map in <code class="literal">yaml</code> format:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">kind</span>: ConfigMap
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">apiVersion</span>: v1
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">metadata</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> name</span>: demo
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">data</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> pool.size.core</span>: <span class="hl-number">1</span>
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> pool.size.max</span>: <span class="hl-number">16</span></pre><p>Individual properties work fine for most cases but sometimes embedded <code class="literal">yaml</code> is more convenient. In this case we will
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use a single property named <code class="literal">application.yaml</code> to embed our <code class="literal">yaml</code>:</p><pre class="literallayout"> ```yaml
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kind: ConfigMap
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apiVersion: v1
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metadata:
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name: demo
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data:
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application.yaml: |-
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pool:
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size:
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core: 1
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max:16</pre><pre class="screen">The following also works:
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```yaml
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kind: ConfigMap
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apiVersion: v1
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metadata:
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name: demo
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data:
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custom-name.yaml: |-
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pool:
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size:
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core: 1
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max:16</pre><p>Spring Boot applications can also be configured differently depending on active profiles which will be merged together
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when the ConfigMap is read. It is possible to provide different property values for different profiles using an
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<code class="literal">application.properties|yaml</code> property, specifying profile-specific values each in their own document
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(indicated by the <code class="literal">---</code> sequence) as follows:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">kind</span>: ConfigMap
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">apiVersion</span>: v1
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">metadata</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> name</span>: demo
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">data</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> application.yml</span>: |-
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> greeting</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> message</span>: Say Hello to the World
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> farewell</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> message</span>: Say Goodbye
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---
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> spring</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> profiles</span>: development
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> greeting</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> message</span>: Say Hello to the Developers
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> farewell</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> message</span>: Say Goodbye to the Developers
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---
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> spring</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> profiles</span>: production
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> greeting</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> message</span>: Say Hello to the Ops</pre><p>In the above case, the configuration loaded into your Spring Application with the <code class="literal">development</code> profile will be:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> greeting</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> message</span>: Say Hello to the Developers
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> farewell</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> message</span>: Say Goodbye to the Developers</pre><p>whereas if the <code class="literal">production</code> profile is active, the configuration will be:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> greeting</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> message</span>: Say Hello to the Ops
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> farewell</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> message</span>: Say Goodbye</pre><p>If both profiles are active, the property which appears last within the configmap will overwrite preceding values.</p><p>To tell to Spring Boot which <code class="literal">profile</code> should be enabled at bootstrap, a system property can be passed to the Java
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command launching your Spring Boot application using an env variable that you will define with the OpenShift
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<code class="literal">DeploymentConfig</code> or Kubernetes <code class="literal">ReplicationConfig</code> resource file as follows:</p><pre class="programlisting"><span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">apiVersion</span>: v1
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">kind</span>: DeploymentConfig
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute">spec</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> replicas</span>: <span class="hl-number">1</span>
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...
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> spec</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> containers</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> - env</span>:
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> - name</span>: JAVA_APP_DIR
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> value</span>: /deployments
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> - name</span>: JAVA_OPTIONS
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<span xmlns:d="http://docbook.org/ns/docbook" class="hl-attribute"> value</span>: -Dspring.profiles.active=developer</pre><p><span class="strong"><strong>Notes:</strong></span>
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- check the security configuration section, to access config maps from inside a pod you need to have the correct
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Kubernetes service accounts, roles and role bindings.</p><div class="table"><a name="d0e258" href="#d0e258"></a><p class="title"><b>Table 2.1. Properties:</b></p><div class="table-contents"><table class="table" summary="Properties:" style="border-collapse: collapse;border-top: 1px solid ; border-bottom: 1px solid ; border-left: 1px solid ; border-right: 1px solid ; "><colgroup><col class="col_1"><col class="col_2"><col class="col_3"><col class="col_4"></colgroup><thead><tr><th style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top">Name</th><th style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top">Type</th><th style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top">Default</th><th style="border-bottom: 1px solid ; " align="left" valign="top">Description</th></tr></thead><tfoot><tr><th style="border-right: 1px solid ; " align="left" valign="top"><p>spring.cloud.kubernetes.config.enableApi</p></th><th style="border-right: 1px solid ; " align="left" valign="top"><p>Boolean</p></th><th style="border-right: 1px solid ; " align="left" valign="top"><p>true</p></th><th style="" align="left" valign="top"><p>Enable/Disable consuming ConfigMaps via APIs</p></th></tr></tfoot><tbody><tr><td style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top"><p>spring.cloud.kubernetes.config.enabled</p></td><td style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top"><p>Boolean</p></td><td style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top"><p>true</p></td><td style="border-bottom: 1px solid ; " align="left" valign="top"><p>Enable Secrets PropertySource</p></td></tr><tr><td style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top"><p>spring.cloud.kubernetes.config.name</p></td><td style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top"><p>String</p></td><td style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top"><p>${spring.application.name}</p></td><td style="border-bottom: 1px solid ; " align="left" valign="top"><p>Sets the name of ConfigMap to lookup</p></td></tr><tr><td style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top"><p>spring.cloud.kubernetes.config.namespace</p></td><td style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top"><p>String</p></td><td style="border-right: 1px solid ; border-bottom: 1px solid ; " align="left" valign="top"><p>Client namespace</p></td><td style="border-bottom: 1px solid ; " align="left" valign="top"><p>Sets the Kubernetes namespace where to lookup</p></td></tr><tr><td style="border-right: 1px solid ; " align="left" valign="top"><p>spring.cloud.kubernetes.config.paths</p></td><td style="border-right: 1px solid ; " align="left" valign="top"><p>List</p></td><td style="border-right: 1px solid ; " align="left" valign="top"><p>null</p></td><td style="" align="left" valign="top"><p>Sets the paths where ConfigMaps are mounted</p></td></tr></tbody></table></div></div><br class="table-break"></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="multi__kubernetes_propertysource_implementations.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="multi__kubernetes_propertysource_implementations.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="multi__secrets_propertysource.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Part II. Kubernetes PropertySource implementations </td><td width="20%" align="center"><a accesskey="h" href="multi_spring-cloud-kubernetes.html">Home</a></td><td width="40%" align="right" valign="top"> 3. Secrets PropertySource</td></tr></table></div></body></html> |