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PivotalLabsAndSamples/student-lab-instructions/13-spring-boot-microservice...

13-spring-boot-microservices.html 70KB
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  246. .verseblock pre strong{font-weight:400}

  247. .verseblock .attribution{margin-top:1.25rem;margin-left:.5ex}

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  271. th.valign-bottom,td.valign-bottom{vertical-align:bottom}

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  314. .image.right{margin-left:.625em}

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  546. <script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/1.7.1/clipboard.min.js"></script>

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  572. </head>

  573. <body class="article toc2 toc-left">

  574. <div id="header">

  575. <h1><a id="spring-boot-microservices"></a>Microservices with Spring Boot</h1>

  576. <div id="toc" class="toc2">

  577. <div id="toctitle">Labs</div>

  578. <ul class="sectlevel1">

  579. <li><a href="#_cloud_foundry">Cloud Foundry</a>

  580. <ul class="sectlevel2">

  581. <li><a href="#_useful_cf_cli_commands">Useful CF CLI commands</a></li>

  582. </ul>

  583. </li>

  584. <li><a href="#_deploy_spring_boot_microservices_to_cloud_foundry">Deploy Spring Boot Microservices to Cloud Foundry</a>

  585. <ul class="sectlevel2">

  586. <li><a href="#_deploying_strong_em_directory_web_security_em_strong_project">Deploying <strong><em>directory-web-security</em></strong> project</a></li>

  587. <li><a href="#_deploying_strong_em_code_snippet_manager_security_em_strong_project">Deploying <strong><em>code-snippet-manager-security</em></strong> project</a></li>

  588. </ul>

  589. </li>

  590. <li><a href="#_challenges">Challenges</a></li>

  591. </ul>

  592. </div>

  593. </div>

  594. <div id="content">

  595. <div id="preamble">

  596. <div class="sectionbody">

  597. <div class="paragraph">

  598. <p>Create Microservices with Spring Boot and deploy them into Cloud Foundry</p>

  599. </div>

  600. <div class="paragraph">

  601. <p><strong>Time:</strong> 35 minutes.</p>

  602. </div>

  603. <!-- toc disabled -->

  604. </div>

  605. </div>

  606. <div class="sect1">

  607. <h2 id="_cloud_foundry">Cloud Foundry</h2>

  608. <div class="sectionbody">

  609. <div class="paragraph">

  610. <p>This lab is just to get familiar with some of the common Cloud Foundry command using the CF CLI.</p>

  611. </div>

  612. <div class="olist arabic">

  613. <ol class="arabic">

  614. <li>

  615. <p>Make sure you have an account in PWS if not, create a trial account in Pivotal Web Services: <a href="https://run.pivotal.io" class="bare" target="_blank">https://run.pivotal.io</a></p>

  616. </li>

  617. <li>

  618. <p>Install Cloud Foundry CLI. You can get it from: <a href="https://github.com/cloudfoundry/cli#installers-and-compressed-binaries" class="bare" target="_blank">https://github.com/cloudfoundry/cli#installers-and-compressed-binaries</a></p>

  619. </li>

  620. <li>

  621. <p>Login into Cloud Foundry</p>

  622. <div class="listingblock">

  623. <div class="title">cf login</div>

  624. <div class="content">

  625. <pre class="CodeRay highlight"><code data-lang="bash">$ cf login -a api.run.pivotal.io</code></pre>

  626. </div>

  627. </div>

  628. </li>

  629. </ol>

  630. </div>

  631. <div class="sect2">

  632. <h3 id="_useful_cf_cli_commands">Useful CF CLI commands</h3>

  633. <div class="listingblock">

  634. <div class="title">cf help - Show help</div>

  635. <div class="content">

  636. <pre class="CodeRay highlight"><code data-lang="bash">$ cf help -a</code></pre>

  637. </div>

  638. </div>

  639. <div class="listingblock">

  640. <div class="title">marketplace - List available offerings in the marketplace</div>

  641. <div class="content">

  642. <pre class="CodeRay highlight"><code data-lang="bash">$ cf marketplace</code></pre>

  643. </div>

  644. </div>

  645. <div class="listingblock">

  646. <div class="title">services - List all service instances in the target space</div>

  647. <div class="content">

  648. <pre class="CodeRay highlight"><code data-lang="bash">$ cf services</code></pre>

  649. </div>

  650. </div>

  651. <div class="listingblock">

  652. <div class="title">create-service - Create a service instance</div>

  653. <div class="content">

  654. <pre class="CodeRay highlight"><code data-lang="bash">$ cf create-service cloudamqp lemur rabbitmq</code></pre>

  655. </div>

  656. </div>

  657. <div class="listingblock">

  658. <div class="title">bind-service - Bind a service instance to an app</div>

  659. <div class="content">

  660. <pre class="CodeRay highlight"><code data-lang="bash">$ cf bind-service myapp rabbitmq</code></pre>

  661. </div>

  662. </div>

  663. <div class="listingblock">

  664. <div class="title">push - Push a new app or sync changes to an existing app</div>

  665. <div class="content">

  666. <pre class="CodeRay highlight"><code data-lang="bash">$ cf push myapp</code></pre>

  667. </div>

  668. </div>

  669. <div class="listingblock">

  670. <div class="title">set-env - Set an env variable for an app</div>

  671. <div class="content">

  672. <pre class="CodeRay highlight"><code data-lang="bash">$ cf set-env myapp MY_VARIABLE ITS_VALUE</code></pre>

  673. </div>

  674. </div>

  675. </div>

  676. </div>

  677. </div>

  678. <div class="sect1">

  679. <h2 id="_deploy_spring_boot_microservices_to_cloud_foundry">Deploy Spring Boot Microservices to Cloud Foundry</h2>

  680. <div class="sectionbody">

  681. <div class="paragraph">

  682. <p>For this lab you will deploy two projects, the <strong>directory-web-security</strong> and the <strong>code-snippet-manager-security</strong>, both must be completed with <strong>OAuth2</strong> implementation.

  683. Remember that the <strong>directory-web-security</strong> is the <strong>Authorization Server</strong> and the <strong>code-snippet-manager-security</strong> is the <strong>Resource Server</strong>.

  684. If you haven&#8217;t finish the challenges for both projects, the it&#8217;s time to do it.</p>

  685. </div>

  686. <div class="sect2">

  687. <h3 id="_deploying_strong_em_directory_web_security_em_strong_project">Deploying <strong><em>directory-web-security</em></strong> project</h3>

  688. <div class="olist arabic">

  689. <ol class="arabic">

  690. <li>

  691. <p>Open the <strong>direcoty-web-security</strong> app in your favorite IDE. Make sure your <strong>io.pivotal.workshop.directory.config.DirectorySecurityConfig</strong> class in the <strong><em>configure(HttpSecurity http)</em></strong> is based in the <strong>Http Basic Security</strong> (<strong><em>httpBasic()</em></strong>).

  692. This will allow our <strong>code-snippet-manager-security</strong> app to connect passing credentials using a basic authentication,</p>

  693. </li>

  694. <li>

  695. <p>Open a terminal window in the <strong>directory-web-security</strong> project and create the JAR file.</p>

  696. <div class="listingblock">

  697. <div class="title">maven</div>

  698. <div class="content">

  699. <pre class="CodeRay highlight"><code data-lang="bash">./mvnw clean package -DskipTests=true</code></pre>

  700. </div>

  701. </div>

  702. <div class="listingblock">

  703. <div class="title">gradle</div>

  704. <div class="content">

  705. <pre class="CodeRay highlight"><code data-lang="bash">./gradlew build -x test</code></pre>

  706. </div>

  707. </div>

  708. </li>

  709. <li>

  710. <p>Deploy the <strong>directory-web-security</strong> JAR.</p>

  711. <div class="listingblock">

  712. <div class="title">If you used Maven, it creates the JAR in the <strong>target/</strong> folder. If you used Gradle, the JAR is in the <strong>build/libs</strong> folder.</div>

  713. <div class="content">

  714. <pre class="CodeRay highlight"><code data-lang="bash">cf push directory-web -p target/directory-web-security-0.0.1-SNAPSHOT.jar --random-route -b java_buildpack</code></pre>

  715. </div>

  716. </div>

  717. </li>

  718. <li>

  719. <p>Once deployed make sure is working by accessing the <strong>/api</strong> endpoint using the administrator credentials.</p>

  720. </li>

  721. </ol>

  722. </div>

  723. </div>

  724. <div class="sect2">

  725. <h3 id="_deploying_strong_em_code_snippet_manager_security_em_strong_project">Deploying <strong><em>code-snippet-manager-security</em></strong> project</h3>

  726. <div class="paragraph">

  727. <p>You will be using the <strong>code-snippet-manager-security</strong> project.</p>

  728. </div>

  729. <div class="paragraph">

  730. <p>Remember that you had a <strong>Challenge</strong> for this project? <em>Modify the <strong>code-snippet-manager-security</strong> project and use the <strong>directory-web-security</strong> project as authentication authority.</em></p>

  731. </div>

  732. <div class="paragraph">

  733. <p>Well, this is the solution to that Challenge!!</p>

  734. </div>

  735. <div class="olist arabic">

  736. <ol class="arabic">

  737. <li>

  738. <p>Open your <strong>code-snippet-manager-security</strong> project and open the <strong>io.pivotal.workshop.snippet.config.SnippetConfiguration</strong> class. Modify it to look like the following code:</p>

  739. <div class="listingblock">

  740. <div class="title">src/main/java/io/pivotal/workshop/snippet/config/SnippetConfiguration.java</div>

  741. <div class="content">

  742. <pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">io.pivotal.workshop.snippet.config</span>;

  743. 

  744. <span class="keyword">import</span> <span class="include">io.pivotal.workshop.snippet.domain.Code</span>;

  745. <span class="keyword">import</span> <span class="include">io.pivotal.workshop.snippet.domain.Language</span>;

  746. <span class="keyword">import</span> <span class="include">io.pivotal.workshop.snippet.domain.Snippet</span>;

  747. <span class="keyword">import</span> <span class="include">io.pivotal.workshop.snippet.repository.SnippetRepository</span>;

  748. <span class="keyword">import</span> <span class="include">org.springframework.boot.CommandLineRunner</span>;

  749. <span class="keyword">import</span> <span class="include">org.springframework.context.annotation.Bean</span>;

  750. <span class="keyword">import</span> <span class="include">org.springframework.context.annotation.Configuration</span>;

  751. <span class="keyword">import</span> <span class="include">org.springframework.context.annotation.Profile</span>;

  752. 

  753. <span class="keyword">import</span> <span class="include">java.nio.file.Files</span>;

  754. <span class="keyword">import</span> <span class="include">java.nio.file.Paths</span>;

  755. <span class="keyword">import</span> <span class="include">java.util.ArrayList</span>;

  756. <span class="keyword">import</span> <span class="include">java.util.List</span>;

  757. 

  758. <span class="annotation">@Configuration</span>

  759. <span class="directive">public</span> <span class="type">class</span> <span class="class">SnippetConfiguration</span> {

  760. 

  761. 

  762.         <span class="annotation">@Bean</span>

  763.         <span class="annotation">@Profile</span>(<span class="string"><span class="delimiter">&quot;</span><span class="content">local</span><span class="delimiter">&quot;</span></span>)

  764.         <span class="directive">public</span> CommandLineRunner runner(SnippetRepository snippetRepo) {

  765.                 <span class="keyword">return</span> args -&gt; {

  766.                         <span class="annotation">@SuppressWarnings</span>(<span class="string"><span class="delimiter">&quot;</span><span class="content">serial</span><span class="delimiter">&quot;</span></span>)

  767.                         <span class="predefined-type">List</span>&lt;Snippet&gt; snippets = <span class="keyword">new</span> <span class="predefined-type">ArrayList</span>&lt;Snippet&gt;() {

  768.                                 {

  769.                                         add(<span class="keyword">new</span> Snippet(<span class="string"><span class="delimiter">&quot;</span><span class="content">Hello World</span><span class="delimiter">&quot;</span></span>, <span class="keyword">new</span> Language(<span class="string"><span class="delimiter">&quot;</span><span class="content">HTML</span><span class="delimiter">&quot;</span></span>, <span class="string"><span class="delimiter">&quot;</span><span class="content">xml</span><span class="delimiter">&quot;</span></span>),<span class="keyword">new</span> Code(<span class="keyword">new</span> <span class="predefined-type">String</span>(Files.readAllBytes(Paths.get(<span class="string"><span class="delimiter">&quot;</span><span class="content">code/html-code.txt</span><span class="delimiter">&quot;</span></span>))))));

  770.                                         add(<span class="keyword">new</span> Snippet(<span class="string"><span class="delimiter">&quot;</span><span class="content">Hello World</span><span class="delimiter">&quot;</span></span>, <span class="keyword">new</span> Language(<span class="string"><span class="delimiter">&quot;</span><span class="content">C#</span><span class="delimiter">&quot;</span></span>, <span class="string"><span class="delimiter">&quot;</span><span class="content">c#</span><span class="delimiter">&quot;</span></span>),<span class="keyword">new</span> Code(<span class="keyword">new</span> <span class="predefined-type">String</span>(Files.readAllBytes(Paths.get(<span class="string"><span class="delimiter">&quot;</span><span class="content">code/cs-code.txt</span><span class="delimiter">&quot;</span></span>))))));

  771.                                         add(<span class="keyword">new</span> Snippet(<span class="string"><span class="delimiter">&quot;</span><span class="content">Hello World</span><span class="delimiter">&quot;</span></span>, <span class="keyword">new</span> Language(<span class="string"><span class="delimiter">&quot;</span><span class="content">Pascal</span><span class="delimiter">&quot;</span></span>, <span class="string"><span class="delimiter">&quot;</span><span class="content">py</span><span class="delimiter">&quot;</span></span>),<span class="keyword">new</span> Code(<span class="keyword">new</span> <span class="predefined-type">String</span>(Files.readAllBytes(Paths.get(<span class="string"><span class="delimiter">&quot;</span><span class="content">code/pas-code.txt</span><span class="delimiter">&quot;</span></span>))))));

  772.                                         add(<span class="keyword">new</span> Snippet(<span class="string"><span class="delimiter">&quot;</span><span class="content">Hello World</span><span class="delimiter">&quot;</span></span>, <span class="keyword">new</span> Language(<span class="string"><span class="delimiter">&quot;</span><span class="content">Erlang</span><span class="delimiter">&quot;</span></span>, <span class="string"><span class="delimiter">&quot;</span><span class="content">erl</span><span class="delimiter">&quot;</span></span>),<span class="keyword">new</span> Code(<span class="keyword">new</span> <span class="predefined-type">String</span>(Files.readAllBytes(Paths.get(<span class="string"><span class="delimiter">&quot;</span><span class="content">code/erl-code.txt</span><span class="delimiter">&quot;</span></span>))))));

  773.                                         add(<span class="keyword">new</span> Snippet(<span class="string"><span class="delimiter">&quot;</span><span class="content">Hello World</span><span class="delimiter">&quot;</span></span>, <span class="keyword">new</span> Language(<span class="string"><span class="delimiter">&quot;</span><span class="content">JavaScript</span><span class="delimiter">&quot;</span></span>, <span class="string"><span class="delimiter">&quot;</span><span class="content">js</span><span class="delimiter">&quot;</span></span>),<span class="keyword">new</span> Code(<span class="keyword">new</span> <span class="predefined-type">String</span>(Files.readAllBytes(Paths.get(<span class="string"><span class="delimiter">&quot;</span><span class="content">code/js-code.txt</span><span class="delimiter">&quot;</span></span>))))));

  774.                                         add(<span class="keyword">new</span> Snippet(<span class="string"><span class="delimiter">&quot;</span><span class="content">Hello World</span><span class="delimiter">&quot;</span></span>, <span class="keyword">new</span> Language(<span class="string"><span class="delimiter">&quot;</span><span class="content">Groovy</span><span class="delimiter">&quot;</span></span>, <span class="string"><span class="delimiter">&quot;</span><span class="content">groovy</span><span class="delimiter">&quot;</span></span>),<span class="keyword">new</span> Code(<span class="string"><span class="delimiter">&quot;</span><span class="content">println 'Hello World'</span><span class="delimiter">&quot;</span></span>)));

  775.                                 }

  776.                         };

  777. 

  778.                         snippetRepo.saveAll(snippets);

  779. 

  780.                 };

  781.         }

  782. 

  783.         <span class="annotation">@Bean</span>

  784.         <span class="annotation">@Profile</span>(<span class="string"><span class="delimiter">&quot;</span><span class="content">cloud</span><span class="delimiter">&quot;</span></span>) <span class="comment">//</span><b class="conum">(1)</b>

  785.         <span class="directive">public</span> CommandLineRunner runnerCloud(SnippetRepository snippetRepo) {

  786.                 <span class="keyword">return</span> args -&gt; {

  787.                         <span class="annotation">@SuppressWarnings</span>(<span class="string"><span class="delimiter">&quot;</span><span class="content">serial</span><span class="delimiter">&quot;</span></span>)

  788.                         <span class="predefined-type">List</span>&lt;Snippet&gt; snippets = <span class="keyword">new</span> <span class="predefined-type">ArrayList</span>&lt;Snippet&gt;() {{

  789.                                 add(<span class="keyword">new</span> Snippet(<span class="string"><span class="delimiter">&quot;</span><span class="content">Hello World</span><span class="delimiter">&quot;</span></span>, <span class="keyword">new</span> Language(<span class="string"><span class="delimiter">&quot;</span><span class="content">JavaScript</span><span class="delimiter">&quot;</span></span>, <span class="string"><span class="delimiter">&quot;</span><span class="content">js</span><span class="delimiter">&quot;</span></span>),<span class="keyword">new</span> Code(<span class="string"><span class="delimiter">&quot;</span><span class="content">console.log(</span><span class="char">\&quot;</span><span class="content">Hello World</span><span class="char">\&quot;</span><span class="content">);</span><span class="delimiter">&quot;</span></span>)));

  790.                                 add(<span class="keyword">new</span> Snippet(<span class="string"><span class="delimiter">&quot;</span><span class="content">Hello World</span><span class="delimiter">&quot;</span></span>, <span class="keyword">new</span> Language(<span class="string"><span class="delimiter">&quot;</span><span class="content">Groovy</span><span class="delimiter">&quot;</span></span>, <span class="string"><span class="delimiter">&quot;</span><span class="content">groovy</span><span class="delimiter">&quot;</span></span>),<span class="keyword">new</span> Code(<span class="string"><span class="delimiter">&quot;</span><span class="content">println 'Hello World'</span><span class="delimiter">&quot;</span></span>)));

  791.                         }};

  792.                         snippetRepo.saveAll(snippets);

  793.                 };

  794.         }

  795. }</code></pre>

  796. </div>

  797. </div>

  798. <div class="colist arabic">

  799. <ol>

  800. <li>

  801. <p>As you can see we are using the <strong>@Profile</strong> annotation, and we adding it to the <strong>runner</strong> method, making it a <em>local</em> profile, but also we are adding a new method <strong><em>runnerCloud</em></strong>

  802. and using the <em>cloud</em> profile. Why do we need to do this? well we are not deploying the <strong>code/</strong> folder, so there are no initial snippets.</p>

  803. </li>

  804. </ol>

  805. </div>

  806. <div class="admonitionblock tip">

  807. <table>

  808. <tr>

  809. <td class="icon">

  810. <div class="title">Tip</div>

  811. </td>

  812. <td class="content">

  813. By default Cloud Foundry activates the <strong><em>cloud</em></strong> profile.

  814. </td>

  815. </tr>

  816. </table>

  817. </div>

  818. </li>

  819. <li>

  820. <p>This is part of the <strong>Challenge</strong>: Use the <strong>directory-web-security</strong> project as <strong><em>authentication-authority</em></strong> for the  <strong>code-snippet-manager</strong> project. Here we are going to see the solution. Create the <strong>io.pivotal.workshop.snippet.config.SnippetSecurityConfig</strong> class, this class will reach out to the <strong>directory-web-security</strong> app.</p>

  821. <div class="listingblock">

  822. <div class="title">src/main/java/io/pivotal/workshop/snippet/config/SnippetSecurityConfig.java</div>

  823. <div class="content">

  824. <pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">io.pivotal.workshop.snippet.config</span>;

  825. 

  826. <span class="keyword">import</span> <span class="include">io.pivotal.workshop.snippet.domain.Person</span>;

  827. <span class="keyword">import</span> <span class="include">org.slf4j.Logger</span>;

  828. <span class="keyword">import</span> <span class="include">org.slf4j.LoggerFactory</span>;

  829. <span class="keyword">import</span> <span class="include">org.springframework.beans.factory.annotation.Value</span>;

  830. <span class="keyword">import</span> <span class="include">org.springframework.boot.actuate.autoconfigure.security.EndpointRequest</span>;

  831. <span class="keyword">import</span> <span class="include">org.springframework.boot.autoconfigure.security.StaticResourceRequest</span>;

  832. <span class="keyword">import</span> <span class="include">org.springframework.boot.context.properties.EnableConfigurationProperties</span>;

  833. <span class="keyword">import</span> <span class="include">org.springframework.boot.web.client.RestTemplateBuilder</span>;

  834. <span class="keyword">import</span> <span class="include">org.springframework.context.annotation.Configuration</span>;

  835. <span class="keyword">import</span> <span class="include">org.springframework.core.ParameterizedTypeReference</span>;

  836. <span class="keyword">import</span> <span class="include">org.springframework.hateoas.MediaTypes</span>;

  837. <span class="keyword">import</span> <span class="include">org.springframework.hateoas.Resource</span>;

  838. <span class="keyword">import</span> <span class="include">org.springframework.http.HttpMethod</span>;

  839. <span class="keyword">import</span> <span class="include">org.springframework.http.HttpStatus</span>;

  840. <span class="keyword">import</span> <span class="include">org.springframework.http.RequestEntity</span>;

  841. <span class="keyword">import</span> <span class="include">org.springframework.http.ResponseEntity</span>;

  842. <span class="keyword">import</span> <span class="include">org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder</span>;

  843. <span class="keyword">import</span> <span class="include">org.springframework.security.config.annotation.web.builders.HttpSecurity</span>;

  844. <span class="keyword">import</span> <span class="include">org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter</span>;

  845. <span class="keyword">import</span> <span class="include">org.springframework.security.core.userdetails.User</span>;

  846. <span class="keyword">import</span> <span class="include">org.springframework.security.core.userdetails.UserDetails</span>;

  847. <span class="keyword">import</span> <span class="include">org.springframework.security.core.userdetails.UserDetailsService</span>;

  848. <span class="keyword">import</span> <span class="include">org.springframework.security.core.userdetails.UsernameNotFoundException</span>;

  849. <span class="keyword">import</span> <span class="include">org.springframework.web.client.RestTemplate</span>;

  850. <span class="keyword">import</span> <span class="include">org.springframework.web.util.UriComponentsBuilder</span>;

  851. 

  852. <span class="keyword">import</span> <span class="include">java.net.URI</span>;

  853. <span class="keyword">import</span> <span class="include">java.util.Collections</span>;

  854. 

  855. <span class="annotation">@EnableConfigurationProperties</span>(SnippetProperties.class)

  856. <span class="annotation">@Configuration</span>

  857. <span class="directive">public</span> <span class="type">class</span> <span class="class">SnippetSecurityConfig</span> <span class="directive">extends</span> WebSecurityConfigurerAdapter {

  858. 

  859.     <span class="directive">private</span> <span class="directive">final</span> <span class="predefined-type">Logger</span> log = LoggerFactory.getLogger(SnippetSecurityConfig.class);

  860.     <span class="directive">private</span> RestTemplate restTemplate;

  861.     <span class="directive">private</span> UriComponentsBuilder builder;

  862.     <span class="directive">private</span> SnippetProperties properties;

  863. 

  864.     <span class="directive">public</span> SnippetSecurityConfig(RestTemplateBuilder restTemplateBuilder,SnippetProperties properties){

  865.         <span class="local-variable">this</span>.restTemplate = restTemplateBuilder.basicAuthorization(properties.getAuthenticationUsername(),properties.getAuthenticationPassword()).build();

  866.         <span class="local-variable">this</span>.properties = properties;

  867.     }

  868. 

  869.     <span class="annotation">@Override</span>

  870.     <span class="directive">protected</span> <span class="type">void</span> configure(HttpSecurity http) <span class="directive">throws</span> <span class="exception">Exception</span> {

  871.         http

  872.                 .authorizeRequests()

  873.                 .requestMatchers(EndpointRequest.to(<span class="string"><span class="delimiter">&quot;</span><span class="content">status</span><span class="delimiter">&quot;</span></span>, <span class="string"><span class="delimiter">&quot;</span><span class="content">info</span><span class="delimiter">&quot;</span></span>))

  874.                 .permitAll()

  875. 

  876.                 .requestMatchers(EndpointRequest.toAnyEndpoint())

  877.                 .hasRole(<span class="string"><span class="delimiter">&quot;</span><span class="content">ACTUATOR</span><span class="delimiter">&quot;</span></span>)

  878. 

  879. 

  880.                 .requestMatchers(StaticResourceRequest.toCommonLocations())

  881.                 .permitAll()

  882. 

  883.                 .antMatchers(<span class="string"><span class="delimiter">&quot;</span><span class="content">/api/**</span><span class="delimiter">&quot;</span></span>).hasRole(<span class="string"><span class="delimiter">&quot;</span><span class="content">ADMIN</span><span class="delimiter">&quot;</span></span>)

  884.                 .antMatchers(<span class="string"><span class="delimiter">&quot;</span><span class="content">/</span><span class="delimiter">&quot;</span></span>).hasRole(<span class="string"><span class="delimiter">&quot;</span><span class="content">USER</span><span class="delimiter">&quot;</span></span>)

  885. 

  886.                 .and()

  887.                 .httpBasic();

  888.     }

  889. 

  890.     <span class="annotation">@Override</span>

  891.     <span class="directive">public</span> <span class="type">void</span> configure(AuthenticationManagerBuilder auth) <span class="directive">throws</span> <span class="exception">Exception</span> { <span class="comment">//</span><b class="conum">(1)</b>

  892.         auth.userDetailsService(<span class="keyword">new</span> UserDetailsService(){

  893. 

  894.             <span class="annotation">@Override</span>

  895.             <span class="directive">public</span> UserDetails loadUserByUsername(<span class="predefined-type">String</span> email) <span class="directive">throws</span> UsernameNotFoundException {

  896. 

  897.                 <span class="keyword">try</span> {

  898.                     builder = UriComponentsBuilder.fromUriString(properties.getAuthenticationUri())

  899.                             .queryParam(<span class="string"><span class="delimiter">&quot;</span><span class="content">email</span><span class="delimiter">&quot;</span></span>, email);

  900. 

  901.                     log.info(<span class="string"><span class="delimiter">&quot;</span><span class="content">Querying: </span><span class="delimiter">&quot;</span></span> + builder.toUriString());

  902. 

  903.                     ResponseEntity&lt;Resource&lt;Person&gt;&gt; responseEntity = restTemplate.exchange(  <span class="comment">//</span><b class="conum">(2)</b>

  904.                             RequestEntity.get(<span class="predefined-type">URI</span>.create(builder.toUriString()))

  905.                                 .accept(MediaTypes.HAL_JSON)

  906.                                 .build()

  907.                             , <span class="keyword">new</span> ParameterizedTypeReference&lt;Resource&lt;Person&gt;&gt;() {

  908.                             });

  909. 

  910.                     <span class="keyword">if</span> (responseEntity.getStatusCode() == HttpStatus.OK) {

  911. 

  912.                         Resource&lt;Person&gt; resource = responseEntity.getBody();

  913.                         Person person = resource.getContent();

  914.                         <span class="keyword">return</span> User.withDefaultPasswordEncoder().username(person.getEmail()).password(person.getPassword()).roles(person.getRole()).build();

  915.                     }

  916. 

  917.                 }<span class="keyword">catch</span>(<span class="exception">Exception</span> ex) {

  918.                     ex.printStackTrace();

  919.                 }

  920. 

  921.                 <span class="keyword">throw</span> <span class="keyword">new</span> UsernameNotFoundException(email);

  922. 

  923. 

  924.             }

  925.         });

  926.     }

  927. 

  928. }</code></pre>

  929. </div>

  930. </div>

  931. <div class="colist arabic">

  932. <ol>

  933. <li>

  934. <p>We are configuring the <strong>AuthenticationManagerBuilder</strong> and the <strong>UserDetailsService</strong> that will use a <strong>restTemplate</strong> to contact the <strong>directory-web-security-app</strong>.</p>

  935. </li>

  936. <li>

  937. <p>We are going to reach the <strong><em>/api/persons/search/findByEmailIgnoreCase</em></strong> endpoint. This endpoint returns a <strong>HAL+JSON</strong>, meaning that we need a <strong>Resource</strong> that will get <strong>email</strong> we are looking for.</p>

  938. </li>

  939. </ol>

  940. </div>

  941. </li>

  942. <li>

  943. <p>From the previous class, you&#8217;ve already saw that we need the <strong>SnippetProperties</strong>. Create/Modify the <strong>io.pivotal.workshop.snippet.config.SnippetProperties</strong> class.</p>

  944. <div class="listingblock">

  945. <div class="title">src/main/java/io/pivotal/workshop/snippet/config/SnippetProperties.java</div>

  946. <div class="content">

  947. <pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">io.pivotal.workshop.snippet.config</span>;

  948. 

  949. <span class="keyword">import</span> <span class="include">org.springframework.boot.context.properties.ConfigurationProperties</span>;

  950. 

  951. <span class="annotation">@ConfigurationProperties</span>(prefix = <span class="string"><span class="delimiter">&quot;</span><span class="content">snippet</span><span class="delimiter">&quot;</span></span>)

  952. <span class="directive">public</span> <span class="type">class</span> <span class="class">SnippetProperties</span> {

  953. 

  954.         <span class="directive">private</span> <span class="predefined-type">String</span> path;

  955.         <span class="directive">private</span> <span class="predefined-type">String</span> authenticationUri;

  956.         <span class="directive">private</span> <span class="predefined-type">String</span> authenticationUsername;

  957.         <span class="directive">private</span> <span class="predefined-type">String</span> authenticationPassword;

  958. 

  959.         <span class="directive">public</span> <span class="predefined-type">String</span> getPath() {

  960.                 <span class="keyword">return</span> path;

  961.         }

  962. 

  963.         <span class="directive">public</span> <span class="type">void</span> setPath(<span class="predefined-type">String</span> path) {

  964.                 <span class="local-variable">this</span>.path = path;

  965.         }

  966. 

  967.     <span class="directive">public</span> <span class="predefined-type">String</span> getAuthenticationUri() {

  968.         <span class="keyword">return</span> authenticationUri;

  969.     }

  970. 

  971.     <span class="directive">public</span> <span class="type">void</span> setAuthenticationUri(<span class="predefined-type">String</span> authenticationUri) {

  972.         <span class="local-variable">this</span>.authenticationUri = authenticationUri;

  973.     }

  974. 

  975.     <span class="directive">public</span> <span class="predefined-type">String</span> getAuthenticationUsername() {

  976.         <span class="keyword">return</span> authenticationUsername;

  977.     }

  978. 

  979.     <span class="directive">public</span> <span class="type">void</span> setAuthenticationUsername(<span class="predefined-type">String</span> authenticationUsername) {

  980.         <span class="local-variable">this</span>.authenticationUsername = authenticationUsername;

  981.     }

  982. 

  983.     <span class="directive">public</span> <span class="predefined-type">String</span> getAuthenticationPassword() {

  984.         <span class="keyword">return</span> authenticationPassword;

  985.     }

  986. 

  987.     <span class="directive">public</span> <span class="type">void</span> setAuthenticationPassword(<span class="predefined-type">String</span> authenticationPassword) {

  988.         <span class="local-variable">this</span>.authenticationPassword = authenticationPassword;

  989.     }

  990. }</code></pre>

  991. </div>

  992. </div>

  993. </li>

  994. <li>

  995. <p>Open the <strong>src/main/resources/application.properties</strong> file and add the following configuration.</p>

  996. <div class="listingblock">

  997. <div class="title">src/main/resources/application.properties</div>

  998. <div class="content">

  999. <pre class="CodeRay highlight"><code data-lang="java"><span class="error">#</span><span class="error">#</span> Web App <span class="predefined-type">Port</span>

  1000. server.port=<span class="error">$</span>{port:<span class="integer">8081</span>}

  1001. 

  1002. <span class="error">#</span><span class="error">#</span> JPA

  1003. <span class="error">#</span> spring.jpa.show-sql=<span class="predefined-constant">true</span>

  1004. spring.jpa.generate-ddl=<span class="predefined-constant">true</span>

  1005. spring.jpa.hibernate.ddl-auto=create-drop

  1006. 

  1007. <span class="error">#</span><span class="error">#</span> REST

  1008. spring.data.rest.base-path=api

  1009. 

  1010. <span class="error">#</span><span class="error">#</span> ACTUATOR

  1011. management.endpoints.web.base-path=/admin

  1012. endpoints.default.web.enabled=<span class="predefined-constant">true</span>

  1013. 

  1014. <span class="error">#</span><span class="error">#</span> Snippet

  1015. snippet.path=/tmp/snippets

  1016. 

  1017. <span class="error">#</span><span class="error">#</span> <span class="predefined-type">URL</span>

  1018. snippet.authentication-uri=http:<span class="comment">//localhost:8585/api/persons/search/findByEmailIgnoreCase</span>

  1019. snippet.authentication-username=admin

  1020. snippet.authentication-password=admin</code></pre>

  1021. </div>

  1022. </div>

  1023. <div class="paragraph">

  1024. <p>As you can see we are adding the <strong>snippet.authentication</strong>* properties, with the <em>credentials</em> and <em>uri</em> of the <strong>directory-web-security</strong> app.</p>

  1025. </div>

  1026. </li>

  1027. <li>

  1028. <p>Next, open a terminal window in the <strong>code-snippet-manager-security</strong> project and create the JAR file.</p>

  1029. <div class="listingblock">

  1030. <div class="title">maven</div>

  1031. <div class="content">

  1032. <pre class="CodeRay highlight"><code data-lang="bash">./mvnw clean package -DskipTests=true</code></pre>

  1033. </div>

  1034. </div>

  1035. <div class="listingblock">

  1036. <div class="title">gradle</div>

  1037. <div class="content">

  1038. <pre class="CodeRay highlight"><code data-lang="bash">./gradlew build -x test</code></pre>

  1039. </div>

  1040. </div>

  1041. </li>

  1042. <li>

  1043. <p>Deploy the <strong>code-snippet-manager-security</strong> JAR but don&#8217;t start the application just yet.</p>

  1044. <div class="listingblock">

  1045. <div class="title">If you used Maven, it creates the JAR in the <strong>target/</strong> folder. If you used Gradle, the JAR is in the <strong>build/libs</strong> folder.</div>

  1046. <div class="content">

  1047. <pre class="CodeRay highlight"><code data-lang="bash">cf push code-snippet-manager -p target/code-snippet-manager-security-0.0.1-SNAPSHOT.jar --random-route -b java_buildpack --no-start</code></pre>

  1048. </div>

  1049. </div>

  1050. </li>

  1051. <li>

  1052. <p>Remember that this application relies on the <strong>application.properties</strong> because it was added the <strong><em>credentials</em></strong> and the <strong><em>uri</em></strong>, so we need to alter at least the <strong>snippet.authentication-uri</strong>, so we can add the <strong>directory-web</strong>'s uri.

  1053. to Modify this we are going to use <strong>environment variables</strong>:</p>

  1054. <div class="listingblock">

  1055. <div class="content">

  1056. <pre class="CodeRay highlight"><code data-lang="bash">cf set-env code-snippet-manager SNIPPET_AUTHENTICATION_URI http://directory-web-unapprehended-pluralism.cfapps.io/api/persons/search/findByEmailIgnoreCase</code></pre>

  1057. </div>

  1058. </div>

  1059. <div class="paragraph">

  1060. <p>The <strong>URI</strong> is the one from the <strong>directory-web</strong> application you have just deployed.</p>

  1061. </div>

  1062. </li>

  1063. <li>

  1064. <p>Start the <strong>code-snippet-manager</strong> application.</p>

  1065. <div class="listingblock">

  1066. <div class="content">

  1067. <pre class="CodeRay highlight"><code data-lang="bash">cf start code-snippet-manager</code></pre>

  1068. </div>

  1069. </div>

  1070. </li>

  1071. <li>

  1072. <p>Once started make sure is working by accessing the <strong>code-snippet-manager</strong> app <strong>/api</strong> using the credentials.</p>

  1073. </li>

  1074. </ol>

  1075. </div>

  1076. </div>

  1077. </div>

  1078. </div>

  1079. <div class="sect1">

  1080. <h2 id="_challenges">Challenges</h2>

  1081. <div class="sectionbody">

  1082. <div class="ulist">

  1083. <ul>

  1084. <li>

  1085. <p>Add the code from the <strong>code-snippet-manager-amqp</strong> to use a RabbitMQ service.</p>

  1086. </li>

  1087. <li>

  1088. <p>Instead of using an <strong>H2</strong> as persistence engine, use a <strong>MySQL</strong> service, what changes do you need to do in your code?</p>

  1089. </li>

  1090. </ul>

  1091. </div>

  1092. </div>

  1093. </div>

  1094. </div>

  1095. <div id="footer">

  1096. <div id="footer-text">

  1097. Last updated 2017-11-28 17:34:29 PST

  1098. </div>

  1099. </div>

  1100. </body>

  1101. </html>