post: Introducing Quarkus Backstage #2277
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🎊 PR Preview 66bd23d has been successfully built and deployed to https://quarkus-site-pr-2277-preview.surge.sh
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maxandersen
reviewed
Apr 25, 2025
| https://backstage.io[Backstage] is a great tool for organizations to survive the Microservice Architecture chaos. | ||
| A tool, can't help if it's not used nor if it's feed with stale data. | ||
| The https://docs.quarkiverse.io/quarkus-backstage/dev/index.html[Quarkus Backstage] project was created to leverage the power of the Quarkus build system in order to keep | ||
| the catalog entities of Quarkus components up to day. In Quarkus lingo, to bring "Platform Engineer joy". |
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| the catalog entities of Quarkus components up to day. In Quarkus lingo, to bring "Platform Engineer joy". | |
| the catalog entities of Quarkus components up to date. In Quarkus lingo, to bring "Platform Engineer joy". |
maxandersen
reviewed
Apr 25, 2025
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| ==== As a CLI plugin ==== | ||
| Let's see how to use the https://docs.quarkiverse.io/quarkus-backstage/dev/index.html[Quarkus Backstage] CLI plguin in order to generate https://backstage.io[Backstage] entities for your Quarkus application. |
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| Let's see how to use the https://docs.quarkiverse.io/quarkus-backstage/dev/index.html[Quarkus Backstage] CLI plguin in order to generate https://backstage.io[Backstage] entities for your Quarkus application. | |
| Let's see how to use the https://docs.quarkiverse.io/quarkus-backstage/dev/index.html[Quarkus Backstage] CLI plugin in order to generate https://backstage.io[Backstage] entities for your Quarkus application. |
maxandersen
reviewed
Apr 25, 2025
| Name Type Scope Location Description | ||
| * backstage maven user io.quarkiverse.backstage:quarkus-backstage-cli:0.6.0 | ||
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| [WARN] 🔥 Plugin was added in the user scope, but another with the same name exists in the project scope! |
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what/why is that warning there?
maxandersen
reviewed
Apr 25, 2025
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| [source,shell] | ||
| ---- | ||
| quarkus backstage entities generate |
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when I run this I get:
java.lang.RuntimeException: io.quarkus.bootstrap.BootstrapException: Failed to create the application model for org.acme:hello-backstage::jar:1.0.0-SNAPSHOTnull
at io.quarkiverse.backstage.cli.common.GenerationBaseCommand.call(GenerationBaseCommand.java:113)
at io.quarkiverse.backstage.cli.common.GenerationBaseCommand.call(GenerationBaseCommand.java:30)
at picocli.CommandLine.executeUserObject(CommandLine.java:2045)
at picocli.CommandLine.access$1500(CommandLine.java:148)
at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2465)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2457)
at picocli.CommandLine$RunLast.handle(CommandLine.java:2419)
at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
at picocli.CommandLine$RunLast.execute(CommandLine.java:2421)
at io.quarkus.picocli.runtime.PicocliRunner$EventExecutionStrategy.execute(PicocliRunner.java:26)
at picocli.CommandLine.execute(CommandLine.java:2174)
at io.quarkus.picocli.runtime.PicocliRunner.run(PicocliRunner.java:40)
at io.quarkus.runtime.ApplicationLifecycleManager.run(ApplicationLifecycleManager.java:143)
at io.quarkus.runtime.Quarkus.run(Quarkus.java:77)
at io.quarkus.runtime.Quarkus.run(Quarkus.java:48)
at io.quarkus.runner.GeneratedMain.main(Unknown Source)
Caused by: io.quarkus.bootstrap.BootstrapException: Failed to create the application model for org.acme:hello-backstage::jar:1.0.0-SNAPSHOTnull
at io.quarkus.bootstrap.BootstrapAppModelFactory.resolveAppModelForWorkspace(BootstrapAppModelFactory.java:280)
at io.quarkus.bootstrap.BootstrapAppModelFactory.resolveAppModel(BootstrapAppModelFactory.java:219)
at io.quarkus.bootstrap.app.QuarkusBootstrap.bootstrap(QuarkusBootstrap.java:138)
at io.quarkiverse.backstage.cli.common.GenerationBaseCommand.call(GenerationBaseCommand.java:102)
... 15 more
Caused by: io.quarkus.bootstrap.resolver.maven.BootstrapMavenException: Failed to resolve artifact org.acme:hello-backstage:jar:1.0.0-SNAPSHOT
at io.quarkus.bootstrap.resolver.BootstrapAppModelResolver.resolve(BootstrapAppModelResolver.java:591)
at io.quarkus.bootstrap.resolver.BootstrapAppModelResolver.resolve(BootstrapAppModelResolver.java:441)
at io.quarkus.bootstrap.resolver.BootstrapAppModelResolver.doResolveModel(BootstrapAppModelResolver.java:297)
at io.quarkus.bootstrap.resolver.BootstrapAppModelResolver.resolveManagedModel(BootstrapAppModelResolver.java:206)
at io.quarkus.bootstrap.BootstrapAppModelFactory.resolveAppModelForWorkspace(BootstrapAppModelFactory.java:269)
... 18 more
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.acme:hello-backstage:jar:1.0.0-SNAPSHOT (absent): Could not find artifact org.acme:hello-backstage:jar:1.0.0-SNAPSHOT
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:473)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:261)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:243)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:278)
at io.quarkus.bootstrap.resolver.BootstrapAppModelResolver.resolve(BootstrapAppModelResolver.java:586)
... 22 more
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.acme:hello-backstage:jar:1.0.0-SNAPSHOT
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:464)
... 26 more
should there be a mvn package instruction before this?
maxandersen
reviewed
Apr 25, 2025
| .... | ||
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| At the time of writing the extension is not part of the Extension catalog, and thus it needs to be added using |
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Yes, let's get it in. It's so easy to do ...
maxandersen
reviewed
Apr 25, 2025
| [source,shell] | ||
| ---- | ||
| quarkus ext add smallrye-openapi | ||
| echo "quarkus.smallrye-openapi.store-schema-directory=." >> src/main/resources/application.properties |
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| echo "quarkus.smallrye-openapi.store-schema-directory=." >> src/main/resources/application.properties | |
| quarkus config set quarkus.smallrye-openapi.store-schema-directory . |
maxandersen
reviewed
Apr 25, 2025
| .... | ||
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| Let's rebuild the application and see how our `catalog-info.yaml` file looks like: |
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I get:
quarkus backstage entities generate
2025-04-25 12:09:50,811 WARN [io.qua.run.con.ConfigRecorder] (main) Build time property cannot be changed at runtime:
- quarkus.ide.target is set to 'vscode' but it is build time fixed to 'auto'. Did you change the property quarkus.ide.target after building the application?
java.lang.RuntimeException: io.quarkus.builder.BuildException: Build failure: Build failed due to errors
[error]: Build step io.quarkus.deployment.index.ApplicationArchiveBuildStep#build threw an exception: org.jboss.jandex.UnsupportedVersion: Can't read Jandex index from /META-INF/jandex.idx: Can't read index version 13; this IndexReader only supports index versions 2-3,6-12
at io.quarkus.deployment.index.IndexingUtil$MetaInfJandexReader.apply(IndexingUtil.java:299)
at io.quarkus.deployment.index.IndexingUtil$MetaInfJandexReader.apply(IndexingUtil.java:275)
need a different version?
maxandersen
requested changes
Apr 25, 2025
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