https://github.com/redhat-appdev-practice/tekton-lab
Backing code for the Tekton Lab
https://github.com/redhat-appdev-practice/tekton-lab
Last synced: 4 months ago
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Backing code for the Tekton Lab
- Host: GitHub
- URL: https://github.com/redhat-appdev-practice/tekton-lab
- Owner: redhat-appdev-practice
- Created: 2023-08-03T16:12:02.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2023-08-31T16:29:48.000Z (almost 3 years ago)
- Last Synced: 2026-01-28T09:59:06.424Z (5 months ago)
- Language: HTML
- Size: 79.1 KB
- Stars: 1
- Watchers: 3
- Forks: 15
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# Getting started with Quarkus
This is a minimal CRUD service exposing a couple of endpoints over REST.
Under the hood, this demo uses:
- RESTEasy to expose the REST endpoints
- REST-assured and JUnit 5 for endpoint testing
## Requirements
To compile and run this demo you will need:
- JDK 11+
- GraalVM
### Configuring GraalVM and JDK 11+
Make sure that both the `GRAALVM_HOME` and `JAVA_HOME` environment variables have
been set, and that a JDK 11+ `java` command is on the path.
See the [Building a Native Executable guide](https://quarkus.io/guides/building-native-image-guide)
for help setting up your environment.
## Building the application
Launch the Maven build on the checked out sources of this demo:
> ./mvnw package
### Live coding with Quarkus
The Maven Quarkus plugin provides a development mode that supports
live coding. To try this out:
> ./mvnw quarkus:dev
This command will leave Quarkus running in the foreground listening on port 8080.
1. Visit the default endpoint: [http://127.0.0.1:8080](http://127.0.0.1:8080).
- Make a simple change to [src/main/resources/META-INF/resources/index.html](src/main/resources/META-INF/resources/index.html) file.
- Refresh the browser to see the updated page.
2. Visit the `/hello` endpoint: [http://127.0.0.1:8080/hello](http://127.0.0.1:8080/hello)
- Update the response in [src/main/java/org/acme/quickstart/GreetingResource.java](src/main/java/org/acme/quickstart/GreetingResource.java). Replace `hello` with `hello there` in the `hello()` method.
- Refresh the browser. You should now see `hello there`.
- Undo the change, so the method returns `hello` again.
- Refresh the browser. You should now see `hello`.
### Run Quarkus in JVM mode
When you're done iterating in developer mode, you can run the application as a
conventional jar file.
First compile it:
> ./mvnw package
Then run it:
> java -jar ./target/quarkus-app/quarkus-run.jar
Have a look at how fast it boots, or measure the total native memory consumption.
### Run Quarkus as a native executable
You can also create a native executable from this application without making any
source code changes. A native executable removes the dependency on the JVM:
everything needed to run the application on the target platform is included in
the executable, allowing the application to run with minimal resource overhead.
Compiling a native executable takes a bit longer, as GraalVM performs additional
steps to remove unnecessary codepaths. Use the `native` profile to compile a
native executable:
> ./mvnw package -Dnative
After getting a cup of coffee, you'll be able to run this executable directly:
> ./target/getting-started-1.0.0-SNAPSHOT-runner