https://github.com/rbiedrawa/spring-native-kafka-demo
This repository demonstrates how to transform a Spring-Boot Kafka application to native executable using GraalVM.
https://github.com/rbiedrawa/spring-native-kafka-demo
apache-kafka avro avro-idl-files avro-kafka avro-schema-registry docker docker-compose graalvm graalvm-native-image gradle java-11 kafka-consumer kafka-producer kafka-streams native-executables schema-registry spring-boot spring-kafka spring-native
Last synced: about 1 month ago
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This repository demonstrates how to transform a Spring-Boot Kafka application to native executable using GraalVM.
- Host: GitHub
- URL: https://github.com/rbiedrawa/spring-native-kafka-demo
- Owner: rbiedrawa
- License: mit
- Created: 2021-07-07T18:08:18.000Z (about 4 years ago)
- Default Branch: master
- Last Pushed: 2022-01-31T02:02:01.000Z (over 3 years ago)
- Last Synced: 2025-03-21T23:43:26.611Z (7 months ago)
- Topics: apache-kafka, avro, avro-idl-files, avro-kafka, avro-schema-registry, docker, docker-compose, graalvm, graalvm-native-image, gradle, java-11, kafka-consumer, kafka-producer, kafka-streams, native-executables, schema-registry, spring-boot, spring-kafka, spring-native
- Language: Java
- Homepage:
- Size: 72.3 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: Readme.md
- License: LICENSE
Awesome Lists containing this project
README
# Spring Kafka - GraalVM native executable demo
This repository demonstrates how to transform a `Spring Boot Kafka` application to native executable using GraalVM.
## Getting Started
### Prerequisites
* Docker
### Usage
#### 1. Create native image of demo application
```shell
./gradlew bootBuildImage
```
*** *Occasionally You may see the following error: `Error: Image building with exit status 137`.This error occurs if the
system runs out of ram, in order to fix this increase Docker memory e.g 10GB*
#### 2. Start Docker containers
```shell
cd docker
docker compose up -d
```
#### 3. Check if all containers are up and running
```shell
docker compose ps
# NAME SERVICE STATUS PORTS
# akhq akhq running 0.0.0.0:8080->8080/tcp, :::8080->8080/tcp
# kafka kafka running 0.0.0.0:9092->9092/tcp, :::9092->9092/tcp, 0.0.0.0:9101->9101/tcp, :::9101->9101/tcp
# schema-registry schema-registry running 0.0.0.0:8081->8081/tcp, :::8081->8081/tcp
# spring-native-demo spring-native-demo running 0.0.0.0:7777->7777/tcp, :::7777->7777/tcp
# zookeeper zookeeper running 0.0.0.0:2181->2181/tcp, :::2181->2181/tcp, 2888/tcp, 3888/tcp
```
#### 4. Verify that messages are produced/consumed correctly.
```shell
docker compose logs -f spring-native-demo
# spring-native-demo | 2021-07-07 17:46:28.155 INFO 1 --- [ scheduling-1] c.r.app.customers.RandomEventGenerator : Successfully sent CustomerCreated event {"eid": "5178e6bf-c241-45bc-9e1b-90a789ec328c", "userId": "9958e080-bafc-4f84-b4c0-f1ee180a3db3", "email": "2a22ea77-6187-4860-98de-a14a549ab06a@test.com", "name": "Name adb925cc-aa8e-4be1-be21-7f71c0d0aa0a"}
# spring-native-demo | 2021-07-07 17:46:28.158 INFO 1 --- [-StreamThread-1] c.r.app.customers.CustomerEventsKStream : Consumed customer event {"eid": "5178e6bf-c241-45bc-9e1b-90a789ec328c", "userId": "9958e080-bafc-4f84-b4c0-f1ee180a3db3", "email": "2a22ea77-6187-4860-98de-a14a549ab06a@test.com", "name": "Name adb925cc-aa8e-4be1-be21-7f71c0d0aa0a"}.
# spring-native-demo | 2021-07-07 17:46:28.158 INFO 1 --- [ntainer#0-0-C-1] c.r.app.customers.CustomerEventListener : Received CustomerCreated event -> {"eid": "5178e6bf-c241-45bc-9e1b-90a789ec328c", "userId": "9958e080-bafc-4f84-b4c0-f1ee180a3db3", "email": "2a22ea77-6187-4860-98de-a14a549ab06a@test.com", "name": "Name adb925cc-aa8e-4be1-be21-7f71c0d0aa0a"}
```
#### 5. Stop demo application
```shell
docker compose stop spring-native-demo
```
#### 6. Start demo application
```shell
docker compose start spring-native-demo
```
#### 7. Investigate application startup time
```shell
docker compose logs spring-native-demo | grep "Started NativeApplication"
# spring-native-demo | 2021-07-07 18:02:34.108 INFO 1 --- [ main] com.rbiedrawa.app.NativeApplication : Started NativeApplication in 0.152 seconds (JVM running for 0.156)
# spring-native-demo | 2021-07-07 18:03:35.373 INFO 1 --- [ main] com.rbiedrawa.app.NativeApplication : Started NativeApplication in 0.127 seconds (JVM running for 0.13)
```
#### 8. Destroy demo infrastructure
When you're done, stop Docker containers by running.
```shell
docker compose down -v
```
## Important Endpoints
| Name | Endpoint |
| -------------:|:--------:|
| `Akhq UI` | [http://localhost:8080/](http://localhost:8080/) |
| `Schema-registry` | [http://localhost:8081/](http://localhost:8081/) |
## References
For further reference, please consider the following sections:
* [Spring Native Reference Guide](https://docs.spring.io/spring-native/docs/current/reference/htmlsingle/)
* [Configure the Spring AOT Plugin](https://docs.spring.io/spring-native/docs/0.10.1/reference/htmlsingle/#spring-aot-gradle)
* [Announcing Spring Native Beta!](https://spring.io/blog/2021/03/11/announcing-spring-native-beta)
* [Spring for Apache Kafka](https://docs.spring.io/spring-boot/docs/2.5.2/reference/htmlsingle/#boot-features-kafka)
* [Kafka Docker Images](https://github.com/confluentinc/kafka-images)
* [I tried Spring Native for GraalVM and I like it!](https://www.youtube.com/watch?app=desktop&v=x1nVchtOn90)
## License
Distributed under the MIT License. See `LICENSE` for more information.