the-final-nut

Quarkus, GraalVM, Svelte, Docker simple application.

After the-two-nuts-with-chocolate I decided to create simple Quarkus native application example. Backend is same like in the-two-nuts-with-chocolate, frontend is svelte sapper application.

tech stack

Database implementation - Postgres

Database versioning - Flyway

Messaging platform - Kafka

build

• GraalVM CE 19.3.1
  • gu install native-image
  • sudo apt-get install libz-dev
• maven
• docker

mvn clean install -Pdocker

run

In root directory

docker-compose up

first start

Kafka topic is not created at first start so we have to create it:

docker exec -it the-final-nut_kafka_1 kafka-topics.sh --create --zookeeper zookeeper:2181 --replication-factor 1 --partitions 1 --topic nut

Then we have to start service:

docker container start the-final-nut_backend_1

or

docker-compose down
docker-compose up 

I didn't configure any proxy. You have to add

127.0.0.1    backend

to your /etc/hosts

endpoints

• backend
• frontend

measuring

image size

docker image ls

REPOSITORY                    TAG                 IMAGE ID            CREATED              SIZE
janobono/final-nut-frontend   latest              c3723e6b45d0        31 seconds ago       93.2MB
janobono/final-nut-backend    latest              3200130d38f9        About a minute ago   218MB

memory consumption

docker stats

CONTAINER ID        NAME                        CPU %               MEM USAGE / LIMIT     MEM %               NET I/O             BLOCK I/O           PIDS
5048787efe8c        the-final-nut_backend_1     0.38%               33.48MiB / 7.677GiB   0.43%               15.4kB / 13.2kB     0B / 0B             16

results

In my opinion there is no real argument for GraalVM native build now.

• build time 11:38 min vs 57 s
• image size grow up from 179MB to 218MB as a base debian:10-slim was used
• memory usage 308.6MiB vs 33.48MiB

I didn't write any native test so this should be next effort. Memory consumption is really impressive but if you haven't resource problems the price for this result should be really big.