giavudangle/kotlin-hexagon

The Kotlin Hexagon Self-practice

Architecture

Core processor

Request journey

HTTP -> Controller -> API -> Service Interface -> Adapter -> Core
Infrastructure -> Adapter -> Core -> Response
Dependencies go inwards (arrow is dependencies direction)

Docker Container

$ docker compose up
$ docker-compose up --build -d

Maven commands

 $ mvn clean
 $ mvn download source
 $ mvn dependency:resolve

ELK Stack Setup

1. Elasticsearch
docker ps
docker exec -u 0 -it <elasticsearch_pid> bash
./bin/elasticsearch-setup-passwords auto
2. Kibana
 
apt-get update
apt-get install nano
nano config/kibana.yml
elasticsearch.username: <kibana_username>
elasticsearch.password: <kibana_password>
3. Logstash

OpenAPI and Swagger

OpenAPI: http://localhost:8080/v3/api-docs
Swagger: http://localhost:8080/swagger-ui/index.html

Deploy to K8S

$ docker build -t hexagon-root .
$ kubectl apply -f deploy.yaml
$ kubectl port-forward pod/taco-cloud-deploy-555bd8fdb4-dln45 8080:8080