README.md

Env:
  Ubuntu: 22.04
  Node: v16.17.0
  Npm: 8.15.0
  Java: openjdk 11.0.16
  Git: 2.34.1
  Docker: 20.10.12

Step 1:

Make sure to have node, npm, git, docker, jdk installed on the system. Node must be recent version. Avoid node from snap, it breaks things.

curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
sudo apt install nodejs git docker.io docker openjdk-11-jdk

Install jhipster

npm install -g generator-jhipster

Step 2:

Setup cluster

Cluster:
  Desired: 3
  Minimum: 3
  Maximum: 5
  Node: t3.medium

Install istio on the cluster, connect kubectl.

curl -sL https://istio.io/downloadIstioctl | sh -
export PATH=$HOME/.istioctl/bin:$PATH

Apply istio sample addons.

kubectl apply -f samples/addons/grafana.yaml
kubectl apply -f samples/addons/prometheus.yaml
kubectl apply -f samples/addons/kiali.yaml
kubectl apply -f samples/addons/extras/zipkin.yaml

Step 3:

Copy jdl file. Modify deployment section at the end of jdl file. Change dockerRepositoryName and ingressDomain.

Generate project using:

jhipster import-jdl *.jdl

There might be some errors regarding, but they might be ignored.

Error executing './npmw install', execute it yourself. (Command failed with exit code 1: ./npmw install)

Step 4:

Generate images Go to store, invoice, notifictaion, product and run

./gradlew bootJar -Pprod jibDockerBuild 

in each of them.

Step 5:

Tag and publish docker images:

$dockerRepositoryName = ""
docker image tag store $dockerRepositoryName/store
docker push $dockerRepositoryName/store
docker image tag invoice $dockerRepositoryName/invoice
docker push $dockerRepositoryName/invoice
docker image tag notification $dockerRepositoryName/notification
docker push $dockerRepositoryName/notification
docker image tag product $dockerRepositoryName/product
docker push $dockerRepositoryName/product

Step 6:

Go to kubernetes and apply configuration

bash kubectl-apply.sh -f

kubectl get svc store -n jhipster

jhipster-jdl.jdl

application {
  config {
    baseName store
    applicationType gateway
    packageName com.jhipster.demo.store
    serviceDiscoveryType no
    authenticationType jwt
    prodDatabaseType mysql
    cacheProvider hazelcast
    buildTool gradle
    clientFramework react
  }
  entities *
}


application {
  config {
    baseName product
    applicationType microservice
    packageName com.jhipster.demo.product
    serviceDiscoveryType no
    authenticationType jwt
    prodDatabaseType mysql
    cacheProvider hazelcast
    buildTool gradle
    serverPort 8081
  }
  entities Product, ProductCategory, ProductOrder, OrderItem
}

application {
  config {
    baseName invoice
    applicationType microservice
    packageName com.jhipster.demo.invoice
    serviceDiscoveryType no
    authenticationType jwt
    prodDatabaseType mysql
    buildTool gradle
    serverPort 8082
  }
  entities Invoice, Shipment
}

application {
  config {
    baseName notification
    applicationType microservice
    packageName com.jhipster.demo.notification
    serviceDiscoveryType no
    authenticationType jwt
    databaseType mongodb
    cacheProvider no
    enableHibernateCache false
    buildTool gradle
    serverPort 8083
  }
  entities Notification
}

/**
 * Entities for Store Gateway
 */

// Customer for the store
entity Customer {
    firstName String required
    lastName String required
    gender Gender required
    email String required pattern(/^[^@\s]+@[^@\s]+\.[^@\s]+$/)
    phone String required
    addressLine1 String required
    addressLine2 String
    city String required
    country String required
}

enum Gender {
    MALE, FEMALE, OTHER
}

relationship OneToOne {
    Customer{user(login) required} to User
}

service Customer with serviceClass
paginate Customer with pagination


/**
 * Entities for product microservice
 */


// Product sold by the Online store 
entity Product {
    name String required
    description String
    price BigDecimal required min(0)
    productSize ProductSize required
    image ImageBlob
}

enum ProductSize {
    S, M, L, XL, XXL
}

entity ProductCategory {
    name String required
    description String
}

entity ProductOrder {
    placedDate Instant required
    status OrderStatus required
    code String required
    invoiceId Long
    customer String required
}

enum OrderStatus {
    COMPLETED, PENDING, CANCELLED
}

entity OrderItem {
    quantity Integer required min(0)
    totalPrice BigDecimal required min(0)
    status OrderItemStatus required
}

enum OrderItemStatus {
    AVAILABLE, OUT_OF_STOCK, BACK_ORDER
}

relationship ManyToOne {
	OrderItem{product(name) required} to Product
}

relationship OneToMany {
   ProductOrder{orderItem} to OrderItem{order(code) required} ,
   ProductCategory{product} to Product{productCategory(name)}
}

service Product, ProductCategory, ProductOrder, OrderItem with serviceClass
paginate Product, ProductOrder, OrderItem with pagination
microservice Product, ProductOrder, ProductCategory, OrderItem with product


/**
 * Entities for Invoice microservice
 */


// Invoice for sales
entity Invoice {
    code String required
    date Instant required
    details String
    status InvoiceStatus required
    paymentMethod PaymentMethod required
    paymentDate Instant required
    paymentAmount BigDecimal required
}

enum InvoiceStatus {
    PAID, ISSUED, CANCELLED
}

entity Shipment {
    trackingCode String
    date Instant required
    details String
}

enum PaymentMethod {
    CREDIT_CARD, CASH_ON_DELIVERY, PAYPAL
}

relationship OneToMany {
    Invoice{shipment} to Shipment{invoice(code) required}
}

service Invoice, Shipment with serviceClass
paginate Invoice, Shipment with pagination
microservice Invoice, Shipment with invoice


/**
 * Entities for notification microservice
 */


entity Notification {
    date Instant required
    details String
    sentDate Instant required
    format NotificationType required
    userId Long required
    productId Long required
}

enum NotificationType {
    EMAIL, SMS, PARCEL
}

microservice Notification with notification

/**
 * Deployments
 */

deployment {
  deploymentType kubernetes
  appsFolders [store, invoice, notification, product]
  dockerRepositoryName "koziejka"
  serviceDiscoveryType no
  istio true
  kubernetesServiceType Ingress
  kubernetesNamespace jhipster
  ingressType nginx
  ingressDomain "34.231.116.38.nip.io"
}