rg.yaml

apiVersion: kro.run/v1alpha1
kind: ResourceGraphDefinition
metadata:
  name: webapp.kro.run
spec:
  weight: 150
  schema:
    apiVersion: v1alpha1
    kind: WebApp
    spec:
      name: string
      namespace: string | default=default
      image: string | default=nginx
      port: integer | default=8080
      replicas: integer | default=1
      service:
        enabled: boolean | default=true
      ingress:
        enabled: boolean | default=false
      serviceAccount: string | default=default
      s3bucketName: string | default=""
    status:
      deploymentConditions: ${deployment.status.conditions}
      availableReplicas: ${deployment.status.availableReplicas}
      url: ${ingress.status.loadBalancer.ingress[0].hostname}

  resources:
  - id: deployment
    readyWhen:
      - ${deployment.spec.replicas == deployment.status.availableReplicas}
    template:
      apiVersion: apps/v1
      kind: Deployment
      metadata:
        name: ${schema.spec.name}
        namespace: ${schema.spec.namespace}
        labels:
          app.kubernetes.io/name: ${schema.spec.name}
      spec:
        replicas: ${schema.spec.replicas}
        selector:
          matchLabels:
            app.kubernetes.io/name: ${schema.spec.name}
            app: ${schema.spec.name}
        template:
          metadata:
            labels:
              app.kubernetes.io/name: ${schema.spec.name}
              app: ${schema.spec.name}
          spec:
            serviceAccountName: ${schema.spec.serviceAccount}
            containers:
            - name: s3-demo
              image: ${schema.spec.image}
              imagePullPolicy: Always
              ports:
              - containerPort: ${schema.spec.port}
              resources:
                requests:
                  memory: "64Mi"
                  cpu: "250m"
                limits:
                  memory: "1Gi"
                  cpu: "1"
              env:
              - name: S3_BUCKET_NAME
                value: ${schema.spec.s3bucketName}
            restartPolicy: Always

  - id: service
    includeWhen:
    - ${schema.spec.service.enabled}
    template:
      apiVersion: v1
      kind: Service
      metadata:
        name: ${deployment.metadata.name}
        namespace: ${deployment.metadata.namespace}
      spec:
        selector:
          app: ${schema.spec.name}
        ports:
        - name: http
          protocol: TCP
          port: 80
          targetPort: ${schema.spec.port}

  - id: ingress
    includeWhen:
    - ${schema.spec.ingress.enabled}
    template:
      apiVersion: networking.k8s.io/v1
      kind: Ingress
      metadata:
        name: ${deployment.metadata.name}
        namespace: ${deployment.metadata.namespace}
        annotations:
          kubernetes.io/ingress.class: alb
          alb.ingress.kubernetes.io/scheme: internet-facing
          alb.ingress.kubernetes.io/target-type: ip
          alb.ingress.kubernetes.io/healthcheck-path: /health
          alb.ingress.kubernetes.io/listen-ports: '[{"HTTP": 80}]'
          alb.ingress.kubernetes.io/target-group-attributes: stickiness.enabled=true,stickiness.lb_cookie.duration_seconds=60
      spec:
        rules:
        - http:
            paths:
            - path: "/"
              pathType: Prefix
              backend:
                service:
                  name: ${service.metadata.name}
                  port:
                    number: 80