I have been struggling for a few hours on this one. I have a very simple 2 tier dotnet core skeleton app (mvc and webapi) hosted on Azure using Kubernetes with Windows as the orchestrator. The deployment works fine and I can pass basic environment variables over. The challenge I have is that I cannot determine how to pass the backend service IP address over to the frontend variables. if I stage the deployments, I can manually pass the exposed IP of the backend into the frontend. Ideally, this needs to be deployed as a service.

Any help will be greatly appreciated.

Deployment commands:

1 - kubectl create -f backend-deploy.yaml

2 - kubectl create -f backend-service.yaml

3 - kubectl create -f frontend-deploy.yaml

4 - kubectl create -f frontend-service.yaml

backend-deploy.yaml

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apiVersion: apps/v1beta1 kind: Deployment metadata: name: acme spec: replicas: 5 template: metadata: labels: app: acme-app tier: backend spec: containers: - name: backend-container image: "some/image" imagePullSecrets: - name: supersecretkey env: - name: Config__AppName value: "Acme App" - name: Config__AppDescription value: "Just a backend application" - name: Config__AppVersion value: "1.0" - name: Config__CompanyName value: "Acme Trading Limited"

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backend-service.yaml

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kind: Service
apiVersion: v1
metadata:
  name: acme-app
spec:
  selector:
    app: acme-app
    tier: backend
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
  type: LoadBalancer

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frontend-deploy.yaml

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apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: frontend
spec:
  replicas: 2
  template:
    metadata:
      labels:
        app: acme-app
        tier: frontend
    spec:
      containers:
        - name: frontend-container
          image: "some/image"
      imagePullSecrets:
        - name: supersecretkey
          env:
          - name: Config__AppName
            value: "Acme App"
          - name: Config__AppDescription
            value: "Just a frontend application"
          - name: Config__AppVersion
            value: "1.0"
          - name: Config__AppTheme
            value: "fx-theme-black"
          - name: Config__ApiUri
            value: ***THIS IS WHERE I NEED THE BACKEND SERVICE IP***
          - name: Config__CompanyName
            value: "Acme Trading Limited"

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frontend-service.yaml

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kind: Service

apiVersion: v1

metadata:

  name: frontend

spec:

  selector:

    app: acme

    tier: frontend

  ports:
    - protocol: "TCP"

      port: 80

      targetPort: 80

  type: LoadBalancer

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