Understanding Bubble and Azure Kubernetes Fleet Manager

Prerequisites

• Basic understanding of Bubble (a no-code development platform)
• Azure account and a Kubernetes cluster
• Azure CLI installed
• kubectl installed

Step 1: Preparing Your Bubble App

• Create your application on Bubble and set up the necessary functionalities and workflows.
• Deploy your Bubble application and note the URL where your app is hosted.
• Ensure your Bubble app is set to allow API connections if you intend to use APIs for integration.

Step 2: Setting up Azure Kubernetes Cluster

• Log in to your Azure account using the Azure CLI.
  az login
• Create a resource group for your Kubernetes cluster.
  az group create --name myResourceGroup --location eastus
• Create a Kubernetes cluster in Azure.
  az aks create --resource-group myResourceGroup --name myAKSCluster --node-count 1 --enable-addons monitoring --generate-ssh-keys

Step 3: Configuring Azure Kubernetes Fleet Manager

• Install the Azure Kubernetes Fleet Manager CLI extensions.
  az extension add --name fleet
• Set up a fleet by creating a fleet resource.
  az fleet create --resource-group myResourceGroup --name myFleet

Step 4: Deploying Containerized Application

• Convert your Bubble app into a containerized application. This often involves using a Dockerfile to define your container.
• Example Dockerfile:

  
      FROM mhart/alpine-node:14
      WORKDIR /app
      COPY . .
      RUN npm install
      EXPOSE 3000
      CMD ["npm", "start"]
      

• Build your Docker image.
  docker build -t mybubbleapp .
• Push your Docker image to Azure Container Registry (ACR).
  az acr create --resource-group myResourceGroup --name myContainerRegistry --sku Basic
az acr login --name myContainerRegistry
docker tag mybubbleapp myContainerRegistry.azurecr.io/mybubbleapp
docker push myContainerRegistry.azurecr.io/mybubbleapp

Step 5: Deploy to Azure Kubernetes Fleet Manager

• Create a deployment YAML file for Kubernetes. Example:

  
      apiVersion: apps/v1
      kind: Deployment
      metadata:
        name: mybubbleapp-deployment
      spec:
        replicas: 1
        selector:
          matchLabels:
            app: mybubbleapp
        template:
          metadata:
            labels:
              app: mybubbleapp
          spec:
            containers:
          - name: mybubbleapp
              image: myContainerRegistry.azurecr.io/mybubbleapp
              ports:
              - containerPort: 3000
      

• Apply the deployment to your Kubernetes cluster.
  kubectl apply -f deployment.yaml

Step 6: Integrating Bubble App with AKS Fleet

• Expose your Bubble app service using a service YAML file. Example:

  
      apiVersion: v1
      kind: Service
      metadata:
        name: mybubbleapp-service
      spec:
        type: LoadBalancer
        selector:
          app: mybubbleapp
        ports:
      - protocol: TCP
          port: 80
          targetPort: 3000
      

• Apply the service configuration.
  kubectl apply -f service.yaml
• Once the service is running, you can access your Bubble app through the external IP assigned to the service.
• Note the external IP and update any necessary configurations in your Bubble app to reflect this if needed.

Step 7: Testing Integration

• Ensure the Bubble app is accessible through the provided external IP.
• Test the functionality to verify that everything is working as expected.

Conclusion

• By following the detailed steps, you will have successfully integrated Bubble with Azure Kubernetes Fleet Manager, leveraging Kubernetes for scaling and managing your Bubble application effectively.