Derived from aws-samples/serverless-tasks-webapp: Getting Started with Serverless Workshop — Tasks web application (github.com). This project implements a simple to-do list web application that enables user login, task addition and deletion, image uploading, and image recognition.
I replaced services originally provided by AWS with their open-source equivalents. As such, AWS Lambda has been replaced by OpenFaaS, S3 by MinIO, Rekognition by TensorFlow, and DynamoDB by MySQL. We not only preserve the core functionalities but also leverage the flexibility and control offered by open-source alternatives.
| Module | Public Port | Local Path |
|---|---|---|
| NodeJS (vue) | 80 | ClusterIP:8080 |
| OpenFaaS | 31112 (Management UI) | localhost:8080 |
| MinIO | 9090 (Management UI) | ClusterIP:9000 |
| MySQL | × | ClusterIP:3306 |
| TF Serving | × | ClusterIP:8501 |
The following is an example of Ubuntu 22.04 EC2. Note that the firewall rule for EC2 is set to allow all traffic.
Install the dependencies, they are all necessary components,
# Install Minikube
curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube
# Install kubectl
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl
# Install Docker socat conntrack
sudo apt-get update
sudo apt-get install docker.io socat conntrack -y
# Install arkade
curl -sLS https://get.arkade.dev | sudo sh
# Install faas-cli
curl -sL https://cli.openfaas.com | sudo sh
sudo sysctl fs.protected_regular=0Switch to the root user,
sudo -iStart containers in sequence,
# frontend container
PUBLIC_IP=$(curl https://ifconfig.me/)
sed -i 's#http://localhost:5000#http://'"$PUBLIC_IP"':31112/function/flask-service#g' webapp/src/gloopts.js
docker build -t todo-frontend ./webapp
# TF model
curl -L "https://tfhub.dev/google/imagenet/efficientnet_v2_imagenet21k_ft1k_s/classification/2?tf-hub-format=compressed" -o efficientnet_v2_imagenet21k_ft1k_s.tar.gz
mkdir -p ./model
tar -xzf efficientnet_v2_imagenet21k_ft1k_s.tar.gz -C ./model
rm efficientnet_v2_imagenet21k_ft1k_s.tar.gz
# Start minikube
minikube start --kubernetes-version=v1.22.0 HTTP_PROXY=https://minikube.sigs.k8s.io/docs/reference/networking/proxy/ --extra-config=apiserver.service-node-port-range=6000-32767 disk=20000MB --vm=true --driver=none
# deploy mysql, minio, tf serving and frontend
cat services.yml | sed s+{{path}}+$(pwd)+g | kubectl apply -f -
kubectl rollout status deploy/frontend-deployment
kubectl port-forward svc/frontend-service 80:8080 --address=0.0.0.0 &
# install openfaas
arkade install openfaas
# Forward the gateway to your machine
kubectl rollout status -n openfaas deploy/gateway
kubectl port-forward -n openfaas svc/gateway 8080:8080 &
echo "> Waiting until Openfaas to launch on 8080"
while ! nc -z localhost 8080; do
sleep 1
done
# If basic auth is enabled, you can now log into your gateway:
# The default username is `admin` and the password is obtained via `echo $PASSWORD`.
PASSWORD=$(kubectl get secret -n openfaas basic-auth -o jsonpath="{.data.basic-auth-password}" | base64 --decode; echo)
echo -n $PASSWORD | faas-cli login --username admin --password-stdin
# deploy openfaas
faas-cli build -f faas-service.yml
faas-cli deploy -f faas-service.yml