TODO Demo Application

This application implements todomvc[http://todomvc.com] with two microservices implements with Helidon MP and Helidon SE.

HTTP proxy

If you want to run behind a proxy, you need to configure the config key security.providers.google-login.proxy-host. You can do that by updating frontend/src/main/resources/application.yaml and backend/src/main/resources/application.yaml with the following content:

security:
  providers:
    - google-login:
        proxy-host: "proxy.host"

Start Zipkin

With Docker:

docker run --name zipkin -d -p 9411:9411 openzipkin/zipkin

With Kubernetes:

kubectl apply \
  -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/ingress-nginx-3.15.2/deploy/static/provider/cloud/deploy.yaml \
  -f ../k8s/zipkin.yaml

Build and run

With Docker:

docker build -t helidon-examples-todo-cassandra cassandra/
docker build -t helidon-examples-todo-backend backend/
docker build -t helidon-examples-todo-frontend frontend/
docker run --rm -d -p 9042:9042 \
    --link zipkin \
    --name helidon-examples-todo-cassandra \
    helidon-examples-todo-cassandra
docker run --rm -d -p 8854:8854 \
    --link zipkin \
    --link helidon-examples-todo-cassandra \
    --name helidon-examples-todo-backend \
    helidon-examples-todo-backend
docker run --rm -d -p 8080:8080 \
    --link zipkin \
    --link helidon-examples-todo-backend \
    --name helidon-examples-todo-frontend \
    helidon-examples-todo-frontend

Open http://localhost:8080 in your browser, add some TODO entries, then check out the traces at http://localhost:9411.

With Kubernetes (docker for desktop)

docker build -t helidon-examples-todo-cassandra cassandra/
docker build -t helidon-examples-todo-backend backend/
docker build -t helidon-examples-todo-frontend frontend/
kubectl apply -f cassandra.yaml -f backend/app.yaml -f frontend/app.yaml

Open http://localhost/todo/ in your browser, add some TODO entries, then check out the traces at http://localhost/zipkin.

Stop the docker containers:

docker stop zipkin \
    helidon-examples-todo-backend \
    helidon-examples-todo-frontend

Delete the Kubernetes resources:

kubectl delete \
    -f cassandra.yaml \
    -f backend/app.yaml \
    -f frontend/app.yaml