bar-stack Architecture

Techniques, Patterns and Technologies

Techniques

• Microfontends
• API Gateway Per Microfrontend (Backends For Frontends (BFF))
• Microservices
• Eventsourcing
• CQRS

Microfrontends

• NodeJs/Express

API Gateway

• Spring Cloud Gateway

Microservice API's

• GraphQL | REST (Jersey) | JMS
• Spring cloud config
• Spring cloud sleuth
• Spring cloud contracts
• Eventuate local
• Gauge for acceptance tests (component test)
• Gauge + Taiko for user journey e2e tests
• Docker

Network

• Kuma service mesh
• Kubernetes

Microservices Patterns by Chris Richardson https://www.evernote.com/shard/s728/sh/e21325cc-2f69-483b-a0fc-9047abb29b9e/0bcceb7a682cab3f96aa3cee8139b519

Links We choose to have a BFF per micro frontend. This allowed us to provide more flexibility to the team. For example, the account domain team, has their own account BFF. Micro Frontends Event Sourcing

Local Setup

Checkout Code

mkdir bar
cd bar
git clone https://github.com/SamAllen83/bar-stack.git
git clone https://github.com/SamAllen83/bartender.git
git clone https://github.com/SamAllen83/config-server.git
git clone https://github.com/SamAllen83/browse-drink-ui.git
git clone https://github.com/SamAllen83/drink-container-ui.git
git clone https://github.com/SamAllen83/order-drink-ui.git
git clone https://github.com/SamAllen83/order-drink-api-gateway.git
git clone https://github.com/SamAllen83/browse-drink-api-gateway.git
git clone https://github.com/SamAllen83/config-server.git
cd bar-stack

Kubernetes Using Docker For Mac

Make sure Kubernetes is running on your Mac and docker-for-desktop context is selected so you can deploy to your local kubernetes. https://matthewpalmer.net/kubernetes-app-developer/articles/how-to-run-local-kubernetes-docker-for-mac.html

Onetime setup

Map beveragebotbar.com to 127.0.0.1 in /etc/hosts

You need to create an nginx ingress controller, this only needs to be done once (ever)

kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/mandatory.yaml

kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/provider/cloud-generic.yaml

kubectl get pods --all-namespaces -l app.kubernetes.io/name=ingress-nginx --watch

Once the operator pods are running, you can cancel the above command by typing Ctrl+C. Now, you are ready to create your first ingress.

Run locally

1. Build everything and install images locally: ./dockerdesktopk8s-build.sh
2. Run everything: ./start.sh
3. Verify things are working. Hit URL in browser: http://beveragebotbar.com/

Shutdown

./stop.sh