Presented here is a boilerplate for monitoring a web application using Grafana and Prometheus.

• Pull the repo git pull https://github.com/Leekao/BizzaboAssignment.git
• Inside webApp run docker build . -t bizzabo-app . (on some Docker versions this might be docker buildx build . -t bizzabo-app)

• For a simple Docker example run docker-compose up from the project root folder
• Grafana: http://localhost:3001/ (user/password: admin/admin, the Dashboard is under "General").
• Prometheus : http://localhost:9090/
• WebApp: http://localhost:9999/
• AlertManager: http://localhost:9093/

• In order to use k8s You'll need to change k8s/grafana.yml and fix the absolute path to fit your path, ABSOLUTE path only!
• Run kubectl apply -f k8s from the project root folder
• Access any of the services using the nodePorts (type kubectl get services for a list of the services, under PORTS you'll see the nodePort, the schema is [internal port]:[node port]/TCP)
• The Bizzabo web app is available on it's NodePort or through nginx

This boilerplate supports a webhook alert, edit the file alertmanager-cm.yml and insert your discord/slack URL. I used a requestbin url for testing and I advise you to do the same

• The mounts for Grafana needs to change from hostPath to a persistent volume claim
• The services and the nginx should be replaced by ingress controller and ingress (with TLS termination) or to ClusterIP
• The deployments have default resource limits or requirements, this needs to be fine-tuned before deploying to production
• The webApp is currently a single pods, this needs to be fine-tuned before deploying to production (change the value of replicas)
• Since on local mode the webApp is built on the host the image pull policy for the webApp deployment is IfNotPresent, when switching to production this will probably need to change and pull the image from a Docker repository.
• change the webhook_url on AlertManager to proper url