Simple python http server

This app only responds to this types of paths:

http://example.local/?5=x
http://example.local/blacklisted

How to deploy to minikube

• install Docker
• Install kubectl
• Install Helm
• Install QEMU to use kvm2 as driver for Minikube
• Install Minikube
• Start minikube with cni installed to be able to use Network Policies: minikube start --vm-driver=kvm2 --network-plugin=cni --cni=calico
• Clone the repo
• Deploy PostgreSQL to minikube: helm upgrade --install postgresql ./postgresql/

Remember! You can change username and password and all other things in the values.yaml file.

• Build image: docker build -t simple-app:v1.0 .
• Upload image to minikube: minikube image load simple-app:v1.0
• Change values in the /app/values.yaml and in /app/secrets.yaml.

Tested with Gmail. To use with Gmail you need to create application password in you Google Account and provide it to the app.

• Deploy helm chart to the minikube: helm upgrade --install simple-app ./app/.

You can do it in one line: docker build -t simple-app:v1.0 . && minikube image load simple-app:v1.0 && helm upgrade --install simple-app ./app/

• Open another terminal session and open tunnel to use LoadBalancer service localy: minikube tunnel and type in your sudo password.
• Wait a minute for it to work and find an External Ip of a service: kubectl get svc.
• Add this External ip to your hosts file: sudo echo "[Your external ip] example.local" >> /etc/hosts

How it works

• App responds to the http://host/?n=x and returns n*n.
• App responds to the http://host/blacklisted and returns 444 error, while blocking your IP from accessing Pod with deploying network pilicy to the cluster and logging your: url path, ip and datetime of blocking to PostgreSQL and sends you an email with ip address of the intruder.