Mandelbrot API

Online demo: https://mandelbrot-set-periods.online/api

This service is an API to generate two types of Mandelbrot images:

• Image tiles: a tile of the Mandelbrot Set fractal.
• Orbit graphs: graph representing the iterations values for a given Mandelbrot Set point, calculating recursively the formula f(z) = z² + c where z and c are complex numbers.

Sample image tile:

Sample point orbit for point (-0.1,0.7) with period 3:

Development

Setup (docker build)

./bin/dev-setup

Run API (dev mode):

./bin/dev-serve

And open http://0.0.0.0:5000/

Usage

docker pull josecelano/mandelbrot-api
docker run -it --rm \
    -p 80:80 \
	-w /app \
    mandelbrot-api

Deploy

The demo environment was deployed to Digital Ocean Kubernetes.

You can see the yaml files in deploy/k8s folder.

Init cluster:

helm install nginx-ingress stable/nginx-ingress --set controller.publishService.enabled=true
kubectl apply --validate=false -f https://github.com/jetstack/cert-manager/releases/download/v0.14.1/cert-manager.crds.yaml
kubectl create namespace cert-manager
helm repo add jetstack https://charts.jetstack.io
helm install cert-manager --version v0.14.1 --namespace cert-manager jetstack/cert-manager
kubectl create -f ./deploy/k8s/production-issuer.yaml

Deploy app:

kubectl create -f ./deploy/k8s/mandelbrot-api.yaml
kubectl create -f ./deploy/k8s/mandelbrot-api-ingress.yaml

Re-deploy app after changing docker image:

kubectl rollout restart deployment mandelbrot-api

Related projects

This API uses these two command line applications:

• Console command to generate tiles
• Console command to generate orbits