It's a fast kestrel server to get your public IP address
Images to run getip in docker container
docker run -p 4020:5000 jefersonsv/getip
git clone https://github.com/jefersonsv/getip
cd getip/src
sudo docker build -t getip .
sudo docker run --restart=unless-stopped -d -p 4020:5000 --name getip getip
curl 'http://localhost:4020'
git clone https://github.com/jefersonsv/getip
dotnet run