Netdisco is a web-based network management tool suitable for small to very large networks. IP and MAC address data is collected into a PostgreSQL database using SNMP, CLI, or device APIs.
And usable as Docker 🙂

sudo groupadd netdisco -g 901
sudo useradd -u 901 -p x -g netdisco netdisco
sudo mkdir -p netdisco/{logs,config,nd-site-local}
sudo chown -R netdisco:netdisco netdisco
sudo curl -Ls -o docker-compose.yml
sudo docker-compose up