network-lab

This repository contains my experiments and network lab configurations built with the excellent tool Containerlab.

About Containerlab

Containerlab allows for the quick deployment of network topologies using Docker images. However, it can also leverage QEMU images to support certain network devices, such as MikroTik routers.

All these labs are designed following the Infrastructure as Code approach:

• YAML is used for defining the lab with Containerlab.
• D2 is used for creating network diagrams with d2.

Creating a Lab

Creating a lab is simple:

1. Define the topology in a YAML file in <LABNAME> folder
2. [optional] Build docker images²

   just build imgnameX build imgnameY

3. Deploy the lab with the following command:

   just deploy
   just info
   # Wait 1 minute before going to next step

4. Test your lab if it run correctely:

   just test

5. [optional] Show the network wires with edgeshark

   just edgeshark-start
   just edgeshark-open
   just edgeshark-stop

6. Document your lab in a D2 file:

   just diagram

Labs

Name	Description	Tags
2024-11-18 - mikrotik-ipv4-vlan-homelab	3 VLANs on Mikrotik routers	ipv4, vlan, mikrotik
2025-04-26 - mikrotik-dns-failover	DNS failover on Mikrotik routers	dns, failover, mikrotik