QEMU-based NetBSD docker images

Runs NetBSD in emulation, using QEMU, so you can test easily on NetBSD. Inspired by madworx/netbsd.

Available on Docker Hub as vasi/netbsd. Source is on GitHub.

Usage

Run a command

docker run --rm vasi/netbsd uname -a

Get a shell

docker run --rm --ti vasi/netbsd sh

Run in background, login with SSH

docker run -p 127.0.0.1:2222:22 --rm -ti --name netbsd --device=/dev/kvm -e PUBKEY="$(ssh-add -L | head -n1)" -d vasi/netbsd
ssh -oStrictHostKeyChecking=no -p 2222 root@localhost

Comparison to madworx/netbsd

This is very similar to madworx/netbsd. The difference is that madworx's project boots from NFS, while this one uses a fork of Anita to auto-install NetBSD onto a virtual disk.

There are pros and cons to this approach:

Pros:

• More realistic/"normal" NetBSD installation
• Faster disk
• No weird NFS symptoms

Cons:

• Harder to change files in the VM
• Each Docker layer that changes the virtual disk snapshot has to copy the whole snapshot