A Windows container with Rust (MSVC), Visual Studio Build Tools, and OpenSSH — ready to build and run psmux.

pwsh -File docker\Run-PsmuxDev.ps1

This will:

1. Generate an SSH key at ~/.ssh/psmux_docker_key (if not present)
2. Build the Docker image (first time only)
3. Start the container with your public key injected
4. Print the SSH command to connect

cd docker
docker build -t psmux-dev .

Note: The build takes a while (~15-30 min) because it downloads and installs Visual Studio Build Tools. The resulting image is large (~15 GB). This is expected for Windows MSVC containers.

# Generate SSH key (once)
ssh-keygen -t ed25519 -f ~/.ssh/psmux_docker_key -N "" -C "psmux-docker"

# Run with your public key
$pubkey = Get-Content ~/.ssh/psmux_docker_key.pub
docker run -d --name psmux-dev --isolation=hyperv `
    -e "SSH_PUBLIC_KEY=$pubkey" `
    psmux-dev

$ip = docker inspect psmux-dev --format "{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}"
ssh -i ~/.ssh/psmux_docker_key -p 2222 ContainerAdministrator@$ip

git clone https://github.com/psmux/psmux.git
cd psmux
cargo install --path .
psmux --version

This container uses key-only SSH — no passwords. Your public key is passed in via the SSH_PUBLIC_KEY environment variable at container start. The Run-PsmuxDev.ps1 script handles this automatically.

You can also mount a public key file:

docker run -d --name psmux-dev --isolation=hyperv `
    -v "$HOME\.ssh\id_ed25519.pub:C:\ssh_public_key" `
    psmux-dev

After SSH-ing in, these should all work:

rustc --version
cargo --version
where cl
where link

• No passwords are used — SSH key auth only
• Container runs with Hyper-V isolation (full VM separation from host)
• SSH listens on port 2222 to avoid conflicts with host sshd
• Key is stored at ~/.ssh/psmux_docker_key (never inside the repo)

docker/
  Dockerfile
  README.md
  Run-PsmuxDev.ps1               # Host-side: generates key, builds, runs, prints SSH command
  Tools/
    StartContainer.ps1            # Entrypoint: configures sshd with key auth, starts sshd
    InstallAll.ps1                # Build-time: installs Rust, VS Build Tools, OpenSSH, Git
    ImportVsDevEnv.ps1            # Loads VS dev environment (cl.exe, link.exe) into PowerShell
  Profile/
    Microsoft.PowerShell_profile.ps1   # Auto-loads Rust + MSVC env on every shell