# 🚀 Debian 13 dev-VM setup for `apf-portal` + `apf-ai-service`

## Goal

A reproducible developer environment on a fresh Debian 13 VM, equivalent to the current Windows-WSL setup but running on a corp-network VM. After running this procedure:

- a developer has zsh + Oh My Zsh + Powerlevel10k + the project alias / gitconfig set;
- the apf-portal local infrastructure stack (Postgres + Redis + OTel Collector per [ADR-0006](../decisions/0006-persistence-postgresql-prisma.md) / [ADR-0010](../decisions/0010-session-management-redis.md) / [ADR-0012](../decisions/0012-observability-pino-opentelemetry.md)) is running on the VM;
- two IDE flows are available: VSCode Remote-SSH (the default — files + tooling on the VM, VSCode window on Windows) and Devcontainer (Node / pnpm / Nx pinned in a versioned image);
- the doc + scripts are reusable to onboard the next dev in ~30 minutes.

This doc is **idempotent** — every script in `docs/setup/scripts/` can be re-run without breaking what's already there. Each script reports what it changed.

## Topology

Three machines are in play. Naming them once here so the rest of the doc can refer back:

| Name              | Role                                                                                                                             | Owner             |
| ----------------- | -------------------------------------------------------------------------------------------------------------------------------- | ----------------- |
| **`workstation`** | The developer's Windows machine. Runs VSCode, terminals, the SSH agent. Holds the SSH / GPG private keys.                        | per-dev           |
| **`vm-dev`**      | `10.100.201.21` — Debian 13 VM provided by the infra team. Runs the dev tooling (code, Node, Docker, per-dev infra).             | per-dev           |
| **`vm-gitlab`**   | `10.100.201.10` — Debian VM hosting GitLab + the shared preview infra (db / redis / otel) + the GitLab Runners (post-migration). | shared (all devs) |

Two environments at the developer-machine level — the codebase has identical configuration in both, only the runtime location differs:

| Env           | Code lives              | IDE-server runs | Nx servers run | Local infra stack runs   | Used for                                                                                 |
| ------------- | ----------------------- | --------------- | -------------- | ------------------------ | ---------------------------------------------------------------------------------------- |
| `local`       | workstation             | workstation     | workstation    | workstation              | Legacy WSL flow — kept working; see [02-wsl-terminal-setup.md](02-wsl-terminal-setup.md) |
| `development` | `vm-dev`                | `vm-dev`        | `vm-dev`       | `vm-dev`                 | The default flow this doc sets up                                                        |
| **Hybrid**    | workstation OR `vm-dev` | workstation     | workstation    | `vm-dev` via SSH tunnels | Run Nx locally for IDE convenience while sharing the VM's infra services                 |

The `Hybrid` row is a sub-mode of `development`, not a third environment — Angular `environment.ts` and BFF `.env` are the same. Only the network path to Postgres / Redis / OTel differs.

## Prerequisites

- A Debian 13 VM with your SSH public key already authorized (`~/.ssh/authorized_keys` populated by the infra team).
- Corporate-network access to `10.100.201.21`, `10.100.201.10`, and `git.unespace.com` (Gitea) from your workstation.
- A workstation with VSCode + the **Remote-SSH** and **Dev Containers** extensions installed.
- A locally-installed Nerd Font on the workstation (MesloLGS NF recommended — used by Powerlevel10k).
- Optional but recommended: an OpenSSH-compatible SSH agent on the workstation (Windows' built-in `ssh-agent` service, or `pageant` via WSL ssh-agent bridge, or 1Password's agent integration) so we can **forward** the agent and never copy a private key onto the VM.

## TL;DR — quickstart

The fast path. ~30 minutes including the interactive prompts (Powerlevel10k configurator, gitconfig identity, hardening review).

```bash
# On your workstation — add the VM to ~/.ssh/config with agent forwarding:
cat >> ~/.ssh/config <<'EOF'
Host vm-dev
  HostName 10.100.201.21
  User <your-vm-username>
  ForwardAgent yes
  ServerAliveInterval 60
EOF

# Then on vm-dev:
ssh vm-dev
git clone git@git.unespace.com:julien/apf_portal.git ~/Works/apf_portal
cd ~/Works/apf_portal
./docs/setup/scripts/bootstrap.sh    # runs 10..80 in order, prompts where needed
exec zsh -l                          # reload to pick up zsh + the new PATH
./infra/local/dev.sh up              # boot the local infra stack
```

The detailed procedure below explains each script's effect — read it once on your first VM, skim it on subsequent ones.

## Step 0 — Workstation preparation

Done **on your Windows / macOS / Linux workstation**, not on the VM.

### 0.1 — SSH agent + agent forwarding

The dev VM should never hold a long-lived private key. We rely on **SSH agent forwarding**: the agent on the workstation holds the key; when the VM needs to authenticate to Gitea, it borrows the workstation's key through the forwarded socket.

Windows native (PowerShell, admin once):

```powershell
# Start the agent (idempotent — already running is fine)
Set-Service -Name ssh-agent -StartupType Automatic
Start-Service ssh-agent
# Add your key
ssh-add ~/.ssh/id_ed25519
```

`~/.ssh/config` block for the VM with `ForwardAgent yes` — see the TL;DR above. Verify after first SSH:

```bash
# On vm-dev:
ssh-add -l            # should list your workstation key, NOT empty
echo $SSH_AUTH_SOCK   # should be a path, not empty
ssh -T git@git.unespace.com   # should greet you by name
```

If `ssh-add -l` says "Could not open a connection to your authentication agent", agent forwarding isn't working — verify `ForwardAgent yes` is on the right `Host` block on the workstation.

### 0.2 — VSCode extensions

- **Remote - SSH** (`ms-vscode-remote.remote-ssh`) — for IDE flow A.
- **Dev Containers** (`ms-vscode-remote.remote-containers`) — for IDE flow B.

Both ship from Microsoft.

### 0.3 — Fonts (workstation side)

Powerlevel10k uses Nerd Font glyphs. The font must be installed on the workstation (Windows / macOS / Linux), not on the VM — terminals render glyphs at the workstation level.

```
https://github.com/romkatv/powerlevel10k-media/raw/master/MesloLGS%20NF%20Regular.ttf
https://github.com/romkatv/powerlevel10k-media/raw/master/MesloLGS%20NF%20Bold.ttf
https://github.com/romkatv/powerlevel10k-media/raw/master/MesloLGS%20NF%20Italic.ttf
https://github.com/romkatv/powerlevel10k-media/raw/master/MesloLGS%20NF%20Bold%20Italic.ttf
```

Download, install, then set the font in Windows Terminal / VSCode integrated terminal to `MesloLGS NF`.

### 0.4 — Optional: GPG agent forwarding for signed commits

If you sign commits with GPG, the same pattern as SSH: agent on workstation, forward the socket to the VM. Setup is more involved than SSH — covered in step 8.5 below as an optional appendix.

## Step 1 — First SSH and sanity checks

```bash
ssh vm-dev
hostname               # what infra named the VM — note it
cat /etc/os-release    # should report Debian 13 (Trixie)
timedatectl            # check timezone is Europe/Paris and NTP is active
locale                 # check LANG / LC_* are sane (en_US.UTF-8 or fr_FR.UTF-8)
df -h /                # check disk headroom — node_modules + docker images burn 10-30 GB
free -h                # check available RAM
```

If the hostname is generic (e.g. `debian13`), set a meaningful one — the `60-tuning.sh` script handles this interactively.

## Step 2 — Clone the repo

The setup scripts live in `docs/setup/scripts/`. Clone the repo first to get them:

```bash
mkdir -p ~/Works
cd ~/Works
git clone git@git.unespace.com:julien/apf_portal.git
cd apf_portal
```

If `git` isn't installed yet (some Debian images are minimal), install it first:

```bash
sudo apt update && sudo apt install -y git
```

**Use the SSH URL** (`git@git.unespace.com:…`), not the HTTPS one — when we migrate to GitLab, swapping remote is `git remote set-url`, with no credential re-config.

## Step 3 — Run the bootstrap orchestrator (or step through individually)

The `bootstrap.sh` script runs every numbered script (`10-…` → `80-…`) in order, with a confirmation prompt at the head of each. You can also call any individual script directly.

```bash
./docs/setup/scripts/bootstrap.sh
```

What each script does:

| Script                                               | Effect                                                                                                                                                                                                                                                                          | Idempotent? |
| ---------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------- |
| [`10-base-packages.sh`](scripts/10-base-packages.sh) | `apt update` + install the minimal set every other script depends on: `curl wget git ca-certificates gnupg build-essential pkg-config`.                                                                                                                                         | ✅          |
| [`20-zsh.sh`](scripts/20-zsh.sh)                     | Install zsh + Oh My Zsh + Powerlevel10k + plugins (autosuggestions, syntax-highlighting). Patch `~/.zshrc` (theme + plugins + fzf hook) and `~/.bashrc` (exec zsh on interactive shells — `chsh` is blocked on the corp VM).                                                    | ✅          |
| [`30-cli-tools.sh`](scripts/30-cli-tools.sh)         | Install `bat eza fd-find ripgrep fzf zoxide ncdu keychain` + `jq yq httpie make tree htop tmux direnv dnsutils unzip`. Aliases for the Debian-renamed binaries (`batcat`→`bat`, `fdfind`→`fd`).                                                                                 | ✅          |
| [`40-node.sh`](scripts/40-node.sh)                   | Install nvm. Install Node from the repo's `.nvmrc` (currently `24`). Enable corepack, pin pnpm to `package.json`'s `packageManager`.                                                                                                                                            | ✅          |
| [`50-docker.sh`](scripts/50-docker.sh)               | Install Docker CE + compose plugin from the Docker apt repo. Add the current user to the `docker` group. Enable `docker.service`.                                                                                                                                               | ✅          |
| [`60-tuning.sh`](scripts/60-tuning.sh)               | `fs.inotify.max_user_watches=524288` (Vite / Nx watch). Prompt for hostname (only if generic). Add a 4 GB swapfile if none.                                                                                                                                                     | ✅          |
| [`70-hardening.sh`](scripts/70-hardening.sh)         | Best-effort UFW (allow SSH only, prompts before enabling), `unattended-upgrades` on security channel, `fail2ban` (opt-in — prompts before installing), sshd hardening (no root, no password — prompts before applying). **Probes before applying** — skips what's already done. | ✅          |
| [`80-dotfiles.sh`](scripts/80-dotfiles.sh)           | Symlink `docs/setup/dotfiles/aliases.zsh` → `~/.oh-my-zsh/custom/aliases.zsh`. Generate `~/.gitconfig` from `docs/setup/dotfiles/gitconfig.txt`, prompt for identity (name + email).                                                                                            | ✅          |

After bootstrap, reload your shell to pick up the new PATH + zsh:

```bash
exec zsh -l
p10k configure   # only if you skipped during 20-zsh.sh
```

## Step 4 — Project secrets + first run

```bash
cd ~/Works/apf_portal
cp infra/local/.env.example infra/local/.env
${EDITOR:-nano} infra/local/.env
# Set POSTGRES_PASSWORD and REDIS_PASSWORD to strong dev values.
# Keep them URL-safe (no @ # : / ? % & = + ; in the password) —
# the BFF reads DATABASE_URL and Prisma demands the URL form.

./infra/local/dev.sh up
./infra/local/dev.sh status
```

You should see `postgres`, `redis`, and `otel-collector` healthy. The optional `pgweb` / `jaeger` / `serve-static` profiles can be activated when needed (`./infra/local/dev.sh up dbtools`, etc. — see [infra/README.md](../../infra/README.md)).

Then install the workspace dependencies:

```bash
pnpm install
pnpm exec nx run-many -t lint test --parallel=3   # smoke test
```

## Step 5 — Choose your IDE flow

### Option A — VSCode Remote-SSH (default)

From your workstation:

1. `F1` → `Remote-SSH: Connect to Host…` → `vm-dev`.
2. `File → Open Folder…` → `~/Works/apf_portal`.

VSCode installs a server on the VM the first time; subsequent connections reuse it. Your terminals inside VSCode are on the VM. The extension list you installed locally (Angular Language Service, ESLint, Prettier, Prisma, …) follows you to the remote profile — install them once in the "Remote-SSH: vm-dev" profile.

**Claude Code** runs natively in this mode — install the extension in the Remote-SSH profile and it operates against the VM's filesystem.

### Option B — Devcontainer

A `.devcontainer/devcontainer.json` ships in the repo. When you open the repo in VSCode (Remote-SSH first, see Option A), VSCode detects it and offers `Reopen in Container`. The container:

- Pins Node + pnpm + Nx to the image (no reliance on the VM's nvm).
- Mounts the docker socket so it can still reach the host's `apf-portal-dev` Compose network (postgres / redis / otel).
- Forwards the standard dev ports (4200, 3000, 8081, 16686).

The image builds on first open (~3 min); subsequent opens reuse the layer cache. The host VM's nvm + pnpm install (from `40-node.sh`) is still useful as a fallback for command-line work outside the container.

### Option C — Hybrid (local Nx + VM infra)

For when you want the IDE on the workstation but the infra services on the VM:

```bash
# On workstation:
ssh -L 5432:localhost:5432 \
    -L 6379:localhost:6379 \
    -L 4317:localhost:4317 \
    -L 4318:localhost:4318 \
    vm-dev
```

Add `LocalForward` directives to `~/.ssh/config` to make this implicit:

```
Host vm-dev
  HostName 10.100.201.21
  User <your-vm-username>
  ForwardAgent yes
  LocalForward 5432 localhost:5432
  LocalForward 6379 localhost:6379
  LocalForward 4317 localhost:4317
  LocalForward 4318 localhost:4318
  ServerAliveInterval 60
```

Then on the workstation, point the BFF at `localhost:5432` / `localhost:6379` as today — the tunnels do the routing. Latency adds 5-15 ms per query, fine for daily work.

**Caveat:** the tunnels die when the SSH session does. For long-running workflows use `autossh` or wrap in `tmux`.

## Step 6 — Optional: auto-start the local infra at boot

```bash
sudo cp docs/setup/systemd/apf-portal-infra.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable --now apf-portal-infra.service
```

The unit binds to `docker.service`, runs `infra/local/dev.sh up` at boot, and tears down cleanly on `systemctl stop`. Edit the unit's `User=` line if your VM username differs from `WorkingDirectory=` assumptions.

## Step 7 — apf-ai-service (.NET, optional)

`apf-ai-service` is .NET 9 (`Apf.Ai.slnx`), not Node — it doesn't share the apf-portal Node devcontainer. If you'll work on it from this VM, install the .NET SDK:

```bash
# Microsoft official .NET repo for Debian 13:
wget https://packages.microsoft.com/config/debian/12/packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb
rm packages-microsoft-prod.deb
sudo apt update
sudo apt install -y dotnet-sdk-9.0
```

(At time of writing the Microsoft repo for Debian 13 / Trixie may not exist yet — fall back to the Debian 12 / bookworm package, which is binary-compatible.)

Clone the repo:

```bash
git clone git@git.unespace.com:julien/apf-ai-service.git ~/Works/apf-ai-service
cd ~/Works/apf-ai-service
dotnet build
```

A future ADR may codify a .NET devcontainer too; not in scope here.

## Step 8 — Advanced topics

### 8.1 — Tmux for resilient sessions

`tmux` is installed by `30-cli-tools.sh`. Workflow:

```bash
tmux new -s dev        # first time
# inside tmux:
nx serve portal-bff    # long-running
# detach with Ctrl-b d
# disconnect SSH — process keeps running

# next session:
ssh vm-dev
tmux attach -t dev     # right back where you were
```

Lifesaver when the corp network blips. A minimal `~/.tmux.conf` lands as part of dotfiles (step 8.4); the bare tmux is already usable.

### 8.2 — Direnv for per-project env vars

`direnv` is installed by `30-cli-tools.sh` and hooked into zsh by `20-zsh.sh` (`eval "$(direnv hook zsh)"`). Per-project:

```bash
cd ~/Works/apf_portal
echo 'dotenv infra/local/.env' > .envrc
direnv allow .
```

`infra/local/.env`'s variables are now in your shell whenever you `cd` into the project. The BFF + Nx pick them up automatically.

### 8.3 — Preparing for the Gitea → GitLab migration

This setup is intentionally GitLab-compatible already:

- Remotes use SSH URLs (`git@…:org/repo.git`), so migration is `git remote set-url origin git@vm-gitlab:org/repo.git` — no credential dance.
- SSH agent forwarding works against any Git host that speaks the SSH protocol.
- The `keychain` package is installed by `30-cli-tools.sh` as a fallback for non-agent-forwarded scenarios (CI tools, automation).

When GitLab is active:

1. `git remote set-url origin git@vm-gitlab:org/repo.git` on each clone.
2. Drop the agent against `vm-gitlab` once to register: `ssh -T git@vm-gitlab`.
3. Migrate the runner stack (see step 8.6).

### 8.4 — Dotfiles repo

A private `apf/dotfiles` repo is the natural home for `~/.zshrc`, `~/.p10k.zsh`, `~/.tmux.conf`, `~/.gitconfig` (template), and any per-dev overrides. Onboarding the next dev becomes:

```bash
git clone git@git.unespace.com:apf/dotfiles.git ~/.dotfiles
~/.dotfiles/install.sh
```

The dotfiles repo is **out of scope** for this PR but the `80-dotfiles.sh` script reads the project-wide templates from `docs/setup/dotfiles/` (`aliases.zsh`, `gitconfig.txt`). A subsequent PR creates the per-dev `~/.dotfiles/` repo and reuses those templates as its seed.

### 8.5 — GPG agent forwarding (optional, for signed commits)

The pattern is identical to SSH: agent on workstation, forward the socket. Setup is more finicky because GnuPG sockets are not standardised. The full procedure lives in [GnuPG's official doc](https://wiki.gnupg.org/AgentForwarding); the gist on Windows + Debian VM:

1. Workstation: `gpg-connect-agent /bye` (initialises the agent).
2. Find the workstation's agent socket: `gpgconf --list-dirs agent-extra-socket`.
3. SSH with `-R /run/user/$(id -u)/gnupg/S.gpg-agent:<workstation-socket>` (use `RemoteForward` in `~/.ssh/config` for persistence).
4. On the VM: import the public part of your signing key, set `git config --global commit.gpgsign true`.

Skip this if you don't sign commits. Many teams settle on signed commits only when the org's RSSI / compliance requirement lands.

### 8.6 — Shared preview infra + runners on `vm-gitlab` (10.100.201.10)

This is the **shared** half of the topology — handled in a follow-up. The intent, documented here so the dev VM's setup doesn't drift into it:

- **Preview env**: a clone of `infra/local/dev.compose.yml` runs on `vm-gitlab`, deployed by CI on `main` (or on PR via a manual gate). All devs point at it for cross-dev demos; no isolation, expect schema state to churn.
- **GitLab Runner** with the Docker executor on `vm-gitlab`, replacing the Gitea `act_runner` setup in `infra/ci-runners.compose.yml`. Migration steps land alongside the actual Gitea → GitLab cutover.
- **Tag convention**: `apf-portal`, `docker`, `on-prem` — analogous to the current Gitea `self-hosted` + `on-prem` labels.

When this lands, it will live at `infra/preview/` and `infra/gitlab-runners/` (sibling to `infra/local/` and `infra/ci-runners.compose.yml`). The dev VM doc here links to it without ownership.

## Step 9 — Verification + smoke test

End-to-end check after step 4:

```bash
cd ~/Works/apf_portal

# 1. Tooling versions
node --version           # should match .nvmrc (24.x)
pnpm --version           # should match package.json packageManager (10.33.4)
docker --version
docker compose version

# 2. Infra reachability
./infra/local/dev.sh status
docker exec -it apf-portal-postgres pg_isready -U portal -d portal_dev

# 3. Workspace build
pnpm exec nx run-many -t lint test build --parallel=3

# 4. Boot the BFF + SPA + admin
pnpm exec nx run-many -t serve --parallel --projects=portal-bff,portal-shell,portal-admin

# 5. Reach them
curl -fs http://localhost:3000/health
curl -fs http://localhost:4200/
curl -fs http://localhost:4300/
```

If the curls succeed, the dev VM is operational.

## Re-onboarding the next dev

Send them:

1. Their VM SSH credentials.
2. This doc.

Their procedure: clone the repo, run `bootstrap.sh`, fill in `.env`, run `dev.sh up`. ~30 minutes including the interactive prompts. The dotfiles repo (step 8.4) shaves another 5-10 min once it exists.

## Troubleshooting

### `ssh-add -l` says "Could not open a connection"

Agent forwarding broken. On workstation: check `ForwardAgent yes` is on the right `Host` block. Check the agent is running locally (`ssh-add -l` on workstation). Reconnect.

### Docker permission denied after `50-docker.sh`

The script adds you to the `docker` group, but **existing shells don't pick up the new group membership** until you re-log. `exit` and `ssh vm-dev` again.

### `nx serve` watches break above N files

`fs.inotify.max_user_watches` too low. `60-tuning.sh` sets it to 524288 — check `sysctl fs.inotify.max_user_watches`. If a reboot is needed for the value to stick, `/etc/sysctl.d/99-apf-portal.conf` already carries it.

### Powerlevel10k shows boxes / wrong glyphs

Font misconfiguration on the workstation, not the VM. Re-verify MesloLGS NF is installed locally and selected in your terminal's profile (Windows Terminal / VSCode integrated terminal). Restart the terminal.

### Hybrid mode (Option C) connections timeout intermittently

The SSH session is dying. Use `autossh -M 0 -o "ServerAliveInterval 30" -o "ServerAliveCountMax 3" vm-dev` instead of plain `ssh`, or run the tunnel inside `tmux` on the workstation.
