templates/staging/box.env

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+# The staging template — a server-class box: docker + rig, no agent, no creds.
+# KEY="value" only. Parsed against an allowlist, never sourced; there is no
+# key for a network or a security flag, on purpose — the shared box-net
+# profile is the placement contract and no template can weaken it.
+# BOX_USER must match the user user-data.yaml creates.
+#
+# BOX_REQUIRE_VM: no container fallback — the VM is the staging trust
+# boundary, and the guest runs docker. BOX_AUTOSTART: a staging server must
+# come back on its own after a host reboot. Resources are build-sized: the
+# control plane builds on the target.
+BOX_DESCRIPTION="Server-class staging VM: docker + rig preinstalled; converge with 'rig bootstrap workload' inside, then register in the control plane"
+BOX_IMAGE="images:debian/13/cloud"
+BOX_USER="ops"
+BOX_CPU="4"
+BOX_MEMORY="8GiB"
+BOX_DISK="100GiB"
+BOX_REQUIRE_VM="1"
+BOX_AUTOSTART="1"

templates/staging/user-data.yaml

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+#cloud-config
+# The staging template — a server, not an agent devbox: no agent, no
+# agent-context file, and (as everywhere in box) no credentials. Docker and
+# rig are preinstalled and that is all. Tailscale, openssh-server and every
+# credential are deliberately ABSENT: rig installs and hardens sshd and joins
+# the tailnet at bootstrap time ('box shell' → 'sudo rig bootstrap workload'),
+# holding the auth key in process memory — box never sees it.
+# BOX_USER in box.env must match the user created here — the file is passed
+# to Incus verbatim.
+users:
+  - name: ops
+    shell: /bin/bash
+    sudo: "ALL=(ALL) NOPASSWD:ALL"
+    lock_passwd: true
+package_update: true
+packages:
+  - curl
+  - ca-certificates
+  # tmux is the one agent-adjacent tool a server box still carries: 'box tmux'
+  # runs 'tmux new-session' INSIDE the box on EVERY template (#65) — the
+  # operator babysits 'rig bootstrap workload' through it — and test/cli.sh
+  # asserts it for every template directory, this one included.
+  - tmux
+runcmd:
+  - curl -fsSL https://get.docker.com | sh
+  - usermod -aG docker ops
+  # rig runs as root, so install it as root: its installer lands the tree in
+  # $HOME/.local/share/rig and symlinks /usr/local/bin/rig. HOME is pinned
+  # because cloud-init's runcmd does not guarantee one, and the installer
+  # derives its install dir from it.
+  - HOME=/root bash -c 'curl -fsSL https://raw.githubusercontent.com/heavy-duty/rig/main/install.sh | bash'