box/drill/drill.sh
dan-claude-bot 86dbb0449e refactor(templates): the tenant seeds carry rig's -box family suffix
rig is growing a second family of roles, and once a 'staging' role can mean
either a fleet machine or a box tenant, the bare name stops naming anything.
rig's answer is a suffix on the role (heavy-duty/rig#76): '-server' for fleet
machines, '-box' for box tenants. box's answer is that a template keeps being
named for the role it converges, so the tenant templates move with it:

  claude  -> claude-box    codex   -> codex-box
  grok    -> grok-box      staging -> staging-box

Templates are the only surface that spells a rig role out loud
(BOX_BOOTSTRAP_ROLE, auto-run at mint since #81), so a directory that says one
thing and a role key that says another is a trap with a 15-minute fuse: it
mints clean and dies at convergence. Renamed with 'git mv' so the history of
each seed follows it.

'blank' keeps its name. It seeds no tenant role and sets no
BOX_BOOTSTRAP_ROLE, so it has nothing to agree with — renaming it would only
churn the default template's name for symmetry's sake.

Two namespaces move apart here and only one of them moved: the template name
and the role are now claude-box, while the seed USER stays 'claude' — that is
the user rig's role converges and the one 'box shell' lands in. test/cli.sh
pins the pair per tenant rather than each half alone, because a later rename
that moves one and forgets the other mints a box whose role dies looking for a
user nobody created. drill.sh keeps its bare box NAMES ('codex', 'grok' — what
the pre-flight banner announces and what teardown deletes) and only moves the
--template it passes.

The mint-time hints in cmd_new match both spellings of user.box.template, and
that is not an alias for the role: 'rig bootstrap claude' is gone and nothing
here softens the cut. The stamp is a fact about an INSTANCE, written at its own
mint time and carried forward by every clone; refusing the old spelling would
cut nothing over and only drop the login hint on boxes that predate today —
the same reason user.claudebox is honored everywhere else. migrate-host.sh
stamps re-homed legacy boxes claude-box, the name the template has today, so a
re-homed box looks like a fresh mint rather than a fossil.

Ordered AFTER rig's rename, and that is not a preference. The seeds install rig
from RIG_REPO/RIG_REF, defaulting to heavy-duty/rig@main and unpinned until
rig#32's releases, so these templates ask whatever main happens to be for
'rig bootstrap claude-box'. Against a pre-rename rig that role does not exist
and cmd_new refuses to call the box ready. Merged in the other order the window
closes instead of opening: rig's cut is hard, with no aliases, so the day it
lands every unmerged box seed naming a bare role is the broken one.

Closes #123

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-20 00:01:29 +00:00

997 lines
54 KiB
Bash
Executable file

#!/usr/bin/env bash
# drill.sh — end-to-end drill for box, against a real Incus.
#
# ⚠ DESTRUCTIVE, AND MEANT TO BE. Run it on a THROWAWAY host you can format.
# It installs Incus, rewrites the host's firewall rules, installs a systemd
# unit, and creates and deletes instances. Never run it on a machine you care
# about.
#
# bash drill/drill.sh # asks first
# bash drill/drill.sh --yes # no prompt (CI, or you've read it)
# bash drill/drill.sh --ref main # drill a different branch of the repo
# bash drill/drill.sh --keep-boxes # leave the boxes up to poke at
#
# Four phases:
# A. Incus semantics — the assumptions box is built on, probed directly.
# These were only ever verified against a stub.
# B. The box surface — the whole CLI, end to end, including the boundary.
# C. Isolation baseline — does the trust boundary actually hold? (#15 section A)
# D. Hardening rehearsal — #16's proposed changes, applied live and re-probed
# (#15 section B). FAILs here are design vetoes, not code bugs.
#
# Exit 0 = every check passed. The summary ends with a block of audit answers
# to paste into heavy-duty/claudebox#15.
#
# The file is one long 'probe && ok "..." || no "..."'. ok/no always return 0, so
# the C-may-run-when-A-is-true trap SC2015 warns about cannot fire here.
# shellcheck disable=SC2015
#
# NOT -e: a failing check is data, not a crash. NOT pipefail: half the checks
# are 'refusal 2>&1 | grep -q text' where the refusal exits 1/2 BY DESIGN, and
# 'grep -q' SIGPIPEs the left side on early match — pipefail turned both into
# false FAILs on the first live run. The pipeline verdict must be grep's alone.
set -u
REPO="${BOX_REPO:-heavy-duty/box}"
REF="${BOX_REF:-main}"
YES=0; KEEP=0
SELF="$(readlink -f "$0")"
while [ $# -gt 0 ]; do
case "$1" in
--yes|-y) YES=1; shift ;;
--keep-boxes) KEEP=1; shift ;;
--repo) REPO="$2"; shift 2 ;;
--ref) REF="$2"; shift 2 ;;
--in-group) shift; break ;; # internal: see below
-h|--help) sed -n '2,18p' "$0" | sed 's/^# \{0,1\}//'; exit 0 ;;
*) echo "drill: unknown option: $1" >&2; exit 2 ;;
esac
done
pass=0; fail=0; findings=(); audit=()
ok() { printf ' \033[32mPASS\033[0m %s\n' "$*"; pass=$((pass + 1)); }
no() { printf ' \033[31mFAIL\033[0m %s\n' "$*"; fail=$((fail + 1)); findings+=("FAIL: $*"); }
note() { printf ' \033[33mNOTE\033[0m %s\n' "$*"; findings+=("NOTE: $*"); }
inf() { printf ' %s\n' "$*"; }
phase(){ printf '\n\033[1m══ %s\033[0m\n' "$*"; }
aud() { audit+=("$*"); } # an answer for the #15 audit
wait_box() { # poll until exec answers (the VM agent can take a while), ~4 min
# 2 min was too short: run 17's legacy box came up AFTER the window closed —
# the drill called it dead and then every migration check on it passed.
local b="$1" _i
for _i in $(seq 1 120); do
box exec "$b" -- true >/dev/null 2>&1 && return 0
sleep 2
done
return 1
}
# Read from inside a box WITHOUT ever hanging the drill.
#
# Two traps, both hit for real:
# · 'box exec' becomes 'sudo -u <template user> -i' — a LOGIN zsh (oh-my-zsh and
# all). Fine for a person, needless machinery for a probe.
# · $( ) waits for stdout to CLOSE, not for the command to exit. A grandchild
# inheriting the exec session's stdout keeps the substitution open forever,
# and 'timeout' does not save you: it kills the wrapper, not the holder of
# the pipe. Run 4 hung 10+ minutes on exactly this.
# So: talk to 'incus exec' directly, pin stdin to /dev/null, land the output in
# a file (never a pipe), and hard-kill on timeout.
in_box() {
local b="$1"; shift
local out; out="$(mktemp)"
timeout -k 5 20 incus exec "$b" -- "$@" >"$out" 2>/dev/null </dev/null
local rc=$?
cat "$out"; rm -f "$out"
return "$rc"
}
# The box's address ON BOXNET. Three ways to get this wrong, all of them hit:
# · 'incus list' name filters are NOT regexes ("^b$" silently matches nothing)
# · its CSV quotes a multi-address box across lines
# · and the interface is NOT called eth0. The PROFILE names the device eth0,
# but inside a VM guest predictable naming renames it enp5s0. Six runs of
# A3 "not probed" were this, not the network.
# So: read it from inside the box, and select by SUBNET (what boxnet hands
# out — read off the network, never hardcoded: BOX_SUBNET moves it, #80)
# rather than by interface name — docker0 (172.17.x) is the decoy, and the
# NIC's name is the guest's business, not ours.
boxnet_gw() { incus network get boxnet ipv4.address 2>/dev/null | cut -d/ -f1; }
boxnet_ip() {
local b="$1" ip _i pfx
pfx="$(boxnet_gw)"; pfx="${pfx%.*}."
for _i in $(seq 1 15); do
ip="$(in_box "$b" ip -4 -o addr show scope global \
| awk -v p="$pfx" '{ for (i = 1; i < NF; i++) if ($i == "inet" && index($(i+1), p) == 1) { split($(i+1), a, "/"); print a[1]; exit } }')"
[ -n "$ip" ] && { printf '%s\n' "$ip"; return 0; }
sleep 2
done
return 1
}
# The probe. Its verdict comes from curl's MESSAGE, never from its exit code.
#
# curl exit 7 is "failed to connect" — and it covers BOTH of these:
# · "Connection refused" → a RST came back. The packet ARRIVED. Reachable.
# · "Could not connect to server" / "No route to host" → nothing came back at
# all. The frame went nowhere. ISOLATED.
# Opposite conclusions, one exit code. The drill mapped 7 → "it arrived" and so
# reported a WORKING boundary as a broken one, run after run, while the kernel
# had 'isolated on' the bridge ports the whole time. A refusal is instant; an
# unreachable host burns the timeout. The words say which; the number cannot.
#
# Never hangs: incus exec directly (no login shell), stdin pinned, output landed
# in a file rather than a pipe, hard kill on timeout.
box_probe() { # box_probe <box> <url> [timeout] → reachable | refused | dropped
local b="$1" url="$2" t="${3:-5}" out rc msg
out="$(mktemp)"
timeout -k 5 $((t + 15)) incus exec "$b" -- curl -sS -m "$t" -o /dev/null "$url" \
>/dev/null 2>"$out" </dev/null
rc=$?
msg="$(cat "$out")"; rm -f "$out"
if [ "$rc" -eq 0 ]; then echo reachable; return; fi
case "$msg" in
*"Connection refused"*) echo refused ;; # it ARRIVED, and was rejected
*) echo dropped ;; # nothing came back
esac
}
box_pings() { # box_pings <box> <ip> → 0 if it answers ICMP
timeout -k 5 20 incus exec "$1" -- ping -c1 -W2 "$2" >/dev/null 2>&1 </dev/null
}
# Mint with a heartbeat. box new's own narration lands in the log; a dot every
# 5s on the drill's terminal proves the run is ALIVE — a silent multi-minute
# mint is indistinguishable from a wedge, and that ambiguity has cost whole
# evenings. The log line says where to watch the real progress.
mint_box() { # mint_box <log> <box-new args...> → box new's exit code
local log="$1"; shift
inf "watch it live in another terminal: tail -f $log"
box new "$@" >"$log" 2>&1 </dev/null &
local pid=$!
while kill -0 "$pid" 2>/dev/null; do printf '.'; sleep 5; done
printf '\n'
wait "$pid"
}
# --- stage 1: consent, install, then re-enter inside the incus-admin group ---
if [ "${IN_GROUP:-0}" != 1 ]; then
if [ "$YES" -ne 1 ]; then
cat <<EOF
This will, ON THIS HOST ($(hostname)):
· install Incus and a systemd unit
· create a network (boxnet), an ACL, and a profile
· rewrite firewall rules (nft or UFW, and Docker's DOCKER-USER chain)
· create and destroy instances named: drill, clone, archive, peer, payroll, cbprobe, cbcopy, tpl, codex, grok, legacybox
· build a faithful legacy stack (claudenet/10.87, claude-dev) to drill migration
Only do this on a machine you can format.
EOF
[ -t 0 ] || { echo "drill: no TTY to confirm on — pass --yes if you mean it." >&2; exit 2; }
printf 'Continue? [y/N] '
read -r reply
case "$reply" in y|Y|yes) ;; *) echo "stopped."; exit 1 ;; esac
fi
phase "Installing box ($REPO@$REF)"
# Sudo, up front and out loud. Later calls run unattended, and a password
# prompt swallowed by a '-qq' redirect looks exactly like a hang. This now
# has to precede the install too: install.sh runs the host setup itself, so
# the first thing needing root is no longer further down — it is inside the
# very next command.
sudo -v || { echo "drill: need sudo (the host setup installs packages and firewall rules)"; exit 1; }
# Pre-setup observations must be READ BEFORE install.sh, because install.sh
# is now what runs setup-host. Read after it and setup has already had its
# chance to act, so the observation says nothing.
# setup-host.sh installs nftables itself when neither nft nor UFW exists
# (a stock Debian 13 cloud image ships neither). This is a tripwire: if it
# fires, that fix regressed.
fw_absent_pre=0
if ! command -v nft >/dev/null 2>&1 && ! command -v ufw >/dev/null 2>&1; then
fw_absent_pre=1
fi
# DRILL_OWNS_SETUP=1 opts out of the installer's automatic setup and puts the
# drill back in charge of sequencing it (install, then clean, then converge).
# The DEFAULT deliberately does not: a drill that runs setup-host itself right
# after installing cannot tell you whether install.sh did its job, because the
# drill's own call would build the stack either way. The default path exercises
# what a user actually runs, and asserts the result in-group below.
OWNS="${DRILL_OWNS_SETUP:-0}"
if [ "$OWNS" = 1 ]; then
export BOX_SKIP_SETUP_HOST=1
fi
# The installer converges when a version is already installed (0.7.0's
# versioned layout: re-running the same version is a no-op, and an upgrade
# lands side-by-side without flipping under boxes). The drill re-proves a
# tree from SCRATCH every run — a fresh host, not a converged one — so it
# removes the whole install root and symlink first.
rm -rf "$HOME/.local/share/box" "$HOME/.local/bin/box"
# The installer prompts (install? set up host?) and reads /dev/tty. The drill
# runs unattended with no tty, so it answers yes to everything via BOX_YES.
# OWNS still suppresses the setup prompt via BOX_SKIP_SETUP_HOST above.
export BOX_YES=1
BOX_REPO="$REPO" BOX_REF="$REF" \
bash -c "$(curl -fsSL "https://raw.githubusercontent.com/$REPO/$REF/install.sh")" \
|| { echo "install failed"; exit 1; }
export PATH="$HOME/.local/bin:$PATH"
# ASSERT WHAT LANDED — never trust that the install obeyed us.
# This has bitten twice: once on a lagged CDN tarball, once when a STALE local
# drill.sh passed the retired CLAUDEBOX_* env vars to a 0.5.0 install.sh that
# reads BOX_* — the vars were ignored, main was installed, and the run drilled
# the wrong tree while reporting success. A drill that silently drills the
# wrong code is worse than one that fails.
got="$(cat "$HOME/.local/share/box/current/INSTALLED_FROM" 2>/dev/null || echo '<unknown>')"
if [ "$got" != "$REPO@$REF" ]; then
echo "drill: FATAL — asked to install $REPO@$REF, but the tree says '$got'." >&2
echo " Your local drill.sh is probably STALE (pre-0.5.0 it passed CLAUDEBOX_*," >&2
echo " which today's install.sh ignores, so it fell back to main). Fix:" >&2
echo " git fetch origin && git checkout <the branch you mean> && git pull" >&2
echo " then re-run this drill." >&2
exit 1
fi
inf "installed tree confirms: $got"
phase "Host setup (Incus, boxnet, ACL, profile, firewall)"
if [ "$fw_absent_pre" = 1 ]; then
note "neither nft nor ufw present pre-setup — setup-host.sh must install nftables itself (it fixed this once; watch that it still does)"
fi
# apt's lock is held by apt-daily / unattended-upgrades on a fresh cloud
# image, and 'apt-get -qq >/dev/null' waits for it in COMPLETE SILENCE —
# which is how run 5 looked stuck for minutes right after this header.
# Say what we are waiting for, and give up rather than hang forever.
if ! command -v incus >/dev/null 2>&1; then
inf "installing incus (waiting for the apt lock if a background upgrade holds it)…"
if ! sudo DEBIAN_FRONTEND=noninteractive timeout 600 \
apt-get -o DPkg::Lock::Timeout=300 install -y incus; then
echo "drill: 'apt-get install incus' failed or timed out." >&2
echo " a background apt job usually holds the lock. check with:" >&2
echo " sudo fuser -v /var/lib/dpkg/lock-frontend" >&2
echo " systemctl status unattended-upgrades apt-daily.service" >&2
exit 1
fi
else
inf "incus already installed — skipping apt"
fi
# No setup-host call here any more. It used to run a full "first pass" that
# the comment described as "may only add you to incus-admin" — behaviour that
# no longer exists (setup-host converges in one run now, #63) and that, since
# install.sh runs setup itself (#64), was simply the stack being built a
# second time before the drill had asserted the first.
if [ "$OWNS" = 1 ]; then
# We opted out of the installer's setup, so nobody has joined us to the
# group yet. usermod ONLY: the stack build waits until after the clean
# below, which is the entire reason for owning the sequence.
inf "DRILL_OWNS_SETUP=1 — the drill owns the host setup"
id -nG | grep -qw incus-admin || sudo usermod -aG incus-admin "$USER"
else
inf "install.sh ran the host setup — asserting what it left, in-group, next"
fi
# setup-host's own sg re-exec was a CHILD of install.sh; this shell's
# credentials are untouched, so we still have to enter the group ourselves —
# once, for the remainder of the drill.
inf "re-entering inside the incus-admin group…"
exec sg incus-admin -c "IN_GROUP=1 DRILL_OWNS_SETUP='$OWNS' BOX_REPO='$REPO' BOX_REF='$REF' KEEP=$KEEP bash '$SELF' --in-group"
fi
export PATH="$HOME/.local/bin:$PATH"
KEEP="${KEEP:-0}"
# PROVE THE INSTALLER'S CONTRACT (#64) — first, before the clean or anything
# else on this host mutates the stack, and before the drill runs setup-host
# itself further down. That ordering is the whole point: the old flow ran
# setup-host immediately after installing, so the stack existed by the drill's
# own hand and the run passed identically whether or not install.sh had done a
# thing. This is read-only, so it is safe with a previous run's boxes still
# attached.
if [ "${DRILL_OWNS_SETUP:-0}" != 1 ]; then
phase "Asserting the stack that install.sh built"
missing=""
incus network show boxnet >/dev/null 2>&1 || missing="$missing boxnet"
incus network acl show box-isolate >/dev/null 2>&1 || missing="$missing box-isolate"
incus profile show box-net >/dev/null 2>&1 || missing="$missing box-net"
# Last thing setup-host does, so it doubles as "it ran to the end".
sudo nft list table bridge box >/dev/null 2>&1 || missing="$missing nft-bridge-box"
if [ -n "$missing" ]; then
echo "drill: FATAL — install.sh reported success but left an INCOMPLETE stack:$missing" >&2
echo " install.sh is supposed to run the host setup itself (#64), and setup-host" >&2
echo " is supposed to converge in one run (#63). One of those did not happen." >&2
echo " reproduce with the output visible:" >&2
echo " ~/.local/share/box/current/host/setup-host.sh" >&2
echo " or hand setup back to the drill: DRILL_OWNS_SETUP=1 $SELF" >&2
exit 1
fi
ok "install.sh left a complete host stack (boxnet, box-isolate, box-net, nft bridge drop) — no second setup needed"
fi
# CLEAN BEFORE SETUP, not after. setup-host.sh reconfigures the network's ACLs,
# and a previous run's boxes are still ATTACHED to that network — 'incus network
# set' then has to push the change onto every live NIC, which is how run 6
# stalled. An aborted run also leaves the D-phase mutations (dns.mode=none, NIC
# filtering) in place, so setup would be converging against a moving target.
# Take the boxes down and revert the mutations FIRST; then the host is a
# clean-ish slate and setup-host is the no-op it should be.
# A host still carrying a previous run's phase-D mutations mints boxes with no
# DNS, and then reports the resulting breakage as a finding. Refuse to run.
# NOTE: dns.mode=none is now part of the SHIPPED stack (it closes the sibling
# DNS-enumeration leak), so it is no longer "dirt" from a rehearsal — do not
# revert it. Only the vetoed NIC filtering counts as leftover.
dirty=""
for p in box-net claude-dev; do
[ -n "$(incus profile device get "$p" eth0 security.ipv4_filtering 2>/dev/null)" ] && dirty="$dirty $p:ipv4_filtering"
[ -n "$(incus profile device get "$p" eth0 security.mac_filtering 2>/dev/null)" ] && dirty="$dirty $p:mac_filtering"
done
if [ -n "$dirty" ]; then
note "this host carries the VETOED NIC filtering from an old rehearsal:$dirty — reverting"
for p in box-net claude-dev; do
incus profile device unset "$p" eth0 security.mac_filtering >/dev/null 2>&1
incus profile device unset "$p" eth0 security.ipv4_filtering >/dev/null 2>&1
done
fi
inf "clearing anything a previous run left behind…"
# One name at a time — 'incus delete -f a b c' aborts at the first MISSING name,
# which is how run 2 inherited run 1's boxes and cascaded five false FAILs.
for n in drill clone archive peer payroll cbprobe cbcopy cbnotours tpl codex grok legacybox; do
timeout -k 5 60 incus delete -f "$n" >/dev/null 2>&1
done
if incus network show boxnet >/dev/null 2>&1; then
timeout -k 5 30 incus network unset boxnet dns.mode >/dev/null 2>&1
fi
for p in box-net claude-dev; do
if incus profile show "$p" >/dev/null 2>&1; then
timeout -k 5 30 incus profile device unset "$p" eth0 security.mac_filtering >/dev/null 2>&1
timeout -k 5 30 incus profile device unset "$p" eth0 security.ipv4_filtering >/dev/null 2>&1
fi
done
left="$(incus list --format csv --columns n 2>/dev/null | tr '\n' ' ')"
[ -n "$left" ] && inf "instances still on this host (not ours, left alone): $left"
# This call stays, and it is NOT the install's setup repeated for its own sake:
# the clean above deliberately unsets dns.mode, which is part of the SHIPPED
# stack, and drops a previous run's phase-D mutations. Something has to put the
# host back together afterwards, and setup-host is that something — this is the
# "converge against a clean slate" the block above is ordered for. On the
# default path the install's setup has already been asserted, so what this
# proves is idempotency: a second run over a cleaned host is a no-op that
# restores the stack rather than a fresh build.
inf "running setup-host.sh (post-clean convergence: restores dns.mode and any reverted mutations)…"
if ! timeout -k 10 300 ~/.local/share/box/current/host/setup-host.sh; then
echo "drill: setup-host.sh failed or timed out (>5 min)." >&2
echo " it should take seconds on a host that already has incus. usual causes:" >&2
echo " · instances still attached to boxnet while its ACLs are reconfigured" >&2
echo " incus list" >&2
echo " · the firewall unit not completing" >&2
echo " systemctl status box-firewall.service --no-pager" >&2
echo " · the incus daemon wedged by an earlier aborted run" >&2
echo " systemctl status incus --no-pager; journalctl -u incus -n 30 --no-pager" >&2
exit 1
fi
inf "host setup complete"
# A real server has room for the claude-box template's resources (8GiB/4cpu), and
# drilling the real numbers is worth more than drilling shrunken ones. Only
# shrink if we must. Since 0.4.0 resources are per-box, stamped from the
# template at mint — a profile edit no longer reaches them; the supported
# override is the BOX_* environment, which every 'box new' below inherits.
ram="$(awk '/MemTotal/{print int($2/1024/1024)}' /proc/meminfo)"
if [ "$ram" -lt 20 ]; then
export BOX_MEMORY=3GiB BOX_CPU=2
note "host has ${ram}GiB RAM — minting at 3GiB/2cpu via BOX_MEMORY/BOX_CPU (the claude-box template's 8GiB/4cpu is what was NOT drilled)"
else
inf "host has ${ram}GiB RAM — drilling the claude-box template's resources (8GiB/4cpu) unchanged"
fi
KVM=0; [ -e /dev/kvm ] && KVM=1
[ "$KVM" = 1 ] && inf "/dev/kvm present — boxes will be VMs (the real trust boundary)" \
|| note "NO /dev/kvm on this host — box will fall back to CONTAINER mode, so this run does NOT validate the VM trust boundary"
# ===========================================================================
phase "A. Incus semantics — the assumptions box is built on"
# ===========================================================================
incus launch images:debian/13 cbprobe --config user.box=1 >/dev/null 2>&1
incus launch images:debian/13 cbnotours >/dev/null 2>&1 # untagged: not ours
sleep 3
# A1 — the tag read. #13 puts this on the path of EVERY box command.
t="$(incus config get cbprobe user.box 2>&1)"
[ "$t" = "1" ] && ok "config get user.box → '1'" \
|| no "config get user.box → '$t' (expected '1'; every box command would fail closed)"
# A2 — the list filter, and that it EXCLUDES an instance we didn't mint
f="$(incus list user.box=1 --format csv --columns nstS 2>&1)"
if echo "$f" | grep -q '^cbprobe,' && ! echo "$f" | grep -q '^cbnotours,'; then
ok "list filter user.box=1 selects ours, excludes theirs"
else
no "list filter user.box=1 is wrong — got: $(echo "$f" | tr '\n' ' ')"
fi
# A3 — four fields, no commas/newlines to mangle the awk table
n="$(echo "$f" | grep '^cbprobe,' | awk -F, '{print NF}')"
[ "$n" = 4 ] && ok "--columns nstS → 4 clean CSV fields" || no "--columns nstS → $n fields (the list table would garble)"
# A4 — the state string require_stopped compares against
s="$(incus list cbprobe --format csv --columns s 2>&1 | head -1)"
[ "$s" = RUNNING ] && ok "state column → 'RUNNING'" || no "state column → '$s' (require_stopped compares against RUNNING/STOPPED)"
# A5 — does rename REFUSE a running instance? #13's precondition bets it does.
if r="$(incus rename cbprobe cbprobe2 2>&1)"; then
no "incus renamed a RUNNING instance — #13's 'stopped' precondition is unnecessary (merely conservative)"
incus rename cbprobe2 cbprobe >/dev/null 2>&1
else
ok "incus refuses to rename a running instance → $(echo "$r" | head -1 | cut -c1-60)"
fi
# A6 — snapshot list CSV: 'info' reads field 1 as the label
incus snapshot create cbprobe authed >/dev/null 2>&1
s1="$(incus snapshot list cbprobe --format csv 2>&1 | head -1)"
[ "$(echo "$s1" | cut -d, -f1)" = authed ] && ok "snapshot list csv → field 1 is the label" \
|| no "snapshot list csv field 1 ≠ label — got: $s1"
# A7 — the IPv4 column. #9 assumes it can be quoted/multi-line, hence fetching it apart.
inf "ipv4 column raw: $(incus list cbprobe --format csv --columns 4 2>&1 | tr '\n' '|')"
# A8 — unset config keys read as EMPTY with exit 0 (#15 B4). The '|| echo root'
# fallback #12 first proposed could never fire if so; #17's lookup depends on this.
u="$(incus config get cbprobe user.never-set 2>&1)"; rc=$?
if [ "$rc" -eq 0 ] && [ -z "$u" ]; then
ok "config get on an unset key → empty string, exit 0"
aud "B4 config-get unset key: empty + exit 0 — #17 fallbacks must use \${var:-}, never ||"
else
note "config get on an unset key → rc=$rc out='$u' (not the documented empty+0 — #17's lookup adapts)"
aud "B4 config-get unset key: rc=$rc out='$u'"
fi
# A9 — 'incus copy' preserves user.* keys (#15 B2). #17's whole metadata design:
# a clone must still know what it is without consulting the template.
incus config set cbprobe user.box.user claude 2>/dev/null
incus stop -f cbprobe >/dev/null 2>&1
incus copy cbprobe cbcopy >/dev/null 2>&1
c="$(incus config get cbcopy user.box.user 2>/dev/null)"
if [ "$c" = claude ]; then
ok "incus copy preserves user.* keys (a clone knows what it is)"
aud "B2 copy preserves user.*: YES — #17's metadata-stamp design holds"
else
no "incus copy DROPPED user.* keys (got '$c') — #17's metadata design fails without them"
aud "B2 copy preserves user.*: NO — #17 blocked as designed"
fi
incus delete -f cbcopy >/dev/null 2>&1
incus delete -f cbprobe cbnotours >/dev/null 2>&1
# ===========================================================================
phase "B. The box surface"
# ===========================================================================
# Compare against the installed tree's VERSION file, not a hardcoded number —
# a pinned literal here would fail the drill on every release.
expected="$(cat "$HOME/.local/share/box/current/VERSION" 2>/dev/null || echo '?')"
v="$(box --version 2>&1)"
case "$v" in *"$expected"*) ok "box --version → $v" ;; *) no "version mismatch: CLI says '$v', VERSION file says '$expected'" ;; esac
# The drill must not require an empty host: operator boxes tagged
# user.box=1 (or the legacy tag) are legitimate tenants, and the teardown below deliberately
# refuses to touch them. The empty-host message is only TESTABLE when the host
# is actually empty — on a shared host, skip it instead of failing it.
tenants="$({ incus list user.box=1 --format csv --columns n 2>/dev/null
incus list user.claudebox=1 --format csv --columns n 2>/dev/null; } | sort -u | tr '\n' ' ')"
if [ -n "${tenants% }" ]; then
inf "host already has boxes (${tenants% }) — the empty-host message cannot be tested this run"
else
box list >/dev/null 2>&1 && box list 2>&1 | grep -q 'no boxes yet' \
&& ok "empty host: 'no boxes yet', exit 0" || no "empty-host message wrong"
fi
# --- templates: the mint surface is itself a surface to test ----------------
tpl_missing=""
for t in blank claude-box codex-box grok-box; do
box templates 2>/dev/null | grep -q "^ $t" || tpl_missing="$tpl_missing $t"
done
[ -z "$tpl_missing" ] && ok "templates: lists blank, claude-box, codex-box, grok-box" \
|| no "templates listing is missing:$tpl_missing"
box new --name tpl --template nosuch 2>&1 | grep -q 'no such template' \
&& ok "unknown template refused, points at 'box templates'" || no "an unknown template was not refused"
# The one rule that keeps templates honest: no key can name a network. Plant a
# bad template in the installed tree (the drill owns this host), expect the
# parser to reject it BY NAME, remove it.
badt="$HOME/.local/share/box/current/templates/cbdrill-bad"
mkdir -p "$badt" && printf 'BOX_IMAGE="x"\nBOX_USER="y"\nBOX_NETWORK="lan"\n' >"$badt/box.env" && : >"$badt/user-data.yaml"
box new --name tpl --template cbdrill-bad 2>&1 | grep -q "unknown key 'BOX_NETWORK'" \
&& ok "a template cannot name a network — BOX_NETWORK rejected by name" \
|| no "a box.env key outside the allowlist was ACCEPTED — a template could weaken isolation"
rm -rf "$badt"
# Inline resource flags (#57): refused on a clone, honored on a mint. The
# mint proof rides the blank box below — and because this drill exports
# BOX_CPU/BOX_MEMORY on small hosts, it is also the precedence proof
# (flag > env > template > default).
box new --name tpl --from nowhere --cpu 2 2>&1 | grep -q 'carries its source' \
&& ok "resource flags refused on --from — a clone carries its source's resources" \
|| no "--from accepted a resource flag (should refuse: clone resources come from the source)"
printf '\n minting a blank box (the DEFAULT template — no tooling, fast)…\n'
t0=$SECONDS
if mint_box /tmp/mint-tpl.log --name tpl --cpu 1 --memory 1GiB; then
ok "box new --name tpl, no --template ($((SECONDS - t0))s)"
tt="$(incus config get tpl user.box.template 2>/dev/null)"
[ "$tt" = blank ] && ok "the default template is blank (user.box.template=blank)" \
|| no "default template is '${tt:-<unset>}' — expected blank"
rc="$(incus config get tpl limits.cpu 2>/dev/null)/$(incus config get tpl limits.memory 2>/dev/null)"
[ "$rc" = "1/1GiB" ] && ok "inline --cpu/--memory landed (limits = $rc, beating BOX_* env)" \
|| no "inline resource flags did not land — limits are $rc, expected 1/1GiB"
[ "$(incus config get tpl user.box.user 2>/dev/null)" = dev ] \
&& ok "template user stamped on the instance (user.box.user=dev)" || no "user.box.user not stamped"
incus config show tpl 2>/dev/null | grep -q '^- box-net' \
&& ok "blank box launched with the box-net profile — same placement contract" \
|| no "blank box is NOT on box-net — a template picked its own placement?!"
u="$(timeout -k 5 30 box exec tpl -- whoami </dev/null 2>/dev/null | tr -d '[:space:]')"
[ "$u" = dev ] && ok "exec lands in the template's user ($u) — nothing hardcodes claude" \
|| no "exec landed in '${u:-<nothing>}', expected dev"
timeout -k 5 30 box exec tpl -- sh -lc 'command -v claude' </dev/null >/dev/null 2>&1 \
&& no "the blank box has claude installed — 'blank' is not blank" \
|| ok "blank box has no claude — nobody home, as designed"
box_pings tpl 1.1.1.1 && ok "blank box reaches the internet (same egress as any template)" \
|| no "blank box has NO egress — isolation parity broken"
in_box tpl getent hosts deb.debian.org >/dev/null 2>&1 \
&& ok "blank box resolves public names (pinned resolver serves every template)" \
|| no "blank box cannot resolve — DNS parity broken"
box rm tpl --force >/dev/null 2>&1 && ok "blank box removed" || no "could not remove the blank box"
else
no "blank mint FAILED — tail: $(tail -3 /tmp/mint-tpl.log | tr '\n' ' ')"
# Tear the stuck box down — a failed mint that lingers starves the next one.
timeout -k 5 60 incus delete -f tpl >/dev/null 2>&1
fi
# The generic mechanic (metadata, placement, user, isolation parity) is proven
# once by blank+claude-box and needs no per-template repeat. What a NEW template
# still has to prove is its own payload: the CLI installs, lands on the
# non-interactive exec PATH, and answers --version. One mint each.
# The box NAME stays the bare agent name — it is what the pre-flight banner
# announces and what teardown deletes — while the TEMPLATE carries rig#76's
# family suffix. They are two different namespaces and only one of them moved.
for t in codex grok; do
case "$t" in codex) bin=codex; user=codex ;; grok) bin=grok; user=grok ;; esac
printf '\n minting a %s box (cold — validates the template install)…\n' "$t"
if mint_box "/tmp/mint-$t.log" --name "$t" --template "$t-box"; then
[ "$(incus config get "$t" user.box.user 2>/dev/null)" = "$user" ] \
&& ok "$t: template user stamped ($user)" || no "$t: user.box.user not $user"
if timeout -k 5 30 box exec "$t" -- "$bin" --version </dev/null >/dev/null 2>&1; then
ok "$t: '$bin --version' answers via box exec — installed and on the non-interactive PATH"
else
no "$t: '$bin --version' FAILED via exec — not installed, or not on exec's PATH (the claude-box template's #15 bug)"
inf "PATH as exec sees it: $(timeout -k 5 20 box exec "$t" -- printenv PATH </dev/null 2>/dev/null)"
# Do not throw the evidence away — say WHAT the installer actually left.
# Do NOT throw the evidence away — say what the installer actually left
# behind, and what its own log said. Guessing at an upstream installer's
# layout is how this FAILed in the first place.
inf "anything named '$t' on disk:"
in_box "$t" sh -c "find /home /opt /usr/local /usr/bin -maxdepth 4 \\( -type f -o -type l \\) -iname '*$t*' 2>/dev/null | head -8" \
| sed 's/^/ /'
inf "what its cloud-init said:"
in_box "$t" sh -c "grep -iE '$t|install' /var/log/cloud-init-output.log 2>/dev/null | tail -8" \
| sed 's/^/ /'
fi
box rm "$t" --force >/dev/null 2>&1 && ok "$t box removed" || no "$t: could not remove"
else
no "$t mint FAILED — tail: $(tail -3 "/tmp/mint-$t.log" | tr '\n' ' ')"
timeout -k 5 60 incus delete -f "$t" >/dev/null 2>&1
fi
done
printf '\n minting a claude-box box (cold, ~10 min)…\n'
t0=$SECONDS
if mint_box /tmp/mint-drill.log --name drill --template claude-box; then
ok "box new --name drill --template claude-box ($((SECONDS - t0))s)"
else
no "box new FAILED — tail: $(tail -3 /tmp/mint-drill.log | tr '\n' ' ')"
timeout -k 5 60 incus delete -f drill >/dev/null 2>&1
echo; echo "── cannot continue without a box"; printf ' %s\n' "${findings[@]}"; exit 1
fi
typ="$(box list | awk '$1 == "drill" { print $3 }')"
if [ "$KVM" = 1 ]; then
[ "$typ" = VM ] && ok "the box is a VM — the trust boundary is real" \
|| no "the box is '$typ' but /dev/kvm exists — it should have been a VM"
else
note "the box is '$typ' (no /dev/kvm on this host)"
fi
box info drill | grep -q '^IPV4' && ok "info shows an IPv4" || no "info has no IPV4 row"
box info drill | grep -q 'SNAPSHOTS (none)' && ok "info: no snapshots yet, offers to take one" || no "info snapshot-empty state wrong"
if box exec drill -- claude --version >/dev/null 2>&1; then
ok "Claude Code is installed in the box"
elif timeout 30 box exec drill -- bash -lc 'claude --version' >/dev/null 2>&1; then
no "'claude' is installed but NOT on exec's PATH — repo bug: the help promises 'box exec work -- claude --version'"
inf "PATH as exec sees it: $(timeout 30 box exec drill -- printenv PATH 2>/dev/null)"
else
no "'claude --version' failed inside the box"
# diag output must skip the hatch's own 'box: incus exec …' announce lines
hatch_out() { timeout 30 box incus drill -- exec {} -- "$@" 2>&1 | grep -v '^box:' | tail -1 | cut -c1-120; }
inf "cloud-init: $(hatch_out cloud-init status)"
inf "binary runs? $(hatch_out sudo -u claude /home/claude/.local/bin/claude --version)"
inf "exec PATH: $(timeout 30 box exec drill -- printenv PATH 2>/dev/null | tail -1)"
fi
box exec drill -- gh --version >/dev/null 2>&1 \
&& ok "the GitHub CLI is installed in the box (PR #5)" || no "'gh --version' failed inside the box"
# --- the snapshot → clone workflow, which is the whole point of the tool ---
box snapshot drill authed 2>&1 | grep -q authed && ok "snapshot drill authed" || no "snapshot failed"
box info drill | grep -q 'authed' && ok "info lists the snapshot label" || no "info does not show the label"
box info drill | grep -q -- '--from drill/authed' && ok "info prints the --from line to clone it" || no "info lacks the --from hint"
# --- the boundary: an instance box did NOT mint ----------------------
incus launch images:debian/13 payroll >/dev/null 2>&1 # somebody else's instance
sleep 2
box down payroll 2>&1 | grep -q 'no such box' && ok "boundary: 'down' refuses an untagged instance" || no "boundary: 'down' touched an instance box didn't mint!"
box rm payroll --force 2>&1 | grep -q 'no such box' && ok "boundary: 'rm' refuses an untagged instance" || no "boundary: 'rm' would DELETE a foreign instance!"
box incus payroll -- config show 2>&1 | grep -q 'no such box' && ok "boundary: the escape hatch refuses it too" || no "boundary: the hatch reached a foreign instance!"
incus list payroll --format csv --columns ns | grep -q '^payroll,RUNNING' && ok "…and payroll is still running, untouched" || no "payroll was harmed — the boundary leaked"
incus delete -f payroll >/dev/null 2>&1
# --- rename, and its precondition -----------------------------------------
box rename drill archive 2>&1 | grep -qi 'RUNNING' && ok "rename refuses a running box, and says how to fix it" || no "rename did not refuse a running box"
box down drill >/dev/null 2>&1 && ok "down drill" || no "down failed"
box rename drill archive 2>&1 | grep -q 'renamed drill to archive' && ok "rename drill → archive (stopped)" || no "rename failed on a stopped box"
box list | grep -q '^archive' && ok "list shows the new name" || no "list still shows the old name"
box info archive | grep -q authed && ok "the snapshot followed the rename" || no "snapshot lost across the rename"
# --- clone from a snapshot of a renamed box --------------------------------
printf '\n cloning from the snapshot…\n'
if mint_box /tmp/mint-clone.log --name clone --from archive/authed; then
ok "new --from archive/authed (clone of a snapshot of a renamed box)"
box exec clone -- true >/dev/null 2>&1 && ok "the clone is alive and enterable" || no "the clone is not enterable"
else
no "clone FAILED — tail: $(tail -3 /tmp/mint-clone.log | tr '\n' ' ')"
fi
# --- the escape hatch ------------------------------------------------------
box incus archive -- config show 2>/dev/null | grep -q 'user.box' && ok "hatch: 'incus archive -- config show', instance appended" || no "hatch passthrough failed"
h="$(box incus archive -- config device add {} scratch disk source=/tmp path=/mnt/scratch 2>&1)"
echo "$h" | grep -q 'isolation stack' && ok "hatch warns when a command can break isolation" || no "hatch did not warn on a device add"
box incus archive -- config device remove {} scratch >/dev/null 2>&1
# --- rm, and the guard that did not used to exist --------------------------
box rm clone </dev/null 2>&1 | grep -q 'refusing' && ok "rm with no TTY and no --force refuses (exit 2)" || no "rm destroyed a box with no confirmation!"
box rm clone --force 2>&1 | grep -q 'removed' && ok "rm --force removes the clone" || no "rm --force failed"
# --- the CLI contract ------------------------------------------------------
box lst 2>&1 | grep -q "did you mean 'list'" && ok "typo → did-you-mean, exit 2" || no "unknown command not suggested"
box list archive 2>&1 | grep -q 'box info archive' && ok "'list <box>' points at info" || no "'list <box>' does not point at info"
box snapshot archive --labl x 2>&1 | grep -q 'unknown option' && ok "typo'd flag rejected (not swallowed as a label)" || no "unknown flag was swallowed"
# ===========================================================================
phase "C. Isolation baseline — does the boundary actually hold? (#15 section A)"
# ===========================================================================
box start archive >/dev/null 2>&1
wait_box archive && ok "archive is back up (agent answering)" \
|| no "archive did not come back within 2 min of start"
# Sibling isolation needs a sibling. Clone from the snapshot — fast, no cold mint.
printf '\n cloning a peer for the sibling probes…\n'
if mint_box /tmp/mint-peer.log --name peer --from archive/authed && wait_box peer; then
ok "peer minted from archive/authed and answering"
else
no "peer clone failed or never answered — tail: $(tail -3 /tmp/mint-peer.log | tr '\n' ' ')"
fi
# C1 — public egress (#15 A1; resolving the hostname also proves A5, gateway DNS)
BASELINE_OK=1
if [ "$(box_probe archive https://api.github.com 20)" = reachable ]; then
ok "box reaches the public internet (and gateway DNS resolves public names)"
aud "A1/A5 egress + public DNS: PASS"
else
BASELINE_OK=0
no "box cannot reach the internet (a box that can't is useless)"
aud "A1/A5 egress: FAIL"
fi
# C2 — box → host (#15 A2). The host DOES listen on the gateway: dnsmasq is on
# :53 by design (that carve-out is what makes egress DNS work). So probe a port
# nothing serves and read refused-vs-dropped — refused would mean the box's
# packet reached the host's stack, which is the thing the firewall must prevent.
# (No background listener: one less process to leak, one less way to wedge.)
gw="$(boxnet_gw)"
hv="$(box_probe archive "http://$gw:8099")"
case "$hv" in
reachable|refused)
no "THE BOX'S PACKETS REACH THE HOST on $gw:8099 [$hv] — the firewall rules are not holding"
aud "A2 box→host: FAIL — $hv (the packet reached the host's stack)" ;;
dropped)
ok "box → host is blocked (no path to the machine's sockets)"
aud "A2 box→host: dropped" ;;
*)
note "box→host probe inconclusive ($hv)"
aud "A2 box→host: INCONCLUSIVE ($hv)" ;;
esac
# C3 — RFC1918 (#15 A2)
case "$(box_probe archive http://192.168.1.1)" in
reachable|refused)
no "box REACHED a private-range address — the ACL is not dropping RFC1918"
aud "A2 RFC1918: FAIL" ;;
*)
ok "box → RFC1918 is dropped by the ACL"
aud "A2 RFC1918: dropped" ;;
esac
# C4 — SIBLING isolation (#15 A3): the central claim of #12, and the one probe
# three runs failed to fire. NO listener on the peer, deliberately — a closed
# port answers the question just as well (refused = the packet arrived), and
# the listener was what kept wedging the run. Ping corroborates: if the two
# disagree, say so rather than pick one.
PEER_IP="$(boxnet_ip peer)"
ARCH_IP_PRE="$(boxnet_ip archive)"
if [ -n "$PEER_IP" ] && [ "$PEER_IP" = "$ARCH_IP_PRE" ]; then
# Guard, because this actually happened: a clone inherited its source's
# machine-id, hence its DHCP lease, hence its ADDRESS. Probing "archive →
# peer" was archive probing itself, and would have reported a cheerful
# "reachable" as a sibling-isolation failure. Never let A3 answer this.
no "archive and peer hold the SAME address ($PEER_IP) — the clone did not get its own identity; A3 cannot be probed"
aud "A3 sibling: NOT PROBED — clone/source IP collision (see the clone-identity fix)"
elif [ -n "$PEER_IP" ]; then
inf "probing archive ($ARCH_IP_PRE) → peer ($PEER_IP): a REFUSAL means it arrived; silence means it was dropped"
v="$(box_probe archive "http://$PEER_IP:8088")"
box_pings archive "$PEER_IP"; png=$?
if [ "$v" = reachable ] || [ "$v" = refused ]; then
no "BOX A REACHES BOX B ($PEER_IP) — sibling isolation does NOT hold [tcp: $v]"
aud "A3 sibling: FAIL — tcp $v (the packet arrived)"
elif [ "$png" -eq 0 ]; then
no "TCP to box B goes nowhere, but it ANSWERS ICMP — sibling isolation is only partial"
aud "A3 sibling: PARTIAL — tcp dropped, ping replies"
else
ok "box A cannot reach box B: TCP goes nowhere, ICMP unanswered"
aud "A3 sibling: BLOCKED — tcp dropped + no icmp reply (security.port_isolation)"
fi
else
no "could not read peer's boxnet address — the sibling probe never ran"
aud "A3 sibling: NOT PROBED (no boxnet address on peer)"
fi
# C5 — DNS enumeration (#15 A4). Now a CONTRACT, not an observation: setup-host
# sets dns.mode=none precisely so a box cannot enumerate its siblings.
e1="$(in_box archive getent hosts peer)"
e2="$(in_box archive getent hosts peer.incus)"
if [ -n "$e1$e2" ]; then
no "a box can still RESOLVE its sibling ($(printf '%s' "$e1$e2" | head -1 | cut -c1-40)) — dns.mode=none is not holding"
aud "A4 dns enumeration: LEAKS — the fix is not in effect"
else
ok "a box cannot resolve its sibling's name (no DNS enumeration)"
aud "A4 dns enumeration: blocked (dns.mode=none)"
fi
# C6 — IPv6 off (#15 A6): every ACL rule is IPv4-only; off is the only cover.
[ "$(incus network get boxnet ipv6.address 2>/dev/null)" = none ] \
&& { ok "boxnet ipv6.address = none (the IPv4-only ACLs have no uncovered path)"; aud "A6 ipv6: none, as contract requires"; } \
|| { no "boxnet has IPv6 enabled — and not one ACL rule covers IPv6"; aud "A6 ipv6: ENABLED and uncovered"; }
# C7 — inbound, host → box (#15 A7): the ACL's default ingress drop. Same
# listener-free logic, run from the host this time.
ARCH_IP="$(boxnet_ip archive)"
if [ -n "$ARCH_IP" ]; then
hmsg="$(curl -sS -m 5 -o /dev/null "http://$ARCH_IP:8087" 2>&1)"; hrc=$?
if [ "$hrc" -eq 0 ]; then hv=reachable
elif printf '%s' "$hmsg" | grep -q 'Connection refused'; then hv=refused
else hv=dropped
fi
case "$hv" in
reachable|refused)
no "the HOST's packets REACH the box ($ARCH_IP) — the default ingress drop is not holding [$hv]"
aud "A7 inbound host→box: FAIL — $hv (the packet arrived)" ;;
dropped)
ok "host → box is dropped (entry is 'incus exec' only, as designed)"
aud "A7 inbound host→box: dropped" ;;
*)
note "inbound probe inconclusive ($hv)"
aud "A7 inbound host→box: INCONCLUSIVE ($hv)" ;;
esac
else
no "could not read archive's boxnet address — the inbound probe never ran"
aud "A7 inbound host→box: NOT PROBED"
fi
# ===========================================================================
phase "E. box expose — a deliberate loopback door (#55)"
# ===========================================================================
# archive is a running claude-box box (node is installed). Start a DETACHED
# listener on 0.0.0.0 inside it, expose the port, and prove the door works
# from the HOST's loopback. Then prove removing it closes the door, and that a
# NON-exposed port still obeys the ingress drop — the feature must not
# globally weaken A7.
EP=8091; EHP=18091
srv="$(mktemp)"
printf 'require("http").createServer((q,r)=>r.end("box-expose-ok")).listen(%s,"0.0.0.0")\n' "$EP" >"$srv"
if incus file push "$srv" archive/tmp/srv.js >/dev/null 2>&1; then
rm -f "$srv"
# Detached: setsid + all fds redirected so 'incus exec' returns at once and
# nothing holds its stdout (trap 2/3). The listener outlives the exec.
timeout -k 5 20 incus exec archive -- sh -c 'setsid node /tmp/srv.js >/tmp/srv.log 2>&1 </dev/null &' </dev/null
sleep 3
xlog="$(mktemp)"
if box expose archive "$EP" "$EHP" >"$xlog" 2>&1; then
ok "box expose archive $EP $EHP — the device was added"
box expose archive --list 2>/dev/null | grep -q "$EP" \
&& ok "expose --list shows the open door" || no "expose --list does not show the exposure"
box info archive 2>/dev/null | grep -qi "$EP" \
&& ok "box info surfaces the exposure (a box with a hole says so)" || note "box info does not mention the exposure (nice-to-have)"
# THE test: does the host's loopback reach the box's server?
sleep 2
if curl -sS -m 6 "http://127.0.0.1:$EHP" 2>/dev/null | grep -q box-expose-ok; then
ok "127.0.0.1:$EHP reaches the box's server — the door WORKS"
else
no "127.0.0.1:$EHP does NOT reach the box — the proxy/ACL mechanism needs work (#55)"
inf "srv.log inside the box: $(in_box archive cat /tmp/srv.log 2>/dev/null | tail -2 | tr '\n' ' ')"
fi
# A NON-exposed port must still be dropped — the feature is per-port, not a
# global ingress opening.
nemsg="$(curl -sS -m 5 -o /dev/null "http://$ARCH_IP:9099" 2>&1)"
printf '%s' "$nemsg" | grep -q 'Connection refused' \
&& no "a non-exposed port answered on the box — expose opened ingress too wide" \
|| ok "a non-exposed port is still dropped — expose is per-port, A7 survives"
# Close it, and confirm the door shuts.
box expose archive --remove "$EP" >/dev/null 2>&1 && ok "box expose --remove closed the device" || no "expose --remove failed"
sleep 2
curl -sS -m 5 -o /dev/null "http://127.0.0.1:$EHP" 2>/dev/null \
&& no "the host still reaches the box after --remove — the door did not shut" \
|| ok "after --remove, 127.0.0.1:$EHP is dead — the door shut"
else
no "box expose failed to add the device"
inf "what box and incus actually said:"
sed 's/^/ /' "$xlog" 2>/dev/null
rm -f "$srv" 2>/dev/null
fi
rm -f "$xlog" 2>/dev/null
timeout -k 5 15 incus exec archive -- pkill -f srv.js </dev/null >/dev/null 2>&1
else
rm -f "$srv"
no "could not push the test server into archive — expose phase did not run"
fi
# ===========================================================================
phase "D. The isolation contract, stated"
# ===========================================================================
# Phase D used to REHEARSE the hardening on a throwaway host, because nobody
# knew whether it would work. That question is settled: the hardening now ships
# in setup-host.sh and box-firewall.sh, so phase C tests the real thing
# and there is nothing left to rehearse. What the rehearsal established, kept
# here so it is not re-litigated:
#
# · @internal is REJECTED as an ACL destination on a bridge network
# ("Unsupported nftables subject") — so the sibling drop is an nftables
# bridge-family rule, not an ACL rule. It has to be: an L3 ACL never sees
# frames switched between two ports of one bridge, which is why box→box was
# wide open while the ACL looked airtight.
# · dns.mode=none closes the enumeration leak and public egress survives it.
# · security.ipv4_filtering BREAKS the box's networking (dockerd comes up but
# cannot pull or run a container). VETOED — it is not in the shipped stack.
#
inf "@internal: unsupported on bridge ACLs ⇒ the sibling drop is an nft bridge rule"
inf "dns.mode=none: shipped (closes DNS enumeration, egress unaffected)"
inf "security.ipv4_filtering: VETOED — it breaks the box. Not shipped."
inf "the contract is now tested in phase C against the real stack, not rehearsed"
# The lesson that cost the most: a verdict measured on a broken box is not a
# verdict. Run 7 reported "L2 filtering BREAKS the box" from a box whose network
# was already dead, and #16 was nearly redesigned around it. If the baseline
# failed, say plainly that phase C's isolation results cannot be trusted.
if [ "$BASELINE_OK" -ne 1 ]; then
no "the box could not reach the internet AT ALL — every isolation result above is suspect, not a pass"
inf "a boundary that 'holds' on a box with no network holds nothing. fix the baseline, re-run."
inf "start with: bash drill/doctor.sh"
fi
# ===========================================================================
phase "M. Migration — the pre-0.4.0 → box transition (host/migrate-host.sh)"
# ===========================================================================
# A fresh host has no legacy stack, so build a faithful one: claudenet on the
# OLD subnet, a claude-dev profile pinned to it, and a box tagged with the OLD
# tag on the OLD network — exactly what a pre-0.4.0 host carries. Then prove
# migrate-host.sh moves it onto the new stack with its identity intact, and
# retires the legacy stack only once it is empty.
MIG="$HOME/.local/share/box/current/host/migrate-host.sh"
if [ ! -f "$MIG" ]; then
no "migrate-host.sh not installed — cannot drill the transition"
else
inf "building a faithful legacy stack (claudenet/10.87 + claude-dev)…"
incus network show claudenet >/dev/null 2>&1 || incus network create claudenet \
ipv4.address=10.87.0.1/24 ipv4.nat=true ipv6.address=none >/dev/null 2>&1
if ! incus profile show claude-dev >/dev/null 2>&1; then
incus profile create claude-dev >/dev/null 2>&1
incus profile device add claude-dev root disk pool=default path=/ >/dev/null 2>&1
incus profile device add claude-dev eth0 nic network=claudenet name=eth0 \
security.port_isolation=true >/dev/null 2>&1
fi
# A minimal legacy box: no template payload, just boots and networks on the
# old stack, wearing the old tag. This is what migrate has to move.
printf '\n minting a faithful legacy box on the old stack…\n'
# The legacy box must carry a 'claude' user, because that is what a real
# pre-0.4.0 box had — and box_user() maps the legacy tag to it. Without the
# user, 'box exec' (sudo -u claude) can never answer and wait_box fails
# forever on a box that is perfectly healthy. Run 17/18 lost a FAIL to this.
if mint_legacy=$(incus launch images:debian/13/cloud legacybox --profile claude-dev \
--config user.claudebox=1 --vm --device root,size=20GiB \
--config security.secureboot=false \
--config cloud-init.user-data="$(printf '#cloud-config\nusers:\n - name: claude\n shell: /bin/bash\n sudo: "ALL=(ALL) NOPASSWD:ALL"\n lock_passwd: true\n')" 2>&1); then
wait_box legacybox && ok "legacy box up on the old stack (claudenet, user.claudebox=1)" \
|| no "legacy box never came up — cannot drill migration"
box list 2>/dev/null | grep -q '^legacybox' \
&& ok "box list shows the legacy box (dual-tag matching)" || no "legacy box invisible to 'box list'"
# Retire must REFUSE while a legacy box exists.
bash "$MIG" --retire-legacy 2>&1 | grep -qi 'legacy boxes still exist' \
&& ok "retire-legacy refuses while a legacy box remains" \
|| no "retire-legacy did NOT refuse with a legacy box present — it would strip an in-use stack"
# Re-home it.
printf ' re-homing the legacy box…\n'
bash "$MIG" --box legacybox 2>&1 | sed 's/^/ /'
[ "$(incus config get legacybox user.box 2>/dev/null)" = 1 ] \
&& ok "migrate: legacy box now tagged user.box=1" || no "migrate: user.box tag not set"
[ "$(incus config get legacybox user.box.user 2>/dev/null)" = claude ] \
&& ok "migrate: legacy box mapped to the claude user" || no "migrate: user.box.user not claude"
incus config show legacybox 2>/dev/null | grep -q '^- box-net' \
&& ok "migrate: legacy box reassigned to box-net (the new placement contract)" \
|| no "migrate: legacy box is NOT on box-net"
lip="$(boxnet_ip legacybox)"
[ -n "$lip" ] && ok "migrate: legacy box got a boxnet address ($lip) — network move landed" \
|| no "migrate: legacy box has no boxnet address — the move did not take"
in_box legacybox getent hosts deb.debian.org >/dev/null 2>&1 \
&& ok "migrate: re-homed box resolves + reaches the internet on its new leg" \
|| no "migrate: re-homed box cannot resolve on boxnet"
# No legacy boxes remain → retire must now SUCCEED and leave nothing.
printf ' retiring the (now empty) legacy stack…\n'
bash "$MIG" --retire-legacy 2>&1 | sed 's/^/ /'
incus network show claudenet >/dev/null 2>&1 \
&& no "retire-legacy left claudenet behind" || ok "retire-legacy removed claudenet"
incus profile show claude-dev >/dev/null 2>&1 \
&& no "retire-legacy left claude-dev behind" || ok "retire-legacy removed claude-dev"
box rm legacybox --force >/dev/null 2>&1
else
no "could not launch the legacy box: $(printf '%s' "$mint_legacy" | tail -1)"
fi
fi
# ===========================================================================
if [ "$KEEP" = 1 ]; then
phase "Boxes left up (--keep-boxes)"
box list
inf "note: the D-phase mutations (dns.mode=none, NIC filtering) are still applied"
else
# every name the drill can have left, whatever branch a partial run took
for n in drill clone archive peer tpl codex grok legacybox; do box rm "$n" --force >/dev/null 2>&1; done
# Assert OUR boxes are gone — not that the host is empty. The rm loop above
# already embodies the discipline (only names the drill minted); demanding
# 'no boxes yet' here would flag any pre-existing operator box as a failure.
leftover="$(box list 2>/dev/null | grep -E '^(drill|clone|archive|peer|tpl|codex|grok)([[:space:]]|$)' || true)"
[ -z "$leftover" ] && ok "teardown: every box the drill minted is gone" \
|| no "a drill box survived teardown: $(printf '%s' "$leftover" | awk '{print $1}' | tr '\n' ' ')"
fi
phase "Summary"
printf ' %s passed, %s failed\n' "$pass" "$fail"
if [ "${#findings[@]}" -gt 0 ]; then
echo
printf ' %s\n' "${findings[@]}"
fi
if [ "${#audit[@]}" -gt 0 ]; then
phase "#15 audit answers — paste this block into heavy-duty/claudebox#15"
printf ' %s\n' "${audit[@]}"
fi
echo
inf "this host still has Incus, boxnet, the ACL, the profile and the firewall rules"
inf "(plus, unless re-run: dns.mode=none and NIC filtering from the D phase)."
inf "to undo: box uninstall --purge-host (or ~/.local/share/box/current/host/teardown-host.sh)"
[ "$fail" -eq 0 ]