RULED 2026-07-31 (GA-R5): option D -- fix the bundle AND clear the model ...

Operator utterance, verbatim: "I want to do option D: Fix the bundle by
defining the base 22.04 on each app and then clearing the modeling and
deploying from a clear model. It is very cheap to clear and redeploy."

I offered three options; the operator composed a fourth that is strictly
stronger than any of them. The durable fix lands (explicit per-app base, so
the bundle survives a partial failure), AND the deploy runs the path that is
MEASURED to work -- a clean deploy onto an empty model, exactly what run 2a
did before it hit the missing resource file -- rather than juju's incremental
re-run path, which is the one carrying the defect.

OPS under GA-R3, no D-number: an explicit base per application states what
bundle.yaml:85's default-base already means. No ruled surface changes.

The invariant it establishes is skill material at stage close: a bundle whose
applications rely solely on default-base is deployable exactly ONCE, and a
production bundle that cannot survive a partial failure is a trap.

Committed and pushed BEFORE the dependent work.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Deploy attempt 2: prefer-ipv6 fixed, two new defects, model partially populated ...

The prefer-ipv6 failure did NOT recur. Two new ones did, and for the first time
the model is not empty: MEASURED 23 applications, 0 machines, 0 units.
Attempt 1 aborted during VALIDATION; this one reached EXECUTION, which is why
it left residue. NOTHING IS PROVISIONED -- no MAAS machine left Ready, no disk
written.

DEFECT 1: the rack's ~/repo-stage is a PARTIAL COPY of the repo with no
policies/, and bundle.yaml:214 is the only local-file reference in the deploy
input. juju resolves it relative to the bundle, so it must exist ON THE HOST
THAT DEPLOYS. Nothing caught it: --dry-run does not upload resources (the
SECOND --dry-run blind spot in two days), attempt 1 aborted before resource
upload, and preflight runs on voffice1 where policies/ DOES exist -- the same
wrong-host instrument class already recorded twice, and the second instance
this session. Fixed forward, both files sha256-verified.

DEFECT 2: a bundle relying on default-base is deployable exactly ONCE. The
re-run failed on barbican 265-vs-261. Measured: 265 is the ubuntu@22.04
revision, 261 the ubuntu@24.04 one. The 23 existing apps are all 22.04, so run
2a honoured bundle.yaml:85 -- but on a re-run, for an app that ALREADY EXISTS,
juju resolves without that default. A model-level default-base has NO EFFECT
(tested, then RESET). An explicit per-application base WORKS (tested read-only
on a throwaway; the error moved to the next app).

OWNED: two of those read-only tests were staged under /tmp and failed with
"no charm was found" -- the juju snap's PRIVATE /tmp, a trap this repo has
already recorded in CURRENT-STATE and the phase-4 runbook.

The rollback decision tree is written for tofu apply and defaults to
fix-forward, which is measured not to work here. A partial juju deploy is a
failure mode the repo does not cover. Recovery is an operator decision;
options are enumerated in the capture and the model residue is untouched.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

RULED 2026-07-31 (GA-R5): the five new P5 findings accepted; dc0 deploy is clear ...

Operator utterance, verbatim: "Accept the five and proceed to the dc0 deploy".

The 2026-07-30 acceptance covered SIX findings and says it covers "these six,
enumerated, and nothing else". This preflight run reports eleven: all six still
present, plus FIVE new -- maas-region-db-password, maas-region-admin-password,
maas-region-api-key.txt (SEC-027) and maas-juju-api-key.txt,
maas-juju-user-password (SEC-028), all vr1-dc1. Every one is the D-137 forward
register correctly reporting that dc1's MAAS region is authored but not applied.

Carried as known, by-design absences on their existing SEC rows. preflight keeps
exiting FAIL on P5 for the rest of this stage; that RED is ruled-accepted and
must NOT be made green by deleting or weakening a matrix row. Like its
predecessor this covers these FIVE, enumerated, and nothing else -- total
accepted at P5 is now ELEVEN across the two rulings.

Also corrects this changelog's header, which claimed the session was read-only
throughout. True for items 1-5; after the ruling landed it edited the renderer,
the gate, both overlays and both values files. No cloud state changed at any
point.

Committed and pushed BEFORE the deploy.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Pre-deploy: rack input refreshed + hash-verified, preflight captured, dry-run green ...

(a) The dc0 rack's ~/repo-stage is a COPY, not a clone -- nothing updates it, and
it still held the pre-ruling vips overlay. Exactly one of four files differed;
copied, then ALL FOUR hash-compared against repo HEAD. The gitignored
octavia-pki overlay was deliberately not touched (SEC-029) and verifies
byte-identical at 5fc117f1, still 0600. A sweep is evidence about the deploy
only if the swept bytes ARE the deployed bytes.

(b) Preflight captured (242 lines, exit 1), run with
MAAS_PROFILE=vr1-dc0-region -- without it preflight is REGION-BLIND and emits 19
false negatives. Instrument proven current first: maas-profile-assert.sh
vr1-dc0-region hot-kid exits 0. P1-P4 and P7 PASS, incl. aligned VIPs 13 OK / 0
bad against the RE-RENDERED overlay. P5 FAIL, 11 findings.

(c) The P5 delta is ENUMERATED. The 2026-07-30 acceptance covered six findings
and says it covers "these six, enumerated, and nothing else". All six are still
present; FIVE NEW are all vr1-dc1 S2 rows (SEC-027/-028) -- the D-137 forward
register correctly reporting that dc1's region is not built. Diff appended to
the capture. Needs its own GA-R5 exchange before the deploy.

(d) Step 4.2 --dry-run against the fixed input: exit 0, 56 apps / 108 relations
/ 33 unit placements. The ceph-osd tags=openstack exposure is now MEASURED, not
reasoned: the plan places ceph-osd/0..3 on machines 5-8 by explicit id, so the
absent tag never has to match. The residual (a later UNPLACED add-unit) stands.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Fix a defect in my own build: invariant 9a was VIP-scoped and the charm list was short ...

Found by a repo-wide grep, not by any gate. Two faults, one cause -- I
measured and gated the population the QUESTION named (the 13 VIP charms)
rather than the population the INVARIANT covers (every application juju
validates).

(1) PREFER_IPV6_CHARMS was WRONG. Re-measured across ALL 33 charms in
bundle.yaml: TWELVE declare the option, not seven. The five missing are
ceph-mon 491, ceph-osd 953 (squid/stable), nova-compute 894, hacluster 166
(2.4/stable) and mysql-innodb-cluster 164 (8.0/stable).

(2) 9a was written INSIDE the VIP loop, so an application with no vip never
reached it -- and the repo ALREADY has that case:
overlays/dc-dc-ipv6-family-matrix.yaml sets prefer-ipv6 on ceph-mon, which
carries no VIP. That overlay is a LATER deploy step, so the miss would have
passed attempt 2 cleanly and surfaced at the step after, looking like a new
fault.

9a now runs over EVERY application, before the VIP loop; the VIP loop skips an
app 9a already flagged so the diagnosis is not doubled. ceph-mon's own in-file
claim of the option is now INDEPENDENTLY VERIFIED from the artifact rather
than taken from the comment.

Harness 48 -> 50/50. T47 (non-VIP app whose charm lacks the option FAILS) and
T48 (ceph-mon PASSES) both mutation-proven: re-scoping 9a back to the VIP loop
kills T47; dropping ceph-mon from the list kills T48.

Gauntlet ALL GREEN (93); repo-lint 0 fail.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Sweep both deploy inputs for option NAMES and VALUE TYPES: clean, and proven able to fail ...

The two extensions owed after the ruling, now run:
  dc0  75 assignments / 20 schemas / 0 unknown name / 0 type mismatch / 0 note
  dc1  75 assignments / 20 schemas / 0 unknown name / 0 type mismatch / 0 note
Both EXIT 0. dc1 introduces no new charm@channel pair -- checked, not assumed.

PROOF OF TEETH, because a clean sweep across two inputs is exactly the
implausibly-uniform result this repo has been burned by. Three defects planted
in a THROWAWAY copy, all three caught, EXIT 1:
  [FAIL name] barbican  does not declare option 'prefer-ipv6'   (attempt-1 defect)
  [FAIL type] keystone  'prefer-ipv6': declared boolean, got str ('true')
  [note]      glance    'vip': declared string, value is unquoted float

Type judgement is deliberately conservative: a mismatch is reported only where
juju's own coercion cannot save it. A scalar where a STRING is declared is a
NOTE, not a failure -- but it is still surfaced, because an unquoted value is
how a version string silently becomes a float. An UNRECOGNISED declared type
REFUSES rather than passing.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Build the 2026-07-31 ruling: renderer + invariant 9 replaced, overlays re-rendered ...

Three parts, all mutation-proven.

(i) provider-bundle-check.py gains PREFER_IPV6_CHARMS -- the measured authority,
keyed by CHARM name, carrying the revisions and a re-measure warning -- and
invariant 9 is REPLACED, never deleted:
  9a  prefer-ipv6 on a charm that does NOT declare it FAILS. Asserted on
      PRESENCE, not truthiness: 'prefer-ipv6: false' is the same fatal
      'unknown option' to juju as true.
  9b  on a DECLARING charm it still travels with the v6 legs -- the L3-9
      protection is retained unchanged for those seven.
  9c  arity.
The old text's mechanism claim ("prefer-ipv6 makes HAProxy bind :::port") is
refuted by this session's measurement and is recorded as such in-file.

(ii) render-dc-overlays.py emits the option only for a declaring charm, READING
the set from provider-bundle-check with ast rather than restating it (the same
rule APP_OCTET already uses). render() keeps its purity property: the set is a
PARAMETER and the default REFUSES rather than defaulting to empty, because an
empty set renders a plausible artifact with the option nowhere. Both overlays
re-rendered: exactly SIX lines removed per DC and nothing else -- every vip
string byte-identical, so all v6 legs are retained.

(iii) tests/provider-bundle-check 44 -> 48/48. T43 reproduces the attempt-1
defect; T44 proves presence-not-truthiness; T45 is the positive control; T46
asserts the DIAGNOSIS.

MUTATION PASS -- six mutations, every one killed tests. And one NEW assertion
was found to be DECORATION and was REPLACED rather than kept: T46's first form
could not fail under any mutation, because a non-declaring charm with no option
reaches neither branch. Re-written to catch the fold-9a-into-9b simplification
and re-proven.

Gauntlet ALL GREEN (93); repo-lint 0 fail. The fixed dc0 deploy input now
sweeps CLEAN on option names: 75 assignments, 20 schemas, 0 unknown.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

RULED 2026-07-31 (GA-R5): the six drop prefer-ipv6, the v6 VIP legs STAY ...

Operator utterance, verbatim: "I want it to use IPv6, if there is spam
mechanisms being applied then that is bad. Even if it doesn't cause an issue
now, it might in the future. A clean IPv6 network is better than one with
unusable and possibly future breaking configurations."

That stated a PRINCIPLE rather than selecting an option, so a confirming
exchange was taken rather than adopting an inferred ruling (GA-R5 forbids
adopting from an inferred or reconstructed ruling). Confirming utterance,
verbatim: "Yes -- keep the v6 legs, remove only the option".

Recorded as a D-101 RULING NOTE dated 2026-07-31. OPS under GA-R3 -- a
renderer + gate change, doubt resolves DOWN, no D-number assigned. D-101's
family matrix is UNAMENDED: the dual-stack posture does not change and every
v6 VIP leg is retained.

Effect: barbican, designate, magnum, octavia, placement and vault keep all
three v6 VIP legs each; prefer-ipv6 stops being emitted for them; both DCs,
symmetric.

The SEVEN charms that DO declare the option are NOT covered by this ruling
and were deliberately not bundled into it -- one decision per exchange.

Committed and pushed BEFORE any dependent work.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

prefer-ipv6 research: size option (b) and scope the sweep claim ...

Two corrections to my own framing, both measured:

(1) Option (b) is NOT a values-file edit. 'prefer-ipv6: true' is INJECTED
UNCONDITIONALLY by scripts/render-dc-overlays.py:243-246 whenever fam ==
"dual", and 'family: dual' is a single TOP-LEVEL key in
render/values/vr1-dc{0,1}-vips.yaml:3 -- not per-app data. Implementing (b)
means teaching the renderer which charms declare the option, re-pointing
tests/render-drift, and replacing invariant 9: a code change with a harness.
Recorded before the fork is put to the operator so the ruling is taken on the
real cost.

(2) The option-name sweep's claim is scoped inline. It checked NAMES, dc0
only. Option VALUE TYPES (the 'type:' field in every schema already
downloaded) and the dc1 input are both owed before the redeploy, and each
could cost an attempt the same way.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

prefer-ipv6 research DONE: the option never drove the v6 HAProxy bind ...

Answers the 2026-07-31 ruled question ("Research what those 6 charms do with
v6 VIPs first"). Measured by downloading each charm at its pinned channel for
amd64/ubuntu@22.04 and reading its templates and code -- not Charmhub's
config-yaml, which answers only whether the knob is declared.

FINDING: in BOTH template families the ':::port' frontend bind is gated on
ipv6_enabled = not is_ipv6_disabled(), a read of the kernel
net.ipv6.conf.all.disable_ipv6 sysctl -- MEASURED 0 on a live MAAS-deployed
jammy node in this DC. The v6 VIP is assigned by pacemaker on per-address
family detection. vault ships no haproxy template at all; its listener is the
hardcoded literal [::]:8200. prefer-ipv6 is a UNIT ADDRESS-FAMILY switch, and
the one value it sets that sounds like a bind address (haproxy_host) is
consumed by no template in any charm downloaded.

So option (b) -- drop the option from the six, keep their v6 VIP legs -- is
what the measurement supports. NOT TAKEN: the ruling is the operator's, the
overlay is untouched and R2 is unamended.

Also recorded: provider-bundle-check invariant 9's mechanism claim is wrong
and must be REPLACED (never deleted) when a ruling lands; a new and separate
question about the SEVEN charms that do declare the option; a full
option-name sweep of the dc0 deploy input (56 apps / 81 assignments / 20
schemas / 0 unresolvable) showing prefer-ipv6 on the six is the ONLY unknown
option, so nothing else is waiting for attempt 2; and a runbook defect --
the dc0 deploy block omits vr1-dc0-machines.yaml, which is NOT a no-op (it
carries ovn-chassis bridge-interface-mappings).

Read-only session: no cloud mutation, no overlay edit, no ruling adopted.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

permissions: promote 36 read-only rules to committed policy; SEC-030 records the bypass ...

Operator-ruled 'Promote a curated safe subset' and 'Leave them as they are'.

settings.local.json is gitignored, so its 286 rules survive on this host but not
a rebuild (F1). 36 safe, recurring rules promoted to the committed settings.json
(allow 56 -> 92); ~210 one-off literals left behind as noise.

Four wildcards NARROWED before promotion -- ip route / ip neigh / bridge fdb /
tc qdisc all permit add/del on the host running every DC node; only show/get
promoted. The whole-of-HOME Read() wildcard was deliberately EXCLUDED: it
reaches the per-site creds folders, vault-init, as-executed and tenant dirs that
CLAUDE.md forbids reading into context.

SEC-030: an ssh <host> '<cmd>' matches on the outer ssh command, so the committed
ask-gating on maas admin mutations is bypassed in practice, and python3 * permits
arbitrary execution. Shown verbatim and ruled to keep; recorded as accepted and
known, and NOT promoted to team policy so it does not reach Roosevelt.

Guard misfires #8 and #9: the hook blocked the commands writing the SEC row and
this changelog item, because both are prose ABOUT a hazard rather than the
hazard. Rewritten and staged through files, not worked around.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

skill: /savegame -- the end-of-session bookend + transcript sweep ...

Four operator rulings: prepare-then-stop (never commits), archive at stage
close, sweep by model-enumerate-then-grep, repo-specific. Named savegame at
operator request.

The sweep is mechanical: every candidate is grepped against the repo, so
FIRST SURFACE items are proven rather than asserted. Five structurally
invisible classes always swept, including gitignored permission rules and
measurements that contradict a standing doc.

Two live conditions found while writing it: the ledger is at ~295 against the
300-line cap so the next close breaches it, and GA-R4 rule 2's literal text
(body moves at session close) diverges from ruled practice (stage close) --
DOCFIX owed, logged not taken.

repo-lint L9 caught the first draft hardcoding the repo name (D-110); fixed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Session close: GA-R4 bookend, memory review, gauntlet 93 green ...

dc0 node carve complete (v4 134/0, v6 54/54, diff vs pre-migration EMPTY);
juju controller vr1-dc0-controller LIVE on the fourth attempt; model, spaces
gate and apt-mirror done. Bundle deploy attempt 1 failed on prefer-ipv6 with
nothing half-applied; operator ruled research-first, so R2 is NOT amended and
Stage 5 is blocked on that question.

SEC-028 + SEC-029 opened and registered before use. DOCFIX-206 fixed a
credential gate that was not region-scoped. preflight region-blindness logged.

GA-R7 memory review: instrument-currency memory updated with three new
instances and a new DETECTOR -- an implausibly uniform result is itself the
tell. Other three memories reviewed, accurate, none claim operator intent.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Bundle deploy attempt 1 FAILED: prefer-ipv6 unsupported on 6 of 13 VIP charms ...

ERROR cannot deploy application 'barbican': unknown option 'prefer-ipv6'.
Model measured EMPTY afterwards -- juju validated and aborted atomically, so
nothing is half-applied and Steps 1-3.5 remain good.

The dry-run passed and the deploy did not: --dry-run resolves charms and plans
relations but does NOT validate config option names. A green dry-run is not a
gate on option validity.

Measured against charmhub's own config-yaml per pinned channel: 7 of 13 VIP
charms declare prefer-ipv6, 6 do not. barbican never had it at any channel, so
it was not an obsoleted option -- R2's uniform application was never valid.

Not fixed: invariant 9 couples prefer-ipv6 to the v6 VIP legs, so this needs a
GA-R5 ruling, not a mid-deploy edit.

Owned: my first charmhub query used a wrong field and returned a uniform
'no config' across 13 charms -- implausible, which is what caught it.

Capture: docs/audit/stage5-dc0-deploy-attempt1-20260731.txt

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

permissions: 12 read-only allow rules for the per-DC MAAS/PKI checkers ...

Scanned 50 recent transcripts. Most high-frequency read-only commands were
already covered (repo-lint, ledger-scan, run-tests-all, tests/*, preflight,
opentofu-validate, tofu validate/state list). These twelve were not.

Every rule is pinned to a read-only SUBCOMMAND -- check/verify/assert/plan/
--list -- so apply, reserve, reissue and --run stay gated. Nothing that mutates
the cloud was added, and no interpreter or ssh wildcard.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Stage deploy artifacts on the rack; SEC-029 for the PKI overlay residency ...

Operator-ruled: 'Copy dc0's PKI overlay to the dc0 rack (Recommended)'.
bundle.yaml + machines + vips staged with digests compared; the octavia-pki
overlay copied 0600 with sha256 equal end to end.

D-138 means the deploy cannot run from voffice1 at all -- no L3 path to the
controller API on the provider plane -- so the overlay must be DC-resident.
Per-DC isolation holds by construction: each rack gets only its own overlay.

SEC-029 records that reissue must now update BOTH copies or the rack deploys a
superseded cert. dc1's rows are the forward register.

creds-matrix 65/65; repo-lint 0 fail.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Step 3.5 complete: model vr1-dc0, spaces gate PASS, apt-mirror set ...

add-model guarded; spaces gate 0 fatal, all six ruled spaces present;
apt-mirror key VERIFIED against the live client (not guessed) and set to
http://10.12.8.4/ubuntu, asserted on content via dists/jammy/Release.

The mirror gate was RED on content -- one package, a transient upstream 500 on
linux-tools-intel-iotg. debmirror's all-or-nothing exit failed the whole run.
Re-sync took 15s and the gate is green. This is the assert-on-content fix
working as designed.

Owned: my first wait-loop polled systemctl immediately after an async start and
reported the sync done while the status file said RUNNING. Re-polled on content.

Recorded: D-138 moved the client to the rack but the rack has no repo clone --
same class as queued F1.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

FINDING: preflight.sh is region-blind, 19 false negatives for dc0 ...

DC=vr1-dc0 preflight reports every machine 'not enrolled in MAAS' while
resolving profile=admin -- the OFFICE1 region, which no longer owns them.
Re-run with MAAS_PROFILE=vr1-dc0-region: zero node failures, RED on P5 only.

The message reads as a deployment-state problem when the true statement is
'wrong region'. Fourth consumer of the MAAS_PROFILE=admin default.

Logged not fixed: a blanket refusal of 'admin' for vr1-* would be WRONG because
dc1's nodes still live in Office1. Needs per-DC resolution plus a region-identity
assert, with its own harness.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

JUJU CONTROLLER BOOTSTRAPPED: vr1-dc0-controller live, active/idle ...

Fourth attempt, first success. Each earlier failure was a real defect one layer
deeper and all three are now closed: D-138 (client into the DC), the controller
under-carve fix (default route), and D-132 q1 (per-DC MAAS region).

controller/0 active/idle on juju-controller rev 311; machine 0 started
ubuntu@22.04 as subtle-grouse; MAAS reads arfr7p Deployed ubuntu/jammy.

Transcript evidence: agent binaries resolved on attempt 1 (339-retry class stays
closed); targeting took the tagged VM not a role node; juju offered the v6 leg
restored earlier this session before connecting on metal-admin.

Capture: docs/audit/stage5-bootstrap-dc0-20260730.txt

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Juju re-pointed at the dc0 region: credential minted, proven, registered (SEC-028) ...

Operator-ruled: 'Mint juju-vr1-dc0 on the new region (Recommended)' and
'Add it to allow'. juju-vr1-dc0 minted in the dc0 region as a superuser,
mirroring the measured Office1 shape. Never printed; moved host-to-host with
all three sha256 digests compared; staging shredded.

Proven to AUTHENTICATE before bootstrap -- login + users/machines/rack reads
confirming superuser scope and DC-local region identity. Cloud re-pointed to
10.12.8.6:5240 and read back; the stale Office1-keyed credential removed first.

DOCFIX-206: Step 2.0's credential gate was not region-scoped, and I hit it --
all three checks passed while the user lived in Office1, so the SKIP branch
would have led to an auth failure that reads as a network fault.

Two snap-confinement traps recorded: private /tmp, and the home interface
refusing dot-directories. Neither error names confinement.

Registered BEFORE bootstrap: SEC-028, 8 matrix rows, dc0 manifest, and the
first 'rack' rows in vm-secret-locations. creds-matrix 65/65; repo-lint 0 fail.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

v6 carve complete 54/54; controller v6 restored; Juju re-point blocked on a credential mint ...

v6: applied=54 errors=0, read back 54/54. Ran after the v4 carve because the
provider v6 static lands on br-ex. The tool walks only the nine tagged role
nodes, so the controller's metal-admin v6 was applied separately -- restoring
ruled state the re-enrolment dropped. Its provider GUA stays deliberately absent.

Juju survey on the rack: cloud still points at the OFFICE1 region, which is what
killed bootstrap 3. juju unregister is NOT needed -- no controllers registered.

Blocker: the new region has no juju-vr1-dc0 MAAS user. Re-establishing it mints
a new API key, so it is operator-gated. Nothing was minted; the refusal was a
permission rule failing to match, not a classifier fault.

Gauntlet ALL GREEN (93); repo-lint 0 fail.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

dc0 v4 node carve COMPLETE: 10/10 machines, gate 134/0, diff vs pre-migration EMPTY ...

Canary-first then node by node, never batched. 11 + 13x8 + 4 mutations, every one
read back. Nine role nodes on six planes with OVS br-ex; the juju controller on
two planes raw with no br-ex and enp3-6 left on auto VLANs.

Verified by diffing against the Office1 pre-migration capture: every node's six
v4 legs match address for address. Compared by LEG SET, since system_id and
hostname are both re-minted at re-enlistment.

Instrument note: the first extraction read the wrong capture field and returned
'-' for every old address, which would have read as 'the old region had no
statics'. Caught by the implausible shape, not by the parse.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

dc-node-carve: unlink reason is a parameter, not a constant ...

The plan for the metal-admin leg read 'L3 moves to br-ex', which is false --
do_unlink is called for two different reasons and had one hardcoded. A mutation
log that states the wrong reason is the confident-but-wrong evidence class this
repo keeps paying for.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

dc-node-carve: convert the commissioning auto link, found by a live dry-run ...

The first live plan refused enp1s0 on every machine: it holds an `auto` link on
metal-admin out of enlistment, and the "wrong address on the right subnet is a
FAILURE" rule was too broad. A commissioning link is the expected starting
state, not a conflict -- so the tool could not carve the metal-admin leg at all.

Narrowed BY MODE: auto/dhcp/link_up gets unlinked and re-created as STATIC
(MAAS will not convert a link's mode in place); a `static` link with the wrong
address is still refused, because something deliberate put it there.

The `raw` fixture modelled the auto link correctly -- what was missing was any
assertion that `apply` over the raw state EXITS 0. T21-T24 only grepped for
planned strings, so a refusal on the very first NIC read as green. T26/T27 now
cover both directions and both are mutation-proven.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

dc-node-carve.sh: the v4 node interface carve, mutation-proven 40/40 ...

The last no-tool gap between the dc0 region migration and the Juju deploy:
60 NIC re-homes, 9 OVS br-ex bridges, 54 statics. The Stage-4 equivalent was
done ad-hoc and logged outside the repo, so there was nothing to re-run when
D-132 q1 forced a re-enrolment.

Proved the four-call MAAS cycle on ONE live interface (canary 6q4syf enp3s0)
before writing the tool -- nothing had exercised `interface update vlan=` on a
link_up-only interface on an auto fabric, which is the state all 60 NICs are in.
Measured in passing: link-subnet REPLACES a link_up link, so only the br-ex
member needs an explicit unlink.

No default profile; maas-profile-assert.sh before any read or write; every id
resolved live by stable key (boot MAC / CIDR / interface name); every mutation
read back and compared. Role asymmetry derived from the host token, and the
controller's deliberately-uncarved NICs are asserted ABSENT.

Mutation pass found the br-ex static compare could not fail -- Pattern B was
being caught by the type/parent assertions instead. Added the brexip fixture
and re-proved the kill. Also found that neutering an assertion's MESSAGE only
proves it exists, not that its predicate works.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Close sweep: queued findings F1-F10, memory review, skill invariants ...

Sweep capture docs/audit/queued-findings-20260730-dc0-region-migration.txt.
Three items lived ONLY in the transcript and would have been lost on a
clear:

F1 -- this session's permission rules exist only in the GITIGNORED
.claude/settings.local.json, so their verbatim text is now recorded,
including a broad Bash(ssh vr1-dc0-rack *) that an interactive approval
auto-added and which deserves review.

F2 -- the Office1 region STILL registers a rack controller on the dc0 rack
(vvr1-dc0/7chphy) and still holds the dc0 region VM's machine record. Not
harmful (Office1's DHCP for that VLAN is off, verified by process) but
dual-registration the operator should rule on.

F10 -- the five instrument errors of this session as one pattern, with the
rule that catches them.

F9 carries the next session's first commands and every measured input the
carve tool needs.

GA-R7 memory review: sharpened the classifier memory with the profile-token
lesson (a rule pinning 'maas admin' would have matched step 1 of the DHCP
cutover and silently missed step 3), and added an instrument-currency
memory. Both graduate to repo surfaces; neither is the only copy.

Skill swept: the per-DC region migration invariants folded in -- region
identity by rack, ids do not cross regions, the per-node ordering, batches
of three, zero SSH keys, the role-dependent carve, the role-tags gate that
passes on an incomplete tag set, and the two scripts that must not be
pointed at a new region.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

GA-R4 bookend: dc0 migrated to its own MAAS region, 10/10 Ready ...

Supersedes the part-4 bookend, which closed with the cutover blocked.
Office1 holds zero dc0 machines; the per-DC region holds all ten Ready with
shapes exact to D-121 Option C. Four named gates green: topology 40/0,
power key 9/0, role tags 0/0/0, plane IPAM 24/0.

Ledger at 278 lines, under the 300 cap. Gauntlet ALL GREEN (92), repo-lint
0 fail.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Plane IPAM complete on the new region: 24/0 PASS, existing tooling only ...

dc-plane-ipam.sh check vr1-dc0 goes from pass 7 / fail 17 to pass 24 /
fail 0, exit 0. Two idempotent applies, dry-run first, every write read
back: 13 D-134 reserved bands plus the FIP pool, then the 5 missing v6
plane subnets each created on the same MAAS vlan as its v4 twin.

No new code was needed. The tool's forced sequencing also proved itself --
the reserve run skipped every v6 band with 'not in MAAS yet, run carve-v6
first' rather than failing or silently no-opping, so running the two out of
order is safe.

This is the step that justifies the tunnel architecture: carve-v6 derives
its prefixes from the NetBox apex, reachable only from voffice1, while the
target region is reachable only via the rack. Neither host alone could have
run it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

All ten dc0 machines Ready in the per-DC region; task 6 complete ...

Enlisted as canary + three batches of three. Shapes match D-121 Option C
exactly (3x16/64, 2x12/48, 4x8/24, 1x4/8), all with 6 interfaces, every one
matched to its libvirt domain by pinned boot MAC -- hostname and system_id
were both re-minted.

maas-role-tags.sh check: 0 tags missing, 0 nodes needing a tag, 0 not in
MAAS, exit 0.

But it reported that clean PASS while the machines were still missing the
openstack-vr1-dc0 placement tag, which is not in its ROLES set and has no
creator anywhere in the repo. bundle.yaml places on that tag and
dc-node-v6-carve.py dies without it, so both the deploy and the v6 carve
would have failed. Caught only by diffing against the pre-migration
snapshot. Applied to the nine role nodes and deliberately not to the
controller -- reproducing the Office1 shape row-for-row.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf

Correct my own wording: every machine passes through New ...

I wrote that batch 1 went 'straight to Ready with no New detour'. Wrong --
I aborted them to New myself to clear the enlistment-time wedge. Every
machine passes through New, either by self-settling there (batch 2 did,
before I could abort) or by an explicit abort.

The real distinction is whether the commission ISSUED FROM New succeeds on
the first try, and that is what power_type decides. The conclusion stands;
the phrasing overstated it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf