| 2026-07-14 |

D-119: region-qualify the VR1 DC namespace -- C3 / gap #19 CLOSED (Stage 3 unblocked)
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THE BUG: the token `dc0` meant TWO DIFFERENT CLOUDS depending on the file --
VR0's LIVE testcloud in scripts/lib-net.sh, VR1's FIRST DC in the NetBox
importer. One string, two clouds, one of them in production.
THE RULING (operator): the repo adopts the apex's names verbatim.
vr0-dc0 VR0's DC0 the LIVE testcloud (a DIFFERENT region)
vr1-dc0 VR1's FIRST DC GUA 2602:f3e2:f02::/48
vr1-dc1 VR1's SECOND DC GUA 2602:f3e2:f03::/48
Bare dc0/dc1/dc2 are now REJECTED LOUDLY everywhere.
D-119 COMPLETES D-117, it does not reverse it: it executes D-117's own amendment
across the three surfaces D-117 never touched. ZERO NetBox writes -- the apex was
already correct and self-consistent (MEASURED: f02::/48 -> vr1-dc0, f03::/48 ->
vr1-dc1); the REPO was the only surface out of step. Renaming the apex to match
the repo was considered and REJECTED (production IPAM write; VR1 would become the
only 1-indexed region; and vr1-dc1 would mean VR1's FIRST DC while vr0-dc1 means
VR0's SECOND).
THE PRIZE: the importer's DC->site map is now an IDENTITY -- there is no offset
table left to get wrong, and an assert enforces it. The original defect was
precisely a WRONG LOOKUP TABLE. The bug class is deleted, not defended.
TWO REAL BUGS the naming fix ALONE would NOT have closed (found by review sweep):
- BREAK-1: descriptions were built with f"VR1 {dc.upper()} ..." -- under D-119 that
renders "VR1 VR1-DC0 provider-public" on all 36 prefixes. Same class as the
original bug (deriving a label by munging a token), hidden in the description
field where slug-focused review missed it. Now looked up from SITES[name].
- BREAK-2 (the important one): DC_GUA_PREFIX was NEVER cross-checked against --dc.
`--dc vr1-dc0 DC_GUA_PREFIX=<f03>` was ACCEPTED: it writes the SECOND DC's GUA,
carved with the FIRST DC's ULA nibble, scoped to the FIRST DC's site -- a
silently mis-bound datacenter assembled from two disagreeing sources. Identity-
mapping the slug leaves the ADDRESSING free-floating. Now guarded by EXPECTED_GUA.
ALSO: vdc1/vdc2 -> vvr1-dc0/vvr1-dc1 (D-114 amendment). D-114's own DR primitive is
`virsh destroy vdc1`, which read as "destroy VR1 DC1" while MEANING "destroy VR1
DC0". A mislabelled destroy command in a DR drill is not cosmetic. Neither VM is
built, so it is free. voffice1/Office1 KEEP their number (operator ruling).
Env var: DC1_/DC2_V4_SUPERNET -> VR1_DC1_V4_SUPERNET (both old names rejected).
rbd-mirror's --site-name aligned: `--dc vr1-dc0 --site-name dc1` was a re-created
two-namespace collision on one command line.
TESTS: dc-selector 21->30, prefixes-import 40->82 (identity invariant; EXPECTED_GUA
in BOTH mismatch directions; mismatched run writes NOTHING; matching pair still
succeeds; no munged description). GAUNTLET ALL GREEN (57). repo-lint 0 fail.
The old harnesses PINNED THE WRONG MAPPING -- they would have gone green while
enforcing the bug.
THE tofu apply IS NOT DONE -- IT IS GATED. Plan: 11 to add, 0 to change, 11 to
destroy (libvirt object names are ForceNew; moved{} makes the plan reviewable but
cannot suppress a replace). MEASURED SAFE: all 11 are EMPTY -- no guests, no
volumes, Stage 3 hasn't run. Office1's live objects are not in the plan.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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| 2026-07-10 |

DC-DC Stage 1 (dc-dc-phase0): first real execution + scaffold/tooling fixes
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First end-to-end run of a DC-DC runbook against real infrastructure (vcloud host,
OpenTofu v1.12.3). Applied 13 libvirt objects (6 DC1 planes, dc1/office1/dc2
pools, office1-local, 3 mesh legs, all MTU 9000); prior VR0 nets torn down (wan
kept as a gap-#17 model); DC2 planes deferred (NetBox supernet), DC2 storage wired.
DOCFIX-178: scripts/prereqs/ idempotent workstation prereq installers + a
Prerequisites section in the runbook + tests/prereqs/ (25/25). Runbooks must
not assume prereq runtimes.
DOCFIX-179: OpenTofu scaffold first validation + apply. Per-module
required_providers (child modules do NOT inherit provider SOURCE -> OpenTofu
inferred nonexistent hashicorp/libvirt); tofu fmt -recursive; provider "maas"
deferred to Stage 3 (kept a sensitive key out of Stage-1 plan/state);
repo-lint now skips the .terraform/ provider cache; .terraform.lock.hcl added.
DOCFIX-180: dc-dc-phase0 runbook as-executed corrections folded in at phase
close (two MTU domains, non-pristine-host handling, Step-9 13-resource plan,
-input=false, Known-Gap resolved).
repo-lint 0 fail; prereqs harness 25/25; repo-lint harness 34/34.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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DOCFIX-175/176: OpenTofu state file security + VR1 teardown/rollback runbook
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Found while reviewing what's missing from the VR1 buildout ahead of
tomorrow's execution.
DOCFIX-175: terraform.tfstate stores sensitive=true variables (like
maas_api_key) in plaintext regardless of the flag, which only redacts
CLI/plan output (verified against HashiCorp's own docs). Added .gitignore
coverage, a "State file handling" section in opentofu/README.md, an inline
caveat on maas_api_key's description, and a "SECURE THE STATE FILE" callout
at Stage 1 Step 10 -- the actual first real tofu apply (an early draft
wrongly assumed Stage 3; corrected after reading the runbooks directly).
DOCFIX-176: new runbooks/dc-dc-teardown-rollback.md for the OpenTofu/
libvirt/MAAS-vm_host layer, which D-061's existing teardown scripts don't
cover (different layer, juju/MAAS-machine). Two paths (scoped -target
teardown or full VR1 destroy), a rollback decision tree favoring
fix-forward over destroy, and explicit mesh-link shared-infrastructure
handling.
Also folded in: a fix to docs/changelog-20260710-ledger-scan-self-inflicted-falsepositive-fix.md
after re-running ledger-scan.sh caught that its own narration (and the
session-ledger mirror) had reintroduced the exact false-positive class
DOCFIX-174 had just fixed.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QrcJx8TUar7pYAvpGJw57A
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DOCFIX-171: full-project sweep -- DC-DC runbook consistency fixes
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Stage 1's calculator scripts (DOCFIX-162) were never wired into its own
Step 3 (still showed manual arithmetic) -- fixed to actually invoke them.
Stage 5's Sequence-list still tagged the IPv6 overlay [NOT YET WRITTEN]
after the Step 6 body was already updated -- fixed to match. Stage 6's
delivery checklist claimed its steps call the new Ceph replication
scripts when the step bodies still only showed raw commands -- added real
"PREFER scripts/dc-dc-..." pointers to each affected step. Also closed out
two DOCFIX numbers (164, 167) whose ledger entries never got their real
number written into the closing line during the earlier integration pass.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QrcJx8TUar7pYAvpGJw57A
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DOCFIX-153: Stage 1 runbook -- Phase 0 vcloud host preparation
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Command-level runbook for turning the bare vcloud host into a VR1 substrate:
measure CPU/RAM/disk/nested-KVM/MTU, enable nested KVM, prepare storage pool
paths, install/confirm OpenTofu, write tfvars from measured values, init/
validate/plan/apply the DC1 planes + Office1 pool + mesh links, verify
against the Phase-0 gate. Flags a real open question (unconditional MAAS
provider block possibly demanding credentials before Stage 2 stands up
MAAS) rather than silently working around it. Not yet executed -- this is
the hand-off artifact for tomorrow morning's switch to the vcloud host.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QrcJx8TUar7pYAvpGJw57A
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