Files
home-network-k3s-impl/decisions
jakman85andClaude Opus 5 e35612dc7e
gate / gate (pull_request) Failing after 1m51s
gate / conformance (pull_request) Has been skipped
fix(vpn-ingress): keep the server key in source through SOPS, not as an out-of-band Secret
Operator correction: secrets are kept in source through sops. #55 shipped the
WireGuard server private key as a Secret to `kubectl create` by hand. Two real
costs, not just a convention break:

  * R-SEC-01 / spec docs/07 -- secrets live in source, SOPS-encrypted, and
    reach the cluster only through Flux.
  * It broke DR for the one credential that cannot be re-derived. A rebuild
    restores everything in git; it does not restore a hand-made Secret, and
    losing this key means re-enrolling EVERY device, because each client
    profile pins its public half. #55 papered over that with "keep a copy in
    your password manager".

(Note secret-provenance did NOT forbid the original shape -- it scopes to
app-namespace=true and vpn-ingress is deliberately a platform namespace. The
rule broken was the written requirement, not an enforced control.)

An agent still must not mint a long-lived private key (CLAUDE.md §6), so the
file is committed ALREADY ENCRYPTED with `privatekey: REPLACE-ME`. That makes
the wiring complete and green from the first commit -- resource line plus both
overlay decryption patches -- leaving the operator exactly one act: replace the
value. A commented-out resource to uncomment later is the "in git, no generator
entry, reviewed, merged, still broken" shape this repo keeps hitting.

The init guard is now a validation rather than an emptiness check: the value is
piped through `wg pubkey`, which accepts only a real curve25519 private key, and
the pod names which case it hit -- placeholder, empty, mangled, or (the silent
one) still `ENC[` ciphertext because an overlay is missing its decryption patch,
which otherwise applies cleanly with every Flux condition green.

Second, independent finding that also fixes #55's step 2: `wg` is on the HOST
only and `sops` is in the CONTAINER only, so `sops -d | wg pubkey` cannot run in
one shell -- the command #55 documented could not have worked. Every step is now
split by where it runs, and the written key is verified by comparing sha256
digests rather than printing anything. `qrencode` is on neither, so the QR step
says so and gives the install command.

Touches clusters/** and adds a **/*.sops.yaml, so approval-policy will block
pending the operator's /approve-override. Deliberately not posted by me.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
2026-10-05 23:55:29 -05:00
..

decisions/ — the handoff log, one file per entry

This directory is the decision log. ../DECISIONS-LOG.md is the frozen archive of everything written before 2026-09-29 and is never edited again (see "The archive is frozen" below).

Why this exists

DECISIONS-LOG.md was append-only in a single file, and every agent appended to its tail. Two branches that both append hit the same last hunk, so git cannot auto-merge them: the second one to be reviewed conflicts, and so does the third, and the fourth. Measured on 2026-09-29: four of the five open PRs were unmergeable, and DECISIONS-LOG.md was the only conflicting file in all four:

#22 fix/crafty-oauth2-proxy-signin      CONFLICT (content): DECISIONS-LOG.md
#20 feat/conformance-job-template       CONFLICT (content): DECISIONS-LOG.md
#19 feat/conformance-trigger-kubeconfig CONFLICT (content): DECISIONS-LOG.md
#18 feat/conformance-runner-image       CONFLICT (content): DECISIONS-LOG.md
#17 feat/ci-is-the-approver             clean  (it touched no log entry)

Nothing was wrong with any of those changes. The log's storage format serialised work that was otherwise parallel, and it got worse with every concurrent branch: N branches produce N-1 rebases, each of which invalidates any gate run that preceded it.

The fix is the obvious one for concurrent appenders: stop sharing a file. Each handoff is its own file. Two agents writing handoffs touch disjoint paths, so there is nothing for git to merge and nothing to conflict. This scales to any number of parallel branches with zero coordination — which is the point, since the agents are deliberately isolated from each other in separate worktrees (required by CLAUDE.md §0) and cannot coordinate.

There is deliberately no index file and no counter. An index would be a shared mutable file — exactly the thing that just failed — and a sequence number would have two agents racing for 0043. The directory listing is the index.

Writing an entry

One file per handoff, named:

decisions/YYYY-MM-DD-<slug>.md

<slug> is lowercase [a-z0-9-]. Use your branch name's last segment — it is already unique per unit of work, which is precisely the property the filename needs. A branch fix/crafty-oauth2-proxy-signin handed off on 2026-09-29 writes:

decisions/2026-09-29-crafty-oauth2-proxy-signin.md

The file is YAML frontmatter followed by three required sections:

---
date: 2026-09-29
branch: fix/crafty-oauth2-proxy-signin
title: The Keycloak gate works — Crafty's own login was the wall
---

## What changed

Prose. What you actually did, and why.

## What I verified

The measurements, with their numbers. Quote the field you read, not the prose you
believed. Name the gate result and its exit code.

## What I did NOT verify

Everything else. An honest "UNVERIFIED" is worth more than an optimistic "green" —
this repo has been burned by the difference more than once.

All three headings are required and enforced (ci/decisions-log.sh). They are CLAUDE.md §7's contract; making them a checked structure is what stops an entry degrading into "done ✅".

Reading the log

The whole log, oldest first:

ls decisions/[0-9]*.md | sort

The current PM handoff — the newest entry. Ties within a day are broken by what landed on main last, which is the honest answer, so ask git rather than the filename:

git log --diff-filter=A --format='%H' --name-only -- 'decisions/[0-9]*.md' \
  | grep '^decisions/' | head -1

For a quick skim of who said what:

grep -H '^title:' decisions/[0-9]*.md | sort

The archive is frozen

DECISIONS-LOG.md is read-only history. Its SHA-256 is pinned in decisions/ARCHIVE.sha256 and ci/decisions-log.sh fails the merge gate if the file changes. That is not ceremony: without it, the next agent to read runbooks/ or an old CLAUDE.md habit appends to the tail again and re-creates the conflict for everybody else, silently, one PR at a time.

If the archive genuinely must change (a leaked credential to redact, say), that is a deliberate, reviewed act: change it, run sha256sum DECISIONS-LOG.md > decisions/ARCHIVE.sha256, and say in your handoff entry why. Re-pinning is visible in the diff. Appending is not.