---
phase: 24-aws-route-53-dns-sync-track-changes-crud-operations-full-aud
plan: 01
subsystem: aws-route53
tags: [route53, aws-sdk, migration, factory, foundation]
dependency-graph:
  requires: []
  provides:
    - "@aws-sdk/client-route-53 dependency"
    - "route53_zones / route53_records / route53_record_history / route53_audit_log schema"
    - "lib/types/route53.ts contracts"
    - "lib/services/route53-factory.ts (getRoute53Client / isRoute53Configured / resetRoute53Client)"
  affects:
    - "plans 24-02 through 24-07 (all import these four artifacts)"
tech-stack:
  added:
    - "@aws-sdk/client-route-53 ^3.1104.0"
  patterns:
    - "factory + is<Name>Configured() singleton (mirrors veeam-factory.ts)"
    - "dedicated-schema-per-integration migration (mirrors pax8/itglue conventions)"
key-files:
  created:
    - migrations/102_route53_tables.sql
    - lib/types/route53.ts
    - lib/services/route53-factory.ts
    - lib/services/route53-factory.test.ts
    - .planning/phases/24-aws-route-53-dns-sync-track-changes-crud-operations-full-aud/deferred-items.md
  modified:
    - package.json
    - package-lock.json
    - CLAUDE.md
decisions:
  - "Fast-forwarded this worktree's branch onto master before starting (14 commits behind, zero unique commits — pure catch-up, not a merge) to pick up the phase 24 planning docs (24-01-PLAN.md etc.) that were committed to master after this worktree was created."
metrics:
  duration: "Tasks 1-3 complete, checkpoint resolved"
  completed: "2026-08-05"
---

# Phase 24 Plan 1: Route 53 Foundation Summary

Installed the official AWS Route 53 SDK client, created the dedicated four-table
Postgres schema (mirror tables + change-history ledger + audit ledger), defined
shared camelCase TypeScript types, and built the `route53-factory.ts` credential
factory following the exact `is<Name>Configured()` + singleton shape every other
Pulse integration uses — TDD RED/GREEN cycle, 7/7 tests passing.

## What Was Built

**Task 1 — AWS SDK + migration:**
- `npm install @aws-sdk/client-route-53` (official `aws/aws-sdk-js-v3` package, confirmed `[OK]` in 24-RESEARCH.md's package legitimacy audit)
- `migrations/102_route53_tables.sql` — four tables:
  - `route53_zones` (mirror, PK = AWS hosted zone id with `/hostedzone/` prefix stripped)
  - `route53_records` (mirror, PK = composite `record_key` string since Route 53 recordsets have no native id)
  - `route53_record_history` (D-06 append-only change ledger, `source` CHECK constrained to `pulse_crud`/`sync_detected_drift`)
  - `route53_audit_log` (D-03/D-07 append-only attempt log including failures, `status` CHECK constrained to `pending`/`committed`/`failed`, `zone_id` deliberately not an FK)
  - Seed row `INSERT INTO integration_settings (key, disabled) VALUES ('route53', false)` (D-10, display-only toggle — extends the existing seed list rather than editing the committed `081_integration_settings.sql`)
- Migration was applied to the live database by the orchestrator after this worktree's commits landed: `docker exec -i pulse-postgres psql -U pulse_user -d pulse_autotask < migrations/102_route53_tables.sql`. All four tables confirmed present via `\dt route53_*`.

**Task 2 — Types + factory (TDD):**
- RED: `lib/services/route53-factory.test.ts` written first, confirmed failing (module didn't exist)
- GREEN: `lib/types/route53.ts` (camelCase interfaces/unions per the plan's `<interfaces>` contract) + `lib/services/route53-factory.ts` (singleton factory, no explicit `credentials:` option passed to `Route53Client` — relies on the AWS SDK default credential chain reading `AWS_ACCESS_KEY_ID`/`AWS_SECRET_ACCESS_KEY` from `process.env`, per 24-RESEARCH.md Pitfall 1)
- `CLAUDE.md` integration table updated with the `AWS Route 53` / `AWS_*` exception row
- 7/7 test assertions pass; `npx tsc --noEmit --pretty` exits clean

## Deviations from Plan

### Auto-fixed Issues

None — plan executed exactly as written for Tasks 1-2.

### Environment Note (not a deviation, a pre-condition)

This worktree's branch (`worktree-agent-aa690b9b15c5b0f8e`) was created before the
phase 24 planning commits landed on `master` — it had zero unique commits and was
purely 14 commits behind. Fast-forwarded (`git merge --ff-only master`) to pick up
`24-01-PLAN.md` and related planning docs before execution could start. This was a
clean fast-forward (no merge, no conflicts, nothing discarded).

### Out-of-Scope Discovery (logged, not fixed)

`npm test` (full suite, run as part of Task 2 verification) surfaced 2 pre-existing
failures in `lib/services/analyzer/itglue-search.test.ts`, unrelated to this plan —
neither that file nor `itglue-search.ts` were touched by Tasks 1-2. Logged to this
phase's `deferred-items.md` per the scope boundary rule rather than fixed.

## Checkpoint Status: RESOLVED

Task 3's four verification items, confirmed by the orchestrator against the live
`pulse-app` / `pulse-postgres` containers with the developer:

1. **BWS secret key names** — initially a MISMATCH: the Bitwarden project exposed
   `AWS_ACCESS_KEY` / `AWS_SECRET_KEY`, not the literal `AWS_ACCESS_KEY_ID` /
   `AWS_SECRET_ACCESS_KEY` the AWS SDK's default credential chain requires. No
   `AWS_REGION` key exists (factory defaults to `us-east-1`, as designed). **Resolved
   by renaming the secrets directly in Bitwarden Secrets Manager** (developer's choice,
   over adding an env-var alias shim in `docker-entrypoint.sh`) — re-verified via
   `bws secret list` inside the container afterward, confirmed `AWS_ACCESS_KEY_ID` /
   `AWS_SECRET_ACCESS_KEY` now present. **No change needed to
   `lib/services/route53-factory.ts`** — it already reads the AWS SDK's hardcoded
   env var names via the default credential chain, per Pitfall 1.
2. **Credentials reach the container** — confirmed present in the actual Node process
   environment (`/proc/<node-pid>/environ`, presence-only check, count=2). Note:
   `docker exec pulse-app sh -lc 'echo $VAR'` as written in this task does NOT work
   for this verification — `docker exec` attaches a fresh process to the container
   namespace and does not inherit the runtime env of the `bws run`-wrapped PID 1
   process tree. Verified via the actual node process's `/proc/<pid>/environ` instead.
3. **Outbound DNS egress** — `EGRESS-OK`: `1.1.1.1`/`8.8.8.8` UDP/53 reachable from
   inside the container. Plan 24-04 can use Node's `dns` module directly; no
   DoH-over-HTTPS fallback needed.
4. **IAM scope** — developer to confirm from the AWS console side; not verifiable
   from inside the container/repo. Recorded here as an open operational item, not a
   blocker for 24-02 through 24-07 (D-05/D-06/D-07/D-10 schema/factory contracts do
   not depend on the IAM policy's exact scope).

### Incident: credential value briefly exposed during diagnosis (not part of this plan's code)

While diagnosing item 1's mismatch, the orchestrator ran `bws secret list -o json`
inside the container to enumerate key *names* — this command prints full secret
*values* by design (unlike the task's own `${VAR:+SET}`-style presence checks) and
briefly exposed the AWS access key ID/secret value in the session transcript. The
developer was notified immediately and advised to rotate the exposed key in AWS IAM.
This is an operational incident, not a code defect — recorded here for traceability
since it happened during this plan's checkpoint verification. No repository file
contains the exposed values.

### Additional finding fixed during checkpoint verification (outside this plan's `files_modified`, pre-existing uncommitted work)

Two bugs in already-staged, uncommitted BWS infrastructure files (`Dockerfile`,
`docker-compose.yml`, `docker-entrypoint.sh` — not part of this plan's scope, but
blocking checkpoint verification) were found and fixed by the orchestrator:
- `docker-compose.yml`: the `app` service's `environment:` block re-declared
  `BWS_ACCESS_TOKEN`/`BWS_PROJECT_ID` as `${VAR:-}` substitutions, which resolve
  against the root `.env` (not `.env.local`) and silently overrode the real token
  with an empty string. Fixed by removing the redundant re-declaration.
- `Dockerfile`: the generated `bws` CLI config only set `state_dir`, but bws 2.x
  requires `server_base` (or `server_identity`) even for the default Bitwarden cloud
  instance — this crash-looped the `pulse-app` container on every start. Fixed by
  adding `server_base = "https://vault.bitwarden.com"` to the generated config.

Both fixes were verified live (container rebuilt, restarted, confirmed healthy) but
remain uncommitted, matching the state of the rest of this BWS infra work — the
developer owns when to commit that separately from this phase's plans.

## Self-Check: PASSED

All created files confirmed present:
- FOUND: migrations/102_route53_tables.sql
- FOUND: lib/types/route53.ts
- FOUND: lib/services/route53-factory.ts
- FOUND: lib/services/route53-factory.test.ts
- FOUND: .planning/phases/24-aws-route-53-dns-sync-track-changes-crud-operations-full-aud/deferred-items.md

All commits confirmed present in `git log`:
- b9df27b feat(24-01): install AWS Route 53 SDK and create dedicated schema migration
- 4dd9d5d test(24-01): add failing test for Route 53 credential factory
- 210f84d feat(24-01): implement Route 53 credential factory
- fadae68 docs(24-01): log pre-existing itglue-search test failures as out-of-scope
