T-HUB/docs/admin-guide.md
glass beadian aa5e262f3a Tactical Media Broadcast Hub — initial release
Self-hosted multi-platform broadcast newsroom for activist collectives:
publishing pipeline with group approval and DST-proof scheduling, TweetDeck-style
column wall with hostile-content-safe rendering, live control room with Auto
Director, bridged chat governance with polls and quorum, distributed sandboxed
transcode workers, encrypted content-addressed archive, monthly analytics.

MIT licensed. See README.md and docs/.
2026-10-10 11:56:42 +00:00

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# Tactical Media Broadcast Hub — Administrator Guide
For operators running Tactical Media Broadcast Hub for one or more workspaces. Engineering detail lives in [engineering-guide.md](./engineering-guide.md); end-user help in [user-guide.md](./user-guide.md).
---
## 1. Quick start (development)
```bash
pnpm install
docker compose -f infra/docker-compose.yml up -d postgres redis temporal
# dev extras: --profile dev (adds media-worker stub, mock live source, mock RTMP sink)
pnpm --filter @tactical-media-broadcast-hub/api dev # API on :3000
pnpm --filter @tactical-media-broadcast-hub/web dev -- -p 3001 # UI on :3001
pnpm --filter @tactical-media-broadcast-hub/scheduler dev # Temporal worker
curl localhost:3000/healthz # {"status":"alive"}
curl localhost:3000/readyz # per-component: postgres/redis/temporal
```
Default dev ports: API **3000** · Web **3001** · media-worker **3100** · Postgres **5433** (host 5432 was already taken) · Redis 6379 · Temporal 7233 · MinIO 9000 (console 9001) · Prometheus 9090 · Grafana **3001→3000**.
> Docker image pulls can fail when the registry route is degraded (observed: minio/minio denied). Storage/S3 integration tests skip gracefully without an endpoint; everything else runs.
## 2. Environment variables
### API (`apps/api`)
| Variable | Required | Purpose |
|---|---|---|
| `DATABASE_URL` | prod | **App pool** — connect as `sp_app` (RLS-bound). Never the owner. |
| `SUPER_DATABASE_URL` | prod | **Owner pool** — migrations + provisioning only. |
| `SESSION_SECRET` | prod | HMAC key for session tokens. |
| `SUPERPOSTER_KEK` | prod | Vault master KEK, 32 bytes base64. Wraps per-workspace DEKs. |
| `S3_KEK` | prod | Media-encryption KEK, 32 bytes base64. Seals every S3 object. |
| `S3_ENDPOINT` / `S3_REGION` | prod | S3-compatible endpoint (MinIO, AWS, Spaces…). |
| `S3_ACCESS_KEY` / `S3_SECRET_KEY` | prod | Storage credentials. |
| `S3_BUCKET` | no | Default `tactical-media-broadcast-hub-media`. |
| `S3_FORCE_PATH_STYLE` | no | `true` (default) for MinIO; `false` for AWS virtual-host style. |
| `OIDC_ISSUER` / `OIDC_CLIENT_ID` / `OIDC_CLIENT_SECRET` / `OIDC_REDIRECT_URI` | prod | Any compliant OIDC IdP (Authentik, Keycloak). |
| `TEMPORAL_ADDRESS` / `TEMPORAL_NAMESPACE` | no | Default `localhost:7233` / `default`. |
| `POSTGRES_HOST/PORT`, `REDIS_HOST/PORT` | no | Readiness probes. Default localhost, pg port **5433**. |
| `OTEL_EXPORTER_OTLP_ENDPOINT` | no | Tracing to the collector; absent = disabled. |
| `LOG_LEVEL` | no | pino level, default `info`. |
In development, missing KEKs derive stable local fallbacks; **in production the API refuses to start without both KEKs and `SESSION_SECRET`** — encryption cannot be silently skipped.
## 3. Key management (critical)
Generate each key once, store in your secret manager, and back them up **separately from the database**:
```bash
openssl rand -base64 32 # → SUPERPOSTER_KEK (credential vault)
openssl rand -base64 32 # → S3_KEK (media encryption)
openssl rand -base64 32 # → SESSION_SECRET
```
- **Lose `SUPERPOSTER_KEK`** → all stored provider tokens are unrecoverable; users must reconnect accounts.
- **Lose `S3_KEK`** → the entire media archive is unrecoverable even though the S3 bytes remain.
- **Rotation:** `SUPERPOSTER_KEK` rotation re-wraps DEKs via the vault's `rotate()`. `S3_KEK` rotation re-wraps per-object CEKs without re-encrypting bodies (roadmap item; see engineering guide §3.8).
- Both KEKs are distinct from database credentials; changing DB passwords never affects them.
## 4. Database
### 4.1 Roles
- `tmbh` (docker `POSTGRES_USER`) — superuser, **owner pool only** (migrations via `SUPER_DATABASE_URL`).
- `sp_app` — created by migration `003_app_role.sql`; `NOSUPERUSER`, grants on all tables/sequences. **All runtime connections.** `FORCE ROW LEVEL SECURITY` means even the table owner cannot silently bypass tenancy.
### 4.2 Migrations
Ordered SQL files in `apps/api/migrations/` (001 tenants + RLS + audit chain · 002 RBAC seed · 003 sp_app role · 004 NULLIF policy fix · 005 epoch trigger fix · 006 publishing). Idempotent runner (`apps/api/src/db/migrate.ts`) tracks `schema_migrations`:
```bash
cd apps/api && SUPER_DATABASE_URL='postgresql://tmbh:…@localhost:5433/tmbh' \
pnpm exec tsx -e 'import {runMigrations} from "./src/db/migrate.js"; runMigrations("./migrations").then(m => console.log("applied:", m))'
```
Integration tests apply migrations automatically when `SUPER_DATABASE_URL` is set.
### 4.3 Backups
- Nightly `pg_dump` of the `tmbh` DB.
- S3 bucket lifecycle/replication per your provider (objects are already encrypted client-side; provider snapshots never see plaintext).
- **KEKs** (§3) — without them backups are unrecoverable.
## 5. Rate & capacity settings (per connection)
Post/rate caps are **settings, never hardcoded**. Three layers, highest wins:
1. **Per-connection override** (workspace settings) — e.g. a news account with elevated API tier declares `dailyPostCap: 100`.
2. **Deployment env** — `CONNECTOR_RATE_<PROVIDER>_RPS`, `CONNECTOR_RATE_<PROVIDER>_DAILY_POSTS`, `CONNECTOR_RATE_<PROVIDER>_COMMENTS_PER_HOUR`, `CONNECTOR_RATE_<PROVIDER>_TIER_NOTE` (provider upper-cased, dashes→underscores: `CONNECTOR_RATE_INSTAGRAM_DAILY_POSTS`).
3. **Documented provider defaults** (standard-access caps: Instagram 25 posts/24h, Threads 250/24h — Meta enforces these server-side).
Truth model: raising a value **does not bypass the provider** — it declares what your tier actually permits (news-publisher/advanced-access programs raise real limits) so the scheduler paces within true capacity. The UI warns (`exceedsDocumentedCap`) when an override exceeds the documented cap: the provider will reject the excess unless your tier genuinely allows it.
## 6. Workspaces, roles & permissions
37 permissions across 10 seeded roles (Owner, Admin, Publisher, Editor, Approver, Analyst, Moderator, VideoPublisher, StreamOperator, BroadcastOperator). Role changes bump the workspace `authz_epoch`; affected live sessions fail closed on their next request. Audit every membership change (hash-chained; `audit_verify_chain()` detects tampering).
## 7. Monitoring & health
- `GET /healthz` — liveness (no dependencies).
- `GET /readyz` — readiness: TCP probes for postgres/redis/temporal, `503` + component detail when degraded.
- Grafana `http://localhost:3001` (anonymous admin in dev) with Prometheus datasource pre-provisioned; scrape targets for API and media-worker are in `infra/prometheus/prometheus.yml`.
- Logs: structured JSON; credential-shaped keys are redacted at the logger. Never log raw tokens — the scrubbing is defense-in-depth, not permission.
## 8. Security operations checklist
- [ ] Both KEKs generated, stored in secret manager, backed up off-box.
- [ ] `DATABASE_URL` uses `sp_app`, never the owner role.
- [ ] OIDC issuer uses HTTPS; redirect URI exact.
- [ ] Postgres not exposed beyond the host (compose binds 5433 locally).
- [ ] Audit-chain verification scheduled (a cron calling `audit_verify_chain` per workspace and alerting on `false`).
- [ ] Connector credentials rotate on schedule (vault `rotate()`).
- [ ] S3 bucket: no public access; presigned URLs are the only sharing path.
## 9. Troubleshooting
| Symptom | Cause | Fix |
|---|---|---|
| API won't start, "S3_KEK is required" | production without KEKs | set both KEKs (§3) |
| `tenant context mismatch` errors | SECURITY DEFINER call without matching `withTenant` context | code bug — file an issue; do not grant sp_app more privileges |
| Sessions mass-invalidated after role change | `authz_epoch` bump (by design) | users re-login once |
| Scheduler idle, posts stuck `pending` | Temporal down when scheduled | worker sweeps pending rows on startup; verify `TEMPORAL_ADDRESS` |
| Postgres port conflict | host 5432 occupied | compose maps 5433; set `POSTGRES_PORT` accordingly |
| MinIO image pull denied | registry degradation | retry later or point `S3_ENDPOINT` at any S3 |
| Streams columns empty in UI | mock-registry data (API not wired yet) | expected pre-WP3-integration |
## 10. Upgrading
1. Back up DB + confirm KEK backups (§4.3).
2. `git pull && pnpm install`.
3. Run migrations (§4.2) — additive by design; expand/contract policy documented per migration.
4. Restart API, then scheduler.
5. Watch `/readyz` and the audit chain verification.