umbra audio 152735f145 Assert the tenant boundary where it now lives, not where it used to
Three changes, all of them consequences of the migration rather than new
questions.

test_rls_coverage.py drops project_authors and project_publishers from the
policy list - they are per-tenant now and there is nothing for a policy to
filter - and replaces that entry with checks that are stronger than what it
replaces. A policy on a shared table proved the table was filtered; a per-tenant
table cannot be filtered at all, so the properties worth asserting are that no
shared copy exists in public, that no policy lingers on a tenant table, that
every tenant schema carries all four tables, and that organization_id is gone
from all of them. That last one matters because it was the column every removed
policy filtered on: leaving it behind would leave an application filtering by a
value nobody maintains.

It also gains a check that POLICY_TABLES names tables that are actually in
public. Without it, moving a table out of the policy list and out of public in
the same change makes both existing checks pass by not looking at it - which is
how a table can quietly stop being policed and still look policed.

test_tenancy.py covers the search_path function directly, and the case that
matters is the negative one: a request with no organization gets public alone.
A wildcard, or leaving the connection's default in place, would put every
tenant's tables in reach of a request that has not decided which tenant it is
acting for.

test_postgres_repository.py proves the new startup contract check holds against
the real app function, and that it can fail. A check that cannot fail is the
same shape as a policy nobody wrote: it reports success while enforcing
nothing.

The emptiness guard now also looks inside the tenant schemas and the run drops
them at the end. Not tidiness: a database holding nothing in public can still
hold somebody's books, and a guard that only looked at public would pass on a
database it was about to empty.
2026-10-03 13:37:39 -07:00

UmbraTrans local bootstrap workspace

This workspace contains the unprivileged agent-comm server requested by the Oldbox handoff. It does not contain the UmbraTrans application source: no application bundle was present locally. A staged archive, if present, is left untouched.

Layout

  • agent_comm/ — Python 3.11+ standard-library, stdio-only MCP server.
  • agent_comm/tests/ — dependency-free unit tests.
  • umbratrans_web/ — phase-1 account/user-management backend slice (FastAPI, Argon2id, sessions, admin routes, in-memory and local JSON development repositories). It does not connect to PostgreSQL; see umbratrans_web/README.md.
  • umbratrans_web/migrations/ — proposed, unapplied phase-1 identity SQL and its rollback.
  • opencode.json — non-secret OpenCode registration for the confirmed NAS2 mailbox.
  • agent-comm.local.example.json — non-secret local fallback registration.
  • .env.example — non-secret environment template.
  • DATA-SEPARATION.md — development/production boundary.

Confirmed NAS2 mailbox

The oldbox desktop account mounted NAS2 netbackup through its user GVfs session and confirmed the UmbraTrans directory readable, searchable, and writable. The server requires the explicit NAS deployment mode, the enclosing GVfs mount, and an affirmative mount confirmation:

/run/user/1002/gvfs/smb-share:server=nas2.local,share=netbackup/UmbraTrans/agent-mailbox

Run read-only health checks:

cd /home/umbra/src/UmbraTrans
AGENT_COMM_MODE=nas \
AGENT_COMM_NAS_MOUNT=/run/user/1002/gvfs \
AGENT_COMM_NAS_CONFIRMED=1 \
AGENT_COMM_ROOT='/run/user/1002/gvfs/smb-share:server=nas2.local,share=netbackup/UmbraTrans/agent-mailbox' \
/home/umbra/.local/bin/uv run python -m agent_comm --check

If the user GVfs session is absent, do not guess another path or broaden share permissions. Use the private local fallback documented in agent-comm.local.example.json, or have a privileged operator restore the confirmed user mount.

The server speaks newline-delimited MCP JSON-RPC over stdin/stdout. It opens no network socket and never executes queued instructions.

OpenCode registration

opencode.json contains the exact NAS configuration and paths only. It must never contain passwords, tokens, private keys, or other secrets. A Mac-side reader still needs separate configuration and verification before an outbox message can be considered received.

Development workflow

The project uses uv and a workspace-local virtual environment:

cd /home/umbra/src/UmbraTrans
/home/umbra/.local/bin/uv sync --python /usr/bin/python3
/home/umbra/.local/bin/uv run python -m unittest discover -s agent_comm/tests -v
/home/umbra/.local/bin/uv run ruff check .
/home/umbra/.local/bin/uv run ruff format --check .
/home/umbra/.local/bin/uv run python -m compileall -q agent_comm
make check

The tests cover schema and size validation, atomic no-overwrite writes, restrictive modes, path traversal, symlink refusal, secret-pattern redaction, inbox processing, and read-only initialization.

The account-management slice has its own targets:

cd /home/umbra/src/UmbraTrans
/home/umbra/.local/bin/uv run pytest umbratrans_web/tests
make web-check

Its tests use the in-memory repository and generated per-run passwords; they never read a production configuration, never connect to a database, and contain no credential material.

Backups

scripts/umbratrans_backup.sh is installed root-owned as /usr/local/sbin/umbratrans-backup and scheduled by the enabled umbratrans-backup.timer. It writes only to the confirmed NAS2 netbackup/UmbraTrans/backups tree:

  • PostgreSQL: pg_dump custom-format logical dump, never a live data-directory copy.
  • Configuration: PostgreSQL configuration files only.
  • Workspace: source/configuration archive excluding .venv, Git internals, runtime data, local mailboxes, and secret-bearing files.

Each file is staged outside the share, published with an atomic rename as umbra, checksummed, and verified after publication. Retention is 30 days for PostgreSQL/configuration/manifests and 14 days for workspace archives; stale temporary files older than one hour are removed. The timer fails closed if the user GVfs mount is absent and does not mount or broaden the NAS share.

The current first-run backup set is present under:

/run/user/1002/gvfs/smb-share:server=nas2.local,share=netbackup/UmbraTrans/backups

Check timer status with systemctl status umbratrans-backup.timer and the last run with journalctl -u umbratrans-backup.service.

Description
UmbraTrans control system: repository, API, and compute substrate.
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