---
id: RCP-WP-0002
type: workplan
title: "First deployment of canned-prompts on Railiance"
domain: agents
repo: rapp-canned-prompts
status: finished
owner: codex
topic_slug: practice
created: "2026-09-06"
updated: "2026-09-06"
state_hub_workstream_id: "11874f32-ac36-5bb9-a0a5-e7a259f5972c"
---

# First deployment of canned-prompts on Railiance

The package is written and validated; what remains needs credentials and a
published image, which are operator actions rather than authoring ones.

`readiness_state` is `draft` and stays there until T04 produces evidence.
Topology is not readiness (ADR-0006): binding this rapp to a reef does not make
it deployed.

## Publish the image and pin its digest

```task
id: RCP-WP-0002-T01
status: done
priority: high
state_hub_task_id: "3e7faf50-8fe9-5ef3-8a75-1d9e586d6c0f"
```

`declarations/rapp.yaml` carries `version: pending-publication`, and both
manifests carry a matching tag. This is deliberate: a placeholder shaped like a
real digest could be mistaken for something deployable, and a rapp that pins
nothing is a stub that tells the fleet tooling a deployment exists when none
does.

The image builds and was verified locally in `canned-prompts`
(`CANP-WP-0006-T06`): it starts non-root, all six service-level smoke checks
pass against the running container, and the reference CLI installs a package
from it over HTTP.

**Done, 2026-09-07.** Published as
`forgejo.coulomb.social/coulomb/canned-prompts:0.1.0` and pinned by **digest**
in the declaration and both manifests:

```
sha256:e0ded3c7fe2548c910445deaa31ec42e84f129a92aa324841e231a53fee1f123
```

Pinned by digest rather than tag deliberately: a tag can be moved, and
`live-image-digest-match` would then pass against something that is no longer
what this repo reviewed.

Verified before pushing — the image resolves a file-mounted credential, carries
the reference validator, and ships the migration scripts — and verified after,
by fetching the manifest back **by digest** rather than trusting the push
output. `readiness_state` moved `draft` → `declared`.

## Provision database roles and credentials

```task
id: RCP-WP-0002-T02
status: done
priority: high
state_hub_task_id: "61f5cbd7-8fcf-5156-87da-57239ae55d8f"
```

Two roles, deliberately separate: a runtime role that reads and writes rows, and
a migration role that owns the schema. A service able to `ALTER` its own tables
at runtime turns any code defect into a schema defect.

Needed from `rapp-postgres` and the credential broker:

- database `canned_prompts` on `platform-pg-2`;
- `creds/canned-prompts-runtime` and `creds/canned-prompts-migration` in OpenBao
  under the `database` path;
- the `openbao-canned-prompts-eso-token` secret in `external-secrets`.

`creds/canned-prompts-publish` is **optional**. Without it the service is
read-only, which is the correct posture until per-publisher identity exists —
not a misconfiguration to be worked around.

**Requested, 2026-09-07.** `rapp-postgres` now carries
`consumers/canned-prompts.yaml`, authored against its documented
`PostgresConsumer` shape, and its agent has the request in its inbox.

The declaration only. `make provision-consumers` — the step that actually mints
OpenBao credentials — was deliberately **not** run: credential issuance is
`rapp-postgres`' to perform, and running it from the consuming side would take a
decision that is not this repo's, however available the script happens to be.

**Received 2026-09-08.** `rapp-postgres` provisioned and sent a database-owner
receipt with 12 checks proven live: runtime DDL denied (SQLSTATE 42501),
statement timeouts and `search_path` as declared, and both logins refused
CONNECT on `sbom_nexus` — the cell is shared, so that last one matters.

`creds/canned-prompts-publish` was **not** created, as asked. The service runs
read-only, which is the intended posture rather than a gap.

## Apply and migrate

```task
id: RCP-WP-0002-T03
status: done
priority: high
state_hub_task_id: "0b8d206e-bd28-5950-abf7-d824015c09a4"
```

Order matters, and the ordering is the point rather than a convenience:

Verified against the live cluster before writing: `platform-pg-2` exists and is
healthy, and the `railiance.io/postgres-client: platform-pg-2` label matches
what `sbom-nexus` actually carries in the cluster rather than only what its repo
says.

1. `manifests/00-namespace.yaml` — the `railiance.io/postgres-client` label is
   what lets the database namespace accept traffic;
2. `manifests/database-secrets.yaml`, then wait for the secrets to materialize;
3. `manifests/migration.yaml` — the Job runs `alembic upgrade head` under the
   migration role and must complete before any replica serves;
4. `manifests/runtime.yaml`.

The runtime deliberately does not migrate at start-up. Migrations as a Job keep
a schema rollback separate from a code rollback and stop replicas racing each
other.

**Done 2026-09-08, after four defects that only a real rollout could expose.**
Each is recorded in
`docs/evidence/RCP-WP-0002-T04-first-deployment-2026-09-08.md`; the two worth
repeating here failed *silently*:

- `SET ROLE` opened an implicit transaction that Alembic then nested inside
  rather than owning, so every revision logged as applied and was rolled back.
  Alembic reported success against an empty database.
- The egress NetworkPolicy selected `app.kubernetes.io/name`, which the
  migration Job does not carry. The Job matched only the default-deny and
  succeeded exactly once — because it ran before the policies existed. The next
  migration would have failed with a DNS error. Now selects `part-of`, and
  ingress is a separate policy so the Job is never reachable.

`rapp-postgres` asked to be told when the first revision landed so they can
re-run ownership reconciliation. Notified.

## Verify and record evidence

```task
id: RCP-WP-0002-T04
status: done
priority: high
state_hub_task_id: "6d9eb97c-57e2-5b74-b6eb-455076713417"
```

Run `tools/smoke.sh`. It checks what only the cluster can answer — secrets
materialized, Service is ClusterIP with no Ingress, NetworkPolicies present,
live image digest matches the pin — and calls `canned-prompts`'
`service/tools/smoke.py` for health and migration head rather than holding a
second opinion about whether the service is healthy.

Record the output as evidence, then move `readiness_state` to `deployed`, and to
`verified` only with that evidence attached.

**Done 2026-09-08.** All six deployment checks and all six service-level checks
pass; evidence at
`docs/evidence/RCP-WP-0002-T04-first-deployment-2026-09-08.md`.
**Then corrected.** I recorded `verified` after a passing smoke run and found
the deployment `0/1` eight hours later: platform credentials are 30-minute
leases, and the service read the mounted URL once at start-up. External Secrets
kept the file current; the engine held the URL it booted with. Fixed in 0.1.5 by
re-reading the credential for every new connection, with `pool_recycle` inside
the lease TTL.

`readiness_state` is **`verified`** on evidence: continuously ready across a full lease rotation, zero readiness
failures, no restarts. Log at
`docs/evidence/RCP-WP-0002-T04-lease-rotation-2026-09-08.log`.

The bar for `verified` is observation across a rotation, because a smoke run
inside the first window cannot tell a service that works from one that works
*once* — an availability property is not provable by a single sample. It took
three attempts to build an instrument that could return that verdict honestly;
all three failures are recorded in the evidence file.

**The check that could never have passed.** `live-image-digest-match` read the
pin with a line-offset `grep`, which returned empty once comments were added
above `version:` — and the check then degraded to reporting "not pinned yet"
instead of failing. It reported that while a digest *was* pinned. Now parsed as
YAML. A verification step that cannot fail is worth less than none, because it
is trusted.

## Decide per-publisher identity

```task
id: RCP-WP-0002-T05
status: done
priority: medium
state_hub_task_id: "1252f3a1-12ce-5bc1-b003-3e8999d03459"
```

Blocked on a decision in `canned-prompts`, recorded here because it is the
thing that decides what this deployment is *for*.

**Done 2026-09-08**, upstream in `canned-prompts` (image 0.2.0, migration
`0003`).

The decision was already made and research found it rather than my judgement
supplying it: **DR-3, resolved 2026-07-10** — app-local accounts, platform OIDC
demand-gated on client SSO requests, instance consolidation, or local-account
toil across more than two apps. None has fired here and no Keycloak is
deployed, so OIDC was ruled out by fleet decision.

App-local publisher tokens, because a registry is consumed by CLIs and agents:
no browser, no session, and a login surface nothing uses is a liability. The
entire authentication boundary stays in `auth.py`, so contract § 2.3 holds and a
later OIDC switch is bounded.

§ 20.1 namespace ownership is now a real access decision — `owner` names a
publisher. A closed namespace with **no** owner admits nobody, including the
operator, because reading a missing owner as "anyone" would invert the point of
closing it.

**Still open, deliberately:** the NetworkPolicy ingress rule admits any
namespace. Publisher identity now gates *writes*, so this is no longer the only
control, but it should narrow once the set of legitimate callers is known.
Recorded rather than tightened on a guess.

**Reversal on record.** I asked `rapp-postgres` not to issue
`creds/canned-prompts-publish`, then asked for it. Both were right in their
moment: with one indistinguishable identity there was nothing worth
authenticating; with real publishers the operator token becomes the bootstrap
path that mints the first one. Requested as a reversal rather than quietly
asking for the opposite of the earlier argument.