# KB Restore / Replication Runbook

This runbook is for proving Living IP KB/database redundancy on GCP.

Current source reality:

- canonical runtime DB: `/opt/teleo-eval/pipeline/pipeline.db`
- engine: SQLite WAL
- canonical Leo files:
  - `/opt/teleo-eval/workspaces/main/agents/leo`
  - `/opt/teleo-eval/workspaces/research-leo/agents/leo`
  - `/opt/teleo-eval/agent-state`

The standby target already exists:

- project: `teleo-501523`
- instance: `teleo-pgvector-standby`
- database: `teleo_kb`
- region: `europe-west6`
- network: `teleo-staging-net`
- private IP: `10.61.0.3`
- admin password secret: `gcp-teleo-pgvector-standby-postgres-password`

Do not call this redundancy complete until source data has been restored or replicated and queried from GCP.

## Source Backup Canary

Create a consistent source backup without stopping the VPS service:

```bash
ops/backup_vps_sqlite_kb.sh
```

The script:

- uses SQLite `.backup` against `/opt/teleo-eval/pipeline/pipeline.db`;
- compresses and hashes the backup on the VPS;
- archives Leo/KB files while excluding `secrets` and logs;
- copies both artifacts locally;
- verifies SHA-256 matches;
- runs `PRAGMA integrity_check` on a local restored SQLite copy;
- records proof under `outputs/gcp-infra-hardening-20260707/proofs/`.

This proves source exportability and local restore integrity. It does not prove GCP DB redundancy until a GCP restore/import/query canary also passes.

## Local SQLite-To-Postgres Restore Canary

Before importing into Cloud SQL, prove that the current SQLite backup can be
converted and restored into PostgreSQL without row loss:

```bash
SQLITE_BACKUP=./outputs/gcp-infra-hardening-20260707/private-backups/teleo-pipeline-sqlite-<timestamp>.db.gz \
  ops/run_sqlite_postgres_restore_canary.sh
```

The canary:

- generates a PostgreSQL import script with `ops/sqlite_to_postgres_dump.py`;
- recreates a shadow schema in a disposable `postgres:16-alpine` container;
- imports all user tables from the SQLite backup;
- compares source and target row counts for every table;
- writes a proof JSON under `outputs/gcp-infra-hardening-20260707/proofs/`;
- removes only its temporary canary container.

This is a local restore/parity proof, not GCP redundancy by itself. It is the
preflight that should pass before the same generated import is applied through
the approved Cloud SQL connector/VPC path.

## Required Proof

A successful restore or replication canary must retain:

- source dataset identity:
  - source host or dump artifact;
  - dump timestamp or replication slot timestamp;
  - source schema/database name.
- transfer proof:
  - dump object path in a versioned bucket, or logical replication subscription details;
  - row/table counts before import where available.
- target proof:
  - `teleo-pgvector-standby` readback;
  - `teleo_kb` database readback;
  - extension readback for `vector` if the restored schema needs pgvector;
  - representative query readback for core KB tables.
- failure boundary:
  - exact missing secret, source access, schema incompatibility, extension issue, or import error.

## One-Shot SQLite Export / GCP Restore Path

Use this while the canonical DB remains SQLite on the VPS and we need a GCP restore drill.

1. Run `ops/backup_vps_sqlite_kb.sh`.
2. Upload the resulting SQLite backup and Leo/KB tarball to a versioned GCS bucket such as `gs://teleo-501523-prod-backups/kb-dumps/`.
3. Run the local SQLite-to-Postgres restore canary above and retain its proof.
4. Convert or replay the SQLite data into Cloud SQL with the explicit generated migration/import script. Do not run blind string rewrites against the SQLite dump.
5. Install required extensions on Cloud SQL:

```sql
create extension if not exists vector;
```

6. From a trusted VPC runtime or Cloud SQL connector path, run readbacks:

```sql
select current_database();
select extname, extversion from pg_extension where extname = 'vector';
select schemaname, tablename from pg_tables where schemaname not in ('pg_catalog', 'information_schema') order by 1, 2 limit 50;
```

7. Retain the SQLite backup hash, GCS object generation, import/conversion operation, query output, and row-count sample.

## Logical Replication Path

Use this only if the canonical source becomes Postgres or a Postgres mirror exists. SQLite cannot be logically replicated into Cloud SQL Postgres without an intermediate conversion/sync layer.

Required source privileges:

- replication-capable source user;
- publication over the intended schemas/tables;
- network path from GCP to source, or source-to-GCP path through an approved proxy/tunnel.

Required target steps:

```sql
create extension if not exists vector;
create subscription <subscription_name>
connection '<redacted source connection string>'
publication <publication_name>;
```

Retain only redacted connection metadata. Do not commit or paste credentials.

## Current Blocker

As of this run, GCP has the standby target, a repeatable SQLite/KB export script,
and a local SQLite-to-Postgres restore canary. It does not have an approved GCP
upload/restore credential in the current local session, nor a retained Cloud SQL
import/query proof. That is why the readiness checker still reports:

- `kb_source_restore_access = blocked`
- `kb_restore_or_replication = blocked`

The next real canary is:

source SQLite/KB backup -> upload to versioned GCS bucket -> convert/import into `teleo_kb` -> install/verify `vector` if needed -> run representative KB queries on GCP -> retain proof.