## What does this PR do?
The starter distribution now comes with all the required packages to
support persistent stores—like the agent store, metadata, and
inference—using PostgreSQL. Users can enable PostgreSQL support by
setting the `ENABLE_POSTGRES_STORE=1` environment variable.
This PR consolidates the functionality from the removed `postgres-demo`
distribution into the starter distribution, reducing maintenance
overhead.
**Closes: #2619**
**Supersedes: #2851** (rebased and updated)
## Changes Made
1. **Added PostgreSQL support to starter distribution**
- New `run-with-postgres-store.yaml` configuration
- Automatic config switching via `ENABLE_POSTGRES_STORE` environment
variable
- Removed separate `postgres-demo` distribution
2. **Updated to new build system**
- Integrated postgres switching logic into Containerfile entrypoint
- Uses new `storage_backends` and `storage_stores` API
- Properly configured both PostgreSQL KV store and SQL store
3. **Updated dependencies**
- Added `psycopg2-binary` and `asyncpg` to starter distribution
- All postgres-related dependencies automatically included
## How to Use
### With Docker (PostgreSQL):
```bash
docker run \
-e ENABLE_POSTGRES_STORE=1 \
-e POSTGRES_HOST=your_postgres_host \
-e POSTGRES_PORT=5432 \
-e POSTGRES_DB=llamastack \
-e POSTGRES_USER=llamastack \
-e POSTGRES_PASSWORD=llamastack \
-e OPENAI_API_KEY=your_key \
llamastack/distribution-starter
```
### PostgreSQL environment variables:
- `POSTGRES_HOST`: Postgres host (default: `localhost`)
- `POSTGRES_PORT`: Postgres port (default: `5432`)
- `POSTGRES_DB`: Postgres database name (default: `llamastack`)
- `POSTGRES_USER`: Postgres username (default: `llamastack`)
- `POSTGRES_PASSWORD`: Postgres password (default: `llamastack`)
## Test Plan
All pre-commit hooks pass (mypy, ruff, distro-codegen)
`llama stack list-deps starter` confirms psycopg2-binary is included
Storage configuration correctly uses PostgreSQL backends
Container builds successfully with postgres support
## Credits
Original work by @leseb in #2851. Rebased and updated by @r-bit-rry to
work with latest main.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Sébastien Han @leseb
---------
Signed-off-by: Sébastien Han <seb@redhat.com>
Co-authored-by: Sébastien Han <seb@redhat.com>
Migrates package structure to src/ layout following Python packaging
best practices.
All code moved from `llama_stack/` to `src/llama_stack/`. Public API
unchanged - imports remain `import llama_stack.*`.
Updated build configs, pre-commit hooks, scripts, and GitHub workflows
accordingly. All hooks pass, package builds cleanly.
**Developer note**: Reinstall after pulling: `pip install -e .`
