ulfblk-docker-dev 0.1.0

Docker Compose dev infrastructure: PostgreSQL, Redis, ChromaDB with health checks and env helpers

bloque-docker-dev

Docker Compose dev infrastructure for the Bloques ecosystem. Provides PostgreSQL 16, Redis 7, and ChromaDB with health-check utilities and environment helpers.

This is NOT app containerization. For production Docker, see bloque-docker-prod.

Services

Service	Image	Default Port	Profile
PostgreSQL 16	postgres:16-alpine	5432	core, ai
Redis 7	redis:7-alpine	6379	core, ai
ChromaDB	chromadb/chroma:latest	8000	ai

Quick Start

# Start core services (PostgreSQL + Redis)
docker compose -f packages/python/bloque-docker-dev/docker-compose.yml --profile core up -d

# Start all services including ChromaDB
docker compose -f packages/python/bloque-docker-dev/docker-compose.yml --profile ai up -d

# Stop everything
docker compose -f packages/python/bloque-docker-dev/docker-compose.yml --profile ai down

Environment Defaults

Copy .env.example to .env and adjust as needed. All values have sensible defaults for local development.

Python API

Load environment variables

from bloque_docker_dev.env import load_dev_env

# Sets DATABASE_URL, REDIS_URL, CHROMADB_URL if not already set
defaults = load_dev_env()
print(defaults.postgres_url)

Health checks

import asyncio
from bloque_docker_dev.health import check_services, wait_for_services

# One-shot check
status = asyncio.run(check_services())
# {"postgres": True, "redis": True, "chromadb": False}

# Wait until all services are ready (raises TimeoutError if not)
status = asyncio.run(wait_for_services(max_wait=30.0))

Init SQL

The initdb/ directory contains SQL scripts that run on first PostgreSQL start:

• 01-extensions.sql - Installs pgcrypto and uuid-ossp extensions
• 02-rls-example.sql - Example RLS setup matching ulfblk-multitenant patterns

Volumes

Uses named volumes (not bind mounts) to avoid Windows/WSL permission issues:

• pgdata - PostgreSQL data
• redisdata - Redis AOF persistence
• chromadata - ChromaDB collections

Dependencies

• ulfblk-core (required)
• httpx (HTTP health checks for ChromaDB)