duckgres/docker-compose.yaml at main · PostHog/duckgres · GitHub

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services:
  postgres:
    image: postgres:16-alpine
    container_name: ducklake-metadata
    environment:
      POSTGRES_USER: ducklake
      POSTGRES_PASSWORD: ducklake
      POSTGRES_DB: ducklake
    ports:
      - "5433:5432"
    volumes:
      - ducklake-data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ducklake -d ducklake"]
      interval: 5s
      timeout: 5s
      retries: 5

  minio:
    image: docker.io/pgsty/silo:RELEASE.2026-09-03T13-18-01Z@sha256:b616a0cf8cb281e7e6bb3c9b1fb53875b4016a2878223925541c18f82d6c5ca3
    container_name: ducklake-storage
    command: server /data --console-address ":9001"
    environment:
      MINIO_ROOT_USER: minioadmin
      MINIO_ROOT_PASSWORD: minioadmin
    ports:
      - "9000:9000"   # S3 API
      - "9001:9001"   # Web console
    volumes:
      - minio-data:/data
    healthcheck:
      test: ["CMD", "mcli", "ready", "local"]
      interval: 5s
      timeout: 5s
      retries: 5

  # Creates the ducklake bucket on startup
  minio-init:
    image: docker.io/pgsty/silo:RELEASE.2026-09-03T13-18-01Z@sha256:b616a0cf8cb281e7e6bb3c9b1fb53875b4016a2878223925541c18f82d6c5ca3
    container_name: ducklake-storage-init
    depends_on:
      minio:
        condition: service_healthy
    entrypoint: >
      /bin/sh -c "
      mcli alias set minio http://minio:9000 minioadmin minioadmin;
      mcli mb minio/ducklake --ignore-existing;
      mcli anonymous set download minio/ducklake;
      echo 'Bucket ducklake created successfully';
      "

volumes:
  ducklake-data:
  minio-data: