Docker Compose Generator

Local processing

Build a configurable local stack with services, loopback ports, named volumes, environment variables and dependencies

Learn More About This Tool

Project nameService starter

PostgreSQL 18+ uses a version-specific data directory under /var/lib/postgresql. Changing the major tag requires a deliberate data migration and mount review. Image documentation

1 of 20 services

postgres · postgres:18

Service nameImage referenceRestart policy

Published ports

Bindings use 127.0.0.1. Remove a mapping to keep that port off the host.

Host portContainer portProtocol

Named volumes

Volume nameContainer mount pathRead only

Environment · KEY=value, one per lineCommand arguments · JSON array, blank for image default

Start after these services

Add another service to configure startup order.

Generated files

Required .env variables: POSTGRES_PASSWORD. All image tags can change; pin digests for reproducibility.

compose.yaml

# Local development starter. Review images, licenses, secrets and readiness before running.
name: local-stack
services:
  postgres:
    image: postgres:18
    restart: unless-stopped
    environment:
      POSTGRES_USER: dev
      POSTGRES_DB: app
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?Set POSTGRES_PASSWORD in .env}
    ports:
      - target: 5432
        published: "5432"
        host_ip: 127.0.0.1
        protocol: tcp
    volumes:
      - type: volume
        source: postgres-data
        target: /var/lib/postgresql
        read_only: false
volumes:
  postgres-data: {}

.env.example

# Copy to .env and replace every placeholder. Keep .env out of version control.
POSTGRES_PASSWORD=CHANGE_ME

Open Compose analyzer

Before running locally: docker compose config --quiet. This generator checks its supported fields; your installed Compose and the images provide the runtime validation.

Compose Specification

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