Production Docker Compose Generator

Application, PostgreSQL, Redis, and Nginx with safe dependencies

Secure (SSL)

Client-Side Processing

100% Free

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Instructions

1

Enter data
Enter content, paste text or load a file from disk.
2

Click the button
The tool will immediately process your data in the browser.
3

Get the result
Copy the finished text or save the file to your device.

                                                function runTool() {

                                                  return "Result ready in 0.1s";

                                                }

Project name

Versioned application image

Application port

Services

Application

PostgreSQL

Redis

Nginx

Options

Versioned PostgreSQL image

Database password variable

The generator inserts an environment variable reference, never its value.

Restart policy

Persistent named volumes

Services: 4

name: "myapp"

services:
  app:
    image: "registry.example.com/myapp:1.0.0"
    restart: unless-stopped
    environment:
      APP_ENV: production
      APP_DEBUG: "false"
      DB_CONNECTION: pgsql
      DB_HOST: db
      DB_PORT: "5432"
      DB_DATABASE: app
      DB_USERNAME: app
      DB_PASSWORD: "${POSTGRES_PASSWORD:?Set POSTGRES_PASSWORD in the environment}"
      REDIS_HOST: redis
      REDIS_PORT: "6379"
    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
    expose:
      - "9000"
    networks:
      - app-net

  db:
    image: "postgres:17-alpine"
    restart: unless-stopped
    environment:
      POSTGRES_DB: app
      POSTGRES_USER: app
      POSTGRES_PASSWORD: "${POSTGRES_PASSWORD:?Set POSTGRES_PASSWORD in the environment}"
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U app -d app"]
      interval: 10s
      timeout: 5s
      retries: 10
      start_period: 30s
    volumes:
      - db-data:/var/lib/postgresql/data
    networks:
      - app-net

  redis:
    image: "redis:7.4-alpine"
    restart: unless-stopped
    command: ["redis-server", "--appendonly", "yes"]
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 3s
      retries: 10
    volumes:
      - redis-data:/data
    networks:
      - app-net

  nginx:
    image: "nginx:1.28-alpine"
    restart: unless-stopped
    ports:
      - "80:80"
    volumes:
      - ./nginx.conf:/etc/nginx/conf.d/default.conf:ro
    depends_on:
      app:
        condition: service_started
    healthcheck:
      test: ["CMD-SHELL", "nginx -t"]
      interval: 30s
      timeout: 5s
      retries: 3
    networks:
      - app-net

networks:
  app-net:
    driver: bridge

volumes:
  db-data:
  redis-data:

Save the result as compose.yaml. Set the requested password variable, prepare nginx.conf, add a health check for your application, and verify the result with docker compose config.

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Production Docker Compose generator - a safer deployment baseline

The production Docker Compose generator assembles a compose.yaml file for an application, PostgreSQL, Redis, and Nginx. The result uses versioned images, persistent volumes, a private network, health checks, and dependencies that wait for the database and cache. A password never enters YAML; the file requires a named environment variable instead.

What the generated stack contains

Service	Role	Protection and readiness
`app`	your application image	no public port, only `expose`; waits for healthy `db` and `redis`
`db`	PostgreSQL	password from a required variable, `pg_isready`, data volume, no published port
`redis`	cache or queue	AOF persistence, `redis-cli ping` check, no host port
`nginx`	HTTP entry point and reverse proxy	versioned image, read-only configuration, `nginx -t` check, application dependency

The generator does not add the obsolete version key; current Docker Compose follows the Compose Specification. The top-level name gives the project a stable identity, so container, network, and volume prefixes do not depend on the directory name.

Versioned images instead of latest

The latest tag does not say which code a later pull will run. The form therefore requires a tag or digest for both the application and PostgreSQL. Defaults use the postgres:17-alpine series, redis:7.4-alpine, and nginx:1.28-alpine. For a critical deployment, pin a full patch tag or a sha256 digest and move updates through a controlled release process.

The application image belongs to the user, so the generator cannot know its correct release number. The default registry.example.com/myapp:1.0.0 is a safe example that must be replaced with an image from your registry. The Dockerfile generator can help define it, but the image still needs to be built, tested, and scanned before deployment.

Secrets stay outside compose.yaml

Do not enter a real database password in the form or commit one to the repository. The generator accepts only a variable name such as POSTGRES_PASSWORD and inserts required interpolation. Compose stops with a clear error if the variable is missing.

Set the variable in the deployment system, CI/CD secret manager, or a protected environment file outside version control. If you need a value-free name template, use the .env.example generator. An organization with a secret store can replace interpolation with Compose secrets after generation and adapt the application to read a file under /run/secrets.

Health checks and startup order

A running database process may not be ready for connections. PostgreSQL gets a pg_isready check and Redis gets redis-cli ping. The application uses long depends_on syntax with service_healthy, so it starts only after selected data services pass their checks. Nginx waits for the application service to start and validates its own configuration with nginx -t.

No universal application health check works for every image: PHP-FPM, Node, a queue worker, and an HTTP server expose readiness differently. After copying the file, add a test suited to the image, such as a request to a lightweight /health endpoint, and change the Nginx condition to service_healthy. That is more honest than a process-only test that can stay green while dependencies fail.

Network, ports, and data durability

All services join the private app-net network. PostgreSQL and Redis have no ports section, so they are not exposed on a host interface. The application uses expose, which documents a port inside the network without publishing it. Nginx port 80 is the only host entry point. TLS can terminate at an external load balancer, or the proxy configuration can be extended with protected certificates.

With volumes enabled, PostgreSQL and Redis data use named volumes declared at the top level. The generator does not mount a generic application directory because its path belongs to the custom image and a wrong mount could hide image files. Disabling the option removes data-service mounts and declarations, keeping the file syntactically valid but making data ephemeral. Leave volumes enabled in production and operate an independent database backup; a volume is not a backup.

Run and validate the configuration

Select services and enter a project name, application process port, and versioned images. Nginx requires the application because the generated stack assumes a reverse proxy.
Set the password variable name. Never provide the secret value to the generator.
Copy YAML to compose.yaml and prepare an nginx.conf that targets the app service and its port.
Set the secret in the environment, run docker compose config, and inspect the expanded model. The YAML validator can provide an additional syntax check.
Run docker compose up -d, then inspect docker compose ps, logs, health states, and the application readiness endpoint.

For a simpler local development file, the Docker Compose generator offers a broader development service set. This production variant deliberately avoids mounting the whole source tree and focuses on an immutable image pulled from a registry.

Frequently asked questions

Is the file ready to deploy without changes?

It is a safer baseline, but you must provide your application image, prepare nginx.conf, set the secret, add an application health check, and adapt backups, monitoring, resource limits, and TLS to your infrastructure.

Why is there no version key?

Current Docker Compose implements the living specification and treats the version field as obsolete. Omitting it removes warnings without losing any feature used by this file.

Why do PostgreSQL and Redis publish no ports?

Services communicate by name on the private Compose network. No host mapping reduces attack surface; administration is better performed through a controlled tunnel or a one-off container on that network.

Is a named volume enough for backups?

No. A volume preserves data when a container is replaced, but it does not protect against deletion, host failure, or application errors. Run regular backups and test restoration.

How should I add HTTPS safely?

Terminate TLS at a managed load balancer or reverse proxy, or mount certificates as secrets and add a dedicated Nginx configuration. Never copy a private key into an image or repository.