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Docker Compose YAML Validator

Validate Docker Compose manifests, inspect services, volumes, networks, and environment syntax rules.

docker-compose.yml43 lines

About Docker Compose YAML Validator

Deploying broken docker-compose.yml files to production or CI can halt deployments. The OpsKitTools Docker Compose Validator lints your file structure against the Docker Compose specification, verifying top-level keys ('services', 'version', 'volumes', 'networks') and service-level configurations.

How to Use This Tool

  1. Paste your 'docker-compose.yml' contents into the editor.
  2. The validator scans the YAML syntax and verifies Docker Compose service structure.
  3. Review detected services, container names, exposed port mappings, and volume mounts.
  4. Fix any flagged errors before committing or running 'docker compose up'.

Practical Examples & Use Cases

Standard Web + Database Stack

Input
version: '3.8'
services:
  web:
    image: nginx:alpine
    ports:
      - '80:80'
  db:
    image: postgres:16
    environment:
      POSTGRES_PASSWORD: secret

Validates version syntax, service dictionaries, port strings, and environment variables.

Frequently Asked Questions

If unquoted, YAML parsers can interpret colon values like '22:22' as base-60 sexagesimal numbers or fail on specific integer notations.

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