📥 docker-compose.yml
🔍 Validation Results
What is Docker Compose Validator?
The Docker Compose Validator is an online tool designed for DevOps engineers and developers that validates docker-compose.yml file syntax and configuration in real-time. Paste your YAML content and the tool instantly checks service definitions, port mappings, volume mounts, network configurations, and pinpoints error line numbers to help quickly resolve configuration issues.
Core Features
- YAML Syntax Check: Validates indentation, format, quotes, and other basic YAML syntax issues
- Service Configuration Validation: Checks each service for image/build, port mapping format, volume mount format
- Network and Volume Validation: Verifies network and volume references are defined
- depends_on Check: Validates service dependency references point to defined services
- Error Line Detection: Each issue shows the specific line number for quick fixes
How to Use
Step 1: Paste your docker-compose.yml content, or click example buttons to load samples.
Step 2: Click "Validate" or use Ctrl+Enter shortcut.
Step 3: Review results showing error count, warning count, and passed checks.
Step 4: Fix issues based on error hints and re-validate until passing.
Use Cases
Case 1: CI/CD Pipeline
Validate docker-compose.yml before committing to avoid deployment failures and save CI/CD runtime.
Case 2: Team Collaboration
Team members validate compose files after changes, reducing code review burden.
Case 3: Learning Docker Compose
Beginners get real-time validation feedback while learning correct configuration syntax.
Extended Knowledge
Docker Compose is Docker's official multi-container orchestration tool using YAML files to define services, networks, and volumes. V3 is the current recommended format supporting deploy configuration for Swarm mode. Common top-level keys: services, networks, volumes, configs, secrets. Port mapping format: HOST:CONTAINER. Volume mount format: HOST_PATH:CONTAINER_PATH:MODE.