Dev
Mock YAML Config Generator
Starting a new service means assembling a configuration file from memory: database host, pool size, logging level, cache prefix, secret key. This generator produces a complete, realistic YAML config file for any app name and target environment, covering database connection settings, cache configuration, logging, and security keys in a single output you can copy straight into your repository. The app name input is used throughout the output — the database name becomes appname_development, the cache key prefix becomes appname:, and CORS origins reference the app name. The environment dropdown drives sensible defaults: development sets debug: true, logLevel: debug, pool_size: 5, workers: 1, and uses localhost for database and cache hosts; production sets debug: false, logLevel: warn, pool_size: 20, workers: 4, ssl: true, and uses internal hostnames. Staging falls between the two. Use the output as a starting scaffold: copy it into your repo, replace the database port and password with values from your secrets manager, and remove any sections your stack does not need. Never commit the generated secret_key to version control — treat it as a placeholder.
How to use
- Choose your options above
- Click Generate
- Copy your result
Detailed instructions
- Enter the app name.
- Choose the environment.
- Click Generate to produce a result.
- Copy the Generated YAML Config and use it where you need it.
Use Cases
- •Bootstrapping a new Node.js or Python microservice with a complete dev-environment config in seconds
- •Populating Jest or Pytest fixtures that require realistic YAML config structures to test config-parsing logic
- •Creating accurate staging vs. production config examples for internal runbooks or Confluence documentation
- •Demoing configuration patterns in a team onboarding session without exposing real database credentials
- •Seeding a Kubernetes Helm chart prototype with realistic app-level configuration before live values are finalized
Tips
- →Generate it a few times and keep the version that fits best.
- →Adjust the options above to steer the result toward what you need.
- →Replace the placeholder values with your real data before using it.
- →Everything runs free in your browser — no signup or install required.
FAQ
how do I generate a YAML config file for a staging environment
Select 'staging' from the Environment dropdown and enter your app name, then click generate. The output includes environment-appropriate settings for database connections, logging verbosity, and security flags — ready to drop into your repo as a starting point.
can I use a generated YAML config in a real production deployment
No — these configs are intentionally mock data for development and testing. Before any real deployment, replace all placeholder credentials, connection strings, and secret keys with values from a secure secrets manager like Vault or AWS Secrets Manager.
what changes between the development and production YAML output
Production output sets debug: false, logLevel: warn, ssl: true, workers: 4, pool_size: 20, and uses internal hostnames like db.internal and cache.internal. Development output reverses all of those: debug: true, logLevel: debug, workers: 1, pool_size: 5, and uses localhost for all connections.
is the generated secret_key safe to use
The generated secret_key is a random 32-character alphanumeric string, which is a realistic placeholder. Treat it as a stand-in only: replace it with a cryptographically generated secret from your secrets manager before any deployment, and never commit a real secret key to version control.
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