General
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### Docker (Compose
Swarm
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General
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### Node.js (dotenv
envalid
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General
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- Create a typed config module that exports validated
typed configuration objects
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General
PromptBeginner5 minmarkdown
- Use `dotenv-flow` for environment-specific file loading (`.env.local`
`.env.production`)
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General
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- Include units in variable names where applicable (e.g.
`TIMEOUT_MS`
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General
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- Prefix variables with service or domain identifiers (e.g.
`DB_`
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General
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- Never log environment variable values
only their keys
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General
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After completing environment configuration
verify:
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General
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- Application port
host
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General
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- CDN and asset storage configuration (S3
CloudFront)
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General
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- Message queue connection parameters (RabbitMQ
Kafka)
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Data
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- CI/CD: ephemeral environments
test databases
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Data
PromptBeginner5 minmarkdown
- Connection strings with proper pooling parameters (PostgreSQL
MySQL
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Data
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- Staging: production-mirror setup
separate databases
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General
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- Production: performance-optimized
hardened security
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General
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- Implementing secret storage solutions (HashiCorp Vault
AWS Secrets Manager
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Data
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- Check that no sensitive data is exposed in logs
error messages
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General
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- Structuring `.env`
`.env.example`
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General
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- Set up networking
port mappings
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General
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- Set up docker-compose files with proper override chains (`docker-compose.yml`
`docker-compose.override.yml`
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General
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- Suggest encryption for highly sensitive values (e.g.
vault integration
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General
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- Use strong
unique values for all secrets and credentials
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General
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- Set proper file permissions (e.g.
600 for `.env` files)
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Data
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- **Section organization**: Group variables by service or concern (database
cache
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