Micronaut — Database migrations (Flyway)

Apply Flyway migration guidelines for Micronaut.

What is covered in this Skill?

• micronaut-flyway with JDBC/Hikari and database drivers
• Versioned SQL under src/main/resources/db/migration
• flyway.datasources.* (per-datasource) configuration in YAML/properties
• Tests with Testcontainers and real migration chains
• Coordination with @511-frameworks-micronaut-jdbc and @512-frameworks-micronaut-data

Scope: Apply recommendations based on the reference rules and good/bad examples.

Constraints

Before applying Flyway or SQL changes, ensure the project compiles. After improvements, run full verification.

• MANDATORY: Run ./mvnw compile or mvn compile before applying any change
• SAFETY: If compilation fails, stop immediately
• VERIFY: Run ./mvnw clean verify or mvn clean verify after applying improvements
• BEFORE APPLYING: Read the reference for detailed rules and good/bad patterns

When to use this skill

• Add or review Flyway migrations in a Micronaut project
• Configure micronaut-flyway or db/migration layout

Reference

For detailed guidance, examples, and constraints, see references/513-frameworks-micronaut-db-migrations-flyway.md.