Infrahub Generator Creator

Infrahub Generator Creator

Overview

Expert guidance for creating Infrahub Generators. Generators query data from Infrahub via GraphQL and create new nodes and relationships based on the result -- enabling design-driven automation where a "design" object automatically creates downstream infrastructure.

When to Use

• Building design-driven automation (topology -> devices)
• Creating objects from templates or design definitions
• Implementing idempotent create-or-update workflows
• Auto-generating infrastructure from high-level designs
• Understanding the generator tracking system

Rule Categories

Generator Basics

Every generator has three components:

1. Target group -- objects that trigger the generator
2. GraphQL query (.gql file) -- fetches the design data
3. Python class -- inherits from InfrahubGenerator, implements generate()

from infrahub_sdk.generator import InfrahubGenerator

class MyGenerator(InfrahubGenerator):
    async def generate(self, data: dict) -> None:
        obj = await self.client.create(
            kind="DcimDevice",
            data={"name": "spine-01"},
        )
        await obj.save(allow_upsert=True)

Supporting References

• examples.md -- Complete Generator patterns (POP topology, network segment, minimal)
• ../infrahub-common/graphql-queries.md -- GraphQL query writing reference
• ../infrahub-common/infrahub-yml-reference.md -- .infrahub.yml project configuration
• ../infrahub-common/rules/ -- Shared rules (git integration, caching gotchas)
• ../infrahub-schema-creator/SKILL.md -- Schema definitions Generators work with
• rules/ -- Individual rules organized by category prefix