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feat: Add Infrahub Jinja2 transform for VRF/L3VNI configuration (#21) (#25)

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## Summary

Implements Infrahub Jinja2 Transform for VRF/L3VNI configuration, generating structured JSON payloads from Infrahub intent data. Closes #21.

## What's included

- **GraphQL query** (`transforms/queries/vrf_intent.gql`): Queries `InfraVRFDeviceAssignment` by device name, fetching VRF details, L3VNI, route targets, and device-specific route distinguisher
- **Jinja2 transform** (`transforms/templates/vrf_yang.j2`): Renders VRF config payloads with defensive null handling (lessons learned from #20)
- **`.infrahub.yml`** updated with the new query and transform definitions
- **Tests** (`transforms/tests/vrf_yang/`) using correct Infrahub pytest format (`jinja2-transform-smoke` + `jinja2-transform-unit-render`)

## Validation

All transforms render correctly:

| Device | Expected | Result |
|--------|----------|--------|
| `leaf3` | VRF gold, RD `10.0.250.13:1`, L3VNI 100001 | ✅ |
| `leaf7` | VRF gold, RD `10.0.250.17:1`, L3VNI 100001 | ✅ |
| `leaf1` | Empty array (no VRF assignment) | ✅ |
| `spine1` | Empty array (no VRF assignment) | ✅ |

## Usage

```bash
# Local debugging
infrahubctl render vrf_yang_transform device_name=leaf3

# API endpoint
GET /api/transform/jinja2/vrf_yang_transform?device_name=leaf3
```

## Related

- Depends on: #20 (base transforms infrastructure, already merged)
- Reference: Arista EVPN Type-5 / L3VXLAN configuration from lab topology
This commit was merged in pull request #25.
This commit is contained in:
Damien Arnodo
2026-03-01 10:45:01 +00:00
parent 668e9cbada
commit a105e44bbd
6 changed files with 246 additions and 0 deletions
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.infrahub.yml
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@@ -24,6 +24,8 @@ queries:
file_path: infrahub/transforms/queries/interface_intent.gql
- name: vxlan_intent
file_path: infrahub/transforms/queries/vxlan_intent.gql
- name: vrf_intent
file_path: infrahub/transforms/queries/vrf_intent.gql
jinja2_transforms:
- name: vlan_yang_transform
@@ -38,3 +40,7 @@ jinja2_transforms:
description: "Generate VXLAN/VTEP configuration payload from Infrahub intent"
query: vxlan_intent
template_path: infrahub/transforms/templates/vxlan_yang.j2
- name: vrf_yang_transform
description: "Generate VRF/L3VNI configuration payload from Infrahub intent"
query: vrf_intent
template_path: infrahub/transforms/templates/vrf_yang.j2