Files
arista-evpn-vxlan-clab/transforms/templates/vxlan_yang.j2
Damien 584a4ad5a4 feat: Add Infrahub Jinja2 transforms for VLANs, interfaces, and VXLAN (#20)
Add three GraphQL queries, Jinja2 templates, and integration tests for
generating YANG-style JSON configuration payloads from Infrahub intent data,
suitable for gNMI Set operations on Arista EOS devices.

Queries (transforms/queries/):
- vlan_intent.gql: Fetches VLANs for a device via VTEP mappings and SVI
  interfaces, including VNI associations.
- interface_intent.gql: Fetches all interface types (loopback, ethernet, vlan,
  lag) with IP addresses and type-specific attributes.
- vxlan_intent.gql: Fetches VTEP config, VLAN-to-VNI mappings, and VRF-to-VNI
  mappings (L3VNI) via VRF device assignments.

Templates (transforms/templates/):
- vlan_yang.j2: Merges VLANs from both VTEP and SVI sources, deduplicates by
  vlan_id, and emits a sorted JSON array.
- interface_yang.j2: Emits a JSON array of interfaces sorted by name, with a
  "type" discriminator field for each interface kind.
- vxlan_yang.j2: Emits a JSON object with vtep config, vlan_vni_mappings, and
  vrf_vni_mappings sections.

Integration tests (transforms/tests/):
- One test directory per transform with input.json (sample GraphQL response for
  leaf1), output.json (expected result), and test.yml config.
- Test data reflects the lab topology: leaf1 VTEP 10.0.255.11, VLAN 40 / VNI
  110040, MLAG VLANs 4090/4091, underlay Ethernet11/12.

.infrahub.yml updated with queries and jinja2_transforms sections.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-02-28 11:00:24 +01:00

89 lines
3.0 KiB
Django/Jinja

{#
vxlan_yang.j2 — Produce a JSON object representing the VXLAN/VTEP configuration
for the device, including VLAN-to-VNI mappings and VRF-to-VNI mappings.
Input: GraphQL response from vxlan_intent query.
#}
{%- set vtep_edges = data.InfraVTEP.edges -%}
{%- set vrf_edges = data.InfraVRFDeviceAssignment.edges -%}
{#— Build VTEP section (there is one VTEP per device) —#}
{%- if vtep_edges | length > 0 -%}
{%- set vtep = vtep_edges[0].node -%}
{%- set source_iface = null -%}
{%- if vtep.source_interface and vtep.source_interface.node -%}
{%- set source_iface = vtep.source_interface.node.name.value -%}
{%- endif -%}
{#— Build VLAN-to-VNI mapping list —#}
{%- set vlan_vni_list = [] -%}
{%- for mapping_edge in vtep.vlan_vni_mappings.edges -%}
{%- set m = mapping_edge.node -%}
{%- set vlan_id = null -%}
{%- set vlan_name = null -%}
{%- if m.vlan and m.vlan.node -%}
{%- set vlan_id = m.vlan.node.vlan_id.value -%}
{%- set vlan_name = m.vlan.node.name.value -%}
{%- endif -%}
{%- set vni_val = null -%}
{%- set vni_type_val = null -%}
{%- if m.vni and m.vni.node -%}
{%- set vni_val = m.vni.node.vni.value -%}
{%- set vni_type_val = m.vni.node.vni_type.value -%}
{%- endif -%}
{%- set _ = vlan_vni_list.append({
"vlan_id": vlan_id,
"vlan_name": vlan_name,
"vni": vni_val,
"vni_type": vni_type_val
}) -%}
{%- endfor -%}
{#— Build VRF-to-VNI mapping list —#}
{%- set vrf_vni_list = [] -%}
{%- for vrf_edge in vrf_edges -%}
{%- set assignment = vrf_edge.node -%}
{%- set vrf_name = null -%}
{%- set l3vni = null -%}
{%- set import_rts = [] -%}
{%- set export_rts = [] -%}
{%- if assignment.vrf and assignment.vrf.node -%}
{%- set vrf_node = assignment.vrf.node -%}
{%- set vrf_name = vrf_node.name.value -%}
{%- if vrf_node.l3vni and vrf_node.l3vni.node -%}
{%- set l3vni = vrf_node.l3vni.node.vni.value -%}
{%- endif -%}
{%- for rt_edge in vrf_node.import_targets.edges -%}
{%- set _ = import_rts.append(rt_edge.node.target.value) -%}
{%- endfor -%}
{%- for rt_edge in vrf_node.export_targets.edges -%}
{%- set _ = export_rts.append(rt_edge.node.target.value) -%}
{%- endfor -%}
{%- endif -%}
{%- set _ = vrf_vni_list.append({
"vrf": vrf_name,
"l3vni": l3vni,
"route_distinguisher": assignment.route_distinguisher.value,
"import_targets": import_rts,
"export_targets": export_rts
}) -%}
{%- endfor -%}
{%- set result = {
"vtep": {
"source_address": vtep.source_address.value,
"source_interface": source_iface,
"udp_port": vtep.udp_port.value,
"learn_restrict": vtep.learn_restrict.value,
"vlan_vni_mappings": vlan_vni_list | sort(attribute='vlan_id'),
"vrf_vni_mappings": vrf_vni_list
}
} -%}
{%- else -%}
{%- set result = {
"vtep": null,
"vrf_vni_mappings": []
} -%}
{%- endif -%}
{{ result | tojson(indent=2) }}