integration: add via grant route steering tests

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Add integration tests validating that via grants correctly steer
routes to designated nodes per client group:

- TestGrantViaSubnetSteering: two routers advertise the same
  subnet, via grants steer each client group to a specific router.
  Verifies per-client route visibility, curl reachability, and
  traceroute path.

- TestGrantViaExitNodeSteering: two exit nodes, via grants steer
  each client group to a designated exit node. Verifies exit
  routes are withdrawn from non-designated nodes and the client
  rejects setting a non-designated exit node.

- TestGrantViaMixedSteering: cross-steering where subnet routes
  and exit routes go to different servers per client group.
  Verifies subnet traffic uses the subnet-designated server while
  exit traffic uses the exit-designated server.

Also add autogroupp helper for constructing AutoGroup aliases in
grant policy configurations.

Updates #2180

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This commit is contained in:

Kristoffer Dalby

2026-03-22 20:43:57 +00:00

parent 8358017dcf

commit a739862c65

2 changed files with 1187 additions and 0 deletions

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integration/route_test.go

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