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policy/v2: SaaS-derived compat tests for nodeAttrs

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Adds a data-driven test that loads testdata/nodeattrs_results/*.hujson
and diffs the captured SaaS-rendered netmaps against headscale's
compileNodeAttrs output. Each capture is one scenario the SaaS
control plane has rendered against the same policy headscale is asked
to compile -- the test enforces shape parity per node.

tailnet_state_caps.go enumerates the caps SaaS emits where headscale
has no equivalent concept yet (user-role admin/owner, tailnet lock,
services host, app connectors, internal magicsock and SSH tuning,
tailnet-state metadata) plus the always-on baseline (admin, ssh,
file-sharing) and the taildrive pair. stripUnmodelledTailnetStateCaps
filters both sides of cmp.Diff so the comparison focuses on the
policy-driven caps. PeerCapMap encodes which caps the Tailscale
client reads from the peer view (suggest-exit-node when exit routes
are approved, etc.) for use by the mapper.

testcapture switches to typed tailcfg/netmap/filtertype/apitype
values so schema drift between the capture tool and headscale
becomes a compile error rather than a silent test failure. Existing
compat suites (acl, grants, routes, ssh, issue_3212) move to the
typed shape.

The 53 SelfNode netmap captures and the 7 anonymizer-corrupted
suggest-charmander -> suggest-exit-node restorations in
routes_results / issue_3212 ride along.
This commit is contained in:
Kristoffer Dalby 2026-05-11 14:51:09 +00:00
parent 3f73ed5404
commit 078b9e308f
72 changed files with 463447 additions and 183 deletions
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4
hscontrol/policy/v2/policy_test.go
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@ -1820,8 +1820,8 @@ func TestViaRoutesForPeer(t *testing.T) {
// `autogroup:internet` must keep the exit node visible to the source
// in BuildPeerMap so the Tailscale client surfaces it in
// `tailscale exit-node list`. Authoritative SaaS captures
// (tscap routes-b17/b18, 2026-04-28) confirm SaaS includes the exit
// node in the source's Peers with 0.0.0.0/0 and ::/0 in AllowedIPs.
// (routes-b17/b18, 2026-04-28) confirm SaaS includes the exit node
// in the source's Peers with 0.0.0.0/0 and ::/0 in AllowedIPs.
func TestBuildPeerMap_AutogroupInternetMakesExitNodeVisible(t *testing.T) {
t.Parallel()