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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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12
hscontrol/policy/v2/tailscale_ssh_data_compat_test.go
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@ -1,7 +1,7 @@
// This file implements a data-driven test runner for SSH compatibility tests.
// It loads HuJSON golden files from testdata/ssh_results/ssh-*.hujson, captured
// from Tailscale SaaS by tscap, and compares headscale's SSH policy compilation
// against the captured SSH rules.
// from a Tailscale-hosted control plane, and compares headscale's SSH policy
// compilation against the captured SSH rules.
//
// Each file is a testcapture.Capture containing:
// - The full policy that was POSTed to Tailscale SaaS (we use tf.Input.FullPolicy
@ -33,8 +33,8 @@ import (
// setupSSHDataCompatUsers returns the 3 test users for SSH data-driven
// compatibility tests. Users get norse-god names; nodes get original-151
// pokémon names — matching the anonymized identifiers tscap writes into
// the capture files (see github.com/kradalby/tscap/anonymize).
// pokémon names — matching the anonymized identifiers the capture
// tool writes into the capture files.
//
// odin and freya live on @example.com; thor lives on @example.org so
// that "localpart:*@example.com" resolves to exactly two users
@ -210,12 +210,12 @@ func TestSSHDataCompat(t *testing.T) {
}
// Build nodes per-scenario from this file's topology.
// tscap uses clean-slate mode, so each scenario has
// the capture tool uses clean-slate mode, so each scenario has
// different node IPs.
nodes := buildGrantsNodesFromCapture(users, tf)
// Use the captured full policy as is. Anonymization in
// tscap already rewrites SaaS emails to @example.com.
// captures already rewrite SaaS emails to @example.com.
policyJSON := tf.Input.FullPolicy
pol, err := unmarshalPolicy([]byte(policyJSON))