headscale/hscontrol
Kristoffer Dalby 3d5c0af4e7 state: preserve previous primary when all HA advertisers unhealthy
electPrimaryRoutes' all-unhealthy fallback picked candidates[0]
(lowest NodeID) regardless of who was prev. Under cable-pull
semantics IsOnline lags reality (long-poll TCP half-open), so
both routers stay in candidates and both go Unhealthy via the
prober — the fallback then churned primary to a node that was
itself unreachable.

Prefer prev when still in candidates; fall through to
candidates[0] only when prev is gone. Anti-blackhole holds.

Update the property test reference model and split the unit
test into existence (KeepsAPrimary) and identity
(PreservesPrevious) cases.

Fixes #3203
2026-04-29 18:08:39 +01:00
..
assets assets: fix logo alignment and error icon centering 2026-04-13 17:23:47 +01:00
capver capver: regenerate for tailscale v1.96 2026-04-08 13:00:22 +01:00
db all: rephrase prose to fit codebase voice 2026-04-29 16:22:19 +01:00
derp all: fix golangci-lint issues (#3064) 2026-02-06 21:45:32 +01:00
dns Fix typo in comment about fsnotify behavior 2026-02-27 15:23:06 +01:00
mapper state: switch consumers to NodeStore primary routes 2026-04-29 18:08:39 +01:00
policy all: rephrase prose to fit codebase voice 2026-04-29 16:22:19 +01:00
servertest servertest, integration: cover HA both-offline recovery 2026-04-29 18:08:39 +01:00
state state: preserve previous primary when all HA advertisers unhealthy 2026-04-29 18:08:39 +01:00
templates all: rephrase prose to fit codebase voice 2026-04-29 16:22:19 +01:00
types types: move DebugRoutes from routes to types 2026-04-29 18:08:39 +01:00
util hscontrol: route hostname handling through dnsname and NodeStore 2026-04-18 15:12:21 +01:00
app.go app: add security headers middleware 2026-04-17 16:31:49 +01:00
app_test.go app: add security headers middleware 2026-04-17 16:31:49 +01:00
auth.go hscontrol: route hostname handling through dnsname and NodeStore 2026-04-18 15:12:21 +01:00
auth_tags_test.go state: note tagged-path coverage and self-healing behaviour for #3199 2026-04-29 13:06:38 +01:00
auth_test.go hscontrol: route hostname handling through dnsname and NodeStore 2026-04-18 15:12:21 +01:00
debug.go debug: explain URLIsNoise choice in ping callback 2026-04-17 16:31:49 +01:00
grpcv1.go state: replace zcache with bounded LRU for auth cache 2026-04-10 14:09:57 +01:00
grpcv1_test.go all: rephrase prose to fit codebase voice 2026-04-29 16:22:19 +01:00
handlers.go oidc: render HTML error pages for browser-facing failures 2026-04-13 17:23:47 +01:00
handlers_test.go oidc: render HTML error pages for browser-facing failures 2026-04-13 17:23:47 +01:00
metrics.go all: fix golangci-lint issues (#3064) 2026-02-06 21:45:32 +01:00
noise.go noise: reject non-HEAD on PingResponseHandler 2026-04-17 16:31:49 +01:00
noise_test.go policy/v2: align SSH check action with SaaS wire format 2026-04-17 16:31:49 +01:00
oidc.go oidc: render HTML error pages for browser-facing failures 2026-04-13 17:23:47 +01:00
oidc_confirm_test.go oidc: add confirmation page for node registration 2026-04-10 14:09:57 +01:00
oidc_template_test.go oidc: render HTML error pages for browser-facing failures 2026-04-13 17:23:47 +01:00
oidc_test.go oidc: make email verification configurable 2025-12-18 11:42:32 +00:00
platform_config.go all: fix golangci-lint issues (#3064) 2026-02-06 21:45:32 +01:00
poll.go types: add node.expiry config, deprecate oidc.expiry 2026-04-08 13:00:22 +01:00
poll_test.go poll: fix poll test linter violations 2026-03-12 01:27:34 -07:00
tailsql.go all: fix golangci-lint issues (#3064) 2026-02-06 21:45:32 +01:00
templates_consistency_test.go Update links to Tailscale documentation 2026-04-18 09:33:41 +02:00