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headscale/hscontrol
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Kristoffer Dalby fb8eecae25 state: defer HA failover when probe target reconnected mid-cycle 
The HA prober dispatches a PingRequest, waits ProbeTimeout (5s), and
marks the node unhealthy if no callback arrives. A node that bounced
its poll session between probe cycles satisfies two conditions that
conspire to fail TestHASubnetRouterFailover: a probe queued against
the previous session is silently dropped when the worker writes to
the closed connection (timeout always fires), and a probe sent
immediately after reconnect lands while wgengine is still rebuilding
magicsock state from the new netmap. Either path installs a spurious
unhealthy bit, which sends the preserved-primary anti-flap the wrong
way.

Record the session observed at dispatch time and drop the timeout
path if the node reconnected since. Require the session to survive
a full probe cycle before a timeout can drive a failover.
2026-05-18 17:18:08 +02:00
..
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 db: remove unused SetApprovedRoutes and SetTags helpers 2026-05-15 11:21:58 +02:00
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 mapper, app: ship MagicDNS Routes as empty slices, not nil 2026-05-18 17:18:08 +02:00
policy policy/v2: add SaaS goldens for via-grant prefix containment 2026-05-18 14:02:00 +02:00
servertest state: defer HA failover when probe target reconnected mid-cycle 2026-05-18 17:18:08 +02:00
state state: defer HA failover when probe target reconnected mid-cycle 2026-05-18 17:18:08 +02:00
templates all: rephrase prose to fit codebase voice 2026-04-29 16:22:19 +01:00
types hscontrol: gate proxy header trust on trusted_proxies 2026-05-18 17:17:55 +02:00
util hscontrol: route hostname handling through dnsname and NodeStore 2026-04-18 15:12:21 +01:00
app.go mapper, app: ship MagicDNS Routes as empty slices, not nil 2026-05-18 17:18:08 +02:00
app_test.go app: add security headers middleware 2026-04-17 16:31:49 +01:00
auth.go hscontrol: preserve nil expiry on tailscaled restart 2026-05-13 17:06:16 +02:00
auth_tags_test.go hscontrol: preserve nil expiry on tailscaled restart 2026-05-13 17:06:16 +02:00
auth_test.go state: avoid nil deref in registration handlers when old user is missing 2026-05-06 07:23:02 +01:00
debug.go debug: explain URLIsNoise choice in ping callback 2026-04-17 16:31:49 +01:00
grpcv1.go policy/v2: evaluate the tests block on user-initiated writes 2026-05-12 11:54:54 +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 hscontrol: gate proxy header trust on trusted_proxies 2026-05-18 17:17:55 +02:00
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
realip.go hscontrol: gate proxy header trust on trusted_proxies 2026-05-18 17:17:55 +02:00
realip_test.go hscontrol: gate proxy header trust on trusted_proxies 2026-05-18 17:17:55 +02:00
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