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tailscale/ipn
Adrian Dewhurst 0219317372 ipn/ipnlocal: improve sticky last suggestion
The last suggested exit node needs to be incorporated in the decision
making process when a new suggestion is requested, but currently it is
not quite right: it'll be used if the suggestion code has an error or a
netmap is unavailable, but it won't be used otherwise.

Instead, this makes the last suggestion into a tiebreaker when making a
random selection between equally-good options. If the last suggestion
does not make it to the final selection pool, then a different
suggestion will be made.

Since LocalBackend.SuggestExitNode is back to being a thin shim that
sets up the parameters to suggestExitNode, it no longer needs a test.
Its test was unable to be comprehensive anyway as the code being tested
contains an uncontrolled random number generator.

Updates tailscale/corp#19681

Change-Id: I94ecc9a0d1b622de3df4ef90523f1d3e67b4bfba
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
6 months ago
..
conffile cmd/tailscaled, ipn/conffile: support ec2 user-data config file 6 months ago
ipnauth go.mod, all: move away from inet.af domain seized by Taliban 10 months ago
ipnlocal ipn/ipnlocal: improve sticky last suggestion 6 months ago
ipnserver ipn/ipnserver: close a small race in ipnserver, ~simplify code 7 months ago
ipnstate cmd/tailscale/cli: print node signature in `tailscale lock status` 6 months ago
localapi tsnet,wgengine/netstack: add ListenPacket and tests 6 months ago
policy ipn,tailconfig: clean up unreleased and removed app connector service 1 year ago
store ipn/store/kubestore, cmd/containerboot: allow overriding client api server URL via ENV (#12115) 6 months ago
backend.go ipn: remove unused Options.LegacyMigrationPrefs 8 months ago
conf.go cmd/k8s-operator,cmd/containerboot,ipn,k8s-operator: turn off stateful filter for egress proxies. (#12075) 7 months ago
doc.go all: update copyright and license headers 2 years ago
ipn_clone.go ipn,wgengine: remove vestigial Prefs.AllowSingleHosts 7 months ago
ipn_test.go all: do not depend on the testing package 6 months ago
ipn_view.go ipn,wgengine: remove vestigial Prefs.AllowSingleHosts 7 months ago
prefs.go various: disable stateful filtering by default (#12197) 6 months ago
prefs_test.go ipn,wgengine: remove vestigial Prefs.AllowSingleHosts 7 months ago
serve.go serve.go, tsnet.go: Fix "in in" typo (#12279) 6 months ago
serve_test.go {ipn/serve,cmd/tailscale/cli}: move some shared funcs to ipn 9 months ago
store.go ipn: add comment about thread-safety to StateStore 9 months ago
store_test.go ipn: avoid useless no-op WriteState calls 1 year ago