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Andrew Dunham b8f89c93ac control/controlclient: try reconnecting to last successful addr
If we lose our connection to the control server (e.g. due to a restart,
or a network blip, etc), try reconnecting to the same address first
before going through the whole control dialplan and/or DNS flow.

This ensures that we're a bit "sticky", which makes load balancing
easier by improving the chances that this client will hit a server with
a warm cache. It also reduces the thundering herd of requests that hit
other servers after we restart a single one.

Updates #TODO

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I6c3ef0b088468a8888c05cf8e3813056118ec835
2024-04-04 16:35:52 -04:00
.bencher bencher: add config to suppress failures on benchmark regressions. 2021-10-01 16:16:02 -07:00
.github .github/workflows: remove go-licenses action 2024-03-29 19:38:13 -07:00
appc appc: optimize dns response observation for large route tables 2024-02-07 14:11:41 -08:00
atomicfile various: add golangci-lint, fix issues (#7905) 2023-04-17 18:38:24 -04:00
chirp all: update copyright and license headers 2023-01-27 15:36:29 -08:00
client tailscale: update tailfs functions and vars to use drive naming (#11597) 2024-04-03 10:09:58 -07:00
clientupdate clientupdate, net/dns: fix some "tailsacle" typos 2024-04-03 21:08:25 -07:00
cmd tailscale: update tailfs functions and vars to use drive naming (#11597) 2024-04-03 10:09:58 -07:00
control control/controlclient: try reconnecting to last successful addr 2024-04-04 16:35:52 -04:00
derp derp/derphttp: make CONNECT Host match request-target's authority-form 2024-03-27 11:36:28 -07:00
disco disco: correct noun for nacl box type in disco docs 2023-12-14 16:41:53 -08:00
docs docs/k8s: don't run subnet router in userspace mode (#11363) 2024-03-07 13:56:11 +00:00
doctor doctor/ethtool, ipn/ipnlocal: add ethtool bugreport check 2024-02-15 10:17:05 -05:00
drive tailscale: update tailfs functions and vars to use drive naming (#11597) 2024-04-03 10:09:58 -07:00
envknob envknob: ensure f is not nil before using it 2024-03-15 12:46:41 -04:00
health health: warn about reverse path filtering and exit nodes 2024-02-27 00:43:01 +00:00
hostinfo hostinfo: cache device model to speed up init 2024-04-02 09:09:43 -07:00
internal/tooldeps various: add golangci-lint, fix issues (#7905) 2023-04-17 18:38:24 -04:00
ipn tailscale: update tailfs functions and vars to use drive naming (#11597) 2024-04-03 10:09:58 -07:00
jsondb all: update copyright and license headers 2023-01-27 15:36:29 -08:00
k8s-operator cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11017) 2024-03-27 20:18:17 +00:00
kube cmd/k8s-operator,ipn/store/kubestore: patch secrets instead of updating 2023-08-29 13:24:05 -07:00
licenses licenses: update license notices 2024-03-29 16:32:25 -07:00
log all: use zstdframe where sensible (#11491) 2024-03-21 12:20:38 -07:00
logpolicy all: use zstdframe where sensible (#11491) 2024-03-21 12:20:38 -07:00
logtail logtail: delete unused code from old way to configure zstd 2024-04-01 20:43:06 -07:00
metrics metrics, tsweb/varz: add multi-label map metrics 2024-03-26 09:01:04 -07:00
net clientupdate, net/dns: fix some "tailsacle" typos 2024-04-03 21:08:25 -07:00
packages/deb go.mod: upgrade nfpm to v2 (#8786) 2023-08-03 13:00:45 -07:00
paths safesocket, paths: add Plan 9 support 2023-09-07 08:48:21 -07:00
portlist all: cleanup unused code, part 2 (#10670) 2023-12-21 17:40:03 -08:00
posture ci: run 'go vet' in golangci-lint; fix errors in tests 2023-12-07 15:08:28 -05:00
prober prober: support creating multiple probes in ForEachAddr 2024-04-04 13:04:16 -04:00
proxymap wgengine, proxymap: split out port mapping from Engine to new type 2023-09-17 20:06:43 +01:00
release version/mkversion: enforce synology versions within int32 range 2024-03-08 12:47:59 -05:00
safesocket version,cli,safesocket: detect non-sandboxed macOS GUI (#11369) 2024-03-14 14:28:06 -07:00
safeweb safeweb: move http.Serve for HTTP redirects into lib (#11592) 2024-04-02 12:04:24 -07:00
scripts scripts/installer.sh: auto-start tailscale on Alpine (#11214) 2024-02-27 09:17:12 -05:00
smallzstd all: update copyright and license headers 2023-01-27 15:36:29 -08:00
ssh/tailssh all: use reflect.TypeFor now available in Go 1.22 (#11078) 2024-02-08 17:34:22 -08:00
syncs syncs: add Swap method 2024-03-19 18:39:44 -04:00
tailcfg tailscale: update tailfs functions and vars to use drive naming (#11597) 2024-04-03 10:09:58 -07:00
taildrop all: use new AppendEncode methods available in Go 1.22 (#11079) 2024-02-08 17:55:03 -08:00
tempfork net/tstun: use gaissmai/bart instead of tempfork/device 2024-03-25 12:31:14 -05:00
tka all: use new AppendEncode methods available in Go 1.22 (#11079) 2024-02-08 17:55:03 -08:00
tool tool/gocross: add android autoflags (#11465) 2024-03-19 16:08:20 -07:00
tsconst all: update copyright and license headers 2023-01-27 15:36:29 -08:00
tsd tailscale: update tailfs functions and vars to use drive naming (#11597) 2024-04-03 10:09:58 -07:00
tsnet tailscale: update tailfs functions and vars to use drive naming (#11597) 2024-04-03 10:09:58 -07:00
tstest control/controlclient: delete old naclbox code, require ts2021 Noise 2024-04-03 09:17:27 -07:00
tstime tstime/rate: implement Value.{Marshal,Unmarshal}JSON (#8481) 2024-01-16 13:48:34 -08:00
tsweb tsweb: update doc on BucketedStatsOptions.Finish to match behavior 2024-04-02 17:22:59 -07:00
types ipn/ipnlocal, types/netmap: replace hasCapability with set lookup on NetworkMap 2024-03-22 15:30:46 -07:00
util util/zstdframe: support specifying a MaxWindowSize (#11595) 2024-04-04 10:46:20 -07:00
version version/prop: remove IsMacAppSandboxEnabled (#11461) 2024-03-19 14:50:34 -07:00
wf go.mod, all: move away from inet.af domain seized by Taliban 2024-02-13 19:21:09 -08:00
wgengine wgengine/router: provide explicit hook to signal Android when VPN needs to be reconfigured 2024-04-04 12:56:49 -05:00
words words: add a list of things you should yahoo! 2024-02-07 14:47:20 -08:00
.gitattributes .: add .gitattributes entry to use Go hunk-header driver 2021-12-03 17:56:02 -08:00
.gitignore client/web: always use new web client; remove old client 2023-08-28 11:11:16 -07:00
.golangci.yml ci: run 'go vet' in golangci-lint; fix errors in tests 2023-12-07 15:08:28 -05:00
ALPINE.txt ALPINE.txt,Dockerfile{.base},build_docker.sh: bump alpine (#10543) 2023-12-11 07:03:18 +00:00
AUTHORS Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
CODEOWNERS CODEOWNERS: add the start of an owners file 2023-08-16 15:57:29 -07:00
CODE_OF_CONDUCT.md Add a code of conduct. 2020-02-10 22:16:30 -08:00
Dockerfile Dockerfile: use Go 1.22 2024-02-07 18:10:15 -08:00
Dockerfile.base ALPINE.txt,Dockerfile{.base},build_docker.sh: bump alpine (#10543) 2023-12-11 07:03:18 +00:00
LICENSE all: update tools that manage copyright headers 2023-01-27 15:36:29 -08:00
Makefile cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11017) 2024-03-27 20:18:17 +00:00
PATENTS Move Linux client & common packages into a public repo. 2020-02-09 09:32:57 -08:00
README.md go.mod, README.md: use Go 1.22 2024-02-07 18:10:15 -08:00
SECURITY.md Add a SECURITY.md for vulnerability reports. 2020-02-11 10:26:41 -08:00
VERSION.txt VERSION.txt: this is v1.63.0 2024-03-13 14:51:52 +00:00
api.md api.md: add missing backtick to GET searchpaths doc (#11459) 2024-03-19 11:31:03 -06:00
build_dist.sh client/web: switch to using prebuilt web client assets 2023-09-19 10:09:54 -07:00
build_docker.sh cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11017) 2024-03-27 20:18:17 +00:00
flake.lock flake.nix: build tailscale with go 1.22 2024-02-11 20:43:40 -08:00
flake.nix go.mod.sri: update SRI hash for go.mod changes 2024-03-26 08:37:52 -07:00
go.mod go.mod: bump github.com/gaissmai/bart 2024-03-26 16:06:52 -07:00
go.mod.sri go.mod.sri: update SRI hash for go.mod changes 2024-03-26 08:37:52 -07:00
go.sum go.mod: bump github.com/gaissmai/bart 2024-03-26 16:06:52 -07:00
go.toolchain.branch go.toolchain.rev: bump to Go 1.22.0 (#11055) 2024-02-07 14:57:57 -07:00
go.toolchain.rev go.toolchain.rev: bump to Go 1.22.2 2024-04-03 11:11:07 -07:00
gomod_test.go go.mod: add test that replace directives aren't added in oss 2023-09-29 12:31:52 -07:00
header.txt cmd/k8s-operator: operator can create subnetrouter (#9505) 2023-12-14 13:51:59 +00:00
pull-toolchain.sh pull-toolchain.sh: don't run update-flake.sh 2023-02-09 15:04:01 -08:00
shell.nix go.mod.sri: update SRI hash for go.mod changes 2024-03-26 08:37:52 -07:00
staticcheck.conf all: cleanup unused code, part 2 (#10670) 2023-12-21 17:40:03 -08:00
update-flake.sh Code Improvements (#11311) 2024-03-08 15:24:36 -08:00
version-embed.go version: return correct Meta.MajorMinorPatch in non-dev builds 2023-02-10 13:00:44 -08:00
version_test.go go.mod,wgengine/netstack: bump gvisor 2024-01-19 18:23:53 -08:00

README.md

Tailscale

https://tailscale.com

Private WireGuard® networks made easy

Overview

This repository contains the majority of Tailscale's open source code. Notably, it includes the tailscaled daemon and the tailscale CLI tool. The tailscaled daemon runs on Linux, Windows, macOS, and to varying degrees on FreeBSD and OpenBSD. The Tailscale iOS and Android apps use this repo's code, but this repo doesn't contain the mobile GUI code.

Other Tailscale repos of note:

For background on which parts of Tailscale are open source and why, see https://tailscale.com/opensource/.

Using

We serve packages for a variety of distros and platforms at https://pkgs.tailscale.com.

Other clients

The macOS, iOS, and Windows clients use the code in this repository but additionally include small GUI wrappers. The GUI wrappers on non-open source platforms are themselves not open source.

Building

We always require the latest Go release, currently Go 1.22. (While we build releases with our Go fork, its use is not required.)

go install tailscale.com/cmd/tailscale{,d}

If you're packaging Tailscale for distribution, use build_dist.sh instead, to burn commit IDs and version info into the binaries:

./build_dist.sh tailscale.com/cmd/tailscale
./build_dist.sh tailscale.com/cmd/tailscaled

If your distro has conventions that preclude the use of build_dist.sh, please do the equivalent of what it does in your distro's way, so that bug reports contain useful version information.

Bugs

Please file any issues about this code or the hosted service on the issue tracker.

Contributing

PRs welcome! But please file bugs. Commit messages should reference bugs.

We require Developer Certificate of Origin Signed-off-by lines in commits.

See git log for our commit message style. It's basically the same as Go's style.

About Us

Tailscale is primarily developed by the people at https://github.com/orgs/tailscale/people. For other contributors, see:

WireGuard is a registered trademark of Jason A. Donenfeld.