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Andrew Dunham 5708fc0639 wgengine/router: print Docker warning when stateful filtering is enabled 
When Docker is detected on the host and stateful filtering is enabled,
Docker containers may be unable to reach Tailscale nodes (depending on
the network settings of a container). Detect Docker when stateful
filtering is enabled and print a health warning to aid users in noticing
this issue.

We avoid printing the warning if the current node isn't advertising any
subnet routes and isn't an exit node, since without one of those being
true, the node wouldn't have the correct AllowedIPs in WireGuard to
allow a Docker container to connect to another Tailscale node anyway.

Updates #12070

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Idef538695f4d101b0ef6f3fb398c0eaafc3ae281
 		2024-05-09 12:26:11 -06:00
.bencher bencher: add config to suppress failures on benchmark regressions. 2021-10-01 16:16:02 -07:00
.github scripts/installer.sh: remove unnecessary escaping in grep (#11950) 2024-05-01 11:09:10 -06:00
appc appc: setting AdvertiseRoutes explicitly discards app connector routes 2024-04-29 11:40:04 -07:00
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 web: use EditPrefs instead of passing UpdatePrefs to starting (#12040) 2024-05-07 13:25:20 -07:00
clientupdate clientupdate: exec systemctl instead of using dbus to restart (#11923) 2024-04-29 13:16:40 -06:00
cmd cmd/tailscale: add missing set flags for linux 2024-05-09 09:02:23 -07:00
control cmd/tailscale,controlclient,ipnlocal: fix 'up', deflake tests more 2024-05-07 22:34:45 -07:00
derp derp/derphttp: fix netcheck HTTPS probes 2024-05-03 08:24:24 -07:00
disco disco: correct noun for nacl box type in disco docs 2023-12-14 16:41:53 -08:00
docs docs/windows/policy: add missing key expiration warning interval 2024-04-18 10:49:14 -04:00
doctor net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon 2024-04-28 07:34:52 -07:00
drive drive: actually cache results on statcache 2024-05-03 16:07:52 -05:00
envknob envknob: ensure f is not nil before using it 2024-03-15 12:46:41 -04:00
health health, ipn/ipnlocal: move more health warning code into health.Tracker 2024-05-01 15:03:21 -07:00
hostinfo hostinfo: use Distro field for distinguishing Windows Server builds 2024-04-18 13:48:50 -06:00
internal/tooldeps various: add golangci-lint, fix issues (#7905) 2023-04-17 18:38:24 -04:00
ipn ipn/ipnlocal: fix another read of keyExpired outside mutex 2024-05-08 19:00:30 +01:00
jsondb all: update copyright and license headers 2023-01-27 15:36:29 -08:00
k8s-operator cmd/k8s-operator/deploy,k8s-operator: document that metrics are unstable (#11979) 2024-05-03 14:02:10 +01:00
kube cmd/containerboot,kube,ipn/store/kubestore: allow interactive login on kube, check Secret create perms, allow empty state Secret (#11326) 2024-04-29 17:03:48 +01:00
licenses licenses: update license notices 2024-05-06 09:47:13 -07:00
log net/netns, net/dns/resolver, etc: make netmon required in most places 2024-04-27 12:17:45 -07:00
logpolicy net/netns, net/dns/resolver, etc: make netmon required in most places 2024-04-27 12:17:45 -07:00
logtail net/netns, net/dns/resolver, etc: make netmon required in most places 2024-04-27 12:17:45 -07:00
metrics all: use Go 1.22 range-over-int 2024-04-16 15:32:38 -07:00
net net/netcheck: do not add derps if IPv4/IPv6 is set to "none" 2024-05-07 15:57:28 -07:00
packages/deb go.mod: upgrade nfpm to v2 (#8786) 2023-08-03 13:00:45 -07:00
paths all: use Go 1.22 range-over-int 2024-04-16 15:32:38 -07:00
portlist all: use Go 1.22 range-over-int 2024-04-16 15:32:38 -07:00
posture cmd/tailscaled, net/tstun: build for aix/ppc64 2024-04-13 11:03:22 -07:00
prober net/netns, net/dns/resolver, etc: make netmon required in most places 2024-04-27 12:17:45 -07:00
proxymap wgengine, proxymap: split out port mapping from Engine to new type 2023-09-17 20:06:43 +01:00
release release/dist/qnap: omit .qpkg.codesigning files 2024-04-25 11:20:40 -04:00
safesocket all: use Go 1.22 range-over-int 2024-04-16 15:32:38 -07:00
safeweb safeweb: handle mux pattern collisions more generally (#11801) 2024-04-25 16:08:30 -07:00
scripts scripts/installer.sh: remove unnecessary escaping in grep (#11950) 2024-05-01 11:09:10 -06:00
smallzstd all: use Go 1.22 range-over-int 2024-04-16 15:32:38 -07:00
ssh/tailssh ssh/tailssh: plumb health.Tracker in test 2024-05-03 08:24:24 -07:00
syncs syncs: fix AtomicValue for interface kinds (#11943) 2024-04-30 14:27:58 -07:00
tailcfg tailcfg: bump capver for using NodeAttrUserDialUseRoutes for DNS 2024-05-06 15:52:50 -07:00
taildrop all: use new AppendEncode methods available in Go 1.22 (#11079) 2024-02-08 17:55:03 -08:00
tempfork cmd/tailscale: add shell tab-completion 2024-04-17 18:54:10 +01:00
tka all: use Go 1.22 range-over-int 2024-04-16 15:32:38 -07:00
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 health, all: remove health.Global, finish plumbing health.Tracker 2024-04-26 12:03:11 -07:00
tsnet health, all: remove health.Global, finish plumbing health.Tracker 2024-04-26 12:03:11 -07:00
tstest cmd/tailscale,controlclient,ipnlocal: fix 'up', deflake tests more 2024-05-07 22:34:45 -07:00
tstime all: use Go 1.22 range-over-int 2024-04-16 15:32:38 -07:00
tsweb tsweb: remove redundant bumpStartIfNeeded func 2024-05-05 18:04:58 -07:00
types types/views: add AppendStrings util func 2024-05-03 19:19:33 -07:00
util util/linuxfw: fix table name in DelStatefulRule 2024-05-09 11:44:16 -06:00
version all: use Go 1.22 range-over-int 2024-04-16 15:32:38 -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: print Docker warning when stateful filtering is enabled 2024-05-09 12:26:11 -06:00
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 ssh/tailssh: add integration test 2024-05-01 11:19:36 -05:00
.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 ssh/tailssh: add integration test 2024-05-01 11:19:36 -05:00
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 v1.67.0 (#12063) 2024-05-08 14:00:17 -07:00
api.md api.md: remove extraneous commas in json examples 2024-05-08 16:36:52 -04:00
build_dist.sh cmd/tailscale: add shell tab-completion 2024-04-17 18:54:10 +01:00
build_docker.sh cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11919) 2024-04-30 20:18:23 +01:00
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 2024-04-13 11:12:06 -07:00
go.mod cmd/{k8s-operator,k8s-nameserver},k8s-operator: update nameserver config with records for ingress/egress proxies (#11019) 2024-05-02 17:29:46 +01:00
go.mod.sri go.mod.sri: update SRI hash for go.mod changes 2024-04-13 11:12:06 -07:00
go.sum net/tstun: implement env var for disabling UDP GRO on Linux (#11924) 2024-04-30 09:14:02 -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: update to Go 1.22.3 2024-05-07 13:32:51 -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 2024-04-13 11:12:06 -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:

Legal

WireGuard is a registered trademark of Jason A. Donenfeld.