tailscale

Commit Graph

Author	SHA1	Message	Date
Tom Proctor	cba2e76568	cmd/containerboot: simplify k8s setup logic (#13627 ) Rearrange conditionals to reduce indentation and make it a bit easier to read the logic. Also makes some error message updates for better consistency with the recent decision around capitalising resource names and the upcoming addition of config secrets. Updates #cleanup Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>	1 month ago
Irbe Krumina	7f016baa87	cmd/k8s-operator,k8s-operator: create ConfigMap for egress services + small fixes for egress services (#13715 ) cmd/k8s-operator, k8s-operator: create ConfigMap for egress services + small reconciler fixes Updates tailscale/tailscale#13406 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	2 months ago
Erisa A	c588c36233	types/key: use tlpub: in error message (#13707 ) Fixes tailscale/corp#19442 Signed-off-by: Erisa A <erisa@tailscale.com>	2 months ago
Tom Proctor	e48cddfbb3	cmd/{containerboot,k8s-operator},k8s-operator,kube: add ProxyGroup controller (#13684 ) Implements the controller for the new ProxyGroup CRD, designed for running proxies in a high availability configuration. Each proxy gets its own config and state Secret, and its own tailscale node ID. We are currently mounting all of the config secrets into the container, but will stop mounting them and instead read them directly from the kube API once #13578 is implemented. Updates #13406 Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>	2 months ago
Erisa A	f30d85310c	cmd/tailscale/cli: don't print disablement secrets if init fails (#13673 ) * cmd/tailscale/cli: don't print disablement secrets if init fails Fixes tailscale/corp#11355 Signed-off-by: Erisa A <erisa@tailscale.com> * cmd/tailscale/cli: changes from code review Signed-off-by: Erisa A <erisa@tailscale.com> * cmd/tailscale/cli: small grammar change Signed-off-by: Erisa A <erisa@tailscale.com> --------- Signed-off-by: Erisa A <erisa@tailscale.com>	2 months ago
Irbe Krumina	e8bb5d1be5	cmd/{k8s-operator,containerboot},k8s-operator,kube: reconcile ExternalName Services for ProxyGroup (#13635 ) Adds a new reconciler that reconciles ExternalName Services that define a tailnet target that should be exposed to cluster workloads on a ProxyGroup's proxies. The reconciler ensures that for each such service, the config mounted to the proxies is updated with the tailnet target definition and that and EndpointSlice and ClusterIP Service are created for the service. Adds a new reconciler that ensures that as proxy Pods become ready to route traffic to a tailnet target, the EndpointSlice for the target is updated with the Pods' endpoints. Updates tailscale/tailscale#13406 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	2 months ago
Irbe Krumina	9bd158cc09	cmd/containerboot,util/linuxfw: create a SNAT rule for dst/src only once, clean up if needed (#13658 ) The AddSNATRuleForDst rule was adding a new rule each time it was called including: - if a rule already existed - if a rule matching the destination, but with different desired source already existed This was causing issues especially for the in-progress egress HA proxies work, where the rules are now refreshed more frequently, so more redundant rules were being created. This change: - only creates the rule if it doesn't already exist - if a rule for the same dst, but different source is found, delete it - also ensures that egress proxies refresh firewall rules if the node's tailnet IP changes Updates tailscale/tailscale#13406 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	2 months ago
Brad Fitzpatrick	d3f302d8e2	cmd/tailscale/cli: make 'tailscale debug ts2021' try twice In prep for a future port 80 MITM fix, make the 'debug ts2021' command retry once after a failure to give it a chance to pick a new strategy. Updates #13597 Change-Id: Icb7bad60cbf0dbec78097df4a00e9795757bc8e4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 months ago
Maisem Ali	fb0f8fc0ae	cmd/tsidp: add --dir flag To better control where the tsnet state is being stored. Updates #10263 Signed-off-by: Maisem Ali <maisem@tailscale.com>	2 months ago
Irbe Krumina	096b090caf	cmd/containerboot,kube,util/linuxfw: configure kube egress proxies to route to 1+ tailnet targets (#13531 ) * cmd/containerboot,kube,util/linuxfw: configure kube egress proxies to route to 1+ tailnet targets This commit is first part of the work to allow running multiple replicas of the Kubernetes operator egress proxies per tailnet service + to allow exposing multiple tailnet services via each proxy replica. This expands the existing iptables/nftables-based proxy configuration mechanism. A proxy can now be configured to route to one or more tailnet targets via a (mounted) config file that, for each tailnet target, specifies: - the target's tailnet IP or FQDN - mappings of container ports to which cluster workloads will send traffic to tailnet target ports where the traffic should be forwarded. Example configfile contents: { "some-svc": {"tailnetTarget":{"fqdn":"foo.tailnetxyz.ts.net","ports"{"tcp:4006:80":{"protocol":"tcp","matchPort":4006,"targetPort":80},"tcp:4007:443":{"protocol":"tcp","matchPort":4007,"targetPort":443}}}} } A proxy that is configured with this config file will configure firewall rules to route cluster traffic to the tailnet targets. It will then watch the config file for updates as well as monitor relevant netmap updates and reconfigure firewall as needed. This adds a bunch of new iptables/nftables functionality to make it easier to dynamically update the firewall rules without needing to restart the proxy Pod as well as to make it easier to debug/understand the rules: - for iptables, each portmapping is a DNAT rule with a comment pointing at the 'service',i.e: -A PREROUTING ! -i tailscale0 -p tcp -m tcp --dport 4006 -m comment --comment "some-svc:tcp:4006 -> tcp:80" -j DNAT --to-destination 100.64.1.18:80 Additionally there is a SNAT rule for each tailnet target, to mask the source address. - for nftables, a separate prerouting chain is created for each tailnet target and all the portmapping rules are placed in that chain. This makes it easier to look up rules and delete services when no longer needed. (nftables allows hooking a custom chain to a prerouting hook, so no extra work is needed to ensure that the rules in the service chains are evaluated). The next steps will be to get the Kubernetes Operator to generate the configfile and ensure it is mounted to the relevant proxy nodes. Updates tailscale/tailscale#13406 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	2 months ago
Irbe Krumina	c62b0732d2	cmd/k8s-operator: remove auth key once proxy has logged in (#13612 ) The operator creates a non-reusable auth key for each of the cluster proxies that it creates and puts in the tailscaled configfile mounted to the proxies. The proxies are always tagged, and their state is persisted in a Kubernetes Secret, so their node keys are expected to never be regenerated, so that they don't need to re-auth. Some tailnet configurations however have seen issues where the auth keys being left in the tailscaled configfile cause the proxies to end up in unauthorized state after a restart at a later point in time. Currently, we have not found a way to reproduce this issue, however this commit removes the auth key from the config once the proxy can be assumed to have logged in. If an existing, logged-in proxy is upgraded to this version, its redundant auth key will be removed from the conffile. If an existing, logged-in proxy is downgraded from this version to a previous version, it will work as before without re-issuing key as the previous code did not enforce that a key must be present. Updates tailscale/tailscale#13451 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	2 months ago
Tom Proctor	cab2e6ea67	cmd/k8s-operator,k8s-operator: add ProxyGroup CRD (#13591 ) The ProxyGroup CRD specifies a set of N pods which will each be a tailnet device, and will have M different ingress or egress services mapped onto them. It is the mechanism for specifying how highly available proxies need to be. This commit only adds the definition, no controller loop, and so it is not currently functional. This commit also splits out TailnetDevice and RecorderTailnetDevice into separate structs because the URL field is specific to recorders, but we want a more generic struct for use in the ProxyGroup status field. Updates #13406 Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>	2 months ago
Kristoffer Dalby	0909431660	cmd/tailscale: use tsaddr helpers Updates #cleanup Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	2 months ago
Cameron Stokes	65c26357b1	cmd/k8s-operator, k8s-operator: fix outdated kb links (#13585 ) updates #13583 Signed-off-by: Cameron Stokes <cameron@tailscale.com>	2 months ago
Kristoffer Dalby	0e0e53d3b3	util/usermetrics: make usermetrics non-global this commit changes usermetrics to be non-global, this is a building block for correct metrics if a go process runs multiple tsnets or in tests. Updates #13420 Updates tailscale/corp#22075 Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	2 months ago
Andrea Gottardo	8a6f48b455	cli: add `tailscale dns query` (#13368 ) Updates tailscale/tailscale#13326 Adds a CLI subcommand to perform DNS queries using the internal DNS forwarder and observe its internals (namely, which upstream resolvers are being used). Signed-off-by: Andrea Gottardo <andrea@gottardo.me>	2 months ago
Tom Proctor	d0a56a8870	cmd/containerboot: split main.go (#13517 ) containerboot's main.go had grown to well over 1000 lines with lots of disparate bits of functionality. This commit is pure copy- paste to group related functionality outside of the main function into its own set of files. Everything is still in the main package to keep the diff incremental and reviewable. Updates #cleanup Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>	2 months ago
Fran Bull	8b962f23d1	cmd/natc: fix nil pointer Fixes #13495 Signed-off-by: Fran Bull <fran@tailscale.com>	2 months ago
Tom Proctor	98f4dd9857	cmd/k8s-operator,k8s-operator,kube: Add TSRecorder CRD + controller (#13299 ) cmd/k8s-operator,k8s-operator,kube: Add TSRecorder CRD + controller Deploys tsrecorder images to the operator's cluster. S3 storage is configured via environment variables from a k8s Secret. Currently only supports a single tsrecorder replica, but I've tried to take early steps towards supporting multiple replicas by e.g. having a separate secret for auth and state storage. Example CR: ```yaml apiVersion: tailscale.com/v1alpha1 kind: Recorder metadata: name: rec spec: enableUI: true ``` Updates #13298 Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>	2 months ago
Fran Bull	7d16af8d95	cmd/natc: fix nil pointer Fixes #13432 Signed-off-by: Fran Bull <fran@tailscale.com>	2 months ago
Jordan Whited	a228d77f86	cmd/stunstamp: add protocol context to timeout logs (#13422 ) We started out with a single protocol & port, now it's many. Updates #cleanup Signed-off-by: Jordan Whited <jordan@tailscale.com>	2 months ago
Irbe Krumina	209567e7a0	kube,cmd/{k8s-operator,containerboot},envknob,ipn/store/kubestore,*/depaware.txt: rename packages (#13418 ) Rename kube/{types,client,api} -> kube/{kubetypes,kubeclient,kubeapi} so that we don't need to rename the package on each import to convey that it's kubernetes specific. Updates#cleanup Signed-off-by: Irbe Krumina <irbe@tailscale.com>	2 months ago
Irbe Krumina	d6dfb7f242	kube,cmd/{k8s-operator,containerboot},envknob,ipn/store/kubestore,*/depaware.txt: split out kube types (#13417 ) Further split kube package into kube/{client,api,types}. This is so that consumers who only need constants/static types don't have to import the client and api bits. Updates#cleanup Signed-off-by: Irbe Krumina <irbe@tailscale.com>	2 months ago
Irbe Krumina	ecd64f6ed9	cmd/k8s-operator,kube: set app name for Kubernetes Operator proxies (#13410 ) Updates tailscale/corp#22920 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	3 months ago
Jordan Whited	95f0094310	cmd/stunstamp: cleanup timeout and interval constants (#13393 ) Updates #cleanup Signed-off-by: Jordan Whited <jordan@tailscale.com>	3 months ago
Andrew Lytvynov	e7a6e7930f	cmd/systray: handle reconnects to IPN bus (#13386 ) When tailscaled restarts and our watch connection goes down, we get stuck in an infinite loop printing `ipnbus error: EOF` (which ended up consuming all the disk space on my laptop via the log file). Instead, handle errors in `watchIPNBus` and reconnect after a short delay. Updates #1708 Signed-off-by: Andrew Lytvynov <awly@tailscale.com>	3 months ago
Brad Fitzpatrick	bcc47d91ca	cmd/tailscale/cli: use new Go 1.23 slices.Sorted And a grammatical nit. Updates #12912 Change-Id: I9feae53beb4d28dfe98b583373e2e0a43c801fc4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago
Andrea Gottardo	d060b3fa02	cli: implement `tailscale dns status` (#13353 ) Updates tailscale/tailscale#13326 This PR begins implementing a `tailscale dns` command group in the Tailscale CLI. It provides an initial implementation of `tailscale dns status` which dumps the state of the internal DNS forwarder. Two new endpoints were added in LocalAPI to support the CLI functionality: - `/netmap`: dumps a copy of the last received network map (because the CLI shouldn't have to listen to the ipn bus for a copy) - `/dns-osconfig`: dumps the OS DNS configuration (this will be very handy for the UI clients as well, as they currently do not display this information) My plan is to implement other subcommands mentioned in tailscale/tailscale#13326, such as `query`, in later PRs. Signed-off-by: Andrea Gottardo <andrea@gottardo.me>	3 months ago
Jordan Whited	1fc4268aea	cmd/stunstamp: increase probe jitter (#13362 ) We've added more probe targets recently which has resulted in more timeouts behind restrictive NATs in localized testing that don't like how many flows we are creating at once. Not so much an issue for datacenter or cloud-hosted deployments. Updates tailscale/corp#22114 Signed-off-by: Jordan Whited <jordan@tailscale.com>	3 months ago
Jordan Whited	1dd1798bfa	cmd/stunstamp: use measureFn more consistently in naming/signatures (#13360 ) Updates #cleanup Signed-off-by: Jordan Whited <jordan@tailscale.com>	3 months ago
Jordan Whited	6d6b1773ea	cmd/stunstamp: implement ICMP{v6} probing (#13354 ) This adds both userspace and kernel timestamping. Updates tailscale/corp#22114 Signed-off-by: Jordan Whited <jordan@tailscale.com>	3 months ago
Brad Fitzpatrick	e865a0e2b0	cmd/tailscale/cli: add 'debug go-buildinfo' subcommand To dump runtime/debug.BuildInfo. Updates #1866 Change-Id: I8810390858a03b7649f9b22ef3ab910d423388da Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago
Irbe Krumina	8e1c00f841	cmd/k8s-operator,k8s-operator/sessionrecording: ensure recording header contains terminal size for terminal sessions (#12965 ) * cmd/k8s-operator,k8s-operator/sessonrecording: ensure CastHeader contains terminal size For tsrecorder to be able to play session recordings, the recording's CastHeader must have '.Width' and '.Height' fields set to non-zero. Kubectl (or whoever is the client that initiates the 'kubectl exec' session recording) sends the terminal dimensions in a resize message that the API server proxy can intercept, however that races with the first server message that we need to record. This PR ensures we wait for the terminal dimensions to be processed from the first resize message before any other data is sent, so that for all sessions with terminal attached, the header of the session recording contains the terminal dimensions and the recording can be played by tsrecorder. Updates tailscale/tailscale#19821 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	3 months ago
Andrew Dunham	1c972bc7cb	wgengine/magicsock: actually use AF_PACKET socket for raw disco Previously, despite what the commit said, we were using a raw IP socket that was not an AF_PACKET socket, and thus was subject to the host firewall rules. Switch to using a real AF_PACKET socket to actually get the functionality we want. Updates #13140 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: If657daeeda9ab8d967e75a4f049c66e2bca54b78	3 months ago
Nick Khyl	961ee321e8	ipn/{ipnauth,ipnlocal,ipnserver,localapi}: start baby step toward moving access checks from the localapi.Handler to the LocalBackend Currently, we use PermitRead/PermitWrite/PermitCert permission flags to determine which operations are allowed for a LocalAPI client. These checks are performed when localapi.Handler handles a request. Additionally, certain operations (e.g., changing the serve config) requires the connected user to be a local admin. This approach is inherently racey and is subject to TOCTOU issues. We consider it to be more critical on Windows environments, which are inherently multi-user, and therefore we prevent more than one OS user from connecting and utilizing the LocalBackend at the same time. However, the same type of issues is also applicable to other platforms when switching between profiles that have different OperatorUser values in ipn.Prefs. We'd like to allow more than one Windows user to connect, but limit what they can see and do based on their access rights on the device (e.g., an local admin or not) and to the currently active LoginProfile (e.g., owner/operator or not), while preventing TOCTOU issues on Windows and other platforms. Therefore, we'd like to pass an actor from the LocalAPI to the LocalBackend to represent the user performing the operation. The LocalBackend, or the profileManager down the line, will then check the actor's access rights to perform a given operation on the device and against the current (and/or the target) profile. This PR does not change the current permission model in any way, but it introduces the concept of an actor and includes some preparatory work to pass it around. Temporarily, the ipnauth.Actor interface has methods like IsLocalSystem and IsLocalAdmin, which are only relevant to the current permission model. It also lacks methods that will actually be used in the new model. We'll be adding these gradually in the next PRs and removing the deprecated methods and the Permit* flags at the end of the transition. Updates tailscale/corp#18342 Signed-off-by: Nick Khyl <nickk@tailscale.com>	3 months ago
Kristoffer Dalby	a2c42d3cd4	usermetric: add initial user-facing metrics This commit adds a new usermetric package and wires up metrics across the tailscale client. Updates tailscale/corp#22075 Co-authored-by: Anton Tolchanov <anton@tailscale.com> Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	3 months ago
Kristoffer Dalby	06c31f4e91	tsweb/varz: remove pprof Updates tailscale/corp#22075 Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>	3 months ago
Brad Fitzpatrick	2636a83d0e	cmd/tta: pull out test driver dialing into a type, fix bugs There were a few places it could get wedged (notably the dial without a timeout). And add a knob for verbose debug logs. And keep two idle connections always. Updates #13038 Change-Id: I952ad182d7111481d97a83c12aa2ff4bfdc55fe8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago
Brad Fitzpatrick	b78df4d48a	tstest/natlab/vnet: add start of IPv6 support Updates #13038 Change-Id: Ic3d095f167daf6c7129463e881b18f2e0d5693f5 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago
Brad Fitzpatrick	475ab1fb67	cmd/vnet: omit log spam when backend status hasn't changed Updates #13038 Change-Id: I9cc67cf18ba44ff66ba03cda486d5e111e395ce7	3 months ago
Nick Khyl	03acab2639	cmd/cloner, cmd/viewer, util/codegen: add support for aliases of cloneable types We have several checked type assertions to types.Named in both cmd/cloner and cmd/viewer. As Go 1.23 updates the go/types package to produce Alias type nodes for type aliases, these type assertions no longer work as expected unless the new behavior is disabled with gotypesalias=0. In this PR, we add codegen.NamedTypeOf(t types.Type), which functions like t.(types.Named) but also unrolls type aliases. We then use it in place of type assertions in the cmd/cloner and cmd/viewer packages where appropriate. We also update type switches to include types.Alias alongside types.Named in relevant cases, remove *types.Struct cases when switching on types.Type.Underlying and update the tests with more cases where type aliases can be used. Updates #13224 Updates #12912 Signed-off-by: Nick Khyl <nickk@tailscale.com>	3 months ago
Nick Khyl	a9dc6e07ad	util/codegen, cmd/cloner, cmd/viewer: update codegen.LookupMethod to support alias type nodes Go 1.23 updates the go/types package to produce Alias type nodes for type aliases, unless disabled with gotypesalias=0. This new default behavior breaks codegen.LookupMethod, which uses checked type assertions to types.Named and types.Interface, as only named types and interfaces have methods. In this PR, we update codegen.LookupMethod to perform method lookup on the right-hand side of the alias declaration and clearly switch on the supported type nodes types. We also improve support for various edge cases, such as when an alias is used as a type parameter constraint, and add tests for the LookupMethod function. Additionally, we update cmd/viewer/tests to include types with aliases used in type fields and generic type constraints. Updates #13224 Updates #12912 Signed-off-by: Nick Khyl <nickk@tailscale.com>	3 months ago
Brad Fitzpatrick	3b70968c25	cmd/vnet: add --blend and --pcap flags Updates #13038 Change-Id: Id16ea9eb94447a3d9651215f04b2525daf10b3eb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago
Brad Fitzpatrick	3904e4d175	cmd/tta, tstest/natlab/vnet: remove unneeded port 124 log hack, add log buffer The natlab Test Agent (tta) still had its old log streaming hack in place where it dialed out to anything on TCP port 124 and those logs were streamed to the host running the tests. But we'd since added gokrazy syslog streaming support, which made that redundant. So remove all the port 124 stuff. And then make sure we log to stderr so gokrazy logs it to syslog. Also, keep the first 1MB of logs in memory in tta too, exported via localhost:8034/logs for interactive debugging. That was very useful during debugging when I added IPv6 support. (which is coming in future PRs) Updates #13038 Change-Id: Ieed904a704410b9031d5fd5f014a73412348fa7f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago
Brad Fitzpatrick	b091264c0a	cmd/systray: set ipn.NotifyNoPrivateKeys, permit non-operator use Otherwise you get "Access denied: watch IPN bus access denied, must set ipn.NotifyNoPrivateKeys when not running as admin/root or operator". This lets a non-operator at least start the app and see the status, even if they can't change everything. (the web UI is unaffected by operator) A future change can add a LocalAPI call to check permissions and guide people through adding a user as an operator (perhaps the web client can do that?) Updates #1708 Change-Id: I699e035a251b4ebe14385102d5e7a2993424c4b7 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago
Will Norris	3c66ee3f57	cmd/systray: add a basic linux systray app This adds a systray app for linux, similar to the apps for macOS and windows. There are already a number of community-developed systray apps, but most of them are either long abandoned, are built for a specific desktop environment, or simply wrap the tailscale CLI. This uses fyne.io/systray (a fork of github.com/getlantern/systray) which uses newer D-Bus specifications to render the tray icon and menu. This results in a pretty broad support for modern desktop environments. This initial commit lacks a number of features like profile switching, device listing, and exit node selection. This is really focused on the application structure, the interaction with LocalAPI, and some system integration pieces like the app icon, notifications, and the clipboard. Updates #1708 Signed-off-by: Will Norris <will@tailscale.com>	3 months ago
Percy Wegmann	d00d6d6dc2	go.mod: update to github.com/tailscale/netlink library that doesn't require vishvananda/netlink After the upstream PR is merged, we can point directly at github.com/vishvananda/netlink and retire github.com/tailscale/netlink. See https://github.com/vishvananda/netlink/pull/1006 Updates #12298 Signed-off-by: Percy Wegmann <percy@tailscale.com>	3 months ago
Ilarion Kovalchuk	0cb7eb9b75	net/dns: updated gonotify dependency to v2 that supports closable context Signed-off-by: Ilarion Kovalchuk <illarion.kovalchuk@gmail.com>	3 months ago
Brad Fitzpatrick	696711cc17	all: switch to and require Go 1.23 Updates #12912 Change-Id: Ib4ae26eb5fb68ad2216cab4913811b94f7eed5b6 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago
Brad Fitzpatrick	0ff474ff37	all: fix new lint warnings from bumping staticcheck In prep for updating to new staticcheck required for Go 1.23. Updates #12912 Change-Id: If77892a023b79c6fa798f936fc80428fd4ce0673 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 months ago

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