Commit Graph

295 Commits (cc8dc9e4dcc83fced123d0268e62d4530c515ac6)

Author SHA1 Message Date
Anton f35c49d211 net/dns: update to illarion/gonotify/v3 to fix a panic
Fixes #14699

Signed-off-by: Anton <anton@tailscale.com>
10 months ago
Brad Fitzpatrick 27f8e2e31d go.mod: bump x/* deps
Notably, this pulls in https://go.googlesource.com/net/+/2dab271ff1b7396498746703d88fefcddcc5cec7
for golang/go#71557.

Updates #8043

Change-Id: I3637dbf27b90423dd4d54d147f12688b51f3ce36
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
10 months ago
James Tucker e113b106a6 go.mod,wgengine/netstack: use cubic congestion control, bump gvisor
Cubic performs better than Reno in higher BDP scenarios, and enables the
use of the hystart++ implementation contributed by Coder. This improves
throughput on higher BDP links with a much faster ramp.

gVisor is bumped as well for some fixes related to send queue processing
and RTT tracking.

Updates #9707
Updates #10408
Updates #12393
Updates tailscale/corp#24483
Updates tailscale/corp#25169

Signed-off-by: James Tucker <james@tailscale.com>
10 months ago
Brad Fitzpatrick 05ac21ebe4 all: use new LocalAPI client package location
It was moved in f57fa3cbc3.

Updates tailscale/corp#22748

Change-Id: I19f965e6bded1d4c919310aa5b864f2de0cd6220
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
10 months ago
Percy Wegmann f57fa3cbc3 client,localclient: move localclient.go to client/local package
Updates tailscale/corp#22748

Signed-off-by: Percy Wegmann <percy@tailscale.com>
10 months ago
Mike O'Driscoll d5316a4fbb
cmd/derper: add setec secret support (#14890)
Add setec secret support for derper.
Support dev mode via env var, and setec via secrets URL.

For backwards compatibility use setec load from file also.

Updates tailscale/corp#25756

Signed-off-by: Mike O'Driscoll <mikeo@tailscale.com>
10 months ago
Irbe Krumina 5ef934b62d
cmd/k8s-operator: reinstate HA Ingress reconciler (#14887)
This change:

- reinstates the HA Ingress controller that was disabled for 1.80 release

- fixes the API calls to manage VIPServices as the API was changed

- triggers the HA Ingress reconciler on ProxyGroup changes

Updates tailscale/tailscale#24795

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
10 months ago
Percy Wegmann 2e95313b8b ssh,tempfork/gliderlabs/ssh: replace github.com/tailscale/golang-x-crypto/ssh with golang.org/x/crypto/ssh
The upstream crypto package now supports sending banners at any time during
authentication, so the Tailscale fork of crypto/ssh is no longer necessary.

github.com/tailscale/golang-x-crypto is still needed for some custom ACME
autocert functionality.

tempfork/gliderlabs is still necessary because of a few other customizations,
mostly related to TTY handling.

Originally implemented in 46fd4e58a2,
which was reverted in b60f6b849a to
keep the change out of v1.80.

Updates #8593

Signed-off-by: Percy Wegmann <percy@tailscale.com>
10 months ago
Irbe Krumina a49af98b31
cmd/k8s-operator: temporarily disable HA Ingress controller (#14833)
The HA Ingress functionality is not actually doing anything
valuable yet, so don't run the controller in 1.80 release yet.

Updates tailscale/tailscale#24795

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
10 months ago
Irbe Krumina 3f39211f98
cmd/k8s-operator: check that cluster traffic is routed to egress ProxyGroup Pod before marking it as ready (#14792)
This change builds on top of #14436 to ensure minimum downtime during egress ProxyGroup update rollouts:

- adds a readiness gate for ProxyGroup replicas that prevents kubelet from marking
the replica Pod as ready before a corresponding readiness condition has been added
to the Pod

- adds a reconciler that reconciles egress ProxyGroup Pods and, for each that is not ready,
if cluster traffic for relevant egress endpoints is routed via this Pod- if so add the
readiness condition to allow kubelet to mark the Pod as ready.

During the sequenced StatefulSet update rollouts kubelet does not restart
a Pod before the previous replica has been updated and marked as ready, so
ensuring that a replica is not marked as ready allows to avoid a temporary
post-update situation where all replicas have been restarted, but none of the
new ones are yet set up as an endpoint for the egress service, so cluster traffic is dropped.

Updates tailscale/tailscale#14326

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
10 months ago
Percy Wegmann b60f6b849a Revert "ssh,tempfork/gliderlabs/ssh: replace github.com/tailscale/golang-x-crypto/ssh with golang.org/x/crypto/ssh"
This reverts commit 46fd4e58a2.

We don't want to include this in 1.80 yet, but can add it back post 1.80.

Updates #8593

Signed-off-by: Percy Wegmann <percy@tailscale.com>
10 months ago
Irbe Krumina 52f88f782a
cmd/k8s-operator: don't set deprecated configfile hash on new proxies (#14817)
Fixes the configfile reload logic- if the tailscale capver can not
yet be determined because the device info is not yet written to the
state Secret, don't assume that the proxy is pre-110.

Updates tailscale/tailscale#13032

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
10 months ago
Irbe Krumina b406f209c3
cmd/{k8s-operator,containerboot},kube: ensure egress ProxyGroup proxies don't terminate while cluster traffic is still routed to them (#14436)
cmd/{containerboot,k8s-operator},kube: add preshutdown hook for egress PG proxies

This change is part of work towards minimizing downtime during update
rollouts of egress ProxyGroup replicas.
This change:
- updates the containerboot health check logic to return Pod IP in headers,
if set
- always runs the health check for egress PG proxies
- updates ClusterIP Services created for PG egress endpoints to include
the health check endpoint
- implements preshutdown endpoint in proxies. The preshutdown endpoint
logic waits till, for all currently configured egress services, the ClusterIP
Service health check endpoint is no longer returned by the shutting-down Pod
(by looking at the new Pod IP header).
- ensures that kubelet is configured to call the preshutdown endpoint

This reduces the possibility that, as replicas are terminated during an update,
a replica gets terminated to which cluster traffic is still being routed via
the ClusterIP Service because kube proxy has not yet updated routig rules.
This is not a perfect check as in practice, it only checks that the kube
proxy on the node on which the proxy runs has updated rules. However, overall
this might be good enough.

The preshutdown logic is disabled if users have configured a custom health check
port via TS_LOCAL_ADDR_PORT env var. This change throws a warnign if so and in
future setting of that env var for operator proxies might be disallowed (as users
shouldn't need to configure this for a Pod directly).
This is backwards compatible with earlier proxy versions.

Updates tailscale/tailscale#14326


Signed-off-by: Irbe Krumina <irbe@tailscale.com>
10 months ago
Percy Wegmann 46fd4e58a2 ssh,tempfork/gliderlabs/ssh: replace github.com/tailscale/golang-x-crypto/ssh with golang.org/x/crypto/ssh
The upstream crypto package now supports sending banners at any time during
authentication, so the Tailscale fork of crypto/ssh is no longer necessary.

github.com/tailscale/golang-x-crypto is still needed for some custom ACME
autocert functionality.

tempfork/gliderlabs is still necessary because of a few other customizations,
mostly related to TTY handling.

Updates #8593

Signed-off-by: Percy Wegmann <percy@tailscale.com>
10 months ago
Brad Fitzpatrick 2691b9f6be tempfork/acme: add new package for x/crypto package acme fork, move
We've been maintaining temporary dev forks of golang.org/x/crypto/{acme,ssh}
in https://github.com/tailscale/golang-x-crypto instead of using
this repo's tempfork directory as we do with other packages. The reason we were
doing that was because x/crypto/ssh depended on x/crypto/ssh/internal/poly1305
and I hadn't noticed there are forwarding wrappers already available
in x/crypto/poly1305. It also depended internal/bcrypt_pbkdf but we don't use that
so it's easy to just delete that calling code in our tempfork/ssh.

Now that our SSH changes have been upstreamed, we can soon unfork from SSH.

That leaves ACME remaining.

This change copies our tailscale/golang-x-crypto/acme code to
tempfork/acme but adds a test that our vendored copied still matches
our tailscale/golang-x-crypto repo, where we can continue to do
development work and rebases with upstream. A comment on the new test
describes the expected workflow.

While we could continue to just import & use
tailscale/golang-x-crypto/acme, it seems a bit nicer to not have that
entire-fork-of-x-crypto visible at all in our transitive deps and the
questions that invites. Showing just a fork of an ACME client is much
less scary. It does add a step to the process of hacking on the ACME
client code, but we do that approximately never anyway, and the extra
step is very incremental compared to the existing tedious steps.

Updates #8593
Updates #10238

Change-Id: I8af4378c04c1f82e63d31bf4d16dba9f510f9199
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
10 months ago
Brad Fitzpatrick bce05ec6c3 control/controlclient,tempfork/httprec: don't link httptest, test certs for c2n
The c2n handling code was using the Go httptest package's
ResponseRecorder code but that's in a test package which brings in
Go's test certs, etc.

This forks the httptest recorder type into its own package that only
has the recorder and adds a test that we don't re-introduce a
dependency on httptest.

Updates #12614

Change-Id: I3546f49972981e21813ece9064cc2be0b74f4b16
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
10 months ago
Brad Fitzpatrick 8c925899e1 go.mod: bump depaware, add --internal flag to stop hiding internal packages
The hiding of internal packages has hidden things I wanted to see a
few times now. Stop hiding them. This makes depaware.txt output a bit
longer, but not too much. Plus we only really look at it with diffs &
greps anyway; it's not like anybody reads the whole thing.

Updates #12614

Change-Id: I868c89eeeddcaaab63e82371651003629bc9bda8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
10 months ago
Brad Fitzpatrick 68a66ee81b feature/capture: move packet capture to feature/*, out of iOS + CLI
We had the debug packet capture code + Lua dissector in the CLI + the
iOS app. Now we don't, with tests to lock it in.

As a bonus, tailscale.com/net/packet and tailscale.com/net/flowtrack
no longer appear in the CLI's binary either.

A new build tag ts_omit_capture disables the packet capture code and
was added to build_dist.sh's --extra-small mode.

Updates #12614

Change-Id: I79b0628c0d59911bd4d510c732284d97b0160f10
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
11 months ago
Brad Fitzpatrick d6abbc2e61 net/tstun: move TAP support out to separate package feature/tap
Still behind the same ts_omit_tap build tag.

See #14738 for background on the pattern.

Updates #12614

Change-Id: I03fb3d2bf137111e727415bd8e713d8568156ecc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
11 months ago
Tom Proctor 3033a96b02
cmd/k8s-operator: fix reconciler name clash (#14712)
The new ProxyGroup-based Ingress reconciler is causing a fatal log at
startup because it has the same name as the existing Ingress reconciler.
Explicitly name both to ensure they have unique names that are consistent
with other explicitly named reconcilers.

Updates #14583

Change-Id: Ie76e3eaf3a96b1cec3d3615ea254a847447372ea
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
11 months ago
Brad Fitzpatrick 1562a6f2f2 feature/*: make Wake-on-LAN conditional, start supporting modular features
This pulls out the Wake-on-LAN (WoL) code out into its own package
(feature/wakeonlan) that registers itself with various new hooks
around tailscaled.

Then a new build tag (ts_omit_wakeonlan) causes the package to not
even be linked in the binary.

Ohter new packages include:

   * feature: to just record which features are loaded. Future:
     dependencies between features.
   * feature/condregister: the package with all the build tags
     that tailscaled, tsnet, and the Tailscale Xcode project
     extension can empty (underscore) import to load features
     as a function of the defined build tags.

Future commits will move of our "ts_omit_foo" build tags into this
style.

Updates #12614

Change-Id: I9c5378dafb1113b62b816aabef02714db3fc9c4a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
11 months ago
Adrian Dewhurst 0fa7b4a236 tailcfg: add ServiceName
Rather than using a string everywhere and needing to clarify that the
string should have the svc: prefix, create a separate type for Service
names.

Updates tailscale/corp#24607

Change-Id: I720e022f61a7221644bb60955b72cacf42f59960
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
11 months ago
Brad Fitzpatrick 150cd30b1d ipn/ipnlocal: also use LetsEncrypt-baked-in roots for cert validation
We previously baked in the LetsEncrypt x509 root CA for our tlsdial
package.

This moves that out into a new "bakedroots" package and is now also
shared by ipn/ipnlocal's cert validation code (validCertPEM) that
decides whether it's time to fetch a new cert.

Otherwise, a machine without LetsEncrypt roots locally in its system
roots is unable to use tailscale cert/serve and fetch certs.

Fixes #14690

Change-Id: Ic88b3bdaabe25d56b9ff07ada56a27e3f11d7159
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
11 months ago
Irbe Krumina 817ba1c300
cmd/{k8s-operator,containerboot},kube/kubetypes: parse Ingresses for ingress ProxyGroup (#14583)
cmd/k8s-operator: add logic to parse L7 Ingresses in HA mode

- Wrap the Tailscale API client used by the Kubernetes Operator
into a client that knows how to manage VIPServices.
- Create/Delete VIPServices and update serve config for L7 Ingresses
for ProxyGroup.
- Ensure that ingress ProxyGroup proxies mount serve config from a shared ConfigMap.

Updates tailscale/corp#24795


Signed-off-by: Irbe Krumina <irbe@tailscale.com>
11 months ago
Irbe Krumina 97a44d6453
go.{mod,sum},cmd/{k8s-operator,derper,stund}/depaware.txt: bump kube deps (#14601)
Updates kube deps and mkctr, regenerates kube yamls with the updated tooling.

Updates#cleanup

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
11 months ago
Tom Proctor 2d1f6f18cc
cmd/k8s-operator: require namespace config (#14648)
Most users should not run into this because it's set in the helm chart
and the deploy manifest, but if namespace is not set we get confusing
authz errors because the kube client tries to fetch some namespaced resources
as though they're cluster-scoped and reports permission denied. Try to
detect namespace from the default projected volume, and otherwise fatal.

Fixes #cleanup

Change-Id: I64b34191e440b61204b9ad30bbfa117abbbe09c3

Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
11 months ago
Aaron Klotz fcf90260ce atomicfile: use ReplaceFile on Windows so that attributes and ACLs are preserved
I moved the actual rename into separate, GOOS-specific files. On
non-Windows, we do a simple os.Rename. On Windows, we first try
ReplaceFile with a fallback to os.Rename if the target file does
not exist.

ReplaceFile is the recommended way to rename the file in this use case,
as it preserves attributes and ACLs set on the target file.

Updates #14428

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
11 months ago
Brad Fitzpatrick 414a01126a go.mod: bump mdlayher/netlink and u-root/uio to use Go 1.21 NativeEndian
This finishes the work started in #14616.

Updates #8632

Change-Id: I4dc07d45b1e00c3db32217c03b21b8b1ec19e782
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
11 months ago
Brad Fitzpatrick 69b90742fe util/uniq,types/lazy,*: delete code that's now in Go std
sync.OnceValue and slices.Compact were both added in Go 1.21.

cmp.Or was added in Go 1.22.

Updates #8632
Updates #11058

Change-Id: I89ba4c404f40188e1f8a9566c8aaa049be377754
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
11 months ago
Irbe Krumina 48a95c422a
cmd/containerboot,cmd/k8s-operator: reload tailscaled config (#14342)
cmd/{k8s-operator,containerboot}: reload tailscaled configfile when its contents have changed

Instead of restarting the Kubernetes Operator proxies each time
tailscaled config has changed, this dynamically reloads the configfile
using the new reload endpoint.
Older annotation based mechanism will be supported till 1.84
to ensure that proxy versions prior to 1.80 keep working with
operator 1.80 and newer.

Updates tailscale/tailscale#13032
Updates tailscale/corp#24795

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
11 months ago
Irbe Krumina 68997e0dfa
cmd/k8s-operator,k8s-operator: allow users to set custom labels for the optional ServiceMonitor (#14475)
* cmd/k8s-operator,k8s-operator: allow users to set custom labels for the optional ServiceMonitor

Updates tailscale/tailscale#14381

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
11 months ago
Irbe Krumina 8d4ca13cf8
cmd/k8s-operator,k8s-operator: support ingress ProxyGroup type (#14548)
Currently this does not yet do anything apart from creating
the ProxyGroup resources like StatefulSet.

Updates tailscale/corp#24795

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
11 months ago
Will Norris 60daa2adb8 all: fix golangci-lint errors
These erroneously blocked a recent PR, which I fixed by simply
re-running CI. But we might as well fix them anyway.
These are mostly `printf` to `print` and a couple of `!=` to `!Equal()`

Updates #cleanup

Signed-off-by: Will Norris <will@tailscale.com>
11 months ago
Tom Proctor 3adad364f1
cmd/k8s-operator,k8s-operator: include top-level CRD descriptions (#14435)
When reading https://doc.crds.dev/github.com/tailscale/tailscale/tailscale.com/ProxyGroup/v1alpha1@v1.78.3
I noticed there is no top-level description for ProxyGroup and Recorder. Add
one to give some high-level direction.

Updates #cleanup

Change-Id: I3666c5445be272ea5a1d4d02b6d5ad4c23afb09f

Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
12 months ago
Irbe Krumina cc168d9f6b
cmd/k8s-operator: fix ProxyGroup hostname (#14336)
Updates tailscale/tailscale#14325

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
12 months ago
James Tucker aa04f61d5e net/netcheck: adjust HTTPS latency check to connection time and avoid data race
The go-httpstat package has a data race when used with connections that
are performing happy-eyeballs connection setups as we are in the DERP
client. There is a long-stale PR upstream to address this, however
revisiting the purpose of this code suggests we don't really need
httpstat here.

The code populates a latency table that may be used to compare to STUN
latency, which is a lightweight RTT check. Switching out the reported
timing here to simply the request HTTP request RTT avoids the
problematic package.

Fixes tailscale/corp#25095

Signed-off-by: James Tucker <james@tailscale.com>
12 months ago
Tom Proctor f1ccdcc713
cmd/k8s-operator,k8s-operator: operator integration tests (#12792)
This is the start of an integration/e2e test suite for the tailscale operator.
It currently only tests two major features, ingress proxy and API server proxy,
but we intend to expand it to cover more features over time. It also only
supports manual runs for now. We intend to integrate it into CI checks in a
separate update when we have planned how to securely provide CI with the secrets
required for connecting to a test tailnet.

Updates #12622

Change-Id: I31e464bb49719348b62a563790f2bc2ba165a11b
Co-authored-by: Irbe Krumina <irbe@tailscale.com>
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
1 year ago
Tom Proctor df94a14870
cmd/k8s-operator: don't error for transient failures (#14073)
Every so often, the ProxyGroup and other controllers lose an optimistic locking race
with other controllers that update the objects they create. Stop treating
this as an error event, and instead just log an info level log line for it.

Fixes #14072

Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
1 year ago
Irbe Krumina 2aac916888
cmd/{containerboot,k8s-operator},kube/kubetypes: kube Ingress L7 proxies only advertise HTTPS endpoint when ready (#14171)
cmd/containerboot,kube/kubetypes,cmd/k8s-operator: detect if Ingress is created in a tailnet that has no HTTPS

This attempts to make Kubernetes Operator L7 Ingress setup failures more explicit:
- the Ingress resource now only advertises HTTPS endpoint via status.ingress.loadBalancer.hostname when/if the proxy has succesfully loaded serve config
- the proxy attempts to catch cases where HTTPS is disabled for the tailnet and logs a warning

Updates tailscale/tailscale#12079
Updates tailscale/tailscale#10407

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Irbe Krumina aa43388363
cmd/k8s-operator: fix a bunch of status equality checks (#14270)
Updates tailscale/tailscale#14269

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Oliver Rahner cbf1a4efe9
cmd/k8s-operator/deploy/chart: allow reading OAuth creds from a CSI driver's volume and annotating operator's Service account (#14264)
cmd/k8s-operator/deploy/chart: allow reading OAuth creds from a CSI driver's volume and annotating operator's Service account

Updates #14264

Signed-off-by: Oliver Rahner <o.rahner@dke-data.com>
1 year ago
Tom Proctor efdfd54797
cmd/k8s-operator: avoid port collision with metrics endpoint (#14185)
When the operator enables metrics on a proxy, it uses the port 9001,
and in the near future it will start using 9002 for the debug endpoint
as well. Make sure we don't choose ports from a range that includes
9001 so that we never clash. Setting TS_SOCKS5_SERVER, TS_HEALTHCHECK_ADDR_PORT,
TS_OUTBOUND_HTTP_PROXY_LISTEN, and PORT could also open arbitrary ports,
so we will need to document that users should not choose ports from the
10000-11000 range for those settings.

Updates #13406

Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
1 year ago
Irbe Krumina 9f9063e624
cmd/k8s-operator,k8s-operator,go.mod: optionally create ServiceMonitor (#14248)
* cmd/k8s-operator,k8s-operator,go.mod: optionally create ServiceMonitor

Adds a new spec.metrics.serviceMonitor field to ProxyClass.
If that's set to true (and metrics are enabled), the operator
will create a Prometheus ServiceMonitor for each proxy to which
the ProxyClass applies.
Additionally, create a metrics Service for each proxy that has
metrics enabled.

Updates tailscale/tailscale#11292

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Irbe Krumina eabb424275
cmd/k8s-operator,docs/k8s: run tun mode proxies in privileged containers (#14262)
We were previously relying on unintended behaviour by runc where
all containers where by default given read/write/mknod permissions
for tun devices.
This behaviour was removed in https://github.com/opencontainers/runc/pull/3468
and released in runc 1.2.
Containerd container runtime, used by Docker and majority of Kubernetes distributions
bumped runc to 1.2 in 1.7.24 https://github.com/containerd/containerd/releases/tag/v1.7.24
thus breaking our reference tun mode Tailscale Kubernetes manifests and Kubernetes
operator proxies.

This PR changes the all Kubernetes container configs that run Tailscale in tun mode
to privileged. This should not be a breaking change because all these containers would
run in a Pod that already has a privileged init container.

Updates tailscale/tailscale#14256
Updates tailscale/tailscale#10814

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Tom Proctor 24095e4897
cmd/containerboot: serve health on local endpoint (#14246)
* cmd/containerboot: serve health on local endpoint

We introduced stable (user) metrics in #14035, and `TS_LOCAL_ADDR_PORT`
with it. Rather than requiring users to specify a new addr/port
combination for each new local endpoint they want the container to
serve, this combines the health check endpoint onto the local addr/port
used by metrics if `TS_ENABLE_HEALTH_CHECK` is used instead of
`TS_HEALTHCHECK_ADDR_PORT`.

`TS_LOCAL_ADDR_PORT` now defaults to binding to all interfaces on 9002
so that it works more seamlessly and with less configuration in
environments other than Kubernetes, where the operator always overrides
the default anyway. In particular, listening on localhost would not be
accessible from outside the container, and many scripted container
environments do not know the IP address of the container before it's
started. Listening on all interfaces allows users to just set one env
var (`TS_ENABLE_METRICS` or `TS_ENABLE_HEALTH_CHECK`) to get a fully
functioning local endpoint they can query from outside the container.

Updates #14035, #12898

Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
1 year ago
Irbe Krumina 13faa64c14
cmd/k8s-operator: always set stateful filtering to false (#14216)
Updates tailscale/tailscale#12108

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Irbe Krumina f8587e321e
cmd/k8s-operator: fix port name change bug for egress ProxyGroup proxies (#14247)
Ensure that the ExternalName Service port names are always synced to the
ClusterIP Service, to fix a bug where if users created a Service with
a single unnamed port and later changed to 1+ named ports, the operator
attempted to apply an invalid multi-port Service with an unnamed port.
Also, fixes a small internal issue where not-yet Service status conditons
were lost on a spec update.

Updates tailscale/tailscale#10102

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Tom Proctor 74d4652144
cmd/{containerboot,k8s-operator},k8s-operator: new options to expose user metrics (#14035)
containerboot:

Adds 3 new environment variables for containerboot, `TS_LOCAL_ADDR_PORT` (default
`"${POD_IP}:9002"`), `TS_METRICS_ENABLED` (default `false`), and `TS_DEBUG_ADDR_PORT`
(default `""`), to configure metrics and debug endpoints. In a follow-up PR, the
health check endpoint will be updated to use the `TS_LOCAL_ADDR_PORT` if
`TS_HEALTHCHECK_ADDR_PORT` hasn't been set.

Users previously only had access to internal debug metrics (which are unstable
and not recommended) via passing the `--debug` flag to tailscaled, but can now
set `TS_METRICS_ENABLED=true` to expose the stable metrics documented at
https://tailscale.com/kb/1482/client-metrics at `/metrics` on the addr/port
specified by `TS_LOCAL_ADDR_PORT`.

Users can also now configure a debug endpoint more directly via the
`TS_DEBUG_ADDR_PORT` environment variable. This is not recommended for production
use, but exposes an internal set of debug metrics and pprof endpoints.

operator:

The `ProxyClass` CRD's `.spec.metrics.enable` field now enables serving the
stable user metrics documented at https://tailscale.com/kb/1482/client-metrics
at `/metrics` on the same "metrics" container port that debug metrics were
previously served on. To smooth the transition for anyone relying on the way the
operator previously consumed this field, we also _temporarily_ serve tailscaled's
internal debug metrics on the same `/debug/metrics` path as before, until 1.82.0
when debug metrics will be turned off by default even if `.spec.metrics.enable`
is set. At that point, anyone who wishes to continue using the internal debug
metrics (not recommended) will need to set the new `ProxyClass` field
`.spec.statefulSet.pod.tailscaleContainer.debug.enable`.

Users who wish to opt out of the transitional behaviour, where enabling
`.spec.metrics.enable` also enables debug metrics, can set
`.spec.statefulSet.pod.tailscaleContainer.debug.enable` to false (recommended).

Separately but related, the operator will no longer specify a host port for the
"metrics" container port definition. This caused scheduling conflicts when k8s
needs to schedule more than one proxy per node, and was not necessary for allowing
the pod's port to be exposed to prometheus scrapers.

Updates #11292

---------

Co-authored-by: Kristoffer Dalby <kristoffer@tailscale.com>
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
1 year ago
Irbe Krumina c59ab6baac
cmd/k8s-operator/deploy: ensure that operator can write kube state Events (#14177)
A small follow-up to #14112- ensures that the operator itself can emit
Events for its kube state store changes.

Updates tailscale/tailscale#14080

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Irbe Krumina ebeb5da202
cmd/k8s-operator,kube/kubeclient,docs/k8s: update rbac to emit events + small fixes (#14164)
This is a follow-up to #14112 where our internal kube client was updated
to allow it to emit Events - this updates our sample kube manifests
and tsrecorder manifest templates so they can benefit from this functionality.

Updates tailscale/tailscale#14080

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
James Stocker 303a4a1dfb
Make the deployment of an IngressClass optional, default to true (#14153)
Fixes tailscale/tailscale#14152
Signed-off-by: James Stocker jamesrstocker@gmail.com

Co-authored-by: James Stocker <james.stocker@intenthq.co.uk>
1 year ago
Irbe Krumina 00517c8189
kube/{kubeapi,kubeclient},ipn/store/kubestore,cmd/{containerboot,k8s-operator}: emit kube store Events (#14112)
Adds functionality to kube client to emit Events.
Updates kube store to emit Events when tailscaled state has been loaded, updated or if any errors where
encountered during those operations.
This should help in cases where an error related to state loading/updating caused the Pod to crash in a loop-
unlike logs of the originally failed container instance, Events associated with the Pod will still be
accessible even after N restarts.

Updates tailscale/tailscale#14080

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Irbe Krumina cf41cec5a8
cmd/{k8s-operator,containerboot},k8s-operator: remove support for proxies below capver 95. (#13986)
Updates tailscale/tailscale#13984

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Tom Proctor d8a3683fdf
cmd/k8s-operator: restart ProxyGroup pods less (#14045)
We currently annotate pods with a hash of the tailscaled config so that
we can trigger pod restarts whenever it changes. However, the hash
updates more frequently than is necessary causing more restarts than is
necessary. This commit removes two causes; scaling up/down and removing
the auth key after pods have initially authed to control. However, note
that pods will still restart on scale-up/down because of the updated set
of volumes mounted into each pod. Hopefully we can fix that in a planned
follow-up PR.

Updates #13406

Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
1 year ago
Irbe Krumina b9ecc50ce3
cmd/k8s-operator,k8s-operator,kube/kubetypes: add an option to configure app connector via Connector spec (#13950)
* cmd/k8s-operator,k8s-operator,kube/kubetypes: add an option to configure app connector via Connector spec

Updates tailscale/tailscale#11113

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Brad Fitzpatrick 020cacbe70 derp/derphttp: don't link websockets other than on GOOS=js
Or unless the new "ts_debug_websockets" build tag is set.

Updates #1278

Change-Id: Ic4c4f81c1924250efd025b055585faec37a5491d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Brad Fitzpatrick c3306bfd15 control/controlhttp/controlhttpserver: split out Accept to its own package
Otherwise all the clients only using control/controlhttp for the
ts2021 HTTP client were also pulling in WebSocket libraries, as the
server side always needs to speak websockets, but only GOOS=js clients
speak it.

This doesn't yet totally remove the websocket dependency on Linux because
Linux has a envknob opt-in to act like GOOS=js for manual testing and force
the use of WebSockets for DERP only (not control). We can put that behind
a build tag in a future change to eliminate the dep on all GOOSes.

Updates #1278

Change-Id: I4f60508f4cad52bf8c8943c8851ecee506b7ebc9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Irbe Krumina 8ba9b558d2
envknob,kube/kubetypes,cmd/k8s-operator: add app type for ProxyGroup (#14029)
Sets a custom hostinfo app type for ProxyGroup replicas, similarly
to how we do it for all other Kubernetes Operator managed components.

Updates tailscale/tailscale#13406,tailscale/corp#22920

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Brad Fitzpatrick 01185e436f types/result, util/lineiter: add package for a result type, use it
This adds a new generic result type (motivated by golang/go#70084) to
try it out, and uses it in the new lineutil package (replacing the old
lineread package), changing that package to return iterators:
sometimes over []byte (when the input is all in memory), but sometimes
iterators over results of []byte, if errors might happen at runtime.

Updates #12912
Updates golang/go#70084

Change-Id: Iacdc1070e661b5fb163907b1e8b07ac7d51d3f83
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Irbe Krumina 809a6eba80
cmd/k8s-operator: allow to optionally configure tailscaled port (#14005)
Updates tailscale/tailscale#13981

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Nick Khyl 3f626c0d77 cmd/tailscale/cli, client/tailscale, ipn/localapi: add tailscale syspolicy {list,reload} commands
In this PR, we add the tailscale syspolicy command with two subcommands: list, which displays
policy settings, and reload, which forces a reload of those settings. We also update the LocalAPI
and LocalClient to facilitate these additions.

Updates #12687

Signed-off-by: Nick Khyl <nickk@tailscale.com>
1 year ago
Irbe Krumina 1103044598
cmd/k8s-operator,k8s-operator: add topology spread constraints to ProxyClass (#13959)
Now when we have HA for egress proxies, it makes sense to support topology
spread constraints that would allow users to define more complex
topologies of how proxy Pods need to be deployed in relation with other
Pods/across regions etc.

Updates tailscale/tailscale#13406

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Nick Kirby 6ab39b7bcd
cmd/k8s-operator: validate that tailscale.com/tailnet-ip annotation value is a valid IP
Fixes #13836
Signed-off-by: Nick Kirby <nrkirb@gmail.com>
1 year ago
Nick Khyl e815ae0ec4 util/syspolicy, ipn/ipnlocal: update syspolicy package to utilize syspolicy/rsop
In this PR, we update the syspolicy package to utilize syspolicy/rsop under the hood,
and remove syspolicy.CachingHandler, syspolicy.windowsHandler and related code
which is no longer used.

We mark the syspolicy.Handler interface and RegisterHandler/SetHandlerForTest functions
as deprecated, but keep them temporarily until they are no longer used in other repos.

We also update the package to register setting definitions for all existing policy settings
and to register the Registry-based, Windows-specific policy stores when running on Windows.

Finally, we update existing internal and external tests to use the new API and add a few more
tests and benchmarks.

Updates #12687

Signed-off-by: Nick Khyl <nickk@tailscale.com>
1 year ago
Maisem Ali d4d21a0bbf net/tstun: restore tap mode functionality
It had bit-rotted likely during the transition to vector io in
76389d8baf. Tested on Ubuntu 24.04
by creating a netns and doing the DHCP dance to get an IP.

Updates #2589

Signed-off-by: Maisem Ali <maisem@tailscale.com>
1 year ago
Andrea Gottardo fd77965f23
net/tlsdial: call out firewalls blocking Tailscale in health warnings (#13840)
Updates tailscale/tailscale#13839

Adds a new blockblame package which can detect common MITM SSL certificates used by network appliances. We use this in `tlsdial` to display a dedicated health warning when we cannot connect to control, and a network appliance MITM attack is detected.

Signed-off-by: Andrea Gottardo <andrea@gottardo.me>
1 year ago
Mario Minardi d32d742af0
ipn/ipnlocal: error when trying to use exit node on unsupported platform (#13726)
Adds logic to `checkExitNodePrefsLocked` to return an error when
attempting to use exit nodes on a platform where this is not supported.
This mirrors logic that was added to error out when trying to use `ssh`
on an unsupported platform, and has very similar semantics.

Fixes https://github.com/tailscale/tailscale/issues/13724

Signed-off-by: Mario Minardi <mario@tailscale.com>
1 year ago
Percy Wegmann f9949cde8b client/tailscale,cmd/{cli,get-authkey,k8s-operator}: set distinct User-Agents
This helps better distinguish what is generating activity to the
Tailscale public API.

Updates tailscale/corp#23838

Signed-off-by: Percy Wegmann <percy@tailscale.com>
1 year ago
Brad Fitzpatrick 1938685d39 clientupdate: don't link distsign on platforms that don't download
Updates tailscale/corp#20099

Change-Id: Ie3b782379b19d5f7890a8d3a378096b4f3e8a612
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Irbe Krumina 89ee6bbdae
cmd/k8s-operator,k8s-operator/apis: set a readiness condition on egress Services for ProxyGroup (#13746)
cmd/k8s-operator,k8s-operator/apis: set a readiness condition on egress Services

Set a readiness condition on ExternalName Services that define a tailnet target
to route cluster traffic to via a ProxyGroup's proxies. The condition
is set to true if at least one proxy is currently set up to route.

Updates tailscale/tailscale#13406

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Irbe Krumina f6d4d03355
cmd/k8s-operator: don't error out if ProxyClass for ProxyGroup not found. (#13736)
We don't need to error out and continuously reconcile if ProxyClass
has not (yet) been created, once it gets created the ProxyGroup
reconciler will get triggered.

Updates tailscale/tailscale#13406

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Irbe Krumina 60011e73b8
cmd/k8s-operator: fix Pod IP selection (#13743)
Ensure that .status.podIPs is used to select Pod's IP
in all reconcilers.

Updates tailscale/tailscale#13406

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Nick Khyl da40609abd util/syspolicy, ipn: add "tailscale debug component-logs" support
Fixes #13313
Fixes #12687

Signed-off-by: Nick Khyl <nickk@tailscale.com>
1 year ago
Tom Proctor 07c157ee9f
cmd/k8s-operator: base ProxyGroup StatefulSet on common proxy.yaml definition (#13714)
As discussed in #13684, base the ProxyGroup's proxy definitions on the same
scaffolding as the existing proxies, as defined in proxy.yaml

Updates #13406

Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
1 year ago
Irbe Krumina 861dc3631c
cmd/{k8s-operator,containerboot},kube/egressservices: fix Pod IP check for dual stack clusters (#13721)
Currently egress Services for ProxyGroup only work for Pods and Services
with IPv4 addresses. Ensure that it works on dual stack clusters by reading
proxy Pod's IP from the .status.podIPs list that always contains both
IPv4 and IPv6 address (if the Pod has them) rather than .status.podIP that
could contain IPv6 only for a dual stack cluster.

Updates tailscale/tailscale#13406

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Tom Proctor 36cb2e4e5f
cmd/k8s-operator,k8s-operator: use default ProxyClass if set for ProxyGroup (#13720)
The default ProxyClass can be set via helm chart or env var, and applies
to all proxies that do not otherwise have an explicit ProxyClass set.
This ensures proxies created by the new ProxyGroup CRD are consistent
with the behaviour of existing proxies

Nearby but unrelated changes:

* Fix up double error logs (controller runtime logs returned errors)
* Fix a couple of variable names

Updates #13406

Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
1 year 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>
1 year 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>
1 year 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>
1 year 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>
1 year 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>
1 year ago
Cameron Stokes 65c26357b1
cmd/k8s-operator, k8s-operator: fix outdated kb links (#13585)
updates #13583

Signed-off-by: Cameron Stokes <cameron@tailscale.com>
1 year 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>
1 year 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>
1 year 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>
1 year 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>
1 year 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>
1 year 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
1 year 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>
1 year 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>
1 year 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>
1 year ago
Ilarion Kovalchuk 0cb7eb9b75 net/dns: updated gonotify dependency to v2 that supports closable context
Signed-off-by: Ilarion Kovalchuk <illarion.kovalchuk@gmail.com>
1 year 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>
1 year 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>
1 year ago
Jordan Whited df6014f1d7
net/tstun,wgengine{/netstack/gro}: refactor and re-enable gVisor GRO for Linux (#13172)
In 2f27319baf we disabled GRO due to a
data race around concurrent calls to tstun.Wrapper.Write(). This commit
refactors GRO to be thread-safe, and re-enables it on Linux.

This refactor now carries a GRO type across tstun and netstack APIs
with a lifetime that is scoped to a single tstun.Wrapper.Write() call.

In 25f0a3fc8f we used build tags to
prevent importation of gVisor's GRO package on iOS as at the time we
believed it was contributing to additional memory usage on that
platform. It wasn't, so this commit simplifies and removes those
build tags.

Updates tailscale/corp#22353
Updates tailscale/corp#22125
Updates #6816

Signed-off-by: Jordan Whited <jordan@tailscale.com>
1 year ago
ChandonPierre 93dc2ded6e
cmd/k8s-operator: support default proxy class in k8s-operator (#12711)
Signed-off-by: ChandonPierre <cpierre@coreweave.com>

Closes #12421
1 year ago
pierig-n3xtio 2105773874
cmd/k8s-operator/deploy: replace wildcards in Kubernetes Operator RBAC role definitions with verbs
cmd/k8s-operator/deploy: replace wildcards in Kubernetes Operator RBAC role definitions with verbs

fixes: #13168

Signed-off-by: Pierig Le Saux <pierig@n3xt.io>
1 year ago
tomholford 16bb541adb wgengine/magicsock: replace deprecated poly1305 (#13184)
Signed-off-by: tomholford <tomholford@users.noreply.github.com>
1 year ago
Kyle Carberry 6c852fa817 go.{mod,sum}: migrate from nhooyr.io/websocket to github.com/coder/websocket
Coder has just adopted nhooyr/websocket which unfortunately changes the import path.

`github.com/coder/coder` imports `tailscale.com/net/wsconn` which was still pointing
to `nhooyr.io/websocket`, but this change updates it.

See https://coder.com/blog/websocket

Updates #13154

Change-Id: I3dec6512472b14eae337ae22c5bcc1e3758888d5
Signed-off-by: Kyle Carberry <kyle@carberry.com>
1 year ago
Irbe Krumina a15ff1bade
cmd/k8s-operator,k8s-operator/sessionrecording: support recording kubectl exec sessions over WebSockets (#12947)
cmd/k8s-operator,k8s-operator/sessionrecording: support recording WebSocket sessions

Kubernetes currently supports two streaming protocols, SPDY and WebSockets.
WebSockets are replacing SPDY, see
https://github.com/kubernetes/enhancements/issues/4006.
We were currently only supporting SPDY, erroring out if session
was not SPDY and relying on the kube's built-in SPDY fallback.

This PR:

- adds support for parsing contents of 'kubectl exec' sessions streamed
over WebSockets

- adds logic to distinguish 'kubectl exec' requests for a SPDY/WebSockets
sessions and call the relevant handler

Updates tailscale/corp#19821

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
Co-authored-by: Tom Proctor <tomhjp@users.noreply.github.com>
1 year ago