this commit reduced the amount of data sent in the metrics
data integration test from 10MB to 1MB.
On various machines 10MB was quite flaky, while 1MB has not failed
once on 10000 runs.
Updates #13420
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
Re-use a pre-allocated bytes.Buffer struct and
shallow the copy the result of bytes.NewBuffer into it
to avoid allocating the struct.
Note that we're only reusing the bytes.Buffer struct itself
and not the underling []byte temporarily stored within it.
Updates #cleanup
Updates tailscale/corp#18514
Updates golang/go#67004
Signed-off-by: Joe Tsai <joetsai@digital-static.net>
In https://github.com/tailscale/tailscale/pull/13726 we added logic to
`checkExitNodePrefsLocked` to error out on platforms where using an
exit node is unsupported in order to give users more obvious feedback
than having this silently fail downstream.
The above change neglected to properly check whether the device in
question was actually trying to use an exit node when doing the check
and was incorrectly returning an error on any calls to
`checkExitNodePrefsLocked` on platforms where using an exit node is not
supported as a result.
This change remedies this by adding a check to see whether the device is
attempting to use an exit node before doing the `CanUseExitNode` check.
Updates https://github.com/tailscale/corp/issues/24835
Signed-off-by: Mario Minardi <mario@tailscale.com>
I was hoping we'd catch an example input quickly, but the reporter had
rebooted their machine and it is no longer exhibiting the behavior. As
such this code may be sticking around quite a bit longer and we might
encounter other errors, so include the panic in the log entry.
Updates #14201
Updates #14202
Updates golang/go#70528
Signed-off-by: James Tucker <james@tailscale.com>
We add a policy definition for the AllowedSuggestedExitNodes syspolicy setting, allowing admins
to configure a list of exit node IDs to be used as a pool for automatic suggested exit node selection.
We update definitions for policy settings configurable on both a per-user and per-machine basis,
such as UI customizations, to specify class="Both".
Lastly, we update the help text for existing policy definitions to include a link to the KB article
as the last line instead of in the first paragraph.
Updates #12687
Updates tailscale/corp#19681
Signed-off-by: Nick Khyl <nickk@tailscale.com>
In this PR, we update LocalBackend to rebuild the set of allowed suggested exit nodes whenever
the AllowedSuggestedExitNodes syspolicy setting changes. Additionally, we request a new suggested
exit node when this occurs, enabling its use if the ExitNodeID syspolicy setting is set to auto:any.
Updates #12687
Signed-off-by: Nick Khyl <nickk@tailscale.com>
This PR removes the sync.Once wrapper around retrieving the MachineCertificateSubject policy
setting value, ensuring the most recent version is always used if it changes after the service starts.
Although this policy setting is used by a very limited number of customers, recent support escalations have highlighted issues caused by outdated or incorrect policy values being applied.
Updates #12687
Signed-off-by: Nick Khyl <nickk@tailscale.com>
In this PR, we update ipnlocal.NewLocalBackend to subscribe to policy change notifications
and reapply syspolicy settings to the current profile's ipn.Prefs whenever a change occurs.
Updates #12687
Signed-off-by: Nick Khyl <nickk@tailscale.com>
This moves code that handles ExitNodeID/ExitNodeIP syspolicy settings
from (*LocalBackend).setExitNodeID to applySysPolicy.
Updates #12687
Signed-off-by: Nick Khyl <nickk@tailscale.com>
This updates the syspolicy.LogSCMInteractions check to run at the time of an interaction,
just before logging a message, instead of during service startup. This ensures the most
recent policy setting is used if it has changed since the service started.
Updates #12687
Signed-off-by: Nick Khyl <nickk@tailscale.com>
In this PR, we move the syspolicy.FlushDNSOnSessionUnlock check from service startup
to when a session change notification is received. This ensures that the most recent policy
setting value is used if it has changed since the service started.
We also plan to handle session change notifications for unrelated reasons
and need to decouple notification subscriptions from DNS anyway.
Updates #12687
Updates tailscale/corp#18342
Signed-off-by: Nick Khyl <nickk@tailscale.com>
These delays determine how soon syspolicy change callbacks are invoked after a policy setting is updated
in a policy source. For tests, we shorten these delays to minimize unnecessary wait times. This adjustment
only affects tests that subscribe to policy change notifications and modify policy settings after they have
already been set. Initial policy settings are always available immediately without delay.
Updates #12687
Signed-off-by: Nick Khyl <nickk@tailscale.com>
We have several places where LocalBackend instances are created for testing, but they are rarely shut down
when the tests that created them exit.
In this PR, we update newTestLocalBackend and similar functions to use testing.TB.Cleanup(lb.Shutdown)
to ensure LocalBackend instances are properly shut down during test cleanup.
Updates #12687
Signed-off-by: Nick Khyl <nickk@tailscale.com>
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>
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>
https://go.dev/wiki/CodeReviewComments#useful-test-failures
(Previously it was using subtests with names including the input, but
once those went away, there was no context left)
Updates #14169
Change-Id: Ib217028183a3d001fe4aee58f2edb746b7b3aa88
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Otherwise we'll see a panic if we hit the dnsfallback code and try to
call NewDialer with a nil NetMon.
Updates #14161
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I81c6e72376599b341cb58c37134c2a948b97cf5f
So we can locate them in logs more easily.
Updates tailscale/corp#24721
Change-Id: Ia766c75608050dde7edc99835979a6e9bb328df2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Extracts tsaddr.IsTailscaleIPv4 out of tsaddr.IsTailscaleIP.
This will allow for checking valid Tailscale assigned IPv4 addresses
without checking IPv6 addresses.
Updates #14168
Updates tailscale/corp#24620
Signed-off-by: James Scott <jim@tailscale.com>
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>
Initial support for SrcCaps was added in 5ec01bf but it was not actually
working without this.
Updates #12542
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
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>
I merged 5cae7c51bf (removing Notify.BackendLogID) and 93db503565
(adding another reference to Notify.BackendLogID) that didn't have merge
conflicts, but didn't compile together.
This removes the new reference, fixing the build.
Updates #14129
Change-Id: I9bb68efd977342ea8822e525d656817235039a66
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Limit spamming GUIs with boring updates to once in 3 seconds, unless
the notification is relatively interesting and the GUI should update
immediately.
This is basically @barnstar's #14119 but with the logic moved to be
per-watch-session (since the bit is per session), rather than
globally. And this distinguishes notable Notify messages (such as
state changes) and makes them send immediately.
Updates tailscale/corp#24553
Change-Id: I79cac52cce85280ce351e65e76ea11e107b00b49
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The v2 endpoint supports HTTP/2 bidirectional streaming and acks for
received bytes. This is used to detect when a recorder disappears to
more quickly terminate the session.
Updates https://github.com/tailscale/corp/issues/24023
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
* ipn,tailcfg: add VIPService struct and c2n to fetch them from client
Updates tailscale/corp#22743, tailscale/corp#22955
Signed-off-by: Naman Sood <mail@nsood.in>
* more review fixes
Signed-off-by: Naman Sood <mail@nsood.in>
* don't mention PeerCapabilityServicesDestination since it's currently unused
Signed-off-by: Naman Sood <mail@nsood.in>
---------
Signed-off-by: Naman Sood <mail@nsood.in>
Back in the day this testcontrol package only spoke the
nacl-boxed-based control protocol, which used this.
Then we added ts2021, which didn't, but still sometimes used it.
Then we removed the old mode and didn't remove this parameter
in 2409661a0d.
Updates #11585
Change-Id: Ifd290bd7dbbb52b681b3599786437a15bc98b6a5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Previously we required the program to be running in a test or have
TS_CONTROL_IS_PLAINTEXT_HTTP before we disabled its https fallback
on "http" schema control URLs to localhost with ports.
But nobody accidentally does all three of "http", explicit port
number, localhost and doesn't mean it. And when they mean it, they're
testing a localhost dev control server (like I was) and don't want 443
getting involved.
As of the changes for #13597, this became more annoying in that we
were trying to use a port which wasn't even available.
Updates #13597
Change-Id: Icd00bca56043d2da58ab31de7aa05a3b269c490f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Kristoffer Dalby
Joe Tsai
Anton Tolchanov
Andrew Dunham
Nick Khyl
Mario Minardi
James Tucker
Irbe Krumina
Tom Proctor
Andrea Gottardo
Brad Fitzpatrick
James Scott
James Stocker
Aaron Klotz
License Updater
Andrew Lytvynov
Naman Sood
Percy Wegmann