It has nothing to do with logtail and is confusing named like that.
Updates #cleanup
Updates #17323
Change-Id: Idd34587ba186a2416725f72ffc4c5778b0b9db4a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
PR #17258 extracted `derp.Server` into `derp/derpserver.Server`.
This followup patch adds the following cleanups:
1. Rename `derp_server*.go` files to `derpserver*.go` to match
the package name.
2. Rename the `derpserver.NewServer` constructor to `derpserver.New`
to reduce stuttering.
3. Remove the unnecessary `derpserver.Conn` type alias.
Updates #17257
Updates #cleanup
Signed-off-by: Simon Law <sfllaw@tailscale.com>
This exports a number of things from the derp (generic + client) package
to be used by the new derpserver package, as now used by cmd/derper.
And then enough other misc changes to lock in that cmd/tailscaled can
be configured to not bring in tailscale.com/client/local. (The webclient
in particular, even when disabled, was bringing it in, so that's now fixed)
Fixes#17257
Change-Id: I88b6c7958643fb54f386dd900bddf73d2d4d96d5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
It was a bit confusing that provided history did not include the
current probe results.
Updates tailscale/corp#20583
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
Update the runall handler to be more generic with an
exclude param to exclude multiple probes as the requesters
definition.
Updates tailscale/corp#27370
Signed-off-by: Mike O'Driscoll <mikeo@tailscale.com>
Add a Run all probes handler that executes all
probes except those that are continuous or the derpmap
probe.
This is leveraged by other tooling to confirm DERP
stability after a deploy.
Updates tailscale/corp#27370
Signed-off-by: Mike O'Driscoll <mikeo@tailscale.com>
Record dropped packets as soon as they time out, rather than after tx
record queues spill over, this will more accurately capture small
amounts of packet loss in a timely fashion.
Updates tailscale/corp#24522
Signed-off-by: James Tucker <james@tailscale.com>
Add mesh key support to derpprobe for
probing derpers with verify set to true.
Move MeshKey checking to central point for code reuse.
Fix a bad error fmt msg.
Fixestailscale/corp#27294Fixestailscale/corp#25756
Signed-off-by: Mike O'Driscoll <mikeo@tailscale.com>
Use of the httptest client doesn't render header ordering
as expected.
Use http.DefaultClient for the test to ensure that
the header ordering test is valid.
Updates tailscale/corp#27370
Signed-off-by: Mike O'Driscoll <mikeo@tailscale.com>
Content-type was responding as test/plain for probes
accepting application/json. Set content type header
before setting the response code to correct this.
Updates tailscale/corp#27370
Signed-off-by: Mike O'Driscoll <mikeo@tailscale.com>
OCSP has been removed from the LE certs.
Use CRL verification instead.
If a cert provides a CRL, check its revocation
status, if no CRL is provided and otherwise
is valid, pass the check.
Fixes#15912
Signed-off-by: Mike O'Driscoll <mikeo@tailscale.com>
Co-authored-by: Simon Law <sfllaw@tailscale.com>
Add a label which differentiates the address family
for STUN checks.
Also initialize the derpprobe_attempts_total and
derpprobe_seconds_total metrics by adding 0 for
the alternate fail/ok case.
Updates tailscale/corp#27249
Signed-off-by: Mike O'Driscoll <mikeo@tailscale.com>
Some probes might need to run for longer than their scheduling interval,
so this change relaxes the 1-at-a-time restriction, allowing us to
configure probe concurrency and timeout separately. The default values
remain the same (concurrency of 1; timeout of 80% of interval).
Updates tailscale/corp#25479
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
If unable to accept a connection from the bandwidth probe listener,
return from the goroutine immediately since the accepted connection
will be nil.
Updates tailscale/corp#25958
Signed-off-by: Percy Wegmann <percy@tailscale.com>
This will enable Prometheus queries to look at the bandwidth over time windows,
for example 'increase(derp_bw_bytes_total)[1h] / increase(derp_bw_transfer_time_seconds_total)[1h]'.
Fixes commit a51672cafd.
Updates tailscale/corp#25503
Signed-off-by: Percy Wegmann <percy@tailscale.com>
This will enable Prometheus queries to look at the bandwidth over time windows,
for example 'increase(derp_bw_bytes_total)[1h] / increase(derp_bw_transfer_time_seconds_total)[1h]'.
Updates tailscale/corp#25503
Signed-off-by: Percy Wegmann <percy@tailscale.com>
This new type of probe sends DERP packets sized similarly to CallMeMaybe packets
at a rate of 10 packets per second. It records the round-trip times in a Prometheus
histogram. It also keeps track of how many packets are dropped. Packets that fail to
arrive within 5 seconds are considered dropped.
Updates tailscale/corp#24522
Signed-off-by: Percy Wegmann <percy@tailscale.com>
Make dev-mode DERP probes work without TLS. Properly dial port `3340`
when not using HTTPS when dialing nodes in `derphttp_client`. Skip
verifying TLS state in `newConn` if we are not running a prober.
Updates tailscale/corp#24635
Signed-off-by: Percy Wegmann <percy@tailscale.com>
Co-authored-by: Percy Wegmann <percy@tailscale.com>
This change adds an HTTP handler with a table showing a list of all
probes, their status, and a button that allows triggering a specific
probe.
Updates tailscale/corp#20583
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
- Keep track of the last 10 probe results and successful probe
latencies;
- Add an HTTP handler that triggers a given probe by name and returns it
result as a plaintext HTML page, showing recent probe results as a
baseline
Updates tailscale/corp#20583
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
To make it easier for people to monitor their custom DERP fleet.
Updates tailscale/corp#20654
Change-Id: Id8af22936a6d893cc7b6186d298ab794a2672524
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The goal is to move more network state accessors to netmon.Monitor
where they can be cheaper/cached. But first (this change and others)
we need to make sure the one netmon.Monitor is plumbed everywhere.
Some notable bits:
* tsdial.NewDialer is added, taking a now-required netmon
* because a tsdial.Dialer always has a netmon, anything taking both
a Dialer and a NetMon is now redundant; take only the Dialer and
get the NetMon from that if/when needed.
* netmon.NewStatic is added, primarily for tests
Updates tailscale/corp#10910
Updates tailscale/corp#18960
Updates #7967
Updates #3299
Change-Id: I877f9cb87618c4eb037cee098241d18da9c01691
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
- Wrap each prober function into a probe class that allows associating
metric labels and custom metrics with a given probe;
- Make sure all existing probe classes set a `class` metric label;
- Move bandwidth probe size from being a metric label to a separate
gauge metric; this will make it possible to use it to calculate
average used bandwidth using a PromQL query;
- Also export transfer time for the bandwidth prober (more accurate than
the total probe time, since it excludes connection establishment
time).
Updates tailscale/corp#17912
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
So that we can e.g. check TLS on multiple ports for a given IP.
Updates tailscale/corp#16367
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I81d840a4c88138de1cbb2032b917741c009470e6
This allows us to check all IP addresses (and address families) for a
given DNS hostname while dynamically discovering new IPs and removing
old ones as they're no longer valid.
Also add a testable example that demonstrates how to use it.
Alternative to #11610
Updates tailscale/corp#16367
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I6d6f39bafc30e6dfcf6708185d09faee2a374599
So we can probe load balancers by their unique DNS name but without
asking for that cert name.
Updates tailscale/corp#13050
Change-Id: Ie4c0a2f951328df64281ed1602b4e624e3c8cf2e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
