tailscale

Commit Graph

Author	SHA1	Message	Date
Denton Gentry	755396d6fe	tsweb: add Float expvar support in varz We make assertions about stringification of 0.5. IEEE floating point and all reasonable proprietary floating point can exactly represent 0.5. We don't make assertions about other floating point values, too brittle in tests. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	2 years ago
Tom DNetto	32c6823cf5	tsweb: implement interceptor for error page presentation Updates https://github.com/tailscale/corp/issues/5605 Signed-off-by: Tom DNetto <tom@tailscale.com>	2 years ago
Brad Fitzpatrick	0df3b76c25	tsweb: fix Port80Handler redirect to https with FQDN unset Fixes the current http://pkgs.tailscale.com/ redirect to https:/// as that server doesn't configure the Port80Handler.FQDN field. Change-Id: Iff56e6127a46c306ca97738d91b217bcab32a582 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	2 years ago
David Anderson	e1c1d47991	tsweb: memoize the string forms of HTTP response codes. Saves 1-2 allocs per HTTP request after warmup, thanks to avoiding strconv and fmt. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	c48513b2be	tsweb: support recording unabridged HTTP status codes as well. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	2d1849a7b9	tsweb: remove JSONHandlerFunc It's unused and we've decided it's not what we want. Change-Id: I425a0104e8869630b498a0adfd0f455876d6f92b Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	7b4960316b	tsweb: add PrometheusVar, for vars that want to output varz themselves. This enables the infrequent use of more complex Prometheus types, such as timeseries with high/irregular label cardinality, without needing to discover and implement generic abstracted type like LabelMap for each one. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Maisem Ali	309c0a13a5	tsweb: add FQDN to Port80Handler to allow HTTPS redirects When the request comes in say over http://mon, the current implementation would rewrite it https://mon which causes the cert validation to fail. This PR keeps the existing behavior intact but also allows passing in a FQDN to the handler to reroute to the correct hostname. Related to https://github.com/tailscale/tailscale/pull/4208#pullrequestreview-913832340 Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Josh Bleecher Snyder	0868329936	all: use any instead of interface{} My favorite part of generics. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	3 years ago
Brad Fitzpatrick	61ee72940c	all: use Go 1.18's strings.Cut More remain. Change-Id: I6ec562cc1f687600758deae1c9d7dbd0d04004cb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	41fd4eab5c	envknob: add new package for all the strconv.ParseBool(os.Getenv(..)) A new package can also later record/report which knobs are checked and set. It also makes the code cleaner & easier to grep for env knobs. Change-Id: Id8a123ab7539f1fadbd27e0cbeac79c2e4f09751 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
slowy07	ac0353e982	fix: typo spelling grammar Signed-off-by: slowy07 <slowy.arfy@gmail.com>	3 years ago
Brad Fitzpatrick	51976ab3a2	tsweb: add vars for unix process start time and version To be scraped in the Go expvar JSON format, as a string is involved. For a future tool to record when processes restarted exactly, and at what version. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	c6740da624	tsweb: make VarzHandler support untyped expvar.Maps for compatibility Updates #2635 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	7c7eb8094b	tsweb: make VarzHandler support expvar.Funcs returning ints/floats Updates #2635	3 years ago
Brad Fitzpatrick	5aba620fb9	tsweb: make VarzHandler capable of walking structs with reflect To be used by control, per linked bug's plan. Updates #2635 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	3700cf9ea4	tsweb: also support LabelMaps from expvar.Map, without metrics We want to use tsweb to format Prometheus-style metrics from our temporary golang.org/x/net/http2 fork, but we don't want http2 to depend on the tailscale.com module to use the concrete type tailscale.com/metrics.LabelMap. Instead, let a expvar.Map be used instead of it's annotated sufficiently in its name. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	5f45d8f8e6	tsweb: add VarzHandler tests Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
julianknodt	3377089583	tsweb: add float64 to logged metrics A previously added metric which was float64 was being ignored in tsweb, because it previously only accepted int64 and ints. It can be handled in the same way as ints. Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago
David Anderson	0022c3d2e2	tsweb: replace NewMux with a more flexible DebugHandler. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	48c25fa36f	tsweb: fold StdHandlerOpts and StdHandler200s with StdHandler. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	72343fbbec	tsweb: register expvars once at startup. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Josh Bleecher Snyder	516e8a4838	tsweb: add num_goroutines expvar Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Anderson	692a011b54	net/interfaces: remove IsTailscaleIP, make callers use tsaddr. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Brad Fitzpatrick	017dcd520f	tsweb: export VarzHandler	4 years ago
David Anderson	57cd7738c2	tsweb: add an endpoint to manually trigger a GC. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Josh Bleecher Snyder	3b46655dbb	tsweb: add StatusCodeCounters to HandlerOptions This lets servers using tsweb register expvars that will track the number of requests ending in 200s/300s/400s/500s. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
Josh Bleecher Snyder	e98f2c57d6	tsweb: add StdHandlerOpts that accepts an options struct I'm about to add yet another StdHandler option. Time to refactor. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>	4 years ago
David Crawshaw	815bf017fc	tsweb: when unwrapping HTTPError, record the user-facing message also in the log There's often some useful piece of information in there not already repeated in the internal error. Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	4 years ago
David Anderson	eccae0cd0c	tsweb: add ReturnHandlerFunc. Signed-off-by: David Anderson <danderson@tailscale.com>	5 years ago
Brad Fitzpatrick	64334143a1	tsweb: rename Handler to ReturnHandler The name's been bugging me for a long time. I liked neither the overlap between tsweb.Handler and http.Handler, nor the name "ServeHTTPErr" which sounds like it's an error being returned, like it's an error handler and not sometimes a happy path. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
David Anderson	af3a9dfad6	tsweb: add a StdHandler that doesn't log 200 responses. Signed-off-by: David Anderson <dave@natulte.net>	5 years ago
Brad Fitzpatrick	2863e49db9	tsweb: don't flush, treat no-op Handler as 200, like Go Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
David Anderson	2c2dff9559	tsweb: don't panic if we get a tsweb.Error with no embedded error. It's technically weird to return a tsweb.Error with no child err, but it's a sensible thing to want to do, and we shouldn't panic if it happens. Signed-off-by: David Anderson <dave@natulte.net>	5 years ago
David Anderson	12a6626a94	tsweb: use a ResponseWriter wrapper to log more accurately. Also adds tests, because the logging handler is acquiring a fair number of branches. Signed-off-by: David Anderson <dave@natulte.net>	5 years ago
Brad Fitzpatrick	6de37f4cc0	tsweb: move some comments, add a TODO	5 years ago
David Anderson	df4636567f	tsweb: adjust names and docs of the "handler with errors" functions. Signed-off-by: David Anderson <dave@natulte.net>	5 years ago
David Anderson	98eceae55e	tsweb: add a Handler type. Handler is like http.Handler, but returns errors. ErrHandler converts back to an http.Handler, with added error handling and logging. Signed-off-by: David Anderson <dave@natulte.net>	5 years ago
Brad Fitzpatrick	5c1e443d34	wgengine/monitor: don't call LinkChange when interfaces look unchanged Basically, don't trust the OS-level link monitor to only tell you interesting things. Sanity check it. Also, move the interfaces package into the net directory now that we have it.	5 years ago
Brad Fitzpatrick	a9cd8f31de	tsweb: don't double import expvar; appease staticcheck	5 years ago
Brad Fitzpatrick	890f5dff40	tsweb: export runtime.MemStats var in Prometheus format	5 years ago
Brad Fitzpatrick	61f3fda405	tsweb: let expvar.Ints be gauges too	5 years ago
Brad Fitzpatrick	57de94c7aa	tsweb: add /debug/ access via &debugkey + TS_DEBUG_KEY_PATH	5 years ago
David Anderson	d580157921	tsweb: quote label values to comply with Prometheus format.	5 years ago
David Anderson	f192c05413	metrics: add a LabelMap type for variables with 1 label dimension. This lets us publish sets of vars that are breakdowns along one dimension in a format that Prometheus and Grafana natively know how to do useful things with. Signed-off-by: David Anderson <dave@natulte.net>	5 years ago
Brad Fitzpatrick	e371520cc5	tsweb, derp: add expvar http.Handler for Prometheus's format And add some opinions. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago
Brad Fitzpatrick	824f825552	tsweb, cmd/derper: move common web/debug stuff from derper to new tsweb Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	5 years ago

47 Commits (92357a54ec8fd8e39a71281d0c882ee11750feeb)