Commit Graph

117 Commits (a20e46a80f0355a7d5dd64454c8954d69f6854e6)

Author SHA1 Message Date
David Anderson 5d995d9d6b tsweb: add a test case for nil child errors in tsweb.Error.
Signed-off-by: David Anderson <dave@natulte.net>
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 c706731dc7 tsweb: add copyright header
And fix an unlikely but potential crash.
5 years ago
David Anderson a567c56971 tsweb: pull in tlog data structures from corp repo.
This is a prelude to having logging helpers in tsweb.

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