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health, ipn/ipnlocal: add metrics for various client events (#15828)

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updates tailscale/corp#28092

Adds metrics for various client events:
* Enabling an exit node
* Enabling a mullvad exit node
* Enabling a preferred exit node
* Setting WantRunning to true/false
* Requesting a bug report ID
* Profile counts
* Profile deletions
* Captive portal detection

Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
This commit is contained in:
Jonathan Nobels
2025-05-09 12:03:22 -04:00
committed by GitHub
parent b1c2860485
commit 7d6d2b4c50
6 changed files with 158 additions and 9 deletions
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17
ipn/localapi/localapi.go
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@@ -62,6 +62,13 @@ import (
"tailscale.com/wgengine/magicsock"
)
var (
metricInvalidRequests = clientmetric.NewCounter("localapi_invalid_requests")
metricDebugMetricsCalls = clientmetric.NewCounter("localapi_debugmetric_requests")
metricUserMetricsCalls = clientmetric.NewCounter("localapi_usermetric_requests")
metricBugReportRequests = clientmetric.NewCounter("localapi_bugreport_requests")
)
type LocalAPIHandler func(*Handler, http.ResponseWriter, *http.Request)
// handler is the set of LocalAPI handlers, keyed by the part of the
@@ -424,6 +431,8 @@ func (h *Handler) serveBugReport(w http.ResponseWriter, r *http.Request) {
// NOTE(andrew): if we have anything else we want to do while recording
// a bugreport, we can add it here.
metricBugReportRequests.Add(1)
// Read from the client; this will also return when the client closes
// the connection.
var buf [1]byte
@@ -2623,14 +2632,6 @@ func (h *Handler) serveShares(w http.ResponseWriter, r *http.Request) {
}
}
var (
metricInvalidRequests = clientmetric.NewCounter("localapi_invalid_requests")
// User-visible LocalAPI endpoints.
metricDebugMetricsCalls = clientmetric.NewCounter("localapi_debugmetric_requests")
metricUserMetricsCalls = clientmetric.NewCounter("localapi_usermetric_requests")
)
// serveSuggestExitNode serves a POST endpoint for returning a suggested exit node.
func (h *Handler) serveSuggestExitNode(w http.ResponseWriter, r *http.Request) {
if r.Method != "GET" {