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ceph-csi/internal/util/httpserver.go

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package util
import (
"net"
"net/http"
"net/http/pprof"
"net/url"
runtime_pprof "runtime/pprof"
"strconv"
"github.com/ceph/ceph-csi/internal/util/log"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
// ValidateURL validates the url.
func ValidateURL(c *Config) error {
_, err := url.Parse(c.MetricsPath)
return err
}
// StartMetricsServer starts http server.
func StartMetricsServer(c *Config) {
addr := net.JoinHostPort(c.MetricsIP, strconv.Itoa(c.MetricsPort))
http.Handle(c.MetricsPath, promhttp.Handler())
err := http.ListenAndServe(addr, nil)
if err != nil {
log.FatalLogMsg("failed to listen on address %v: %s", addr, err)
}
}
func addPath(name string, handler http.Handler) {
http.Handle(name, handler)
log.DebugLogMsg("DEBUG: registered profiling handler on /debug/pprof/%s\n", name)
}
// EnableProfiling enables golang profiling.
func EnableProfiling() {
for _, profile := range runtime_pprof.Profiles() {
name := profile.Name()
handler := pprof.Handler(name)
addPath(name, handler)
}
// static profiles as listed in net/http/pprof/pprof.go:init()
addPath("cmdline", http.HandlerFunc(pprof.Cmdline))
addPath("profile", http.HandlerFunc(pprof.Profile))
addPath("symbol", http.HandlerFunc(pprof.Symbol))
addPath("trace", http.HandlerFunc(pprof.Trace))
}