Kiu/VictoriaMetrics
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all: add support for specifying multiple -httpListenAddr options

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This commit is contained in:
Aliaksandr Valialkin 2024-02-09 03:15:04 +02:00
parent b161e889b5
commit ae8a867924
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GPG Key ID: 52C003EE2BCDB9EB
14 changed files with 141 additions and 80 deletions
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16
app/victoria-logs/main.go
View File

@ -21,8 +21,8 @@ import (
)
var (
httpListenAddr = flag.String("httpListenAddr", ":9428", "TCP address to listen for http connections. See also -httpListenAddr.useProxyProtocol")
useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
httpListenAddrs = flagutil.NewArrayString("httpListenAddr", "TCP address to listen for incoming http requests. See also -httpListenAddr.useProxyProtocol")
useProxyProtocol = flagutil.NewArrayBool("httpListenAddr.useProxyProtocol", "Whether to use proxy protocol for connections accepted at the given -httpListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
)
@ -35,14 +35,18 @@ func main() {
buildinfo.Init()
logger.Init()
logger.Infof("starting VictoriaLogs at %q...", *httpListenAddr)
listenAddrs := *httpListenAddrs
if len(listenAddrs) == 0 {
listenAddrs = []string{":9428"}
}
logger.Infof("starting VictoriaLogs at %q...", listenAddrs)
startTime := time.Now()
vlstorage.Init()
vlselect.Init()
vlinsert.Init()
go httpserver.Serve(*httpListenAddr, *useProxyProtocol, requestHandler)
go httpserver.Serve(listenAddrs, useProxyProtocol, requestHandler)
logger.Infof("started VictoriaLogs in %.3f seconds; see https://docs.victoriametrics.com/VictoriaLogs/", time.Since(startTime).Seconds())
pushmetrics.Init()
@ -50,9 +54,9 @@ func main() {
logger.Infof("received signal %s", sig)
pushmetrics.Stop()
logger.Infof("gracefully shutting down webservice at %q", *httpListenAddr)
logger.Infof("gracefully shutting down webservice at %q", listenAddrs)
startTime = time.Now()
if err := httpserver.Stop(*httpListenAddr); err != nil {
if err := httpserver.Stop(listenAddrs); err != nil {
logger.Fatalf("cannot stop the webservice: %s", err)
}
logger.Infof("successfully shut down the webservice in %.3f seconds", time.Since(startTime).Seconds())

16
app/victoria-metrics/main.go
View File

@ -26,8 +26,8 @@ import (
)
var (
httpListenAddr = flag.String("httpListenAddr", ":8428", "TCP address to listen for http connections. See also -tls and -httpListenAddr.useProxyProtocol")
useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
httpListenAddrs = flagutil.NewArrayString("httpListenAddr", "TCP addresses to listen for incoming http requests. See also -tls and -httpListenAddr.useProxyProtocol")
useProxyProtocol = flagutil.NewArrayBool("httpListenAddr.useProxyProtocol", "Whether to use proxy protocol for connections accepted at the corresponding -httpListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
minScrapeInterval = flag.Duration("dedup.minScrapeInterval", 0, "Leave only the last sample in every time series per each discrete interval "+
@ -66,7 +66,11 @@ func main() {
return
}
logger.Infof("starting VictoriaMetrics at %q...", *httpListenAddr)
listenAddrs := *httpListenAddrs
if len(listenAddrs) == 0 {
listenAddrs = []string{":8428"}
}
logger.Infof("starting VictoriaMetrics at %q...", listenAddrs)
startTime := time.Now()
storage.SetDedupInterval(*minScrapeInterval)
storage.SetDataFlushInterval(*inmemoryDataFlushInterval)
@ -76,7 +80,7 @@ func main() {
startSelfScraper()
go httpserver.Serve(*httpListenAddr, *useProxyProtocol, requestHandler)
go httpserver.Serve(listenAddrs, useProxyProtocol, requestHandler)
logger.Infof("started VictoriaMetrics in %.3f seconds", time.Since(startTime).Seconds())
pushmetrics.Init()
@ -86,9 +90,9 @@ func main() {
stopSelfScraper()
logger.Infof("gracefully shutting down webservice at %q", *httpListenAddr)
logger.Infof("gracefully shutting down webservice at %q", listenAddrs)
startTime = time.Now()
if err := httpserver.Stop(*httpListenAddr); err != nil {
if err := httpserver.Stop(listenAddrs); err != nil {
logger.Fatalf("cannot stop the webservice: %s", err)
}
logger.Infof("successfully shut down the webservice in %.3f seconds", time.Since(startTime).Seconds())

4
app/victoria-metrics/main_test.go
View File

@ -180,7 +180,7 @@ func setUp() {
vmstorage.Init(promql.ResetRollupResultCacheIfNeeded)
vmselect.Init()
vminsert.Init()
go httpserver.Serve(*httpListenAddr, false, requestHandler)
go httpserver.Serve(*httpListenAddrs, useProxyProtocol, requestHandler)
readyStorageCheckFunc := func() bool {
resp, err := http.Get(testHealthHTTPPath)
if err != nil {
@ -226,7 +226,7 @@ func waitFor(timeout time.Duration, f func() bool) error {
}
func tearDown() {
if err := httpserver.Stop(*httpListenAddr); err != nil {
if err := httpserver.Stop(*httpListenAddrs); err != nil {
log.Printf("cannot stop the webservice: %s", err)
}
vminsert.Stop()

24
app/vmagent/main.go
View File

@ -46,10 +46,10 @@ import (
)
var (
httpListenAddr = flag.String("httpListenAddr", ":8429", "TCP address to listen for http connections. "+
httpListenAddrs = flagutil.NewArrayString("httpListenAddr", "TCP address to listen for incoming http requests. "+
"Set this flag to empty value in order to disable listening on any port. This mode may be useful for running multiple vmagent instances on the same server. "+
"Note that /targets and /metrics pages aren't available if -httpListenAddr=''. See also -tls and -httpListenAddr.useProxyProtocol")
useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
useProxyProtocol = flagutil.NewArrayBool("httpListenAddr.useProxyProtocol", "Whether to use proxy protocol for connections accepted at the corresponding -httpListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
influxListenAddr = flag.String("influxListenAddr", "", "TCP and UDP address to listen for InfluxDB line protocol data. Usually :8089 must be set. Doesn't work if empty. "+
@ -120,7 +120,11 @@ func main() {
return
}
logger.Infof("starting vmagent at %q...", *httpListenAddr)
listenAddrs := *httpListenAddrs
if len(listenAddrs) == 0 {
listenAddrs = []string{":8429"}
}
logger.Infof("starting vmagent at %q...", listenAddrs)
startTime := time.Now()
remotewrite.Init()
common.StartUnmarshalWorkers()
@ -143,9 +147,7 @@ func main() {
promscrape.Init(remotewrite.PushDropSamplesOnFailure)
if len(*httpListenAddr) > 0 {
go httpserver.Serve(*httpListenAddr, *useProxyProtocol, requestHandler)
}
go httpserver.Serve(listenAddrs, useProxyProtocol, requestHandler)
logger.Infof("started vmagent in %.3f seconds", time.Since(startTime).Seconds())
pushmetrics.Init()
@ -154,13 +156,11 @@ func main() {
pushmetrics.Stop()
startTime = time.Now()
if len(*httpListenAddr) > 0 {
logger.Infof("gracefully shutting down webservice at %q", *httpListenAddr)
if err := httpserver.Stop(*httpListenAddr); err != nil {
logger.Fatalf("cannot stop the webservice: %s", err)
}
logger.Infof("successfully shut down the webservice in %.3f seconds", time.Since(startTime).Seconds())
logger.Infof("gracefully shutting down webservice at %q", listenAddrs)
if err := httpserver.Stop(listenAddrs); err != nil {
logger.Fatalf("cannot stop the webservice: %s", err)
}
logger.Infof("successfully shut down the webservice in %.3f seconds", time.Since(startTime).Seconds())
promscrape.Stop()

6
app/vmalert-tool/unittest/unittest.go
View File

@ -25,6 +25,7 @@ import (
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/prometheus"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmselect/promql"
"github.com/VictoriaMetrics/VictoriaMetrics/app/vmstorage"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/fs"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/logger"
@ -184,7 +185,8 @@ func processFlags() {
func setUp() {
vmstorage.Init(promql.ResetRollupResultCacheIfNeeded)
go httpserver.Serve(httpListenAddr, false, func(w http.ResponseWriter, r *http.Request) bool {
var ab flagutil.ArrayBool
go httpserver.Serve([]string{httpListenAddr}, &ab, func(w http.ResponseWriter, r *http.Request) bool {
switch r.URL.Path {
case "/prometheus/api/v1/query":
if err := prometheus.QueryHandler(nil, time.Now(), w, r); err != nil {
@ -225,7 +227,7 @@ checkCheck:
}
func tearDown() {
if err := httpserver.Stop(httpListenAddr); err != nil {
if err := httpserver.Stop([]string{httpListenAddr}); err != nil {
logger.Errorf("cannot stop the webservice: %s", err)
}
vmstorage.Stop()

24
app/vmalert/main.go
View File

@ -59,8 +59,8 @@ absolute path to all .tpl files in root.
configCheckInterval = flag.Duration("configCheckInterval", 0, "Interval for checking for changes in '-rule' or '-notifier.config' files. "+
"By default, the checking is disabled. Send SIGHUP signal in order to force config check for changes.")
httpListenAddr = flag.String("httpListenAddr", ":8880", "Address to listen for http connections. See also -tls and -httpListenAddr.useProxyProtocol")
useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
httpListenAddrs = flagutil.NewArrayString("httpListenAddr", "Address to listen for incoming http requests. See also -tls and -httpListenAddr.useProxyProtocol")
useProxyProtocol = flagutil.NewArrayBool("httpListenAddr.useProxyProtocol", "Whether to use proxy protocol for connections accepted at the corresponding -httpListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
evaluationInterval = flag.Duration("evaluationInterval", time.Minute, "How often to evaluate the rules")
@ -178,15 +178,19 @@ func main() {
go configReload(ctx, manager, groupsCfg, sighupCh)
listenAddrs := *httpListenAddrs
if len(listenAddrs) == 0 {
listenAddrs = []string{":8880"}
}
rh := &requestHandler{m: manager}
go httpserver.Serve(*httpListenAddr, *useProxyProtocol, rh.handler)
go httpserver.Serve(listenAddrs, useProxyProtocol, rh.handler)
pushmetrics.Init()
sig := procutil.WaitForSigterm()
logger.Infof("service received signal %s", sig)
pushmetrics.Stop()
if err := httpserver.Stop(*httpListenAddr); err != nil {
if err := httpserver.Stop(listenAddrs); err != nil {
logger.Fatalf("cannot stop the webservice: %s", err)
}
cancel()
@ -248,7 +252,13 @@ func newManager(ctx context.Context) (*manager, error) {
func getExternalURL(customURL string) (*url.URL, error) {
if customURL == "" {
// use local hostname as external URL
return getHostnameAsExternalURL(*httpListenAddr, httpserver.IsTLS())
listenAddr := ":8880"
if len(*httpListenAddrs) > 0 {
listenAddr = (*httpListenAddrs)[0]
}
isTLS := httpserver.IsTLS(0)
return getHostnameAsExternalURL(listenAddr, isTLS)
}
u, err := url.Parse(customURL)
if err != nil {
@ -260,13 +270,13 @@ func getExternalURL(customURL string) (*url.URL, error) {
return u, nil
}
func getHostnameAsExternalURL(httpListenAddr string, isSecure bool) (*url.URL, error) {
func getHostnameAsExternalURL(addr string, isSecure bool) (*url.URL, error) {
hname, err := os.Hostname()
if err != nil {
return nil, fmt.Errorf("failed to get hostname: %w", err)
}
port := ""
if ipport := strings.Split(httpListenAddr, ":"); len(ipport) > 1 {
if ipport := strings.Split(addr, ":"); len(ipport) > 1 {
port = ":" + ipport[1]
}
schema := "http://"

16
app/vmauth/main.go
View File

@ -33,8 +33,8 @@ import (
)
var (
httpListenAddr = flag.String("httpListenAddr", ":8427", "TCP address to listen for http connections. See also -tls and -httpListenAddr.useProxyProtocol")
useProxyProtocol = flag.Bool("httpListenAddr.useProxyProtocol", false, "Whether to use proxy protocol for connections accepted at -httpListenAddr . "+
httpListenAddrs = flagutil.NewArrayString("httpListenAddr", "TCP address to listen for incoming http requests. See also -tls and -httpListenAddr.useProxyProtocol")
useProxyProtocol = flagutil.NewArrayBool("httpListenAddr.useProxyProtocol", "Whether to use proxy protocol for connections accepted at the corresponding -httpListenAddr . "+
"See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt . "+
"With enabled proxy protocol http server cannot serve regular /metrics endpoint. Use -pushmetrics.url for metrics pushing")
maxIdleConnsPerBackend = flag.Int("maxIdleConnsPerBackend", 100, "The maximum number of idle connections vmauth can open per each backend host. "+
@ -65,10 +65,14 @@ func main() {
buildinfo.Init()
logger.Init()
logger.Infof("starting vmauth at %q...", *httpListenAddr)
listenAddrs := *httpListenAddrs
if len(listenAddrs) == 0 {
listenAddrs = []string{":8427"}
}
logger.Infof("starting vmauth at %q...", listenAddrs)
startTime := time.Now()
initAuthConfig()
go httpserver.Serve(*httpListenAddr, *useProxyProtocol, requestHandler)
go httpserver.Serve(listenAddrs, useProxyProtocol, requestHandler)
logger.Infof("started vmauth in %.3f seconds", time.Since(startTime).Seconds())
pushmetrics.Init()
@ -77,8 +81,8 @@ func main() {
pushmetrics.Stop()
startTime = time.Now()
logger.Infof("gracefully shutting down webservice at %q", *httpListenAddr)
if err := httpserver.Stop(*httpListenAddr); err != nil {
logger.Infof("gracefully shutting down webservice at %q", listenAddrs)
if err := httpserver.Stop(listenAddrs); err != nil {
logger.Fatalf("cannot stop the webservice: %s", err)
}
logger.Infof("successfully shut down the webservice in %.3f seconds", time.Since(startTime).Seconds())

7
app/vmbackup/main.go
View File

@ -93,7 +93,8 @@ func main() {
}
}
go httpserver.Serve(*httpListenAddr, false, nil)
listenAddrs := []string{*httpListenAddr}
go httpserver.Serve(listenAddrs, nil, nil)
pushmetrics.Init()
err := makeBackup()
@ -104,8 +105,8 @@ func main() {
pushmetrics.Stop()
startTime := time.Now()
logger.Infof("gracefully shutting down http server for metrics at %q", *httpListenAddr)
if err := httpserver.Stop(*httpListenAddr); err != nil {
logger.Infof("gracefully shutting down http server for metrics at %q", listenAddrs)
if err := httpserver.Stop(listenAddrs); err != nil {
logger.Fatalf("cannot stop http server for metrics: %s", err)
}
logger.Infof("successfully shut down http server for metrics in %.3f seconds", time.Since(startTime).Seconds())

7
app/vmrestore/main.go
View File

@ -37,7 +37,8 @@ func main() {
buildinfo.Init()
logger.Init()
go httpserver.Serve(*httpListenAddr, false, nil)
listenAddrs := []string{*httpListenAddr}
go httpserver.Serve(listenAddrs, nil, nil)
srcFS, err := newSrcFS()
if err != nil {
@ -62,8 +63,8 @@ func main() {
dstFS.MustStop()
startTime := time.Now()
logger.Infof("gracefully shutting down http server for metrics at %q", *httpListenAddr)
if err := httpserver.Stop(*httpListenAddr); err != nil {
logger.Infof("gracefully shutting down http server for metrics at %q", listenAddrs)
if err := httpserver.Stop(listenAddrs); err != nil {
logger.Fatalf("cannot stop http server for metrics: %s", err)
}
logger.Infof("successfully shut down http server for metrics in %.3f seconds", time.Since(startTime).Seconds())

1
docs/CHANGELOG.md
View File

@ -31,6 +31,7 @@ The sandbox cluster installation is running under the constant load generated by
* SECURITY: upgrade Go builder from Go1.21.6 to Go1.21.7. See [the list of issues addressed in Go1.21.7](https://github.com/golang/go/issues?q=milestone%3AGo1.21.7+label%3ACherryPickApproved).
* FEATURE: all VictoriaMetrics components: add support for TLS client certificate verification at `-httpListenAddr` (aka [mTLS](https://en.wikipedia.org/wiki/Mutual_authentication)). See [these docs](https://docs.victoriametrics.com/#mtls-protection). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5458).
* FEATURE: all VictoriaMetrics components: add support for accepting http requests over multiple distinct TCP addresses by starting VictoriaMetrics component with multiple `-httpListenAddr` command-line flags. For example, `./victoria-metrics -httpListenAddr=some-host:12345 -httpListenAddr=localhost:8428` starts VictoriaMetrics, which accepts incoming http requests at both `some-host:12345` and `localhost:8428`. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1470).
* FEATURE: all VictoriaMetrics components: add support for empty command flag values in short array notation. For example, `-remoteWrite.sendTimeout=',20s,'` specifies three `-remoteWrite.sendTimeout` values - the first and the last ones are default values (`30s` in this case), while the second one is `20s`.
* FEATURE: all VictoriaMetrics components: do not close connections to `-httpListenAddr` every 2 minutes. This behavior didn't help spreading load among multiple backend servers behind load-balancing TCP proxy. Instead, it could lead to hard-to-debug issues like [this one](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1304#issuecomment-1636997037). If you still need periodically closing client connections because of some reason, then pass the desired timeout to `-http.connTimeout` command-line flag.
* FEATURE: [vmagent](https://docs.victoriametrics.com/vmagent.html) and [single-node VictoriaMetrics](https://docs.victoriametrics.com): add support for data ingestion via [DataDog lambda extension](https://docs.datadoghq.com/serverless/libraries_integrations/extension/) aka `/api/beta/sketches` endpoint. See [these docs](https://docs.victoriametrics.com/#how-to-send-data-from-datadog-agent) and [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3091). Thanks to @AndrewChubatiuk for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5584).

4
lib/flagutil/array.go
View File

@ -101,8 +101,8 @@ func (a *ArrayString) Set(value string) error {
}
func parseArrayValues(s string) []string {
if len(s) == 0 {
return nil
if s == "" {
return []string{""}
}
var values []string
for {

12
lib/flagutil/array_test.go
View File

@ -174,7 +174,7 @@ func TestArrayDuration_Set(t *testing.T) {
t.Fatalf("unexpected values parsed;\ngot\n%q\nwant\n%q", result, expectedResult)
}
}
f("", "")
f("", "42s")
f(`1m`, `1m0s`)
f(`5m,1s,1h`, `5m0s,1s,1h0m0s`)
f(`5m,,1h`, `5m0s,42s,1h0m0s`)
@ -211,7 +211,6 @@ func TestArrayDuration_String(t *testing.T) {
t.Fatalf("unexpected string;\ngot\n%s\nwant\n%s", result, s)
}
}
f("")
f("10s,1m0s")
f("5m0s,1s")
}
@ -237,7 +236,7 @@ func TestArrayBool_Set(t *testing.T) {
t.Fatalf("unexpected values parsed;\ngot\n%v\nwant\n%v", result, expectedResult)
}
}
f("", "")
f("", "false")
f(`true`, `true`)
f(`false,True,False`, `false,true,false`)
f(`1,,False`, `true,false,false`)
@ -273,7 +272,6 @@ func TestArrayBool_String(t *testing.T) {
t.Fatalf("unexpected string;\ngot\n%s\nwant\n%s", result, s)
}
}
f("")
f("true")
f("true,false")
f("false,true")
@ -305,7 +303,7 @@ func TestArrayInt_Set(t *testing.T) {
t.Fatalf("unexpected values;\ngot\n%d\nwant\n%d", values, expectedValues)
}
}
f("", "", nil)
f("", "42", []int{42})
f(`1`, `1`, []int{1})
f(`-2,3,-64`, `-2,3,-64`, []int{-2, 3, -64})
f(`,,-64,`, `42,42,-64,42`, []int{42, 42, -64, 42})
@ -342,7 +340,6 @@ func TestArrayInt_String(t *testing.T) {
t.Fatalf("unexpected string;\ngot\n%s\nwant\n%s", result, s)
}
}
f("")
f("10,1")
f("-5,1,123")
}
@ -371,7 +368,7 @@ func TestArrayBytes_Set(t *testing.T) {
t.Fatalf("unexpected values parsed;\ngot\n%s\nwant\n%s", result, expectedResult)
}
}
f("", "")
f("", "42")
f(`1`, `1`)
f(`-2,3,10kb`, `-2,3,10KB`)
f(`,,10kb`, `42,42,10KB`)
@ -409,7 +406,6 @@ func TestArrayBytes_String(t *testing.T) {
t.Fatalf("unexpected string;\ngot\n%s\nwant\n%s", result, s)
}
}
f("")
f("10.5KiB,1")
f("-5,1,123MB")
}

3
lib/flagutil/dict_test.go
View File

@ -64,7 +64,6 @@ func TestDictIntSetSuccess(t *testing.T) {
}
}
f("")
f("123")
f("-234")
f("foo:123")
@ -107,8 +106,6 @@ func TestDictIntGet(t *testing.T) {
}
}
f("", "", 123, 123)
f("", "foo", 123, 123)
f("foo:42", "", 123, 123)
f("foo:42", "foo", 123, 42)
f("532", "", 123, 532)

81
lib/httpserver/httpserver.go
View File

@ -31,12 +31,14 @@ import (
)
var (
tlsEnable = flag.Bool("tls", false, "Whether to enable TLS for incoming HTTP requests at -httpListenAddr (aka https). -tlsCertFile and -tlsKeyFile must be set if -tls is set. "+
tlsEnable = flagutil.NewArrayBool("tls", "Whether to enable TLS for incoming HTTP requests at the given -httpListenAddr (aka https). -tlsCertFile and -tlsKeyFile must be set if -tls is set. "+
"See also -mtls")
tlsCertFile = flag.String("tlsCertFile", "", "Path to file with TLS certificate if -tls is set. Prefer ECDSA certs instead of RSA certs as RSA certs are slower. The provided certificate file is automatically re-read every second, so it can be dynamically updated")
tlsKeyFile = flag.String("tlsKeyFile", "", "Path to file with TLS key if -tls is set. The provided key file is automatically re-read every second, so it can be dynamically updated")
tlsCertFile = flagutil.NewArrayString("tlsCertFile", "Path to file with TLS certificate for the corresponding -httpListenAddr if -tls is set. "+
"Prefer ECDSA certs instead of RSA certs as RSA certs are slower. The provided certificate file is automatically re-read every second, so it can be dynamically updated")
tlsKeyFile = flagutil.NewArrayString("tlsKeyFile", "Path to file with TLS key for the corresponding -httpListenAddr if -tls is set. "+
"The provided key file is automatically re-read every second, so it can be dynamically updated")
tlsCipherSuites = flagutil.NewArrayString("tlsCipherSuites", "Optional list of TLS cipher suites for incoming requests over HTTPS if -tls is set. See the list of supported cipher suites at https://pkg.go.dev/crypto/tls#pkg-constants")
tlsMinVersion = flag.String("tlsMinVersion", "", "Optional minimum TLS version to use for incoming requests over HTTPS if -tls is set. "+
tlsMinVersion = flagutil.NewArrayString("tlsMinVersion", "Optional minimum TLS version to use for the corresponding -httpListenAddr if -tls is set. "+
"Supported values: TLS10, TLS11, TLS12, TLS13")
pathPrefix = flag.String("http.pathPrefix", "", "An optional prefix to add to all the paths handled by http server. For example, if '-http.pathPrefix=/foo/bar' is set, "+
@ -77,35 +79,51 @@ type server struct {
// In such cases the caller must serve the request.
type RequestHandler func(w http.ResponseWriter, r *http.Request) bool
// Serve starts an http server on the given addr with the given optional rh.
// Serve starts an http server on the given addrs with the given optional rh.
//
// By default all the responses are transparently compressed, since egress traffic is usually expensive.
//
// The compression is also disabled if -http.disableResponseCompression flag is set.
// The compression can be disabled by specifying -http.disableResponseCompression command-line flag.
//
// If useProxyProtocol is set to true, then the incoming connections are accepted via proxy protocol.
// If useProxyProtocol is set to true for the corresponding addr, then the incoming connections are accepted via proxy protocol.
// See https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt
func Serve(addr string, useProxyProtocol bool, rh RequestHandler) {
func Serve(addrs []string, useProxyProtocol *flagutil.ArrayBool, rh RequestHandler) {
if rh == nil {
rh = func(w http.ResponseWriter, r *http.Request) bool {
return false
}
}
for idx, addr := range addrs {
if addr == "" {
continue
}
useProxyProto := false
if useProxyProtocol != nil {
useProxyProto = useProxyProtocol.GetOptionalArg(idx)
}
go serve(addr, useProxyProto, rh, idx)
}
}
func serve(addr string, useProxyProtocol bool, rh RequestHandler, idx int) {
scheme := "http"
if *tlsEnable {
if tlsEnable.GetOptionalArg(idx) {
scheme = "https"
}
hostAddr := addr
if strings.HasPrefix(hostAddr, ":") {
hostAddr = "127.0.0.1" + hostAddr
}
logger.Infof("starting http server at %s://%s/", scheme, hostAddr)
logger.Infof("starting server at %s://%s/", scheme, hostAddr)
logger.Infof("pprof handlers are exposed at %s://%s/debug/pprof/", scheme, hostAddr)
var tlsConfig *tls.Config
if *tlsEnable {
tc, err := netutil.GetServerTLSConfig(*tlsCertFile, *tlsKeyFile, *tlsMinVersion, *tlsCipherSuites)
if tlsEnable.GetOptionalArg(idx) {
certFile := tlsCertFile.GetOptionalArg(idx)
keyFile := tlsKeyFile.GetOptionalArg(idx)
minVersion := tlsMinVersion.GetOptionalArg(idx)
tc, err := netutil.GetServerTLSConfig(certFile, keyFile, minVersion, *tlsCipherSuites)
if err != nil {
logger.Fatalf("cannot load TLS cert from -tlsCertFile=%q, -tlsKeyFile=%q, -tlsMinVersion=%q: %s", *tlsCertFile, *tlsKeyFile, *tlsMinVersion, err)
logger.Fatalf("cannot load TLS cert from -tlsCertFile=%q, -tlsKeyFile=%q, -tlsMinVersion=%q, -tlsCipherSuites=%q: %s", certFile, keyFile, minVersion, *tlsCipherSuites, err)
}
tlsConfig = tc
}
@ -168,15 +186,38 @@ func whetherToCloseConn(r *http.Request) bool {
var connDeadlineTimeKey = interface{}("connDeadlineSecs")
// Stop stops the http server on the given addr, which has been started
// via Serve func.
func Stop(addr string) error {
// Stop stops the http server on the given addrs, which has been started via Serve func.
func Stop(addrs []string) error {
var errGlobalLock sync.Mutex
var errGlobal error
var wg sync.WaitGroup
for _, addr := range addrs {
if addr == "" {
continue
}
wg.Add(1)
go func(addr string) {
if err := stop(addr); err != nil {
errGlobalLock.Lock()
errGlobal = err
errGlobalLock.Unlock()
}
wg.Done()
}(addr)
}
wg.Wait()
return errGlobal
}
func stop(addr string) error {
serversLock.Lock()
s := servers[addr]
delete(servers, addr)
serversLock.Unlock()
if s == nil {
err := fmt.Errorf("BUG: there is no http server at %q", addr)
err := fmt.Errorf("BUG: there is no server at %q", addr)
logger.Panicf("%s", err)
// The return is needed for golangci-lint: SA5011(related information): this check suggests that the pointer can be nil
return err
@ -593,9 +634,9 @@ func (e *ErrorWithStatusCode) Error() string {
return e.Err.Error()
}
// IsTLS indicates is tls enabled or not
func IsTLS() bool {
return *tlsEnable
// IsTLS indicates is tls enabled or not for -httpListenAddr at the given idx.
func IsTLS(idx int) bool {
return tlsEnable.GetOptionalArg(idx)
}
// GetPathPrefix - returns http server path prefix.