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[#228] add support of multiple sockets

Browse source 
Signed-off-by: Pavel Pogodaev <p.pogodaev@yadro.com>
This commit is contained in:
Pavel Pogodaev 2022-11-24 17:49:21 +03:00 committed by Alex Vanin
parent 7b1410968e
commit f3d58e4ef0
6 changed files with 247 additions and 103 deletions
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132
app.go
View file

@ -3,10 +3,8 @@ package main
import (
"context"
"crypto/ecdsa"
"crypto/tls"
"errors"
"fmt"
"net"
"net/http"
"os"
"os/signal"
"strconv"
@ -45,12 +43,12 @@ type (
metrics *gateMetrics
services []*metrics.Service
settings *appSettings
servers []Server
}
appSettings struct {
Uploader *uploader.Settings
Downloader *downloader.Settings
TLSProvider *certProvider
Uploader *uploader.Settings
Downloader *downloader.Settings
}
// App is an interface for the main gateway function.
@ -179,9 +177,8 @@ func newApp(ctx context.Context, opt ...Option) App {
func (a *app) initAppSettings() {
a.settings = &appSettings{
Uploader: &uploader.Settings{},
Downloader: &downloader.Settings{},
TLSProvider: &certProvider{Enabled: a.cfg.IsSet(cfgTLSCertificate) || a.cfg.IsSet(cfgTLSKey)},
Uploader: &uploader.Settings{},
Downloader: &downloader.Settings{},
}
a.updateSettings()
@ -341,43 +338,6 @@ func (a *app) setHealthStatus() {
a.metrics.SetHealth(1)
}
type certProvider struct {
Enabled bool
mu sync.RWMutex
certPath string
keyPath string
cert *tls.Certificate
}
func (p *certProvider) GetCertificate(*tls.ClientHelloInfo) (*tls.Certificate, error) {
if !p.Enabled {
return nil, errors.New("cert provider: disabled")
}
p.mu.RLock()
defer p.mu.RUnlock()
return p.cert, nil
}
func (p *certProvider) UpdateCert(certPath, keyPath string) error {
if !p.Enabled {
return fmt.Errorf("tls disabled")
}
cert, err := tls.LoadX509KeyPair(certPath, keyPath)
if err != nil {
return fmt.Errorf("cannot load TLS key pair from certFile '%s' and keyFile '%s': %w", certPath, keyPath, err)
}
p.mu.Lock()
p.certPath = certPath
p.keyPath = keyPath
p.cert = &cert
p.mu.Unlock()
return nil
}
func (a *app) Serve(ctx context.Context) {
uploadRoutes := uploader.New(ctx, a.AppParams(), a.settings.Uploader)
downloadRoutes := downloader.New(ctx, a.AppParams(), a.settings.Downloader)
@ -386,38 +346,16 @@ func (a *app) Serve(ctx context.Context) {
a.configureRouter(uploadRoutes, downloadRoutes)
a.startServices()
a.initServers(ctx)
go func() {
var err error
defer func() {
if err != nil {
a.log.Fatal("could not start server", zap.Error(err))
for i := range a.servers {
go func(i int) {
a.log.Info("starting server", zap.String("address", a.servers[i].Address()))
if err := a.webServer.Serve(a.servers[i].Listener()); err != nil && err != http.ErrServerClosed {
a.log.Fatal("listen and serve", zap.Error(err))
}
}()
bind := a.cfg.GetString(cfgListenAddress)
if a.settings.TLSProvider.Enabled {
if err = a.settings.TLSProvider.UpdateCert(a.cfg.GetString(cfgTLSCertificate), a.cfg.GetString(cfgTLSKey)); err != nil {
return
}
var lnConf net.ListenConfig
var ln net.Listener
if ln, err = lnConf.Listen(ctx, "tcp4", bind); err != nil {
return
}
lnTLS := tls.NewListener(ln, &tls.Config{
GetCertificate: a.settings.TLSProvider.GetCertificate,
})
a.log.Info("running web server (TLS-enabled)", zap.String("address", bind))
err = a.webServer.Serve(lnTLS)
} else {
a.log.Info("running web server", zap.String("address", bind))
err = a.webServer.ListenAndServe(bind)
}
}()
}(i)
}
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, syscall.SIGHUP)
@ -460,6 +398,10 @@ func (a *app) configReload() {
a.log.Warn("failed to update resolvers", zap.Error(err))
}
if err := a.updateServers(); err != nil {
a.log.Warn("failed to reload server parameters", zap.Error(err))
}
a.stopServices()
a.startServices()
@ -474,10 +416,6 @@ func (a *app) configReload() {
func (a *app) updateSettings() {
a.settings.Uploader.SetDefaultTimestamp(a.cfg.GetBool(cfgUploaderHeaderEnableDefaultTimestamp))
a.settings.Downloader.SetZipCompression(a.cfg.GetBool(cfgZipCompression))
if err := a.settings.TLSProvider.UpdateCert(a.cfg.GetString(cfgTLSCertificate), a.cfg.GetString(cfgTLSKey)); err != nil {
a.log.Warn("failed to reload TLS certs", zap.Error(err))
}
}
func (a *app) startServices() {
@ -543,3 +481,37 @@ func (a *app) AppParams() *utils.AppParams {
Resolver: a.resolver,
}
}
func (a *app) initServers(ctx context.Context) {
serversInfo := fetchServers(a.cfg)
a.servers = make([]Server, len(serversInfo))
for i, serverInfo := range serversInfo {
a.log.Info("added server",
zap.String("address", serverInfo.Address), zap.Bool("tls enabled", serverInfo.TLS.Enabled),
zap.String("tls cert", serverInfo.TLS.CertFile), zap.String("tls key", serverInfo.TLS.KeyFile))
a.servers[i] = newServer(ctx, serverInfo, a.log)
}
}
func (a *app) updateServers() error {
serversInfo := fetchServers(a.cfg)
if len(serversInfo) != len(a.servers) {
return fmt.Errorf("invalid servers configuration: length mismatch: old '%d', new '%d", len(a.servers), len(serversInfo))
}
for i, serverInfo := range serversInfo {
if serverInfo.Address != a.servers[i].Address() {
return fmt.Errorf("invalid servers configuration: addresses mismatch: old '%s', new '%s", a.servers[i].Address(), serverInfo.Address)
}
if serverInfo.TLS.Enabled {
if err := a.servers[i].UpdateCert(serverInfo.TLS.CertFile, serverInfo.TLS.KeyFile); err != nil {
return fmt.Errorf("failed to update tls certs: %w", err)
}
}
}
return nil
}

14
config/config.env
View file

@ -17,12 +17,14 @@ HTTP_GW_PROMETHEUS_ADDRESS=localhost:8084
# Log level.
HTTP_GW_LOGGER_LEVEL=debug
# Address to bind.
HTTP_GW_LISTEN_ADDRESS=0.0.0.0:443
# Provide cert to enable TLS.
HTTP_GW_TLS_CERTIFICATE=/path/to/tls/cert
# Provide key to enable TLS.
HTTP_GW_TLS_KEY=/path/to/tls/key
HTTP_GW_SERVER_0_ADDRESS=0.0.0.0:443
HTTP_GW_SERVER_0_TLS_ENABLED=false
HTTP_GW_SERVER_0_TLS_CERT_FILE=/path/to/tls/cert
HTTP_GW_SERVER_0_TLS_KEY_FILE=/path/to/tls/key
HTTP_GW_SERVER_1_ADDRESS=0.0.0.0:444
HTTP_GW_SERVER_1_TLS_ENABLED=true
HTTP_GW_SERVER_1_TLS_CERT_FILE=/path/to/tls/cert
HTTP_GW_SERVER_1_TLS_KEY_FILE=/path/to/tls/key
# Nodes configuration.
# This configuration make the gateway use the first node (grpc://s01.neofs.devenv:8080)

14
config/config.yaml
View file

@ -13,9 +13,17 @@ prometheus:
logger:
level: debug # Log level.
listen_address: 0.0.0.0:443 # Address to bind.
tls_certificate: /path/to/tls/cert # Provide cert to enable TLS.
tls_key: /path/to/tls/key # Provide key to enable TLS.
server:
- address: 0.0.0.0:8080
tls:
enabled: false
cert_file: /path/to/cert
key_file: /path/to/key
- address: 0.0.0.0:8081
tls:
enabled: false
cert_file: /path/to/cert
key_file: /path/to/key
# Nodes configuration.
# This configuration make the gateway use the first node (grpc://s01.neofs.devenv:8080)

2
integration_test.go
View file

@ -335,7 +335,7 @@ func getDefaultConfig() *viper.Viper {
v.SetDefault(cfgPeers+".0.priority", 1)
v.SetDefault(cfgRPCEndpoint, "http://localhost:30333")
v.SetDefault(cfgListenAddress, testListenAddress)
v.SetDefault("server.0.address", testListenAddress)
return v
}

124
server.go Normal file
View file

@ -0,0 +1,124 @@
package main
import (
"context"
"crypto/tls"
"errors"
"fmt"
"net"
"sync"
"go.uber.org/zap"
)
type (
ServerInfo struct {
Address string
TLS ServerTLSInfo
}
ServerTLSInfo struct {
Enabled bool
CertFile string
KeyFile string
}
Server interface {
Address() string
Listener() net.Listener
UpdateCert(certFile, keyFile string) error
}
server struct {
address string
listener net.Listener
tlsProvider *certProvider
}
certProvider struct {
Enabled bool
mu sync.RWMutex
certPath string
keyPath string
cert *tls.Certificate
}
)
func (s *server) Address() string {
return s.address
}
func (s *server) Listener() net.Listener {
return s.listener
}
func (s *server) UpdateCert(certFile, keyFile string) error {
return s.tlsProvider.UpdateCert(certFile, keyFile)
}
func newServer(ctx context.Context, serverInfo ServerInfo, logger *zap.Logger) *server {
var lic net.ListenConfig
ln, err := lic.Listen(ctx, "tcp", serverInfo.Address)
if err != nil {
logger.Fatal("could not prepare listener", zap.String("address", serverInfo.Address), zap.Error(err))
}
tlsProvider := &certProvider{
Enabled: serverInfo.TLS.Enabled,
}
if serverInfo.TLS.Enabled {
if err = tlsProvider.UpdateCert(serverInfo.TLS.CertFile, serverInfo.TLS.KeyFile); err != nil {
logger.Fatal("failed to update cert", zap.Error(err))
}
ln = tls.NewListener(ln, &tls.Config{
GetCertificate: tlsProvider.GetCertificate,
})
}
return &server{
address: serverInfo.Address,
listener: ln,
tlsProvider: tlsProvider,
}
}
func (p *certProvider) GetCertificate(*tls.ClientHelloInfo) (*tls.Certificate, error) {
if !p.Enabled {
return nil, errors.New("cert provider: disabled")
}
p.mu.RLock()
defer p.mu.RUnlock()
return p.cert, nil
}
func (p *certProvider) UpdateCert(certPath, keyPath string) error {
if !p.Enabled {
return fmt.Errorf("tls disabled")
}
cert, err := tls.LoadX509KeyPair(certPath, keyPath)
if err != nil {
return fmt.Errorf("cannot load TLS key pair from certFile '%s' and keyFile '%s': %w", certPath, keyPath, err)
}
p.mu.Lock()
p.certPath = certPath
p.keyPath = keyPath
p.cert = &cert
p.mu.Unlock()
return nil
}
func (p *certProvider) FilePaths() (string, string) {
if !p.Enabled {
return "", ""
}
p.mu.RLock()
defer p.mu.RUnlock()
return p.certPath, p.keyPath
}

64
settings.go
View file

@ -27,9 +27,10 @@ const (
defaultPoolErrorThreshold uint32 = 100
cfgListenAddress = "listen_address"
cfgTLSCertificate = "tls_certificate"
cfgTLSKey = "tls_key"
cfgServer = "server"
cfgTLSEnabled = "tls.enabled"
cfgTLSCertFile = "tls.cert_file"
cfgTLSKeyFile = "tls.key_file"
// Web.
cfgWebReadBufferSize = "web.read_buffer_size"
@ -76,13 +77,14 @@ const (
cfgZipCompression = "zip.compression"
// Command line args.
cmdHelp = "help"
cmdVersion = "version"
cmdPprof = "pprof"
cmdMetrics = "metrics"
cmdWallet = "wallet"
cmdAddress = "address"
cmdConfig = "config"
cmdHelp = "help"
cmdVersion = "version"
cmdPprof = "pprof"
cmdMetrics = "metrics"
cmdWallet = "wallet"
cmdAddress = "address"
cmdConfig = "config"
cmdListenAddress = "listen_address"
)
var ignore = map[string]struct{}{
@ -118,9 +120,9 @@ func settings() *viper.Viper {
flags.Duration(cfgReqTimeout, defaultRequestTimeout, "gRPC request timeout")
flags.Duration(cfgRebalance, defaultRebalanceTimer, "gRPC connection rebalance timer")
flags.String(cfgListenAddress, "0.0.0.0:8082", "address to listen")
flags.String(cfgTLSCertificate, "", "TLS certificate path")
flags.String(cfgTLSKey, "", "TLS key path")
flags.String(cmdListenAddress, "0.0.0.0:8080", "addresses to listen")
flags.String(cfgTLSCertFile, "", "TLS certificate path")
flags.String(cfgTLSKeyFile, "", "TLS key path")
peers := flags.StringArrayP(cfgPeers, "p", nil, "NeoFS nodes")
resolveMethods := flags.StringSlice(cfgResolveOrder, []string{resolver.NNSResolver, resolver.DNSResolver}, "set container name resolve order")
@ -171,10 +173,24 @@ func settings() *viper.Viper {
panic(err)
}
if err := v.BindPFlag(cfgServer+".0.address", flags.Lookup(cmdListenAddress)); err != nil {
panic(err)
}
if err := v.BindPFlag(cfgServer+".0."+cfgTLSKeyFile, flags.Lookup(cfgTLSKeyFile)); err != nil {
panic(err)
}
if err := v.BindPFlag(cfgServer+".0."+cfgTLSCertFile, flags.Lookup(cfgTLSCertFile)); err != nil {
panic(err)
}
if err := flags.Parse(os.Args); err != nil {
panic(err)
}
if v.IsSet(cfgServer+".0."+cfgTLSKeyFile) && v.IsSet(cfgServer+".0."+cfgTLSCertFile) {
v.Set(cfgServer+".0."+cfgTLSEnabled, true)
}
if resolveMethods != nil {
v.SetDefault(cfgResolveOrder, *resolveMethods)
}
@ -297,3 +313,25 @@ func getLogLevel(v *viper.Viper) (zapcore.Level, error) {
}
return lvl, nil
}
func fetchServers(v *viper.Viper) []ServerInfo {
var servers []ServerInfo
for i := 0; ; i++ {
key := cfgServer + "." + strconv.Itoa(i) + "."
var serverInfo ServerInfo
serverInfo.Address = v.GetString(key + "address")
serverInfo.TLS.Enabled = v.GetBool(key + cfgTLSEnabled)
serverInfo.TLS.KeyFile = v.GetString(key + cfgTLSKeyFile)
serverInfo.TLS.CertFile = v.GetString(key + cfgTLSCertFile)
if serverInfo.Address == "" {
break
}
servers = append(servers, serverInfo)
}
return servers
}