/
main.go
223 lines (194 loc) · 5.69 KB
/
main.go
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package main
import (
"context"
"fmt"
"log"
"net/http"
"os"
"os/signal"
"sync"
"syscall"
"github.com/jessevdk/go-flags"
"github.com/waku-org/go-waku/waku/v2/utils"
"github.com/xmtp/xmtp-node-go/pkg/server"
"github.com/xmtp/xmtp-node-go/pkg/tracing"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"gopkg.in/DataDog/dd-trace-go.v1/profiler"
_ "net/http/pprof"
)
var Commit string
var options server.Options
// Avoiding replacing the flag parser with something fancier like Viper or urfave/cli
// This hack will work up to a point.
func addEnvVars() {
if connStr, hasConnstr := os.LookupEnv("MESSAGE_DB_CONNECTION_STRING"); hasConnstr {
options.Store.DbConnectionString = connStr
}
if connStr, hasConnstr := os.LookupEnv("MESSAGE_DB_READER_CONNECTION_STRING"); hasConnstr {
options.Store.DbReaderConnectionString = connStr
}
if connStr, hasConnstr := os.LookupEnv("MLS_DB_CONNECTION_STRING"); hasConnstr {
options.MLSStore.DbConnectionString = connStr
}
if connStr, hasConnstr := os.LookupEnv("AUTHZ_DB_CONNECTION_STRING"); hasConnstr {
options.Authz.DbConnectionString = connStr
}
}
func main() {
if _, err := flags.Parse(&options); err != nil {
if err, ok := err.(*flags.Error); !ok || err.Type != flags.ErrHelp {
fatal("Could not parse options: %s", err)
}
return
}
log, logCfg, err := buildLogger(options)
if err != nil {
fatal("Could not build logger: %s", err)
}
addEnvVars()
if options.GoProfiling {
// Spin up a default HTTP server for https://pkg.go.dev/net/http/pprof
go func() {
err := http.ListenAndServe("0.0.0.0:6060", nil)
if err != nil {
log.Error("serving profiler", zap.Error(err))
}
}()
}
if options.Version {
fmt.Printf("Version: %s", Commit)
return
}
if options.GenerateKey {
if err := server.WritePrivateKeyToFile(options.KeyFile, options.Overwrite); err != nil {
log.Fatal("writing private key file", zap.Error(err))
}
return
}
if options.CreateMessageMigration != "" && options.Store.DbConnectionString != "" {
if err := server.CreateMessageMigration(options.CreateMessageMigration, options.Store.DbConnectionString, options.WaitForDB, options.Store.ReadTimeout, options.Store.WriteTimeout, options.Store.MaxOpenConns); err != nil {
log.Fatal("creating message db migration", zap.Error(err))
}
return
}
if options.CreateAuthzMigration != "" && options.Authz.DbConnectionString != "" {
if err := server.CreateAuthzMigration(options.CreateAuthzMigration, options.Authz.DbConnectionString, options.WaitForDB, options.Authz.ReadTimeout, options.Authz.WriteTimeout, options.Store.MaxOpenConns); err != nil {
log.Fatal("creating authz db migration", zap.Error(err))
}
return
}
if options.CreateMlsMigration != "" && options.MLSStore.DbConnectionString != "" {
if err := server.CreateMlsMigration(options.CreateMlsMigration, options.MLSStore.DbConnectionString, options.WaitForDB, options.MLSStore.ReadTimeout, options.MLSStore.WriteTimeout, options.Store.MaxOpenConns); err != nil {
log.Fatal("creating authz db migration", zap.Error(err))
}
return
}
if options.Tracing.Enable {
log.Info("starting tracer")
tracing.Start(Commit, utils.Logger())
defer func() {
log.Info("stopping tracer")
tracing.Stop()
}()
}
if options.Profiling.Enable {
env := os.Getenv("ENV")
if env == "" {
env = "test"
}
ptypes := []profiler.ProfileType{
profiler.CPUProfile,
profiler.HeapProfile,
}
if options.Profiling.Block {
ptypes = append(ptypes, profiler.BlockProfile)
}
if options.Profiling.Mutex {
ptypes = append(ptypes, profiler.MutexProfile)
}
if options.Profiling.Goroutine {
ptypes = append(ptypes, profiler.GoroutineProfile)
}
if err := profiler.Start(
profiler.WithService("xmtpd"),
profiler.WithEnv(env),
profiler.WithVersion(Commit),
profiler.WithProfileTypes(ptypes...),
); err != nil {
log.Fatal("starting profiler", zap.Error(err))
}
defer profiler.Stop()
}
ctx, cancel := context.WithCancel(context.Background())
var wg sync.WaitGroup
doneC := make(chan bool, 1)
tracing.GoPanicWrap(ctx, &wg, "main", func(ctx context.Context) {
s, err := server.New(ctx, log, options)
if err != nil {
log.Fatal("initializing server", zap.Error(err))
}
s.WaitForShutdown()
doneC <- true
})
// Toggle debug level on SIGUSR1
sigToggleC := make(chan os.Signal, 1)
signal.Notify(sigToggleC, syscall.SIGUSR1)
go func() {
for range sigToggleC {
log.Info("toggling debug level")
newLevel := zapcore.DebugLevel
if logCfg.Level.Enabled(zapcore.DebugLevel) {
newLevel = zapcore.InfoLevel
}
logCfg.Level.SetLevel(newLevel)
}
}()
sigC := make(chan os.Signal, 1)
signal.Notify(sigC,
syscall.SIGHUP,
syscall.SIGINT,
syscall.SIGTERM,
syscall.SIGQUIT,
)
select {
case sig := <-sigC:
log.Info("ending on signal", zap.String("signal", sig.String()))
case <-doneC:
}
cancel()
wg.Wait()
}
func fatal(msg string, args ...any) {
log.Fatalf(msg, args...)
}
func buildLogger(options server.Options) (*zap.Logger, *zap.Config, error) {
atom := zap.NewAtomicLevel()
level := zapcore.InfoLevel
err := level.Set(options.LogLevel)
if err != nil {
return nil, nil, err
}
atom.SetLevel(level)
cfg := zap.Config{
Encoding: options.LogEncoding,
Level: atom,
OutputPaths: []string{"stdout"},
ErrorOutputPaths: []string{"stderr"},
EncoderConfig: zapcore.EncoderConfig{
MessageKey: "message",
LevelKey: "level",
EncodeLevel: zapcore.CapitalLevelEncoder,
TimeKey: "time",
EncodeTime: zapcore.ISO8601TimeEncoder,
NameKey: "caller",
EncodeCaller: zapcore.ShortCallerEncoder,
},
}
log, err := cfg.Build()
if err != nil {
return nil, nil, err
}
log = log.Named("xmtpd")
return log, &cfg, nil
}