/
main.go
185 lines (154 loc) · 5.84 KB
/
main.go
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package main
import (
"context"
"fmt"
"log"
"os"
"os/signal"
"syscall"
"github.com/aws/aws-sdk-go-v2/aws"
awsconfig "github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/credentials"
"github.com/go-redis/redis/v8"
influxdb2 "github.com/influxdata/influxdb-client-go/v2"
"github.com/wormhole-foundation/wormhole-explorer/analytic/config"
"github.com/wormhole-foundation/wormhole-explorer/analytic/consumer"
"github.com/wormhole-foundation/wormhole-explorer/analytic/http/infrastructure"
"github.com/wormhole-foundation/wormhole-explorer/analytic/metric"
"github.com/wormhole-foundation/wormhole-explorer/analytic/queue"
wormscanNotionalCache "github.com/wormhole-foundation/wormhole-explorer/common/client/cache/notional"
sqs_client "github.com/wormhole-foundation/wormhole-explorer/common/client/sqs"
health "github.com/wormhole-foundation/wormhole-explorer/common/health"
"github.com/wormhole-foundation/wormhole-explorer/common/logger"
"go.uber.org/zap"
)
type exitCode int
func handleExit() {
if r := recover(); r != nil {
if e, ok := r.(exitCode); ok {
os.Exit(int(e))
}
panic(r) // not an Exit, bubble up
}
}
func main() {
defer handleExit()
rootCtx, rootCtxCancel := context.WithCancel(context.Background())
// load config.
config, err := config.New(rootCtx)
if err != nil {
log.Fatal("Error creating config", err)
}
// build logger
logger := logger.New("wormhole-explorer-analytic", logger.WithLevel(config.LogLevel))
logger.Info("Starting wormhole-explorer-analytic ...")
// create influxdb client.
influxCli := newInfluxClient(config.InfluxUrl, config.InfluxToken)
influxCli.Options().SetBatchSize(100)
// get health check functions.
healthChecks, err := newHealthChecks(rootCtx, config, influxCli)
if err != nil {
logger.Fatal("failed to create health checks", zap.Error(err))
}
//create notional cache
notionalCache, err := newNotionalCache(rootCtx, config, logger)
if err != nil {
logger.Fatal("failed to create notional cache", zap.Error(err))
}
// create a metrics instance
metric, err := metric.New(rootCtx, influxCli, config.InfluxOrganization, config.InfluxBucketInfinite,
config.InfluxBucket30Days, config.InfluxBucket24Hours, notionalCache, logger)
if err != nil {
logger.Fatal("failed to create metrics instance", zap.Error(err))
}
// create and start a consumer.
vaaConsumeFunc := newVAAConsume(rootCtx, config, logger)
consumer := consumer.New(vaaConsumeFunc, metric.Push, logger, config.P2pNetwork)
consumer.Start(rootCtx)
// create and start server.
server := infrastructure.NewServer(logger, config.Port, config.PprofEnabled, healthChecks...)
server.Start()
logger.Info("Started wormhole-explorer-analytic")
// Waiting for signal
sigterm := make(chan os.Signal, 1)
signal.Notify(sigterm, syscall.SIGINT, syscall.SIGTERM)
select {
case <-rootCtx.Done():
logger.Warn("Terminating with root context cancelled.")
case signal := <-sigterm:
logger.Info("Terminating with signal.", zap.String("signal", signal.String()))
}
logger.Info("root context cancelled, exiting...")
rootCtxCancel()
logger.Info("Closing metric client ...")
metric.Close()
logger.Info("Closing Http server ...")
server.Stop()
logger.Info("Finished wormhole-explorer-analytic")
}
// Creates a callbacks depending on whether the execution is local (memory queue) or not (SQS queue)
func newVAAConsume(appCtx context.Context, config *config.Configuration, logger *zap.Logger) queue.VAAConsumeFunc {
sqsConsumer, err := newSQSConsumer(appCtx, config)
if err != nil {
logger.Fatal("failed to create sqs consumer", zap.Error(err))
}
vaaQueue := queue.NewVaaSqs(sqsConsumer, logger)
return vaaQueue.Consume
}
func newSQSConsumer(appCtx context.Context, config *config.Configuration) (*sqs_client.Consumer, error) {
awsconfig, err := newAwsConfig(appCtx, config)
if err != nil {
return nil, err
}
return sqs_client.NewConsumer(awsconfig, config.SQSUrl,
sqs_client.WithMaxMessages(10),
sqs_client.WithVisibilityTimeout(120))
}
func newAwsConfig(appCtx context.Context, cfg *config.Configuration) (aws.Config, error) {
region := cfg.AwsRegion
if cfg.AwsAccessKeyID != "" && cfg.AwsSecretAccessKey != "" {
credentials := credentials.NewStaticCredentialsProvider(cfg.AwsAccessKeyID, cfg.AwsSecretAccessKey, "")
customResolver := aws.EndpointResolverFunc(func(service, region string) (aws.Endpoint, error) {
if cfg.AwsEndpoint != "" {
return aws.Endpoint{
PartitionID: "aws",
URL: cfg.AwsEndpoint,
SigningRegion: region,
}, nil
}
return aws.Endpoint{}, &aws.EndpointNotFoundError{}
})
awsCfg, err := awsconfig.LoadDefaultConfig(appCtx,
awsconfig.WithRegion(region),
awsconfig.WithEndpointResolver(customResolver),
awsconfig.WithCredentialsProvider(credentials),
)
return awsCfg, err
}
return awsconfig.LoadDefaultConfig(appCtx, awsconfig.WithRegion(region))
}
func newInfluxClient(url, token string) influxdb2.Client {
return influxdb2.NewClient(url, token)
}
func newHealthChecks(ctx context.Context, config *config.Configuration, influxCli influxdb2.Client) ([]health.Check, error) {
awsConfig, err := newAwsConfig(ctx, config)
if err != nil {
return nil, err
}
return []health.Check{health.SQS(awsConfig, config.SQSUrl), health.Influx(influxCli)}, nil
}
func newNotionalCache(
ctx context.Context,
cfg *config.Configuration,
logger *zap.Logger,
) (wormscanNotionalCache.NotionalLocalCacheReadable, error) {
// use a distributed cache and for notional a pubsub to sync local cache.
redisClient := redis.NewClient(&redis.Options{Addr: cfg.CacheURL})
// get notional cache client and init load to local cache
notionalCache, err := wormscanNotionalCache.NewNotionalCache(ctx, redisClient, cfg.CacheChannel, logger)
if err != nil {
return nil, fmt.Errorf("failed to create notional cache client: %w", err)
}
notionalCache.Init(ctx)
return notionalCache, nil
}