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objstore.go
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objstore.go
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package objstore
import (
"net/http"
"time"
"github.com/caarlos0/env"
"github.com/minio/minio-go/v6"
"github.com/minio/minio-go/v6/pkg/credentials"
"github.com/pace/bricks/http/transport"
"github.com/pace/bricks/maintenance/health/servicehealthcheck"
"github.com/pace/bricks/maintenance/log"
)
type config struct {
Endpoint string `env:"S3_ENDPOINT" envDefault:"s3.amazonaws.com"`
AccessKeyID string `env:"S3_ACCESS_KEY_ID"`
Region string `env:"S3_REGION" envDefault:"us-east-1"`
SecretAccessKey string `env:"S3_SECRET_ACCESS_KEY"`
UseSSL bool `env:"S3_USE_SSL"`
HealthCheckBucketName string `env:"S3_HEALTH_CHECK_BUCKET_NAME" envDefault:"health-check"`
HealthCheckObjectName string `env:"S3_HEALTH_CHECK_OBJECT_NAME" envDefault:"latest.log"`
HealthCheckResultTTL time.Duration `env:"S3_HEALTH_CHECK_RESULT_TTL" envDefault:"10s"`
}
var cfg config
func init() {
// parse log config
err := env.Parse(&cfg)
if err != nil {
log.Fatalf("Failed to parse object storage environment: %v", err)
}
client, err := Client()
if err != nil {
log.Fatalf("Failed to create object storage client: %v", err)
}
servicehealthcheck.RegisterHealthCheck("objstore", &HealthCheck{
Client: client,
})
ok, err := client.BucketExists(cfg.HealthCheckBucketName)
if err != nil {
log.Warnf("Failed to create check for bucket: %v", err)
}
if !ok {
err := client.MakeBucket(cfg.HealthCheckBucketName, cfg.Region)
if err != nil {
log.Warnf("Failed to create bucket: %v", err)
}
}
}
// Client with environment based configuration
func Client() (*minio.Client, error) {
return CustomClient(cfg.Endpoint, &minio.Options{
Secure: cfg.UseSSL,
Region: cfg.Region,
BucketLookup: minio.BucketLookupAuto,
Creds: credentials.NewStaticV4(cfg.AccessKeyID, cfg.SecretAccessKey, ""),
})
}
// CustomClient with customized client
func CustomClient(endpoint string, opts *minio.Options) (*minio.Client, error) {
client, err := minio.NewWithOptions(endpoint, opts)
if err != nil {
return nil, err
}
log.Logger().Info().Str("endpoint", endpoint).
Str("region", opts.Region).
Bool("ssl", opts.Secure).
Msg("S3 connection created")
client.SetCustomTransport(newCustomTransport(endpoint))
return client, nil
}
func newCustomTransport(endpoint string) http.RoundTripper {
return transport.NewDefaultTransportChain().Use(newMetricRoundTripper(endpoint))
}