feat(BE-308,309): utility document and implementation s3 bucket

internal/config/config.go

@@ -65,6 +65,14 @@ var (
 	SSOUserSyncDrift        time.Duration
 	SSOUserSyncNonceTTL     time.Duration
 	SSOUserSyncMaxBodyBytes int
+	S3Endpoint              string
+	S3Region                string
+	S3Bucket                string
+	S3AccessKey             string
+	S3SecretKey             string
+	S3ForcePathStyle        bool
+	S3PublicBaseURL         string
+	S3DocumentKeyPrefix     string
 )
 
 func init() {
@@ -106,6 +114,16 @@ func init() {
 	// Redis
 	RedisURL = viper.GetString("REDIS_URL")
 
+	// Object storage
+	S3Endpoint = strings.TrimSpace(viper.GetString("S3_ENDPOINT"))
+	S3Region = strings.TrimSpace(viper.GetString("S3_REGION"))
+	S3Bucket = strings.TrimSpace(viper.GetString("S3_BUCKET"))
+	S3AccessKey = strings.TrimSpace(viper.GetString("S3_ACCESS_KEY"))
+	S3SecretKey = strings.TrimSpace(viper.GetString("S3_SECRET_KEY"))
+	S3ForcePathStyle = viper.GetBool("S3_FORCE_PATH_STYLE")
+	S3PublicBaseURL = strings.TrimSuffix(strings.TrimSpace(viper.GetString("S3_PUBLIC_BASE_URL")), "/")
+	S3DocumentKeyPrefix = defaultString(strings.Trim(strings.TrimSpace(viper.GetString("S3_DOCUMENT_PREFIX")), "/"), "docs")
+
 	// SSO integration
 	SSOIssuer = viper.GetString("SSO_ISSUER")
 	SSOJWKSURL = viper.GetString("SSO_JWKS_URL")