refactor: new bun config

cmd/dcbot/internal/bun.go

@@ -23,9 +23,8 @@ const (
 type bunConfig struct {
 	DSN                   string        `envconfig:"DSN" required:"true"`
 	MaxOpenConnections    int           `envconfig:"MAX_OPEN_CONNECTIONS" default:"5"`
-	MaxIdleConnections    int           `envconfig:"MAX_IDLE_CONNECTIONS" default:"5"`
+	MaxIdleConnections    int           `envconfig:"MAX_IDLE_CONNECTIONS" default:"2"`
 	ConnectionMaxLifetime time.Duration `envconfig:"CONNECTION_MAX_LIFETIME" default:"3m"`
-	ConnectionMaxIdleTime time.Duration `envconfig:"CONNECTION_MAX_IDLE_TIME" default:"5m"`
 }
 
 func NewBunDB() (*bun.DB, error) {
@@ -51,6 +50,5 @@ func newSQLDB(cfg bunConfig) *sql.DB {
 	db.SetMaxOpenConns(cfg.MaxOpenConnections)
 	db.SetMaxIdleConns(cfg.MaxIdleConnections)
 	db.SetConnMaxLifetime(cfg.ConnectionMaxLifetime)
-	db.SetConnMaxIdleTime(cfg.ConnectionMaxIdleTime)
 	return db
 }

k8s/base/bot.yml

@@ -26,7 +26,7 @@ spec:
             - name: DB_MAX_OPEN_CONNECTIONS
               value: "10"
             - name: DB_MAX_IDLE_CONNECTIONS
-              value: "2"
+              value: "3"
             - name: BOT_TOKEN
               valueFrom:
                 secretKeyRef:

k8s/overlays/prod/bot.yml

@@ -19,7 +19,7 @@ spec:
             - name: DB_MAX_OPEN_CONNECTIONS
               value: "15"
             - name: DB_MAX_IDLE_CONNECTIONS
-              value: "8"
+              value: "7"
             - name: BOT_TOKEN
               valueFrom:
                 secretKeyRef: