You've already forked coredns-powerdns-api-wrapper
40 lines
869 B
Go
40 lines
869 B
Go
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright (C) 2026 Bryan Joshua Pedini
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package main
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import (
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"context"
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"database/sql"
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"log/slog"
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"os"
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"time"
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_ "github.com/go-sql-driver/mysql"
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)
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// OpenDB opens the MySQL pool and pings it with a timeout, mirroring the
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// Corefile's pool limits. Must be called after the privilege drop.
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func OpenDB(logger *slog.Logger, dsn string) *sql.DB {
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db, err := sql.Open("mysql", dsn)
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if err != nil {
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logger.Error("failed to open mysql pool", "error", err)
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os.Exit(1)
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}
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db.SetMaxOpenConns(10)
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db.SetMaxIdleConns(5)
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db.SetConnMaxLifetime(60 * time.Second)
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := db.PingContext(ctx); err != nil {
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logger.Error("failed to reach mysql", "error", err)
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os.Exit(1)
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}
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logger.Info("mysql pool ready")
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return db
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}
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