Contoh kode library klien enkripsi dalam pengiriman

Contoh kode ini menunjukkan konfigurasi library klien go-redis untuk terhubung ke instance Memorystore for Redis yang mengaktifkan enkripsi dalam pengiriman.

Menghubungkan ke instance

Contoh berikut memberikan contoh cara membuat instance klien, memuat Certificate Authority enkripsi dalam pengiriman, dan cara menyiapkan kumpulan koneksi.

Go

import (
	"context"
	"crypto/tls"
	"crypto/x509"
	"errors"
	"fmt"
	"io"
	"time"

	memorystore "cloud.google.com/go/redis/apiv1"
	redispb "cloud.google.com/go/redis/apiv1/redispb"
	"github.com/go-redis/redis/v8"
)

// ConnectToDatabase demonstrates how to use go-redis library to connect to a
// Memorystore Redis instance.
func ConnectToDatabase(w io.Writer, projectID, location, instanceID string) error {

	// Instantiate a Redis administrative client
	ctx := context.Background()
	adminClient, err := memorystore.NewCloudRedisClient(ctx)
	if err != nil {
		return err
	}
	defer adminClient.Close()

	req := &redispb.GetInstanceRequest{
		Name: fmt.Sprintf("projects/%s/locations/%s/instances/%s", projectID, location, instanceID),
	}

	instance, err := adminClient.GetInstance(ctx, req)
	if err != nil {
		return err
	}

	fmt.Fprintln(w, instance)

	// Load CA cert
	caCerts := instance.GetServerCaCerts()
	if len(caCerts) == 0 {
		return errors.New("memorystore: no server CA certs for instance")
	}

	caCertPool := x509.NewCertPool()
	caCertPool.AppendCertsFromPEM([]byte(caCerts[0].Cert))

	// Setup Redis Connection pool
	client := redis.NewClient(&redis.Options{
		Addr:         fmt.Sprintf("%s:%d", instance.Host, instance.Port),
		Password:     "PASSWORD",
		PoolSize:     1,
		MinIdleConns: 1,
		PoolTimeout:  0,
		IdleTimeout:  20 * time.Second,
		DialTimeout:  2 * time.Second,
		TLSConfig: &tls.Config{
			RootCAs: caCertPool,
		},
	})

	p, err := client.Ping(ctx).Result()
	if err != nil {
		return err
	}
	fmt.Fprintf(w, "Response:\n%s", p)

	return nil
}

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