Cloud SQL Go Connector를 사용하여 연결 만들기
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Cloud SQL Go Connector를 사용하여 MySQL용 Cloud SQL 연결을 엽니다.
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코드 샘플
Go
MySQL용 Cloud SQL에 인증하려면 애플리케이션 기본 사용자 인증 정보를 설정합니다.
자세한 내용은 로컬 개발 환경의 인증 설정을 참조하세요.
달리 명시되지 않는 한 이 페이지의 콘텐츠에는 Creative Commons Attribution 4.0 라이선스에 따라 라이선스가 부여되며, 코드 샘플에는 Apache 2.0 라이선스에 따라 라이선스가 부여됩니다. 자세한 내용은 Google Developers 사이트 정책을 참조하세요. 자바는 Oracle 및/또는 Oracle 계열사의 등록 상표입니다.
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["이해하기 어려움","hardToUnderstand","thumb-down"],["잘못된 정보 또는 샘플 코드","incorrectInformationOrSampleCode","thumb-down"],["필요한 정보/샘플이 없음","missingTheInformationSamplesINeed","thumb-down"],["번역 문제","translationIssue","thumb-down"],["기타","otherDown","thumb-down"]],[],[],[],null,["# Create a connection using the Cloud SQL Go Connector\n\nOpen a connection to Cloud SQL for MySQL by using the Cloud SQL Go Connector.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Connect from App Engine flexible environment](/sql/docs/mysql/connect-app-engine-flexible)\n- [Connect from App Engine standard environment](/sql/docs/mysql/connect-app-engine-standard)\n- [Connect from Cloud Run](/sql/docs/mysql/connect-run)\n- [Connect from Cloud Run functions](/sql/docs/mysql/connect-functions)\n- [Connect using Cloud SQL Language Connectors](/sql/docs/mysql/connect-connectors)\n\nCode sample\n-----------\n\n### Go\n\n\nTo authenticate to Cloud SQL for MySQL, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n package cloudsql\n\n import (\n \t\"context\"\n \t\"database/sql\"\n \t\"fmt\"\n \t\"log\"\n \t\"net\"\n \t\"os\"\n\n \t\"cloud.google.com/go/cloudsqlconn\"\n \t\"github.com/go-sql-driver/mysql\"\n )\n\n func connectWithConnector() (*sql.DB, error) {\n \tmustGetenv := func(k string) string {\n \t\tv := os.Getenv(k)\n \t\tif v == \"\" {\n \t\t\tlog.Fatalf(\"Fatal Error in connect_connector.go: %s environment variable not set.\", k)\n \t\t}\n \t\treturn v\n \t}\n \t// Note: Saving credentials in environment variables is convenient, but not\n \t// secure - consider a more secure solution such as\n \t// Cloud Secret Manager (https://cloud.google.com/secret-manager) to help\n \t// keep passwords and other secrets safe.\n \tvar (\n \t\tdbUser = mustGetenv(\"DB_USER\") // e.g. 'my-db-user'\n \t\tdbPwd = mustGetenv(\"DB_PASS\") // e.g. 'my-db-password'\n \t\tdbName = mustGetenv(\"DB_NAME\") // e.g. 'my-database'\n \t\tinstanceConnectionName = mustGetenv(\"INSTANCE_CONNECTION_NAME\") // e.g. 'project:region:instance'\n \t\tusePrivate = os.Getenv(\"PRIVATE_IP\")\n \t)\n\n \t// WithLazyRefresh() Option is used to perform refresh\n \t// when needed, rather than on a scheduled interval.\n \t// This is recommended for serverless environments to\n \t// avoid background refreshes from throttling CPU.\n \td, err := cloudsqlconn.https://cloud.google.com/go/docs/reference/cloud.google.com/go/cloudsqlconn/latest/index.html#cloud_google_com_go_cloudsqlconn_Dialer_NewDialer(context.Background(), cloudsqlconn.https://cloud.google.com/go/docs/reference/cloud.google.com/go/cloudsqlconn/latest/index.html#cloud_google_com_go_cloudsqlconn_Option_WithLazyRefresh())\n \tif err != nil {\n \t\treturn nil, fmt.Errorf(\"cloudsqlconn.NewDialer: %w\", err)\n \t}\n \tvar opts []cloudsqlconn.https://cloud.google.com/go/docs/reference/cloud.google.com/go/cloudsqlconn/latest/index.html#cloud_google_com_go_cloudsqlconn_DialOption\n \tif usePrivate != \"\" {\n \t\topts = append(opts, cloudsqlconn.https://cloud.google.com/go/docs/reference/cloud.google.com/go/cloudsqlconn/latest/index.html#cloud_google_com_go_cloudsqlconn_DialOption_WithPrivateIP())\n \t}\n \tmysql.RegisterDialContext(\"cloudsqlconn\",\n \t\tfunc(ctx context.Context, addr string) (net.Conn, error) {\n \t\t\treturn d.https://cloud.google.com/go/docs/reference/cloud.google.com/go/cloudsqlconn/latest/index.html#cloud_google_com_go_cloudsqlconn_Dialer_Dial(ctx, instanceConnectionName, opts...)\n \t\t})\n\n \tdbURI := fmt.Sprintf(\"%s:%s@cloudsqlconn(localhost:3306)/%s?parseTime=true\",\n \t\tdbUser, dbPwd, dbName)\n\n \tdbPool, err := sql.Open(\"mysql\", dbURI)\n \tif err != nil {\n \t\treturn nil, fmt.Errorf(\"sql.Open: %w\", err)\n \t}\n \treturn dbPool, nil\n }\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=cloud_sql_mysql)."]]