Connect to Google Cloud SQL instances

Step 1. Installing Google Cloud SDK

For more information about the installation process, see the Installing Google Cloud SDK guide at cloud.google.com. This procedure provides a summary of steps from the guide.

1. Download and extract the Google Cloud SDK archive.

2. Run the gcloud init command to initialize the SDK. Follow the installation wizard in the command prompt.

   ./google-cloud-sdk/bin/gcloud init

   

Step 2. Register your application for the Cloud SQL Admin API

1. Click the Enable the API button in the Enable the Cloud SQL Admin API section.

2. Select your project in the drop-down list and click Continue.

   You must enable the Cloud SQL Admin API for each database project if you want to connect to the database in this project. For example, one project uses PostgreSQL, another project uses MySQL. You need to enable the API for both projects.

   

Step 3. Configure authentication

1. Run the following command to authenticate the gcloud tool.

   gcloud auth login

   This command obtains your credentials and stores them in ~/.config/gcloud/. Now you can run gcloud commands from your terminal, and it will find your credentials automatically.

   

2. Run the following command to obtain credentials for the Application Default Credentials (ADC) library.

   gcloud auth application-default login

   This command obtains your credentials for the ADC library. Now, any code or SDK that is running on your computer will be able to find the credentials automatically.

   

Step 1. Run the Cloud SQL Proxy client

1. Download the Cloud SQL Proxy client. See installation instructions in Install the Cloud SQL Proxy client on your local machine at cloud.google.com.

2. Start the proxy in the command prompt.

   ./cloud_sql_proxy -instances=connection_name=tcp:3306

   Replace the connection_name with the connection name of your instance. You can find this information on the Overview page of your instance. If the 3306 port is already in use, change it to another port (for example, 5435).

   

Step 2. Create a data source

1. Ensure that the Cloud SQL Proxy client is running (see Step 1).

2. Open data source properties. You can open data source properties by using one of the following options:

   • Navigate to File | Data Sources.

   • Press Ctrl+Alt+Shift+S.

   • In the Database tool window (View | Tool Windows | Database), click the Data Source Properties icon .

3. In the Data Sources and Drivers dialog, click the Add icon () and select your database vendor (in our case, PostgreSQL).

4. At the bottom of the data source settings area, click the Download missing driver files link. As you click this link, DataGrip downloads drivers that are required to interact with a database. To decrease the size of the installation package and keep driver versions up-to-date, drivers are not bundled with the IDE.

   You can specify your own drivers for the data source if you do not want to download the provided drivers. For more information about creating a database connection with your driver, see Add a user driver to an existing connection.

5. From the Authentication list, select User & Password.

6. Specify connection details.

   • Host: 127.0.0.1. You are connecting to a local machine because you use the Cloud SQL Proxy client.

   • Port: 3306, or any other port that you selected for the proxy (for example, 5435).

   • User: a user who has permission to access the database.

   • Password: password of a user.

   • Database: a database to which you want to connect.

7. To ensure that the connection to the data source is successful, click the Test Connection link.

Step 1. Add the Cloud SQL Connector to the driver

1. Download the necessary JAR file from the Release page of the cloud-sql-jdbc-socket-factory repository at github.com.

   • PostgreSQL: postgres-socket-factory-<version>-jar-with-dependencies.jar

   • MySQL: mysql-socket-factory-<version>-jar-with-dependencies.jar

   • Microsoft SQL Server: cloud-sql-connector-jdbc-sqlserver-<version>-jar-with-dependencies.jar

2. Open data source properties. You can open data source properties by using one of the following options:

   • Navigate to File | Data Sources.

   • Press Ctrl+Alt+Shift+S.

   • In the Database tool window (View | Tool Windows | Database), click the Data Source Properties icon .

3. In the Data Sources and Drivers dialog, click the Drivers tab.

4. Click the driver of your database vendor and select Duplicate. Alternatively, press Ctrl+D.

5. In the Name field, type a new driver's name.

6. Click the Advanced tab and set the following properties:

   • PostgreSQL:

     socketFactory = com.google.cloud.sql.postgres.SocketFactory

   • MySQL:

     socketFactory = com.google.cloud.sql.postgres.SocketFactory

   • Microsoft SQL Server:

     socketFactoryClass = com.google.cloud.sql.sqlserver.SocketFactor socketFactoryConstructorArg = <connection_name>

     , where <connection_name> is a connection name of your instance in Cloud SQL (for example, sql-server-307:europe-west3:db). You can find this information on the Overview page of your instance.

7. On the General tab, click the Add icon () and select Custom JARs.

8. Navigate to the built or downloaded JAR library file (in our case, postgres-socket-factory-1.2.0-jar-with-dependencies.jar).

9. From the Class list, select the appropriate driver class (for example, org.postgresql.Driver).

10. Click Apply.

    

Step 2. Create a data source

1. Open data source properties. You can open data source properties by using one of the following options:

   • Navigate to File | Data Sources.

   • Press Ctrl+Alt+Shift+S.

   • In the Database tool window (View | Tool Windows | Database), click the Data Source Properties icon .

2. In the Data Sources and Drivers dialog, click the Drivers tab, select the driver that you prepared on Step 1, and click the Create Data Source link.

   Alternatively, click the Add icon () and select the driver that you prepared on Step 1.

3. In the Connection type list, select URL only.

4. In the URL field, paste the URL in the following format:

   • PostgreSQL:

     jdbc:postgresql:///<DATABASE_NAME>?cloudSqlInstance=<INSTANCE_CONNECTION_NAME>&user=<USER_NAME>&password=<USER_PASSWORD>

   • MySQL:

     jdbc:mysql:///<DATABASE_NAME>?cloudSqlInstance=<INSTANCE_CONNECTION_NAME>&user=<USER_NAME>&password=<USER_PASSWORD>

   • Microsoft SQL Server:

     jdbc:sqlserver://;databaseName=<DATABASE_NAME>;user=<USER_NAME>;password=<USER_PASSWORD>

   , where

   • DATABASE_NAME: the database name to which you want to connect.

   • INSTANCE_CONNECTION_NAME: the instance connection name. You can find this information on the Overview page of your instance.

     

   • USER_NAME: a username that has access to the database.

   • USER_PASSWORD: a user's password.

   Note that you do not need to specify the host. Due to the properties that you set for the driver, the IP address of your instance will be detected automatically.

   Your URL might look something like this:

   • PostgreSQL:

     jdbc:postgresql:///guest?cloudSqlInstance=crucial-study-301709:us-central1:postgres&user=guest&password=guest

   • MySQL:

     jdbc:mysql:///guest?cloudSqlInstance=mysql-304410:europe-west3:mysql&user=guest&password=guest

   • Microsoft SQL Server:

     jdbc:sqlserver://;databaseName=guest;user=sqlserver;password=guest

   

Step 1. Add your network to authorized networks

1. Open a page of your Cloud SQL Instance.

2. Select the Connections tab and click Add network.

3. In the Network field, type your external IP address or a range of IP addresses in the CIDR notation.

4. Click Done and then Save.

   Wait until your instance is updated.

   

Step 2. Create a data source

1. Open data source properties. You can open data source properties by using one of the following options:

   • Navigate to File | Data Sources.

   • Press Ctrl+Alt+Shift+S.

   • In the Database tool window (View | Tool Windows | Database), click the Data Source Properties icon .

2. In the Data Sources and Drivers dialog, click the Add icon () and select your database vendor (for example, PostgreSQL).

3. At the bottom of the data source settings area, click the Download missing driver files link. As you click this link, DataGrip downloads drivers that are required to interact with a database. To decrease the size of the installation package and keep driver versions up-to-date, drivers are not bundled with the IDE.

   You can specify your own drivers for the data source if you do not want to download the provided drivers. For more information about creating a database connection with your driver, see Add a user driver to an existing connection.

4. In the Host field, type the IP address of your PostgreSQL instance. You can find this IP address on the overview page of your instance.

   

5. From the Authentication list, select User & Password.

6. In the User field, type the username that has access to the database.

7. In the Password field, type the user's password.

8. In the Database field, type the database name to which you want to connect.

9. To ensure that the connection to the data source is successful, click the Test Connection link.