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onnecting to instances that are configured with the shared certificate authority ca google_managed_cas_ca option or the customer managed ca customer_managed_cas_ca option as the server ca mode then select the second generation execution environment when you select the execution environment for the service both server ca mode options require you to connect to the instance with the cloud sql auth proxy v2 if your service runs in a first generation execution environment then you can connect only to cloud sql instances that are configured with the per instance certificate authority ca option google_managed_internal_ca as the server ca mode the first generation execution environment of cloud run embeds the cloud sql auth proxy v1 for more information about connection requirements to cloud sql for the cloud sql auth proxy see requirements for using the cloud sql auth proxy like any configuration change setting a new configuration for the cloud sql connection leads to the creation of a new cloud run revision subsequent revisions will also automatically get this cloud sql connection unless you make explicit updates to change it console go to cloud run start configuring the service to add cloud sql connections to an existing service do the following from the services list click the service name you want click edit deploy new revision enable connecting to a cloud sql instance note if your application is written in java you can skip this step since you do this in the java cloud sql connector click container s and then settings scroll to cloud sql connections click add connection click enable the cloud sql admin button if you haven t enabled the cloud sql admin api yet if you re adding a connection to a cloud sql instance in your project then select the cloud sql instance you want from the menu if you re using a cloud sql instance from another project then select custom connection string in the menu and enter the full instance connection name in the format project id region instance id to delete a connection hold your cursor to the right of the connection to display the delete delete icon and click it note for more information about adding cloud sql connections to a service that you re creating see deploying a new service click create or deploy command line before using any of the following commands make the following replacements image with the image you re deploying service_name with the name of your cloud run service instance_connection_name with the instance connection name of your cloud sql instance or a comma delimited list of connection names if you re deploying a new container use the following command gcloud run deploy image image add cloudsql instances instance_connection_name if you re updating an existing service use the following command gcloud run services update service_name add cloudsql instances instance_connection_name terraform the following code creates a base cloud run container with a connected cloud sql instance resource google_cloud_run_v2_service default name cloudrun service location us central1 deletion_protection false set to true in production template containers image us docker pkg dev cloudrun container hello latest image to deploy volume_mounts name cloudsql mount_path cloudsql volumes name cloudsql cloud_sql_instance instances google_sql_database_instance default connection_name client terraform depends_on google_project_service secretmanager_api google_project_service cloudrun_api google_project_service sqladmin_api apply the changes by entering terraform apply verify the changes by checking the cloud run service clicking the revisions tab and then the connections tab private ip if the authorizing service account belongs to a different project than the one containing the cloud sql instance do the following in both projects enable the cloud sql admin api for the service account in the project that contains the cloud sql instance add the iam permissions direct vpc egress and connectors use private ip addresses to handle communication to your vpc network to connect directly with private ip addresses using one of these egress methods do the following make sure that the cloud sql instance created previously has a private ip address to add an internal ip address see configure private ip configure your egress method to connect to the same vpc network as your cloud sql instance note the following conditions direct vpc egress and serverless vpc access both support communication to vpc networks connected using cloud vpn and vpc network peering direct vpc egress and serverless vpc access don t support legacy networks unless you re using shared vpc a connector must share the same project and region as the resource that uses it although the connector can send traffic to resources in different regions connect using your instance s private ip address and port 3306 connect to cloud sql after you configure cloud run you can connect to your cloud sql instance public ip default warning if you re using a first generation execution environment for your cloud run service then you can connect only to a cloud sql instance that s configured with the per instance certificate authority ca option google_managed_internal_ca as its server ca mode the first generation execution environment of cloud run embeds the cloud sql auth proxy v1 for more information about connection requirements to cloud sql for the cloud sql auth proxy see requirements for using the cloud sql auth proxy for public ip paths cloud run can be set up to use the cloud sql auth proxy for encryption in two ways through unix sockets by using a cloud sql connector connect with unix sockets once correctly configured you can connect your service to your cloud sql instance s unix domain socket accessed on the environment s filesystem at the following path cloudsql instance_connection_name the instance_connection_name uses the format project region instance id you can find it on the overview page for your instance in the google cloud console or by running the following command gcloud sql instances describe instance_name these connections are automatically encrypted without any additional configuration the code samples shown below are extracts from more complete examples on the github site click view on github to see more warning linux based operating systems have a maximum socket path length of 108 characters if the total length of the path exceeds this length you cannot connect with a socket from cloud run python to see this snippet in the context of a web application view the readme on github import os import sqlalchemy def connect_unix_socket sqlalchemy engine base engine initializes a unix socket connection pool for a cloud sql instance of mysql note saving credentials in environment variables is convenient but not secure consider a more secure solution such as cloud secret manager https cloud google com secret manager to help keep secrets safe db_user os environ db_user e g my database user db_pass os environ db_pass e g my database password db_name os environ db_name e g my database unix_socket_path os environ instance_unix_socket e g cloudsql project region instance pool sqlalchemy create_engine equivalent url mysql pymysql db_user db_pass db_name unix_socket socket_path cloud_sql_instance_name sqlalchemy engine url url create drivername mysql pymysql username db_user password db_pass database db_name query unix_socket unix_socket_path return pool java to see this snippet in the context of a web application view the readme on github import com zaxxer hikari hikariconfig import com zaxxer hikari hikaridatasource import javax sql datasource public class connectorconnectionpoolfactory extends connectionpoolfactory note saving credentials in environment variables is convenient but not secure consider a more secure solution such as cloud secret manager https cloud google com secret manager to help keep secrets safe private static final string instance_connection_name system getenv instance_connection_name private static final string instance_unix_socket system getenv instance_unix_socket private static final string db_user system getenv db_user private static final string db_pass system getenv db_pass private static final string db_name system getenv db_name public static datasource createconnectionpool the configuration object specifies behaviors for the connection pool hikariconfig config new hikariconfig the following url is equivalent to setting the config options below jdbc mysql db_name cloudsqlinstance instance_connection_name socketfactory com google cloud sql mysql socketfactory user db_user password db_pass see the link below for more info on building a jdbc url for the cloud sql jdbc socket factory https github com googlecloudplatform cloud sql jdbc socket factory creating the jdbc url configure which instance and what database user to connect with config setjdbcurl string format jdbc mysql s db_name config setusername db_user e g root mysql config setpassword db_pass e g my password config adddatasourceproperty socketfactory com google cloud sql mysql socketfactory config adddatasourceproperty cloudsqlinstance instance_connection_name unix sockets are not natively supported in java so it is necessary to use the cloud sql java connector to connect when setting instance_unix_socket the connector will call an external package that will enable unix socket connections note for java users the cloud sql java connector can provide authenticated connections which is usually preferable to using the cloud sql proxy with unix sockets see https github com googlecloudplatform cloud sql jdbc socket factory for details if instance_unix_socket null config adddatasourceproperty unixsocketpath instance_unix_socket cloudsqlrefreshstrategy set to lazy is used to perform a refresh when needed rather than on a scheduled interval this is recommended for serverless environments to avoid background refreshes from throttling cpu config adddatasourceproperty cloudsqlrefreshstrategy lazy specify additional connection properties here initialize the connection pool using the configuration object return new hikaridatasource config node js to see this snippet in the context of a web application view the readme on github const mysql require promise mysql createunixsocketpool initializes a unix socket connection pool for a cloud sql instance of mysql const createunixsocketpool async config note saving credentials in environment variables is convenient but not secure consider a more secure solution such as cloud secret manager https cloud google com secret manager to help keep secrets safe return mysql createpool user process env db_user e g my db user password process env db_pass e g my db password database process env db_name e g my database socketpath process env instance_unix_socket e g cloudsql project region instance specify additional properties here config c to see this snippet in the context of a web application view the readme on github using mysql data mysqlclient using system namespace cloudsql public class mysqlunix public static mysqlconnectionstringbuilder newmysqlunixsocketconnectionstring equivalent connection string server instance_unix_socket uid db_user pwd db_pass database db_name protocol unix var connectionstring new mysqlconnectionstringbuilder the cloud sql proxy provides encryption between the proxy and instance sslmode mysqlsslmode disabled note saving credentials in environment variables is convenient but not secure consider a more secure solution such as cloud secret manager https cloud google com secret manager to help keep secrets safe server environment getenvironmentvariable instance_unix_socket e g cloudsql project region instance userid environment getenvironmentvariable db_user e g my db user password environment getenvironmentvariable db_pass e g my db password database environment getenvironmentvariable db_name e g my database connectionprotocol mysqlconnectionprotocol unixsocket connectionstring pooling true specify additional properties here return connectionstring go to see this snippet in the context of a web application view the readme on github package cloudsql import database sql fmt log os _ github com go sql driver mysql connectunixsocket initializes a unix socket connection pool for a cloud sql instance of mysql func connectunixsocket sql db error mustgetenv func k string string v os getenv k if v log fatalf fatal error in connect_unix go s environment variable not set k return v note saving credentials in environment variables is convenient but not secure consider a more secure solution such as cloud secret manager https cloud google com secret manager to help keep secrets safe var dbuser mustgetenv db_user e g my db user dbpwd mustgetenv db_pass e g my db password dbname mustgetenv db_name e g my database unixsocketpath mustgetenv instance_unix_socket e g cloudsql project region instance dburi fmt sprintf s s unix s s parsetime true dbuser dbpwd unixsocketpath dbname dbpool is the pool of database connections dbpool err sql open mysql dburi if err nil return nil fmt errorf sql open w err return dbpool nil ruby to see this snippet in the context of a web application view the readme on github unix unix adapter mysql2 configure additional properties here note saving credentials in environment variables is convenient but not secure consider a more secure solution such as cloud secret manager https cloud google com secret manager to help keep secrets safe username env db_user e g my database user password env db_pass e g my database password database env fetch db_name vote_development specify the unix socket path as host socket env instance_unix_socket php to see this snippet in the context of a web application view the readme on github namespace google cloud samples cloudsql mysql use pdo use pdoexception use runtimeexception use typeerror class databaseunix public static function initunixdatabaseconnection pdo try note saving credentials in environment variables is convenient but not secure consider a more secure solution such as cloud secret manager https cloud google com secret manager to help keep secrets safe username getenv db_user e g your_db_user password getenv db_pass e g your_db_password dbname getenv db_name e g your_db_name instanceunixsocket getenv instance_unix_socket e g cloudsql project region instance connect using unix sockets dsn sprintf mysql dbname s unix_socket s dbname instanceunixsocket connect to the database conn new pdo dsn username password catch typeerror e throw new runtimeexception sprintf invalid or missing configuration make sure you have set username password dbname and instanceunixsocket for unix socket mode the php error was s e getmessage int e getcode e catch pdoexception e throw new runtimeexception sprintf could not connect to the cloud sql database check that your username and password are correct that the cloud sql proxy is running and that the database exists and is ready for use for more a...
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