Spring boot App使用Google云Mysql部署到Heroku

Question

I have spring boot app and I want to deploy Heroku. But my database at Google cloud. The app connect to database when I deploy to local tomcat server but Heroku can not connect to database.

• my datasource is correct because I connect to database from my local app.

1) Local app connects because I use 'gcloud auth application-default login' command and the './mvnw -DskipTests spring-boot:run' as a result I connect to google cloud mysql database.

2) when I give an my ip to google for my sql connection, the app connects but heroku doesn't. In this case I need to my heroku apps' ip.

Caused by: java.lang.RuntimeException: Unable to obtain credentials to communicate with the Cloud SQL API
    at com.google.cloud.sql.mysql.SslSocketFactory$ApplicationDefaultCredentialFactory.create(SslSocketFactory.java:548)
    at com.google.cloud.sql.mysql.SslSocketFactory.getInstance(SslSocketFactory.java:141)
    at com.google.cloud.sql.mysql.SocketFactory.connect(SocketFactory.java:47)
    at com.mysql.jdbc.SocketFactoryWrapper.connect(SocketFactoryWrapper.java:57)
    at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65)
    at com.mysql.cj.NativeSession.connect(NativeSession.java:152)
    at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:955)
    ... 82 common frames omitted

Answer 1

The Cloud SQL JDBC Socket Factory uses the Application Default Credentials (ADC) strategy for finding credentials.

You can manually supply credentials using the GOOGLE_APPLICATION_CREDENTIALS enviroment variable to point to a service account. You can find more detailed instructions here .