Failed to connect to Database - Setting up GCP app engine

问题

I'm trying to setup an instance on my phoenix app. I'm actually able to generate the app but I'm getting an error when trying to connect to the DB:

ERROR:

21:11:31.017 [error] Postgrex.Protocol (#PID<0.2223.0>) failed to connect: ** (DBConnection.ConnectionError) tcp connect (/tmp/cloudsql/statcasters:us-central1:statcastersdb): no such file or directory - :enoent

I'm not sure what is wrong? The file seems to exist but it seems to say it doesn't:

prod.secret.exs:

config :statcasters, Statcasters.Repo,
  username: "postgres",
  password: System.get_env("DATABASE_PASSWORD"),
  database: "statcasters_prod",
  socket: "/tmp/cloudsql/statcasters:us-central1:statcastersdb",
  pool_size: 20

I'm not sure what more information I can give? Does anybody know what I could be missing here?

回答1:

There are 2 flavors of App Engine so please see the instructions linked here: https://cloud.google.com/sql/docs/postgres/connect-app-engine

The socket name appears to include a redundant "/tmp" prefix and should start with "/cloudsql/..." for App Engine standard.

来源：https://stackoverflow.com/questions/55201556/failed-to-connect-to-database-setting-up-gcp-app-engine