title: CloudRun Suddenly got `Improper path /cloudsql/{SQL_CONNECTION_NAME} to connect to Postgres Cloud SQL instance "{SQL_CONNECTION_NAME}"`
body: <p>We have been running a service using NestJS and TypeORM on fully managed CloudRun without issues for several months. Yesterday PM we started getting <code>Improper path /cloudsql/{SQL_CONNECTION_NAME} to connect to Postgres Cloud SQL instance &quot;{SQL_CONNECTION_NAME}&quot;</code> errors in our logs.</p>
  <p>We didn't make any server/SQL changes around this timestamp. Currently there is no impact to the service so we are not sure if this is a serious issue.</p>
  <p>This error is not from our code, and our third party modules shouldn't know if we use Cloud SQL, so I have no idea where this errors come from.</p>
  <p>My assumption is Cloud SQL Proxy or any SQL client used in Cloud Run is making this error. We use --add-cloudsql-instances flag when deploying with &quot;gcloud run deploy&quot; CLI command.</p>
  <p>Link to the issue <a href="https://issuetracker.google.com/issues/188462249" rel="noreferrer">here</a></p>