We already have the Cloud SQL proxy credentials in secrets/elixirdrip-prod-sql.json, so we now just have to create a secret based on this file. In the following snippet, we're creating a cloudsql-proxy-credentials secret that contains a file-based value named credentials.json, hence the --from-file option:
$ kubectl -n production create secret generic cloudsql-proxy-credentials --from-file=credentials.json=secrets/elixirdrip-prod-sql.jsonsecret "cloudsql-proxy-credentials" created
We will also need to pass the database user credentials to the application container. The following cloudsql-postgres-credentials secret has two literal values, named username and password:
$ kubectl -n production create secret generic cloudsql-postgres-credentials ...
