GCloud secrets not resolving in spring properties - spring

Question

TL;DR: the GCP secrets are not resolved in bootstrap file but the sql starter requires an instance connection name and database name on bootstrap
I'm trying to incorporate GCP Secretmanager in a Spring Boot application that is running on Google App Engine and using the GCP SQL.
However the ${sm:// prefix doesn't seem to be resolved at bootstrap time.
For reference, this is my part of my pom. (I'm using the com.google.cloud dependencies) And I enable the spring profile "gcp"
<parent>
<artifactId>spring-boot-starter-parent</artifactId>
<groupId>org.springframework.boot</groupId>
<relativePath/>
<version>2.4.2</version> <!-- lookup parent from repository -->
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>spring-cloud-gcp-dependencies</artifactId>
<version>2.0.1</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<!-- ... -->
<!-- cloud -->
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>spring-cloud-gcp-starter</artifactId>
</dependency>
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>spring-cloud-gcp-starter-sql-postgresql</artifactId>
</dependency>
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>spring-cloud-gcp-starter-secretmanager</artifactId>
</dependency>
And in my bootstrap (for example)
spring:
cloud:
gcp:
sql:
database-name: ${sm://some-fancy-db-secret}
instance-connection-name: ${sm://some-cool-connection-name}
When deploying I get an exception stating that a database-name needs to be defined.
If I fill in the plain properties it works just fine.
Even the ${sm://db-username} works inside my application-gcp.yml file.
When I move the property from the bootstrap file it also fails.
It seems it needs the connection when bootstrapping. (I'm a bit in the dark about that)
There's no fancy multi-project going on, and yes the secret exists.
I have a feeling I'm missing something stupid here or there's a version mismatch somewhere.
(The Codelab doesn't seem to be mentioning anything special at all.)
I also checked this question. However the proposed answer doesn't seem to be valid anymore. The com.google.cloud.spring.autoconfigure.secretmanager.GcpSecretManagerProperties don't even contain a prefix property, besides it works just fine in my normal properties file.

Answer 1

Has been fixed in the latest release.