Spring Cloud Stream: Cannot connect to 2 rabbitmq clusters without allowOverride - spring-boot

Question

I have a spring boot application (let's call it example-service) with the following configuration to connect to 2 different rabbitmq clusters.
spring:
cloud:
stream:
defaultBinder: rabbitA
binders:
rabbitA:
inheritEnvironment: false
defaultCandidate: false
type: rabbit
environment:
spring:
rabbitmq:
addresses: rabbitmq-a:5672
username: user-a
password: password-a
rabbitB:
inheritEnvironment: false
defaultCandidate: false
type: rabbit
environment:
spring:
rabbitmq:
addresses: rabbitmq-b:5672
username: user-b
password: password-b
bindings:
dataFromA:
destination: exchange-1
group: queue-1
binder: rabbitA
dataFromB:
destination: exchange-2
group: queue-2
binder: rabbitB
That itself works fine, it connects to both clusters. The problem is that this service is deployed in an environment where there is a spring config server with the following files:
application.yml
spring.rabbitmq:
addresses: rabbitmq-a:5672
username: user-a
password: password-a
Then that seems to override the configuration set for each binder, located under the "environment" property. So I needed to add this extra config.
example-service.yml
spring.cloud:
config:
overrideSystemProperties: false
allowOverride: true
overrideNone: false
Now the example-service connects to both rabbitmq clusters again. But I have observed certain side effects, mainly not being able to override other properties in the config server example-service.yml anymore, which is a real need for me. So I have discarded using allowOverride and its related properties.
The question is... is it possible to make it work without using allowOverride, while keeping the spring.rabbitmq.addresses/username/password in the remote config server application.yml?
Thank you very much in advance.
Kind regards.

Answer 1

Which version are you using? I just tested it with 3.0.6 and it works fine:
spring:
cloud:
stream:
binders:
rabbitA:
type: rabbit
inherit-environment: false
environment:
spring:
rabbitmq:
virtual-host: A
rabbitB:
type: rabbit
inherit-environment: false
environment:
spring:
rabbitmq:
virtual-host: B
bindings:
input1:
binder: rabbitA
destination: input1
group: foo
input2:
binder: rabbitB
destination: input2
group: bar
rabbitmq:
virtual-host: /
Probably not related, but your group indentation is wrong.