How to access RabbitMQ service (on host machine) from Spring boot docker container running on same machine

Question

Environment Details

Windows 10

Docker Desktop

Spring Boot ( Using it inside Container)

RabbitMQ ( Installed on my windows machine as a Service)

I would like to access RabbitMQ service from the Spring Boot Container. I provided below properties inside application.properties

batch.rabbitmq.host=localhost
batch.rabbitmq.port=5672
batch.rabbitmq.username=guest
batch.rabbitmq.password=guest
server.port=8083

I am running my spring boot app as

docker run -p 8083:8083 dockerdemo

I can access the RabbitMQ management console using localhost:15672 but my spring boot application unable to connect it.

It throw connection

java.net.ConnectException: Connection refused (Connection refused)

What do I need to change, Please suggest.

Answer 1

From inside the container localhost is resolved to inside the container not the physical host machine. So you need to change the setting to something like this

batch.rabbitmq.host=[HOST_NAME OR IP Address]