将运行在bridge网络上的Docker Container连接到Localhost

Question

I am running localstack (AWS mock service) locally as a docker container. I have another application which tries to connect to it but is getting connection refused error both are java projects. The network I am trying to use is called serview so I run localstack with the following

docker run --net=serview -d -p 4566-4597:4566-4597 --name=localstack -it localstack/localstack:latest

Then I run my other application that wants too access it like this

docker run --net=serview  -it --name sample-publisher -p 1338:1338 --rm sample-publisher:latest

The error I am getting is this

com.amazonaws.SdkClientException: Unable to execute HTTP request: Connect to localhost:4575 [localhost/127.0.0.1] failed: Connection refused (Connection refused)

Running with net=host will work fine but I want to run on the serview network is this possible?

Answer 1

When containers are connected to a common network you should use container names to connect to each other. Container name is a DNS name that will be resolved to container IP over common network.