Access service running in docker container from inside another docker container

Question

At the moment I\'m running a node.js application inside a docker container which needs to connect to camunda, which runs in another container.

I start the container

Answer 1

Original answer below. Note that link has been deprecated and the recommended replacement is network. That is explained in the answer to this question: docker-compose: difference between network and link

-- Use the --link camunda:camunda option for your app container. Then you can access camunda via http://camunda:8080/.... The link option adds a entry to the /etc/hosts file of the app container with the IP address of the camunda container. This also means you have to restart your app container if you restart the camunda container.