How do I reach a container through the host's hostname from another container?-CodePudding

I'm running docker 20.10 and docker-compose 1.29.2 on Centos 7.

I have two containers (bitbucket and jenkins) running on myhost using docker-compose. I'm using the default bridge network. The following are the hosts names and services:

host        : service/port   : container/host port mapping
myhost      : apache/80      : <na>
bitbucket   : bitbucket/7990 : 7990:7990
jenkins     : jenkins/8083   : 8083:8083
workstation : <na>           : <na>

From workstation, I get results from curl myhost:80 and I get results from curl myhost:7990.

From jenkins I get results from curl bitbucket:7990 and curl myhost:80 but the problem is I DO NOT from curl myhost:7990.

I need to be able to reach a submodule from jenkins that is in bitbucket, and I want the .gitmodules file to reference the same submodule URL: myhost:7990/scm/project/repo.

I don't have any special network configuration on myhost. I tried adding 7990 to the docker zone (firewall-cmd), but that did not help.

It seems like it is almost working. What is the problem and solution here?

Thank you!

CodePudding user response：

Try using the private IP of the container. If they are in the same network, it should work.

docker inspect <container ID> | grep -w -m1 "IPAddress"

<private IP>:7990/scm/project/repo

CodePudding user response：

What is the problem and solution here?

try by adding link in your docker-compose's service by which It will link two different containers from each other.

Links allow you to define extra aliases by which a service is reachable from another service.