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I'm running containers with the docker run command and would like to add them to the same network such that each container is able to connect to each other using the container name.
I tried the following command: docker run --network=bridge (default docker network), but the containers couldn't connect to each other with their names.
How can I make it work?
209
So there is no conflict if multiple containers are using the same port ( :80 in this case). You can access one container from another using its container-name or service-name or ip-address, whereas ip-address is not a good idea because this might change every time you (re)start the container.
A Docker image executes code in a Docker container. You add a writable layer of core functionalities on a Docker image to create a running container. Think of a Docker container as a running image instance. You can create many containers from the same image, each with its own unique data and state.
First, define your user-defined bridge network:
docker network create your-network-name
Then, connect your containers to the network that you just created:
docker network connect your-network-name container-name
Or connect with the run command:
docker run --network=your-network-name your-image
Now, containers in the same network your-network-name can talk to each others via container name.
192
You can attach a network to an existing container using this docker command:
docker network connect network-name container-name
Then, you can inspect using the network interface that you create that container was successfully connected or not.
docker inspect network-name
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