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The bridge network driver option com.docker.network.bridge.host_binding_ipv4 can be used to modify the default address for published ports. Despite the option's name, it is possible to specify an IPv6 address.
Multi-host networking. When deploying a Compose application on a Docker Engine with Swarm mode enabled, you can make use of the built-in overlay driver to enable multi-host communication. Overlay networks are always created as attachable. You can optionally set the attachable property to false.
Adding network_mode: bridge to each service in your docker-compose.yml will stop compose from creating a network. If any service is not configured with this bridge (or host), a network will be created.
A bridge driver can be used to create an internal network within a single Docker host. A network created using the bridge driver forms a namespace that is separate from the host's network namespace. Therefore, containers running on bridge networks are isolated from the host's network.
Bridge network. In Docker, the bridge network is the default network type. When you don’t specify a custom network in your Docker Compose file, Docker automatically connects your containers to the default bridge network. This makes sure they can communicate with each other.
I have a docker-compose yml with several services which are in a user defined network (on bridge mode). I want to connect one on my service on the default docker bridge in order to expose a port to the outside world. To summarize, there is a concrete example of what I want to do:
By default, when no specific network is specified in the compose.yaml file, Compose creates a default network using the default driver bridge, which allows communication between the containers on the same host.
bridge: The default network driver. If you don't specify a driver, this is the type of network you are creating. Bridge networks are commonly used when your application runs in a container that needs to communicate with other containers on the same host. See Bridge network driver.
Docker Compose automatically generates a default bridge network with a name derived from the directory containing the current Compose file. For instance, a Compose file located at /app/docker-compose.yml would result in a network named app_default.
Use a network created outside of docker-compose (an "external" network) with docker-compose version 3.5+. Further explanation can be found here. First docker-compose.yml file should define network with name giveItANamePlease as follows. networks: my-network: name: giveItANamePlease driver: bridge