How can you connect a container to a specific network?

Connecting a container to a specific network can be effectively achieved by using the --network option in the docker run command. This command is utilized to create and start a container in a single step, allowing you to specify networking options at launch. By including this option, you can directly assign the container to an existing Docker network, ensuring that it can communicate with other containers on the same network while being isolated from others that are not on that network.

The other methods presented do not accomplish the task as straightforwardly or effectively. For example, using the --network option in the docker create command is also an option; however, it is less convenient since docker create only sets up the container without starting it immediately. Specifying the network in the Dockerfile does not relate to dynamic network connections; rather, it is more about defining configurations that can impact how the container behaves or is built, not how it connects to networks during runtime. Lastly, modifying the Docker daemon configuration pertains to global settings that affect all containers and networks on the host, but it does not provide a way to connect an individual container to a specific network at launch.