Overview
Networks lists Docker networks on the host — driver, subnet/gateway, options, and attached containers.
Foster database, S3, and related services typically attach to foster_network (bridge, attachable).
Create & attach
- Create a network with a name, driver (usually bridge), and attachable flag when needed.
- Connect or disconnect a container to/from a network (disconnect can force).
- Remove a network by name or id when it is unused.
Use attach counts from inspect as the source of truth before deleting a network.
Notes
Removing a network fails or breaks apps if containers still depend on it.
Leave built-in networks (
bridge, host, none) alone unless you know why you are changing them.