Docker Networking

Trigger

Use this skill when:

• Creating custom Docker networks for multi-container apps
• Configuring port mapping between host and container
• Troubleshooting DNS resolution between containers
• Choosing between bridge, host, overlay, or macvlan drivers
• Setting up network aliases for service discovery
• Isolating containers on separate networks for security
• Debugging connectivity failures between containers

Required Inputs

• Network driver needed (bridge, host, overlay, macvlan)
• Containers or services that need to communicate
• Port mapping requirements (host:container)
• Whether running single-host or multi-host (Swarm/K8s)