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// docker-proxy provides a network Proxy interface and implementations for TCP
// and UDP.
package main
// ipVersion refers to IP version - v4 or v6
type ipVersion string
const (
// IPv4 is version 4
ip4 ipVersion = "4"
// IPv4 is version 6
ip6 ipVersion = "6"
)
// Proxy defines the behavior of a proxy. It forwards traffic back and forth
// between two endpoints : the frontend and the backend.
// It can be used to do software port-mapping between two addresses.
// e.g. forward all traffic between the frontend (host) 127.0.0.1:3000
// to the backend (container) at 172.17.42.108:4000.
type Proxy interface {
// Run starts forwarding traffic back and forth between the front
// and back-end addresses.
Run()
// Close stops forwarding traffic and close both ends of the Proxy.
Close()
}
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