netutil

package
v1.25.5 Latest Latest
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Published: Oct 26, 2026 License: Apache-2.0 Imports: 13 Imported by: 0

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Constants

This section is empty.

Variables

This section is empty.

Functions

func AllocateHostPort added in v1.25.5

func AllocateHostPort(ip string, minPort, maxPort int, skip func(port string) bool) string

AllocateHostPort returns a port in [minPort, maxPort] that is free on ip and not rejected by skip, scanning from a random offset so concurrent callers are unlikely to try the same port first. It returns "" when ip can't be bound locally (for example a remote Docker host), or when no port qualifies.

func BaseURLFromFullURL added in v1.23.5

func BaseURLFromFullURL(fullURL string) string

BaseURLFromFullURL returns the base url (http://hostname.example.com) from a URL, without port

func GetLocalIPs added in v1.23.3

func GetLocalIPs() ([]string, error)

GetLocalIPs returns IP addresses associated with the machine

func HasLocalIP added in v1.23.5

func HasLocalIP(ipAddresses []net.IP) bool

HasLocalIP returns true if at least one of the provided IP addresses is assigned to the local computer

func IsHostPortFree added in v1.25.5

func IsHostPortFree(ip string, port int) bool

IsHostPortFree reports whether a TCP listener can bind ip:port right now. It binds instead of dialing, so on Linux it also catches a port held by a socket that isn't listening, such as the local end of an outgoing connection.

func IsPortActive

func IsPortActive(port string) bool

IsPortActive checks to see if the given port on Docker IP is answering.

func IsPortRefused added in v1.25.5

func IsPortRefused(port string) bool

IsPortRefused reports whether a connection to the port on a loopback Docker IP is refused, meaning nothing listens there. It returns false for anything less certain, such as a timeout or a Docker host that isn't on loopback.

func NormalizeURL added in v1.24.3

func NormalizeURL(rawURL string) string

NormalizeURL removes the port from a URL if it is the default port for the scheme

Types

This section is empty.

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