"istio.io/istio/pkg/util/sets"
)

// Constants for duration fields
const (
	// UnixAddressPrefix is the prefix used to indicate an address is for a Unix Domain socket. It is used in
	// ServiceEntry.Endpoint.Address message.
	UnixAddressPrefix = "unix://"

	matchExact  = "exact:"
	matchPrefix = "prefix:"
)

var validHeaderRegex = regexp.MustCompile("^[-_A-Za-z0-9]+$")

const (
	kb = 1024
	mb = 1024 * kb
)