Function convertExtraHostsToSwarmHosts

cli/command/service/opts.go:533–542

convertExtraHostsToSwarmHosts converts an array of extra hosts in cli : into a swarmkit host format: IP_address canonical_hostname [aliases...] This assumes input value ( : ) has already been validated

(extraHosts []string)

//
// This assumes input value (<host>:<ip>) has already been validated
func convertExtraHostsToSwarmHosts(extraHosts []string) []string {
	hosts := make([]string, 0, len(extraHosts))
	for _, extraHost := range extraHosts {
		host, ip, ok := strings.Cut(extraHost, ":")
		if ok {
			hosts = append(hosts, ip+" "+host)
		}
	}
	return hosts
}

type serviceOptions struct {
	detach bool