Ejemplo n.º 1
0
func (c *NatCommand) ExecSsh(m *state.Machine, script string) error {
	host := instance.SelectPublicAddress(m.Addresses())
	if host == "" {
		return fmt.Errorf("could not resolve machine's public address")
	}
	log.Println("Configuring NAT routing on machine ", m.Id())
	var options ssh.Options
	cmd := ssh.Command("ubuntu@"+host, []string{"sh -c 'NATCMD=$(mktemp); cat >${NATCMD}; sudo sh -x ${NATCMD}'"}, &options)
	cmd.Stdin = strings.NewReader(script)
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	return cmd.Run()
}
Ejemplo n.º 2
0
func MatchNetworks(host, gateway *state.Machine) (string, string, error) {
	var bestPrefix, bestHost, bestGw string
	for _, hostAddr := range host.Addresses() {
		if hostAddr.Type != instance.Ipv4Address || isLoopback(hostAddr.Value) {
			continue
		}
		for _, gwAddr := range gateway.Addresses() {
			if gwAddr.Type != instance.Ipv4Address || isLoopback(hostAddr.Value) {
				continue
			}
			prefix := greatestCommonPrefix(hostAddr.Value, gwAddr.Value)
			if len(prefix) > len(bestPrefix) {
				bestPrefix = prefix
				bestHost = hostAddr.Value
				bestGw = gwAddr.Value
			}
		}
	}
	if bestHost != "" && bestGw != "" {
		return bestHost, bestGw, nil
	} else {
		return "", "", fmt.Errorf("failed to find common network for %s and %s", host.Id(), gateway.Id())
	}
}