// PrivateAddress implements the server side of Client.PrivateAddress.
func (c *Client) PrivateAddress(p params.PrivateAddress) (results params.PrivateAddressResults, err error) {
switch {
case names.IsMachine(p.Target):
machine, err := c.api.state.Machine(p.Target)
if err != nil {
return results, err
}
addr := instance.SelectInternalAddress(machine.Addresses(), false)
if addr == "" {
return results, fmt.Errorf("machine %q has no internal address", machine)
}
return params.PrivateAddressResults{PrivateAddress: addr}, nil
case names.IsUnit(p.Target):
unit, err := c.api.state.Unit(p.Target)
if err != nil {
return results, err
}
addr, ok := unit.PrivateAddress()
if !ok {
return results, fmt.Errorf("unit %q has no internal address", unit)
}
return params.PrivateAddressResults{PrivateAddress: addr}, nil
}
return results, fmt.Errorf("unknown unit or machine %q", p.Target)
}
// PrivateAddress returns the private address of the unit and whether it is valid.
func (u *Unit) PrivateAddress() (string, bool) {
var privateAddress string
addresses := u.addressesOfMachine()
if len(addresses) > 0 {
privateAddress = instance.SelectInternalAddress(addresses, false)
}
return privateAddress, privateAddress != ""
}