func (context *statusContext) processUnit(unit *state.Unit, serviceCharm string) params.UnitStatus { var result params.UnitStatus addr, err := unit.PublicAddress() if err != nil { // Usually this indicates that no addresses have been set on the // machine yet. addr = network.Address{} logger.Debugf("error fetching public address: %v", err) } result.PublicAddress = addr.Value unitPorts, _ := unit.OpenedPorts() for _, port := range unitPorts { result.OpenedPorts = append(result.OpenedPorts, port.String()) } if unit.IsPrincipal() { result.Machine, _ = unit.AssignedMachineId() } curl, _ := unit.CharmURL() if serviceCharm != "" && curl != nil && curl.String() != serviceCharm { result.Charm = curl.String() } workloadVersion, err := unit.WorkloadVersion() if err == nil { result.WorkloadVersion = workloadVersion } else { logger.Debugf("error fetching workload version: %v", err) } processUnitAndAgentStatus(unit, &result) if subUnits := unit.SubordinateNames(); len(subUnits) > 0 { result.Subordinates = make(map[string]params.UnitStatus) for _, name := range subUnits { subUnit := context.unitByName(name) // subUnit may be nil if subordinate was filtered out. if subUnit != nil { result.Subordinates[name] = context.processUnit(subUnit, serviceCharm) } } } if leader := context.leaders[unit.ApplicationName()]; leader == unit.Name() { result.Leader = true } return result }