Golang Unit.Name方法代码示例

func (s *UnitSuite) newAgent(c *gc.C, unit *state.Unit) *UnitAgent {
	a := NewUnitAgent(nil, nil)
	s.InitAgent(c, a, "--unit-name", unit.Name(), "--log-to-stderr=true")
	err := a.ReadConfig(unit.Tag().String())
	c.Assert(err, jc.ErrorIsNil)
	return a
}

func (s *AssignSuite) assertAssignedUnit(c *gc.C, unit *state.Unit) string {
	// Get service networks.
	service, err := unit.Service()
	c.Assert(err, jc.ErrorIsNil)
	serviceNetworks, err := service.Networks()
	c.Assert(err, jc.ErrorIsNil)
	serviceCons, err := service.Constraints()
	c.Assert(err, jc.ErrorIsNil)
	// Check the machine on the unit is set.
	machineId, err := unit.AssignedMachineId()
	c.Assert(err, jc.ErrorIsNil)
	// Check that the principal is set on the machine.
	machine, err := s.State.Machine(machineId)
	c.Assert(err, jc.ErrorIsNil)
	machineCons, err := machine.Constraints()
	c.Assert(err, jc.ErrorIsNil)
	machineNetworks, err := machine.RequestedNetworks()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(machineNetworks, gc.DeepEquals, serviceNetworks)
	c.Assert(serviceCons.IncludeNetworks(), gc.DeepEquals, machineCons.IncludeNetworks())
	c.Assert(serviceCons.ExcludeNetworks(), gc.DeepEquals, machineCons.ExcludeNetworks())
	machineUnits, err := machine.Units()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(machineUnits, gc.HasLen, 1)
	// Make sure it is the right unit.
	c.Assert(machineUnits[0].Name(), gc.Equals, unit.Name())
	return machineId
}

// matchUnit attempts to match a state.Unit to one of
// a set of patterns, taking into account subordinate
// relationships.
func (m unitMatcher) matchUnit(u *state.Unit) bool {
	if m.matchesAny() {
		return true
	}

	// Keep the unit if:
	//  (a) its name matches a pattern, or
	//  (b) it's a principal and one of its subordinates matches, or
	//  (c) it's a subordinate and its principal matches.
	//
	// Note: do *not* include a second subordinate if the principal is
	// only matched on account of a first subordinate matching.
	if m.matchString(u.Name()) {
		return true
	}
	if u.IsPrincipal() {
		for _, s := range u.SubordinateNames() {
			if m.matchString(s) {
				return true
			}
		}
		return false
	}
	principal, valid := u.PrincipalName()
	if !valid {
		panic("PrincipalName failed for subordinate unit")
	}
	return m.matchString(principal)
}

func (s *UnitSuite) newAgent(c *gc.C, unit *state.Unit) *UnitAgent {
	a := &UnitAgent{}
	s.initAgent(c, a, "--unit-name", unit.Name())
	err := a.ReadConfig(unit.Tag().String())
	c.Assert(err, gc.IsNil)
	return a
}

func (s *AssignSuite) assertAssignedUnit(c *gc.C, unit *state.Unit) string {
	// Check the machine on the unit is set.
	machineId, err := unit.AssignedMachineId()
	c.Assert(err, jc.ErrorIsNil)
	// Check that the principal is set on the machine.
	machine, err := s.State.Machine(machineId)
	c.Assert(err, jc.ErrorIsNil)
	machineUnits, err := machine.Units()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(machineUnits, gc.HasLen, 1)
	// Make sure it is the right unit.
	c.Assert(machineUnits[0].Name(), gc.Equals, unit.Name())
	return machineId
}

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
}

func (s *serviceSuite) claimLeadership(c *gc.C, unit *state.Unit, service *state.Application) {
	claimer := s.State.LeadershipClaimer()
	err := claimer.ClaimLeadership(service.Name(), unit.Name(), time.Minute)
	c.Assert(err, jc.ErrorIsNil)
}

// processUnitLost determines whether the given unit should be marked as lost.
// TODO(fwereade/wallyworld): this is also model-level code and should sit in
// between state and this package.
func processUnitLost(unit *state.Unit, status *params.UnitStatus) {
	if !canBeLost(status) {
		// The status is allocating or installing - there's no point
		// in enquiring about the agent liveness.
		return
	}
	agentAlive, err := unit.AgentPresence()
	if err != nil {
		return
	}

	if unit.Life() != state.Dead && !agentAlive {
		// If the unit is in error, it would be bad to throw away
		// the error information as when the agent reconnects, that
		// error information would then be lost.
		if status.Workload.Status != params.StatusError {
			status.Workload.Status = params.StatusUnknown
			status.Workload.Info = fmt.Sprintf("agent is lost, sorry! See 'juju status-history %s'", unit.Name())
		}
		status.UnitAgent.Status = params.StatusLost
		status.UnitAgent.Info = "agent is not communicating with the server"
	}
}

func (s *serviceSuite) claimLeadership(c *gc.C, unit *state.Unit, service *state.Service) {
	leadership := leadership.NewLeadershipManager(lease.Manager())
	err := leadership.ClaimLeadership(service.Name(), unit.Name(), time.Minute)
	c.Assert(err, jc.ErrorIsNil)
}

func checkUnitVersion(c *gc.C, appStatus params.ApplicationStatus, unit *state.Unit, expectedVersion string) {
	unitStatus, found := appStatus.Units[unit.Name()]
	c.Check(found, jc.IsTrue)
	c.Check(unitStatus.WorkloadVersion, gc.Equals, expectedVersion)
}