func (s *runSuite) addUnit(c *gc.C, service *state.Service) *state.Unit {
unit, err := service.AddUnit()
c.Assert(err, gc.IsNil)
err = unit.AssignToNewMachine()
c.Assert(err, gc.IsNil)
mId, err := unit.AssignedMachineId()
c.Assert(err, gc.IsNil)
machine, err := s.State.Machine(mId)
c.Assert(err, gc.IsNil)
machine.SetAddresses(instance.NewAddress("10.3.2.1", instance.NetworkUnknown))
return unit
}
func (s *HookContextSuite) AddUnit(c *gc.C, svc *state.Service) *state.Unit {
unit, err := svc.AddUnit()
c.Assert(err, gc.IsNil)
s.machine, err = s.State.AddMachine("quantal", state.JobHostUnits)
c.Assert(err, gc.IsNil)
err = unit.AssignToMachine(s.machine)
c.Assert(err, gc.IsNil)
name := strings.Replace(unit.Name(), "/", "-", 1)
privateAddr := instance.NewAddress(name+".testing.invalid", instance.NetworkCloudLocal)
err = s.machine.SetAddresses(privateAddr)
c.Assert(err, gc.IsNil)
return unit
}
func addRU(c *gc.C, svc *state.Service, rel *state.Relation, principal *state.Unit) (*state.Unit, *state.RelationUnit) {
// Given the service svc in the relation rel, add a unit of svc and create
// a RelationUnit with rel. If principal is supplied, svc is assumed to be
// subordinate and the unit will be created by temporarily entering the
// relation's scope as the principal.
var u *state.Unit
if principal == nil {
unit, err := svc.AddUnit()
c.Assert(err, gc.IsNil)
u = unit
} else {
origUnits, err := svc.AllUnits()
c.Assert(err, gc.IsNil)
pru, err := rel.Unit(principal)
c.Assert(err, gc.IsNil)
err = pru.EnterScope(nil) // to create the subordinate
c.Assert(err, gc.IsNil)
err = pru.LeaveScope() // to reset to initial expected state
c.Assert(err, gc.IsNil)
newUnits, err := svc.AllUnits()
c.Assert(err, gc.IsNil)
for _, unit := range newUnits {
found := false
for _, old := range origUnits {
if unit.Name() == old.Name() {
found = true
break
}
}
if !found {
u = unit
break
}
}
c.Assert(u, gc.NotNil)
}
preventUnitDestroyRemove(c, u)
ru, err := rel.Unit(u)
c.Assert(err, gc.IsNil)
return u, ru
}
func (s *SSHCommonSuite) addUnit(srv *state.Service, m *state.Machine, c *gc.C) {
u, err := srv.AddUnit()
c.Assert(err, gc.IsNil)
err = u.AssignToMachine(m)
c.Assert(err, gc.IsNil)
}
// AddUnits starts n units of the given service and allocates machines
// to them as necessary.
func AddUnits(st *state.State, svc *state.Service, n int, machineIdSpec string) ([]*state.Unit, error) {
units := make([]*state.Unit, n)
// Hard code for now till we implement a different approach.
policy := state.AssignCleanEmpty
// All units should have the same networks as the service.
includeNetworks, excludeNetworks, err := svc.Networks()
if err != nil {
return nil, fmt.Errorf("cannot get service %q networks: %v", svc.Name(), err)
}
// TODO what do we do if we fail half-way through this process?
for i := 0; i < n; i++ {
unit, err := svc.AddUnit()
if err != nil {
return nil, fmt.Errorf("cannot add unit %d/%d to service %q: %v", i+1, n, svc.Name(), err)
}
if machineIdSpec != "" {
if n != 1 {
return nil, fmt.Errorf("cannot add multiple units of service %q to a single machine", svc.Name())
}
// machineIdSpec may be an existing machine or container, eg 3/lxc/2
// or a new container on a machine, eg lxc:3
mid := machineIdSpec
var containerType instance.ContainerType
specParts := strings.SplitN(machineIdSpec, ":", 2)
if len(specParts) > 1 {
firstPart := specParts[0]
var err error
if containerType, err = instance.ParseContainerType(firstPart); err == nil {
mid = specParts[1]
} else {
mid = machineIdSpec
}
}
if !names.IsMachine(mid) {
return nil, fmt.Errorf("invalid force machine id %q", mid)
}
var err error
var m *state.Machine
// If a container is to be used, create it.
if containerType != "" {
// Create the new machine marked as dirty so that
// nothing else will grab it before we assign the unit to it.
template := state.MachineTemplate{
Series: unit.Series(),
Jobs: []state.MachineJob{state.JobHostUnits},
Dirty: true,
IncludeNetworks: includeNetworks,
ExcludeNetworks: excludeNetworks,
}
m, err = st.AddMachineInsideMachine(template, mid, containerType)
} else {
m, err = st.Machine(mid)
}
if err != nil {
return nil, fmt.Errorf("cannot assign unit %q to machine: %v", unit.Name(), err)
}
err = unit.AssignToMachine(m)
if err != nil {
return nil, err
}
} else if err := st.AssignUnit(unit, policy); err != nil {
return nil, err
}
units[i] = unit
}
return units, nil
}