func addMachineForUnit(st *state.State, unit *state.Unit, placement *instance.Placement, networks []string) (*state.Machine, error) {
unitCons, err := unit.Constraints()
if err != nil {
return nil, err
}
var containerType instance.ContainerType
var mid, placementDirective string
// Extract container type and parent from container placement directives.
if containerType, err = instance.ParseContainerType(placement.Scope); err == nil {
mid = placement.Directive
} else {
switch placement.Scope {
case st.EnvironUUID():
placementDirective = placement.Directive
case instance.MachineScope:
mid = placement.Directive
default:
return nil, errors.Errorf("invalid environment UUID %q", placement.Scope)
}
}
// Create any new machine marked as dirty so that
// nothing else will grab it before we assign the unit to it.
// If a container is to be used, create it.
if containerType != "" {
template := state.MachineTemplate{
Series: unit.Series(),
Jobs: []state.MachineJob{state.JobHostUnits},
Dirty: true,
Constraints: *unitCons,
RequestedNetworks: networks,
}
return st.AddMachineInsideMachine(template, mid, containerType)
}
// If a placement directive is to be used, do that here.
if placementDirective != "" {
template := state.MachineTemplate{
Series: unit.Series(),
Jobs: []state.MachineJob{state.JobHostUnits},
Dirty: true,
Constraints: *unitCons,
RequestedNetworks: networks,
Placement: placementDirective,
}
return st.AddOneMachine(template)
}
// Otherwise use an existing machine.
return st.Machine(mid)
}
// initBootstrapMachine initializes the initial bootstrap machine in state.
func initBootstrapMachine(c agent.ConfigSetter, st *state.State, args InitializeStateParams) (*state.Machine, error) {
logger.Infof("initialising bootstrap machine with config: %+v", args)
jobs := make([]state.MachineJob, len(args.BootstrapMachineJobs))
for i, job := range args.BootstrapMachineJobs {
machineJob, err := machineJobFromParams(job)
if err != nil {
return nil, errors.Errorf("invalid bootstrap machine job %q: %v", job, err)
}
jobs[i] = machineJob
}
var hardware instance.HardwareCharacteristics
if args.BootstrapMachineHardwareCharacteristics != nil {
hardware = *args.BootstrapMachineHardwareCharacteristics
}
m, err := st.AddOneMachine(state.MachineTemplate{
Addresses: args.BootstrapMachineAddresses,
Series: series.HostSeries(),
Nonce: agent.BootstrapNonce,
Constraints: args.BootstrapMachineConstraints,
InstanceId: args.BootstrapMachineInstanceId,
HardwareCharacteristics: hardware,
Jobs: jobs,
})
if err != nil {
return nil, errors.Errorf("cannot create bootstrap machine in state: %v", err)
}
if m.Id() != agent.BootstrapMachineId {
return nil, errors.Errorf("bootstrap machine expected id 0, got %q", m.Id())
}
// Read the machine agent's password and change it to
// a new password (other agents will change their password
// via the API connection).
logger.Debugf("create new random password for machine %v", m.Id())
newPassword, err := utils.RandomPassword()
if err != nil {
return nil, err
}
if err := m.SetPassword(newPassword); err != nil {
return nil, err
}
if err := m.SetMongoPassword(newPassword); err != nil {
return nil, err
}
c.SetPassword(newPassword)
return m, nil
}
// initBootstrapMachine initializes the initial bootstrap machine in state.
func initBootstrapMachine(c ConfigSetter, st *state.State, cfg BootstrapMachineConfig) (*state.Machine, error) {
logger.Infof("initialising bootstrap machine with config: %+v", cfg)
jobs := make([]state.MachineJob, len(cfg.Jobs))
for i, job := range cfg.Jobs {
machineJob, err := state.MachineJobFromParams(job)
if err != nil {
return nil, fmt.Errorf("invalid bootstrap machine job %q: %v", job, err)
}
jobs[i] = machineJob
}
m, err := st.AddOneMachine(state.MachineTemplate{
Addresses: cfg.Addresses,
Series: version.Current.Series,
Nonce: BootstrapNonce,
Constraints: cfg.Constraints,
InstanceId: cfg.InstanceId,
HardwareCharacteristics: cfg.Characteristics,
Jobs: jobs,
})
if err != nil {
return nil, fmt.Errorf("cannot create bootstrap machine in state: %v", err)
}
if m.Id() != BootstrapMachineId {
return nil, fmt.Errorf("bootstrap machine expected id 0, got %q", m.Id())
}
// Read the machine agent's password and change it to
// a new password (other agents will change their password
// via the API connection).
logger.Debugf("create new random password for machine %v", m.Id())
newPassword, err := utils.RandomPassword()
if err != nil {
return nil, err
}
if err := m.SetPassword(newPassword); err != nil {
return nil, err
}
if err := m.SetMongoPassword(newPassword); err != nil {
return nil, err
}
c.SetPassword(newPassword)
return m, nil
}