本文整理匯總了Golang中github.com/juju/juju/state.Unit.Constraints方法的典型用法代碼示例。如果您正苦於以下問題：Golang Unit.Constraints方法的具體用法？Golang Unit.Constraints怎麽用？Golang Unit.Constraints使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/juju/juju/state.Unit的用法示例。
在下文中一共展示了Unit.Constraints方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: addMachineForUnit
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)
}