func isController(apiState *apiagent.State, tag names.MachineTag) (bool, error) {
machine, err := apiState.Entity(tag)
if err != nil {
return false, errors.Trace(err)
}
for _, job := range machine.Jobs() {
if job.NeedsState() {
return true, nil
}
}
return false, nil
}
func isModelManager(a agent.Agent, st *apiagent.State) (bool, error) {
cfg := a.CurrentConfig()
// Grab the tag and ensure that it's for a machine.
tag, ok := cfg.Tag().(names.MachineTag)
if !ok {
return false, errors.New("this manifold may only be used inside a machine agent")
}
entity, err := st.Entity(tag)
if err != nil {
return false, err
}
for _, job := range entity.Jobs() {
if job == multiwatcher.JobManageModel {
return true, nil
}
}
return false, nil
}