// fetchAllInstances returns a map[string]environs.Instance representing
// a mapping of instance ids to their respective instance.
func fetchAllInstances(env environs.Environ) (map[state.InstanceId]environs.Instance, error) {
m := make(map[state.InstanceId]environs.Instance)
insts, err := env.AllInstances()
if err != nil {
return nil, err
}
for _, i := range insts {
m[i.Id()] = i
}
return m, nil
}
