func WriteConfig(stateStore fi.StateStore, cluster *Cluster, groups []*InstanceGroup) error {
// Check for instancegroup Name duplicates before writing
{
names := map[string]bool{}
for i, ns := range groups {
if ns.Name == "" {
return fmt.Errorf("InstanceGroup #%d did not have a Name", i+1)
}
if names[ns.Name] {
return fmt.Errorf("Duplicate InstanceGroup Name found: %q", ns.Name)
}
names[ns.Name] = true
}
}
if cluster.CreationTimestamp.IsZero() {
cluster.CreationTimestamp = unversioned.NewTime(time.Now().UTC())
}
err := stateStore.WriteConfig("config", cluster)
if err != nil {
return fmt.Errorf("error writing updated cluster configuration: %v", err)
}
for _, ns := range groups {
if ns.CreationTimestamp.IsZero() {
ns.CreationTimestamp = unversioned.NewTime(time.Now().UTC())
}
err = stateStore.WriteConfig("instancegroup/"+ns.Name, ns)
if err != nil {
return fmt.Errorf("error writing updated instancegroup configuration: %v", err)
}
}
return nil
}
