// Info - return info about donut configuration
func (dt donut) Info() (nodeDiskMap map[string][]string, err error) {
nodeDiskMap = make(map[string][]string)
for nodeName, node := range dt.nodes {
disks, err := node.ListDisks()
if err != nil {
return nil, iodine.New(err, nil)
}
diskList := make([]string, len(disks))
for diskOrder, disk := range disks {
diskList[diskOrder] = disk.GetPath()
}
nodeDiskMap[nodeName] = diskList
}
return nodeDiskMap, nil
}
// SaveConfig - save donut configuration
func (dt donut) SaveConfig() error {
nodeDiskMap := make(map[string][]string)
for hostname, node := range dt.nodes {
disks, err := node.ListDisks()
if err != nil {
return iodine.New(err, nil)
}
for order, disk := range disks {
donutConfigPath := filepath.Join(dt.name, donutConfig)
donutConfigWriter, err := disk.CreateFile(donutConfigPath)
defer donutConfigWriter.Close()
if err != nil {
return iodine.New(err, nil)
}
nodeDiskMap[hostname][order] = disk.GetPath()
jenc := json.NewEncoder(donutConfigWriter)
if err := jenc.Encode(nodeDiskMap); err != nil {
return iodine.New(err, nil)
}
}
}
return nil
}