func addVM(backend env.Backend, params *AddVmParams) (result interface{}, err error) {
redis := backend.Redis()
defer redis.Close()
nameLock := vmNameLock(params.Name)
nameLocked, err := redis.Lock(nameLock)
if err != nil || !nameLocked {
return nil, fmt.Errorf("VM with name '%s' is already being created", params.Name)
}
defer redis.Unlock(nameLock)
existing, err := redis.GetString("q:VM:name:" + params.Name)
if existing != "" {
return nil, fmt.Errorf("VM with name '%s' already exists", params.Name)
}
vm := &model.VM{
ID: model.NewGUID(),
Name: params.Name,
MemSizeMB: params.MemSizeMB,
}
tx := redis.Tx().Begin()
tx.Put(vm)
err = tx.Commit()
return "Created", err
}
"log"
"github.com/matobet/verdi/model"
)
type Config struct {
HostID model.GUID `json:"host_id"`
RedisServer string `json:"redis_server"`
CommandTimeout int `json:"command_timeout"`
HTTPPort string `json:"http_port"`
}
var Conf = Config{
RedisServer: ":6379",
HostID: model.NewGUID(),
CommandTimeout: 5,
HTTPPort: ":4000",
}
func Load() error {
configFile, err := ioutil.ReadFile("./config.json")
if err != nil {
log.Println("File 'config.json' not found. Creating one with default configuration ...")
configFile, err = json.MarshalIndent(Conf, "", " ")
if err != nil {
log.Fatal("Failed to write config file!")
}
return ioutil.WriteFile("./config.json", configFile, 0660)
}