Esempio n. 1
0
// extractFilenames returns the filenames from a "list" operation on the
// MAAS API, sorted by name.
func (stor *maasStorage) extractFilenames(listResult gomaasapi.JSONObject) ([]string, error) {
	list, err := listResult.GetArray()
	if err != nil {
		return nil, err
	}
	result := make([]string, len(list))
	for index, entry := range list {
		file, err := entry.GetMap()
		if err != nil {
			return nil, err
		}
		filename, err := file["filename"].GetString()
		if err != nil {
			return nil, err
		}
		result[index] = filename
	}
	sort.Strings(result)
	return result, nil
}
Esempio n. 2
0
// extractFilenames returns the filenames from a "list" operation on the
// MAAS API, sorted by name.
func (stor *maasStorage) extractFilenames(listResult gomaasapi.JSONObject) ([]string, error) {
	privatePrefix := stor.prefixWithPrivateNamespace("")
	list, err := listResult.GetArray()
	if err != nil {
		return nil, err
	}
	result := make([]string, len(list))
	for index, entry := range list {
		file, err := entry.GetMap()
		if err != nil {
			return nil, err
		}
		filename, err := file["filename"].GetString()
		if err != nil {
			return nil, err
		}
		// When listing files we need to return them without our special prefix.
		result[index] = strings.TrimPrefix(filename, privatePrefix)
	}
	sort.Strings(result)
	return result, nil
}
Esempio n. 3
0
// acquireNode allocates a node from the MAAS.
func (environ *maasEnviron) acquireNode(cons constraints.Value, possibleTools tools.List) (gomaasapi.MAASObject, *state.Tools, error) {
	constraintsParams := convertConstraints(cons)
	var result gomaasapi.JSONObject
	var err error
	for a := shortAttempt.Start(); a.Next(); {
		client := environ.getMAASClient().GetSubObject("nodes/")
		result, err = client.CallPost("acquire", constraintsParams)
		if err == nil {
			break
		}
	}
	if err != nil {
		return gomaasapi.MAASObject{}, nil, err
	}
	node, err := result.GetMAASObject()
	if err != nil {
		msg := fmt.Errorf("unexpected result from 'acquire' on MAAS API: %v", err)
		return gomaasapi.MAASObject{}, nil, msg
	}
	tools := possibleTools[0]
	logger.Warningf("picked arbitrary tools %q", tools)
	return node, tools, nil
}