/* Copyright 2019 ceph-csi authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package util import ( "fmt" "io/ioutil" "path" ) /* FileConfig is a ConfigStore interface implementation that reads configuration information from files. BasePath defines the directory under which FileConfig will attempt to open and read contents of various Ceph cluster configurations. Each Ceph cluster configuration is stored under a directory named, BasePath/ceph-cluster-<clusterid>, where <clusterid> uniquely identifies and separates the each Ceph cluster configuration. Under each Ceph cluster configuration directory, individual files named as per the ConfigKeys constants in the ConfigStore interface, store the required configuration information. */ type FileConfig struct { BasePath string } // DataForKey reads the appropriate config file, named using key, and returns // the contents of the file to the caller func (fc *FileConfig) DataForKey(clusterid, key string) (data string, err error) { pathToKey := path.Join(fc.BasePath, "ceph-cluster-"+clusterid, key) // #nosec content, err := ioutil.ReadFile(pathToKey) if err != nil || string(content) == "" { err = fmt.Errorf("error fetching configuration for cluster ID (%s). (%s)", clusterid, err) return } data = string(content) return }