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