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ceph-csi/internal/util/cephconf.go

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/*
Copyright 2018 The 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 (
"os"
)
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var cephConfig = []byte(`[global]
auth_cluster_required = cephx
auth_service_required = cephx
auth_client_required = cephx
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`)
const (
cephConfigRoot = "/etc/ceph"
// CephConfigPath ceph configuration file.
CephConfigPath = "/etc/ceph/ceph.conf"
keyRing = "/etc/ceph/keyring"
)
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func createCephConfigRoot() error {
return os.MkdirAll(cephConfigRoot, 0o755) // #nosec
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}
// WriteCephConfig writes out a basic ceph.conf file, making it easy to use
// ceph related CLIs.
func WriteCephConfig() error {
var err error
if err = createCephConfigRoot(); err != nil {
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return err
}
// create config file if it does not exist to support backward compatibility
if _, err = os.Stat(CephConfigPath); os.IsNotExist(err) {
err = os.WriteFile(CephConfigPath, cephConfig, 0o600)
}
if err != nil {
return err
}
return createKeyRingFile()
}
/*
if any ceph commands fails it will log below error message
7f39ff02a700 -1 auth: unable to find a keyring on
/etc/ceph/ceph.client.admin.keyring,/etc/ceph/ceph.keyring,/etc/ceph/keyring,
/etc/ceph/keyring.bin,: (2) No such file or directory
*/
// createKeyRingFile creates the keyring files to fix above error message logging.
func createKeyRingFile() error {
var err error
// create keyring file if it does not exist to support backward compatibility
if _, err = os.Stat(keyRing); os.IsNotExist(err) {
_, err = os.Create(keyRing)
}
return err
}