mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-09 16:00:22 +00:00
92aae4834e
"github.com/pkg/errors" does not offer more functionlity than that we
need from the standard "errors" package. With Golang v1.13 errors can be
wrapped with `fmt.Errorf("... %w", err)`. `errors.Is()` and
`errors.As()` are available as well.
See-also: https://tip.golang.org/doc/go1.13#error_wrapping
Signed-off-by: Niels de Vos <ndevos@redhat.com>
86 lines
2.1 KiB
Go
86 lines
2.1 KiB
Go
/*
|
|
Copyright 2020 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 (
|
|
"errors"
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/ceph/go-ceph/rados"
|
|
)
|
|
|
|
type ClusterConnection struct {
|
|
// connection
|
|
conn *rados.Conn
|
|
|
|
// FIXME: temporary reference for credentials. Remove this when go-ceph
|
|
// is used for operations.
|
|
Creds *Credentials
|
|
}
|
|
|
|
var (
|
|
// large interval and timeout, it should be longer than the maximum
|
|
// time an operation can take (until refcounting of the connections is
|
|
// available)
|
|
cpInterval = 15 * time.Minute
|
|
cpExpiry = 10 * time.Minute
|
|
connPool = NewConnPool(cpInterval, cpExpiry)
|
|
)
|
|
|
|
// rbdVol.Connect() connects to the Ceph cluster and sets rbdVol.conn for further usage.
|
|
func (cc *ClusterConnection) Connect(monitors string, cr *Credentials) error {
|
|
if cc.conn == nil {
|
|
conn, err := connPool.Get(monitors, cr.ID, cr.KeyFile)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to get connection: %w", err)
|
|
}
|
|
|
|
cc.conn = conn
|
|
|
|
// FIXME: remove .Creds from ClusterConnection
|
|
cc.Creds = cr
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (cc *ClusterConnection) Destroy() {
|
|
if cc.conn != nil {
|
|
connPool.Put(cc.conn)
|
|
}
|
|
}
|
|
|
|
func (cc *ClusterConnection) GetIoctx(pool string) (*rados.IOContext, error) {
|
|
if cc.conn == nil {
|
|
return nil, errors.New("cluster is not connected yet")
|
|
}
|
|
|
|
ioctx, err := cc.conn.OpenIOContext(pool)
|
|
if err != nil {
|
|
// ErrNotFound indicates the Pool was not found
|
|
if err == rados.ErrNotFound {
|
|
err = ErrPoolNotFound{pool, err}
|
|
} else {
|
|
err = fmt.Errorf("failed to open IOContext for pool %s: %w", pool, err)
|
|
}
|
|
return nil, err
|
|
}
|
|
|
|
return ioctx, nil
|
|
}
|