func listPools(conn *rados.Conn, prefix string) {
pools, err := conn.ListPools()
if err != nil {
fmt.Println("error when list pool", err)
os.Exit(1)
}
fmt.Println(prefix, ":", pools)
}
// connect builds up the ceph conn and default pool
func (d *cephRBDVolumeDriver) connect(pool string) error {
log.Printf("INFO: connect() to Ceph via go-ceph, with pool: %s", pool)
// create the go-ceph Client Connection
var cephConn *rados.Conn
var err error
if d.cluster == "" {
cephConn, err = rados.NewConnWithUser(d.user)
} else {
// FIXME: TODO: can't seem to use a cluster name -- get error -22 from noahdesu/go-ceph/rados:
// panic: Unable to create ceph connection to cluster=ceph with user=admin: rados: ret=-22
cephConn, err = rados.NewConnWithClusterAndUser(d.cluster, d.user)
}
if err != nil {
log.Printf("ERROR: Unable to create ceph connection to cluster=%s with user=%s: %s", d.cluster, d.user, err)
return err
}
// read ceph.conf and setup connection
if d.config == "" {
err = cephConn.ReadDefaultConfigFile()
} else {
err = cephConn.ReadConfigFile(d.config)
}
if err != nil {
log.Printf("ERROR: Unable to read ceph config: %s", err)
return err
}
err = cephConn.Connect()
if err != nil {
log.Printf("ERROR: Unable to connect to Ceph: %s", err)
return err
}
// can now set conn in driver
d.conn = cephConn
// setup the requested pool context
ioctx, err := d.goceph_openContext(pool)
if err != nil {
return err
}
d.ioctx = ioctx
return nil
}
// connect builds up the ceph conn and default pool
func (d *cephRBDVolumeDriver) connect() {
log.Println("INFO: connecting to Ceph and default pool context")
d.m.Lock()
defer d.m.Unlock()
// create reusable go-ceph Client Connection
var cephConn *rados.Conn
var err error
if d.cluster == "" {
cephConn, err = rados.NewConnWithUser(d.user)
} else {
// FIXME: TODO: can't seem to use a cluster name -- get error -22 from go-ceph/rados:
// panic: Unable to create ceph connection to cluster=ceph with user=admin: rados: ret=-22
cephConn, err = rados.NewConnWithClusterAndUser(d.cluster, d.user)
}
if err != nil {
log.Panicf("ERROR: Unable to create ceph connection to cluster=%s with user=%s: %s", d.cluster, d.user, err)
}
// read ceph.conf and setup connection
if d.config == "" {
err = cephConn.ReadDefaultConfigFile()
} else {
err = cephConn.ReadConfigFile(d.config)
}
if err != nil {
log.Panicf("ERROR: Unable to read ceph config: %s", err)
}
err = cephConn.Connect()
if err != nil {
log.Panicf("ERROR: Unable to connect to Ceph: %s", err)
}
// can now set conn in driver
d.conn = cephConn
// setup the default context (pool most likely to be used)
defaultContext, err := d.openContext(d.defaultPool)
if err != nil {
log.Panicf("ERROR: Unable to connect to default Ceph Pool: %s", err)
}
d.defaultIoctx = defaultContext
}
func (d *radosdesc) New() (factory.DrvInterface, error) {
chunksize := uint64(defaultChunkSize)
if setting.Chunksize != "" {
if tmp, err := strconv.Atoi(setting.Chunksize); err != nil {
return nil, fmt.Errorf("The chunksize parameter should be a number")
} else {
chunksize = uint64(tmp)
}
}
var err error
var conn *rados.Conn
if setting.Username != "" {
conn, err = rados.NewConnWithUser(setting.Username)
} else {
conn, err = rados.NewConn()
}
if err != nil {
return nil, err
}
if err := conn.ReadDefaultConfigFile(); err != nil {
return nil, err
}
if err := conn.Connect(); err != nil {
return nil, err
}
ioctx, err := conn.OpenIOContext(setting.Poolname)
if err != nil {
return nil, err
}
return &radosdesc{
Ioctx: ioctx,
Conn: conn,
Chunksize: chunksize,
}, nil
}
