1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
package driver
import (
"fmt"
"os"
"os/signal"
"syscall"
"github.com/container-storage-interface/spec/lib/go/csi"
"github.com/seaweedfs/seaweedfs-csi-driver/pkg/datalocality"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/seaweedfs/weed/security"
"github.com/seaweedfs/seaweedfs/weed/util"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"k8s.io/client-go/rest"
"k8s.io/klog"
)
const (
driverName = "seaweedfs-csi-driver"
)
var (
version = "1.0.0"
)
type SeaweedFsDriver struct {
name string
nodeID string
version string
endpoint string
vcap []*csi.VolumeCapability_AccessMode
cscap []*csi.ControllerServiceCapability
filers []pb.ServerAddress
filerIndex int
grpcDialOption grpc.DialOption
ConcurrentWriters int
CacheCapacityMB int
CacheDir string
UidMap string
GidMap string
signature int32
DataCenter string
DataLocality datalocality.DataLocality
RunNode bool
RunController bool
}
func NewSeaweedFsDriver(filer, nodeID, endpoint string, enableAttacher bool) *SeaweedFsDriver {
glog.Infof("Driver: %v version: %v", driverName, version)
util.LoadConfiguration("security", false)
n := &SeaweedFsDriver{
endpoint: endpoint,
nodeID: nodeID,
name: driverName,
version: version,
filers: pb.ServerAddresses(filer).ToAddresses(),
grpcDialOption: security.LoadClientTLS(util.GetViper(), "grpc.client"),
signature: util.RandomInt32(),
}
n.AddVolumeCapabilityAccessModes([]csi.VolumeCapability_AccessMode_Mode{
csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
csi.VolumeCapability_AccessMode_SINGLE_NODE_MULTI_WRITER,
csi.VolumeCapability_AccessMode_SINGLE_NODE_SINGLE_WRITER,
})
n.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{
csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
csi.ControllerServiceCapability_RPC_SINGLE_NODE_MULTI_WRITER,
csi.ControllerServiceCapability_RPC_EXPAND_VOLUME,
})
// we need this just only for csi-attach, but we do nothing for attach/detach
if enableAttacher {
n.AddControllerServiceCapabilities([]csi.ControllerServiceCapability_RPC_Type{
csi.ControllerServiceCapability_RPC_PUBLISH_UNPUBLISH_VOLUME,
})
}
return n
}
func (n *SeaweedFsDriver) initClient() error {
_, err := rest.InClusterConfig()
if err != nil {
klog.Errorf("Failed to get cluster config with error: %v\n", err)
os.Exit(1)
}
return nil
}
func (n *SeaweedFsDriver) Run() {
glog.Info("starting")
var controller *ControllerServer
if n.RunController {
controller = NewControllerServer(n)
}
var node *NodeServer
if n.RunNode {
node = NewNodeServer(n)
}
s := NewNonBlockingGRPCServer()
s.Start(n.endpoint,
NewIdentityServer(n),
controller,
node)
stopChan := make(chan os.Signal)
signal.Notify(stopChan, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP)
<-stopChan
glog.Infof("stopping")
s.Stop()
s.Wait()
if node != nil {
glog.Infof("node cleanup")
node.NodeCleanup()
}
glog.Infof("stopped")
}
func (n *SeaweedFsDriver) AddVolumeCapabilityAccessModes(vc []csi.VolumeCapability_AccessMode_Mode) {
for _, c := range vc {
glog.Infof("Enabling volume access mode: %v", c.String())
n.vcap = append(n.vcap, &csi.VolumeCapability_AccessMode{Mode: c})
}
}
func (n *SeaweedFsDriver) AddControllerServiceCapabilities(cl []csi.ControllerServiceCapability_RPC_Type) {
for _, c := range cl {
glog.Infof("Enabling controller service capability: %v", c.String())
n.cscap = append(n.cscap, NewControllerServiceCapability(c))
}
}
func (d *SeaweedFsDriver) ValidateControllerServiceRequest(c csi.ControllerServiceCapability_RPC_Type) error {
if c == csi.ControllerServiceCapability_RPC_UNKNOWN {
return nil
}
for _, cap := range d.cscap {
if c == cap.GetRpc().GetType() {
return nil
}
}
return status.Error(codes.InvalidArgument, fmt.Sprintf("%s", c))
}
var _ = filer_pb.FilerClient(&SeaweedFsDriver{})
func (d *SeaweedFsDriver) WithFilerClient(streamingMode bool, fn func(filer_pb.SeaweedFilerClient) error) error {
return util.Retry("filer grpc", func() error {
i := d.filerIndex
n := len(d.filers)
var err error
for x := 0; x < n; x++ {
err = pb.WithGrpcClient(streamingMode, d.signature, func(grpcConnection *grpc.ClientConn) error {
client := filer_pb.NewSeaweedFilerClient(grpcConnection)
return fn(client)
}, d.filers[i].ToGrpcAddress(), false, d.grpcDialOption)
if err != nil {
glog.V(0).Infof("WithFilerClient %d %v: %v", x, d.filers[i], err)
} else {
d.filerIndex = i
return nil
}
i++
if i >= n {
i = 0
}
}
return err
})
}
func (d *SeaweedFsDriver) AdjustedUrl(location *filer_pb.Location) string {
return location.Url
}
func (d *SeaweedFsDriver) GetDataCenter() string {
return d.DataCenter
}
|
