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
|
package driver
import (
"fmt"
"os"
"path/filepath"
"strconv"
"strings"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/util"
)
// Implements Mounter
type seaweedFsMounter struct {
volumeID string
path string
collection string
readOnly bool
driver *SeaweedFsDriver
volContext map[string]string
}
type seaweedFsUnmounter struct {
unmounter Unmounter
cacheDir string
}
const (
seaweedFsCmd = "weed"
)
func newSeaweedFsMounter(volumeID string, path string, collection string, readOnly bool, driver *SeaweedFsDriver, volContext map[string]string) (Mounter, error) {
return &seaweedFsMounter{
volumeID: volumeID,
path: path,
collection: collection,
readOnly: readOnly,
driver: driver,
volContext: volContext,
}, nil
}
func (seaweedFs *seaweedFsMounter) getOrDefaultContext(key string, defaultValue string) string {
v, ok := seaweedFs.volContext[key]
if ok {
return v
}
return defaultValue
}
func (seaweedFs *seaweedFsMounter) getOrDefaultContextInt(key string, defaultValue int) int {
v := seaweedFs.getOrDefaultContext(key, "")
if v != "" {
iv, err := strconv.Atoi(v)
if err == nil {
return iv
}
}
return defaultValue
}
func (seaweedFs *seaweedFsMounter) Mount(target string) (Unmounter, error) {
glog.V(0).Infof("mounting %v %s to %s", seaweedFs.driver.filers, seaweedFs.path, target)
var filers []string
for _, address := range seaweedFs.driver.filers {
filers = append(filers, string(address))
}
args := []string{
"-logtostderr=true",
"mount",
"-dirAutoCreate=true",
"-umask=000",
fmt.Sprintf("-dir=%s", target),
fmt.Sprintf("-collection=%s", seaweedFs.collection),
fmt.Sprintf("-filer=%s", strings.Join(filers, ",")),
fmt.Sprintf("-filer.path=%s", seaweedFs.path),
fmt.Sprintf("-cacheCapacityMB=%d", seaweedFs.getOrDefaultContextInt("cacheSizeMB", seaweedFs.driver.CacheSizeMB)),
fmt.Sprintf("-localSocket=%s", GetLocalSocket(seaweedFs.volumeID)),
}
// came from https://github.com/seaweedfs/seaweedfs-csi-driver/pull/12
// preferring explicit settings
// keeping this for backward compatibility
for arg, value := range seaweedFs.volContext {
switch arg {
case "map.uid":
args = append(args, fmt.Sprintf("-map.uid=%s", value))
case "map.gid":
args = append(args, fmt.Sprintf("-map.gid=%s", value))
case "replication":
args = append(args, fmt.Sprintf("-replication=%s", value))
case "diskType":
args = append(args, fmt.Sprintf("-disk=%s", value))
case "volumeCapacity":
capacityMB := parseVolumeCapacity(value)
args = append(args, fmt.Sprintf("-collectionQuotaMB=%d", capacityMB))
}
}
if seaweedFs.readOnly {
args = append(args, "-readOnly")
}
// CacheDir should be always defined - we use temp dir in case it is not defined
// we need to use predictable cache path, because we need to clean it up on unstage
cacheDir := filepath.Join(seaweedFs.driver.CacheDir, seaweedFs.volumeID)
args = append(args, fmt.Sprintf("-cacheDir=%s", cacheDir))
if cw := seaweedFs.getOrDefaultContextInt("concurrentWriters", seaweedFs.driver.ConcurrentWriters); cw > 0 {
args = append(args, fmt.Sprintf("-concurrentWriters=%d", cw))
}
if uidMap := seaweedFs.getOrDefaultContext("uidMap", seaweedFs.driver.UidMap); uidMap != "" {
args = append(args, fmt.Sprintf("-map.uid=%s", uidMap))
}
if gidMap := seaweedFs.getOrDefaultContext("gidMap", seaweedFs.driver.GidMap); gidMap != "" {
args = append(args, fmt.Sprintf("-map.gid=%s", gidMap))
}
u, err := fuseMount(target, seaweedFsCmd, args)
if err != nil {
glog.Errorf("mount %v %s to %s: %s", seaweedFs.driver.filers, seaweedFs.path, target, err)
}
return &seaweedFsUnmounter{unmounter: u, cacheDir: cacheDir}, err
}
func (su *seaweedFsUnmounter) Unmount() error {
err := su.unmounter.Unmount()
_ = os.RemoveAll(su.cacheDir)
return err
}
func GetLocalSocket(volumeID string) string {
montDirHash := util.HashToInt32([]byte(volumeID))
if montDirHash < 0 {
montDirHash = -montDirHash
}
socket := fmt.Sprintf("/tmp/seaweedfs-mount-%d.sock", montDirHash)
return socket
}
func parseVolumeCapacity(volumeCapacity string) int64 {
var capacity int64
if vCap, err := strconv.ParseInt(volumeCapacity, 10, 64); err != nil {
glog.Errorf("volumeCapacity %s can not be parsed to Int64, err is: %v", volumeCapacity, err)
} else {
capacity = vCap
}
capacityMB := capacity / 1024 / 1024
return capacityMB
}
|
