-
Notifications
You must be signed in to change notification settings - Fork 3.3k
/
bundle_test.go
166 lines (153 loc) · 3.55 KB
/
bundle_test.go
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
//go:build linux
// +build linux
/*
Copyright The containerd 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 linux
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strconv"
"syscall"
"testing"
"github.com/containerd/containerd/oci"
"github.com/containerd/continuity/testutil"
"github.com/opencontainers/runtime-spec/specs-go"
)
func TestNewBundle(t *testing.T) {
testutil.RequiresRoot(t)
tests := []struct {
userns bool
}{{
userns: false,
}, {
userns: true,
}}
const usernsGID = 4200
for i, tc := range tests {
t.Run(strconv.Itoa(i), func(t *testing.T) {
dir, err := ioutil.TempDir("", "test-new-bundle")
if err != nil {
t.Fatal("failed to create test directory", err)
}
defer os.RemoveAll(dir)
work := filepath.Join(dir, "work")
state := filepath.Join(dir, "state")
id := fmt.Sprintf("new-bundle-%d", i)
spec := oci.Spec{}
if tc.userns {
spec.Linux = &specs.Linux{
GIDMappings: []specs.LinuxIDMapping{{ContainerID: 0, HostID: usernsGID}},
}
}
specBytes, err := json.Marshal(&spec)
if err != nil {
t.Fatal("failed to marshal spec", err)
}
b, err := newBundle(id, work, state, specBytes)
if err != nil {
t.Fatal("newBundle should succeed", err)
}
if b == nil {
t.Fatal("bundle should not be nil")
}
fi, err := os.Stat(b.path)
if err != nil {
t.Error("should be able to stat bundle path", err)
}
if tc.userns {
if fi.Mode() != os.ModeDir|0710 {
t.Error("bundle path should be a directory with perm 0710")
}
} else {
if fi.Mode() != os.ModeDir|0700 {
t.Error("bundle path should be a directory with perm 0700")
}
}
stat, ok := fi.Sys().(*syscall.Stat_t)
if !ok {
t.Fatal("should assert to *syscall.Stat_t")
}
expectedGID := uint32(0)
if tc.userns {
expectedGID = usernsGID
}
if stat.Gid != expectedGID {
t.Error("gid should match", expectedGID, stat.Gid)
}
})
}
}
func TestRemappedGID(t *testing.T) {
tests := []struct {
spec oci.Spec
gid uint32
}{{
// empty spec
spec: oci.Spec{},
gid: 0,
}, {
// empty Linux section
spec: oci.Spec{
Linux: &specs.Linux{},
},
gid: 0,
}, {
// empty ID mappings
spec: oci.Spec{
Linux: &specs.Linux{
GIDMappings: make([]specs.LinuxIDMapping, 0),
},
},
gid: 0,
}, {
// valid ID mapping
spec: oci.Spec{
Linux: &specs.Linux{
GIDMappings: []specs.LinuxIDMapping{{
ContainerID: 0,
HostID: 1000,
}},
},
},
gid: 1000,
}, {
// missing ID mapping
spec: oci.Spec{
Linux: &specs.Linux{
GIDMappings: []specs.LinuxIDMapping{{
ContainerID: 100,
HostID: 1000,
}},
},
},
gid: 0,
}}
for i, tc := range tests {
t.Run(strconv.Itoa(i), func(t *testing.T) {
s, err := json.Marshal(tc.spec)
if err != nil {
t.Fatal("failed to marshal spec", err)
}
gid, err := remappedGID(s)
if err != nil {
t.Error("should unmarshal successfully", err)
}
if gid != tc.gid {
t.Error("expected GID to match", tc.gid, gid)
}
})
}
}