forked from kubermatic/kubeone
/
preflight_checks_test.go
319 lines (300 loc) · 9.18 KB
/
preflight_checks_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
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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
/*
Copyright 2019 The KubeOne 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 tasks
import (
"fmt"
"testing"
"github.com/Masterminds/semver/v3"
corev1 "k8s.io/api/core/v1"
)
func TestParseContainerImageVersionValid(t *testing.T) {
t.Parallel()
testcases := []struct {
name string
image string
expectedVersion *semver.Version
}{
{
name: "docker image",
image: "test/test-image:v1.13.3",
expectedVersion: semver.MustParse("v1.13.3"),
},
{
name: "docker.io image",
image: "docker.io/test/test-image:v1.13.2",
expectedVersion: semver.MustParse("v1.13.2"),
},
{
name: "gcr.io image",
image: "gcr.io/kubernetes/kubernetes:v1.14.0",
expectedVersion: semver.MustParse("v1.14.0"),
},
{
name: "gcr.io image without v prefix",
image: "gcr.io/kubernetes:1.14.0",
expectedVersion: semver.MustParse("1.14.0"),
},
{
name: "gcr.io image without v prefix and patch version",
image: "gcr.io/kubernetes:1.14",
expectedVersion: semver.MustParse("v1.14.0"),
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
ver, err := parseContainerImageVersion(corev1.Container{Image: tc.image})
if err != nil {
t.Fatal(err)
}
if !ver.Equal(tc.expectedVersion) {
t.Fatalf("expected version %s, but got version %s", tc.expectedVersion.String(), ver.String())
}
})
}
}
func TestParseContainerImageVersionInvalid(t *testing.T) {
t.Parallel()
testcases := []struct {
name string
image string
expectedError error
}{
{
name: "docker image without version",
image: "test/test-image",
expectedError: fmt.Errorf("invalid container image format: test/test-image"),
},
{
name: "docker image with the latest tag",
image: "test/test-image:latest",
expectedError: fmt.Errorf("Invalid Semantic Version"),
},
{
name: "gcr.io image without version",
image: "gcr.io/kubernetes/kube-apiserver",
expectedError: fmt.Errorf("invalid container image format: gcr.io/kubernetes/kube-apiserver"),
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
_, err := parseContainerImageVersion(corev1.Container{Image: tc.image})
if err.Error() != tc.expectedError.Error() {
t.Fatal(err)
}
})
}
}
func TestCheckVersionSkewValid(t *testing.T) {
t.Parallel()
testcases := []struct {
name string
currentVersion *semver.Version
desiredVersion *semver.Version
diff uint64
}{
{
name: "upgrade 1.13.3 to 1.14.0 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.14.0"),
diff: 1,
},
{
name: "upgrade 1.13.3 to 1.14.1 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.14.1"),
diff: 1,
},
{
name: "upgrade 1.13.3 to 1.14.3 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.14.3"),
diff: 1,
},
{
name: "upgrade 1.13.3 to 1.14.5 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.14.5"),
diff: 1,
},
{
name: "upgrade 1.13.0 to 1.14.0 with diff of 1",
currentVersion: semver.MustParse("1.13.0"),
desiredVersion: semver.MustParse("1.14.0"),
diff: 1,
},
{
name: "upgrade 1.13.0 to 1.14.1 with diff of 1",
currentVersion: semver.MustParse("1.13.0"),
desiredVersion: semver.MustParse("1.14.1"),
diff: 1,
},
{
name: "upgrade 1.13.0 to 1.15.1 with diff of 2",
currentVersion: semver.MustParse("1.13.0"),
desiredVersion: semver.MustParse("1.15.1"),
diff: 2,
},
{
name: "upgrade 1.13.0 to 1.13.3 with diff of 1",
currentVersion: semver.MustParse("1.13.0"),
desiredVersion: semver.MustParse("1.13.3"),
diff: 1,
},
{
name: "upgrade 1.13.3 to 1.13.4 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.13.4"),
diff: 1,
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
err := checkVersionSkew(tc.desiredVersion, tc.currentVersion, tc.diff)
if err != nil {
t.Fatal(err)
}
})
}
}
func TestCheckVersionSkewInvalid(t *testing.T) {
t.Parallel()
testcases := []struct {
name string
currentVersion *semver.Version
desiredVersion *semver.Version
diff uint64
}{
{
name: "upgrade 1.13.3 to 1.15.0 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.15.0"),
diff: 1,
},
{
name: "upgrade 1.13.3 to 1.15.3 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.15.3"),
diff: 1,
},
{
name: "upgrade 1.13.3 to 1.15.5 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.15.5"),
diff: 1,
},
{
name: "upgrade 1.13.3 to 1.16.2 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.16.2"),
diff: 1,
},
{
name: "upgrade 1.13.3 to 1.16.2 with diff of 2",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.16.2"),
diff: 2,
},
{
name: "downgrade 1.13.0 to 1.12.1 with diff of 1",
currentVersion: semver.MustParse("1.13.0"),
desiredVersion: semver.MustParse("1.12.1"),
diff: 1,
},
{
name: "downgrade 1.13.3 to 1.12.1 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.12.1"),
diff: 1,
},
{
name: "downgrade 1.13.3 to 1.12.3 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.12.3"),
diff: 1,
},
{
name: "downgrade 1.13.3 to 1.12.4 with diff of 1",
currentVersion: semver.MustParse("1.13.3"),
desiredVersion: semver.MustParse("1.12.4"),
diff: 1,
},
{
name: "downgrade 1.13.3 to 1.13.2 with diff of 1",
currentVersion: semver.MustParse("v1.13.3"),
desiredVersion: semver.MustParse("v1.13.2"),
diff: 1,
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
err := checkVersionSkew(tc.desiredVersion, tc.currentVersion, tc.diff)
if err == nil {
t.Fatalf("expected error but test succeed instead")
}
})
}
}
func TestCheckHostname(t *testing.T) {
t.Parallel()
testcases := []struct {
name string
hostnames []string
expError error
}{
{
name: "valid hostname",
hostnames: []string{"valid-hostname"},
expError: nil,
},
{
name: "invalid hostname",
hostnames: []string{"ALL-CAPS"},
expError: fmt.Errorf(`runtime: validating node hostnames
- hostname "ALL-CAPS" cannot be used as Kubernetes node: [a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')]
Please rename host(s)`),
},
{
name: "multiple errors",
hostnames: []string{"ALL-CAPS", "inv@lid-symbol"},
expError: fmt.Errorf(`runtime: validating node hostnames
- hostname "ALL-CAPS" cannot be used as Kubernetes node: [a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')]
- hostname "inv@lid-symbol" cannot be used as Kubernetes node: [a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')]
Please rename host(s)`),
},
}
for _, tc := range testcases {
tc := tc
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
err := checkHostnames(tc.hostnames)
exp, act := "", ""
if tc.expError != nil {
exp = tc.expError.Error()
}
if err != nil {
act = err.Error()
}
if exp != act {
t.Fatalf("want error\n%q\ngot\n%q\n", tc.expError, err)
}
})
}
}