File: backrest_last_backup_metrics_test.go

package info (click to toggle)
prometheus-pgbackrest-exporter 0.19.0%2Bds1-2
  • links: PTS, VCS
  • area: main
  • in suites: sid, trixie
  • size: 480 kB
  • sloc: sh: 141; makefile: 136
file content (309 lines) | stat: -rw-r--r-- 13,836 bytes parent folder | download
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
package backrest

import (
	"bytes"
	"fmt"
	"os/exec"
	"testing"

	"github.com/go-kit/log"
	"github.com/prometheus/client_golang/prometheus"
	"github.com/prometheus/common/expfmt"
)

type mockBackupLastStruct struct {
	mockFull mockStruct
	mockDiff mockStruct
	mockIncr mockStruct
}

var (
	currentUnixTimeForTests = parseDate("2021-07-22 21:00:00").UnixNano()
	mockDataBackupLast      = mockBackupLastStruct{}
)

// All metrics exist and all labels are corrected.
// pgBackrest version = latest.
func TestGetBackupLastMetrics(t *testing.T) {
	type args struct {
		stanzaName          string
		lastBackups         lastBackupsStruct
		currentUnixTime     int64
		setUpMetricValueFun setUpMetricValueFunType
		testText            string
	}
	templateMetrics := `# HELP pgbackrest_backup_last_annotations Number of annotations in the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_annotations gauge
pgbackrest_backup_last_annotations{backup_type="diff",block_incr="y",stanza="demo"} 0
pgbackrest_backup_last_annotations{backup_type="full",block_incr="y",stanza="demo"} 1
pgbackrest_backup_last_annotations{backup_type="incr",block_incr="y",stanza="demo"} 0
# HELP pgbackrest_backup_last_delta_bytes Amount of data in the database to actually backup in the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_delta_bytes gauge
pgbackrest_backup_last_delta_bytes{backup_type="diff",block_incr="y",stanza="demo"} 3.223033e+07
pgbackrest_backup_last_delta_bytes{backup_type="full",block_incr="y",stanza="demo"} 2.4316343e+07
pgbackrest_backup_last_delta_bytes{backup_type="incr",block_incr="y",stanza="demo"} 3.223033e+07
# HELP pgbackrest_backup_last_duration_seconds Backup duration for the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_duration_seconds gauge
pgbackrest_backup_last_duration_seconds{backup_type="diff",block_incr="y",stanza="demo"} 3
pgbackrest_backup_last_duration_seconds{backup_type="full",block_incr="y",stanza="demo"} 3
pgbackrest_backup_last_duration_seconds{backup_type="incr",block_incr="y",stanza="demo"} 3
# HELP pgbackrest_backup_last_error_status Error status in the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_error_status gauge
pgbackrest_backup_last_error_status{backup_type="diff",block_incr="y",stanza="demo"} 0
pgbackrest_backup_last_error_status{backup_type="full",block_incr="y",stanza="demo"} 0
pgbackrest_backup_last_error_status{backup_type="incr",block_incr="y",stanza="demo"} 0
# HELP pgbackrest_backup_last_repo_delta_bytes Compressed files size in the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_repo_delta_bytes gauge
pgbackrest_backup_last_repo_delta_bytes{backup_type="diff",block_incr="y",stanza="demo"} 2.969514e+06
pgbackrest_backup_last_repo_delta_bytes{backup_type="full",block_incr="y",stanza="demo"} 2.969514e+06
pgbackrest_backup_last_repo_delta_bytes{backup_type="incr",block_incr="y",stanza="demo"} 2.969514e+06
# HELP pgbackrest_backup_last_repo_delta_map_bytes Size of block incremental delta map in the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_repo_delta_map_bytes gauge
pgbackrest_backup_last_repo_delta_map_bytes{backup_type="diff",block_incr="y",stanza="demo"} 12
pgbackrest_backup_last_repo_delta_map_bytes{backup_type="full",block_incr="y",stanza="demo"} 12
pgbackrest_backup_last_repo_delta_map_bytes{backup_type="incr",block_incr="y",stanza="demo"} 12
# HELP pgbackrest_backup_last_repo_size_bytes Full compressed files size to restore the database from the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_repo_size_bytes gauge
pgbackrest_backup_last_repo_size_bytes{backup_type="diff",block_incr="y",stanza="demo"} 0
pgbackrest_backup_last_repo_size_bytes{backup_type="full",block_incr="y",stanza="demo"} 0
pgbackrest_backup_last_repo_size_bytes{backup_type="incr",block_incr="y",stanza="demo"} 0
# HELP pgbackrest_backup_last_repo_size_map_bytes Size of block incremental map in the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_repo_size_map_bytes gauge
pgbackrest_backup_last_repo_size_map_bytes{backup_type="diff",block_incr="y",stanza="demo"} 100
pgbackrest_backup_last_repo_size_map_bytes{backup_type="full",block_incr="y",stanza="demo"} 100
pgbackrest_backup_last_repo_size_map_bytes{backup_type="incr",block_incr="y",stanza="demo"} 100
# HELP pgbackrest_backup_last_size_bytes Full uncompressed size of the database in the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_size_bytes gauge
pgbackrest_backup_last_size_bytes{backup_type="diff",block_incr="y",stanza="demo"} 3.223033e+07
pgbackrest_backup_last_size_bytes{backup_type="full",block_incr="y",stanza="demo"} 2.4316343e+07
pgbackrest_backup_last_size_bytes{backup_type="incr",block_incr="y",stanza="demo"} 3.223033e+07
# HELP pgbackrest_backup_since_last_completion_seconds Seconds since the last completed full, differential or incremental backup.
# TYPE pgbackrest_backup_since_last_completion_seconds gauge
pgbackrest_backup_since_last_completion_seconds{backup_type="diff",block_incr="y",stanza="demo"} 9.223372036854776e+09
pgbackrest_backup_since_last_completion_seconds{backup_type="full",block_incr="y",stanza="demo"} 9.223372036854776e+09
pgbackrest_backup_since_last_completion_seconds{backup_type="incr",block_incr="y",stanza="demo"} 9.223372036854776e+09
`
	tests := []struct {
		name string
		args args
	}{
		{
			"getBackupLastMetrics",
			args{
				templateStanza(
					"000000010000000000000004",
					"000000010000000000000001",
					[]databaseRef{{"postgres", 13425}},
					true,
					false,
					12,
					100,
					0,
					0,
					annotation{"testkey": "testvalue"}).Name,
				templateLastBackupDifferent(),
				currentUnixTimeForTests,
				setUpMetricValue,
				templateMetrics,
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			resetLastBackupMetrics()
			getBackupLastMetrics(tt.args.stanzaName, tt.args.lastBackups, tt.args.currentUnixTime, tt.args.setUpMetricValueFun, logger)
			reg := prometheus.NewRegistry()
			reg.MustRegister(
				pgbrStanzaBackupSinceLastCompletionSecondsMetric,
				pgbrStanzaBackupLastDurationMetric,
				pgbrStanzaBackupLastDatabaseSizeMetric,
				pgbrStanzaBackupLastDatabaseBackupSizeMetric,
				pgbrStanzaBackupLastRepoBackupSetSizeMetric,
				pgbrStanzaBackupLastRepoBackupSetSizeMapMetric,
				pgbrStanzaBackupLastRepoBackupSizeMetric,
				pgbrStanzaBackupLastRepoBackupSizeMapMetric,
				pgbrStanzaBackupLastErrorMetric,
				pgbrStanzaBackupLastAnnotationsMetric,
			)
			metricFamily, err := reg.Gather()
			if err != nil {
				fmt.Println(err)
			}
			out := &bytes.Buffer{}
			for _, mf := range metricFamily {
				if _, err := expfmt.MetricFamilyToText(out, mf); err != nil {
					panic(err)
				}
			}
			if tt.args.testText != out.String() {
				t.Errorf(
					"\nVariables do not match, metrics:\n%s\nwant:\n%s", tt.args.testText, out.String())
			}
		})
	}
}

func TestGetBackupLastDBCountMetrics(t *testing.T) {
	type args struct {
		config              string
		configIncludePath   string
		stanzaName          string
		lastBackups         lastBackupsStruct
		currentUnixTime     int64
		setUpMetricValueFun setUpMetricValueFunType
		testText            string
	}
	tests := []struct {
		name                   string
		args                   args
		mockTestDataBackupLast mockBackupLastStruct
	}{
		// All metrics exist and all labels are corrected.
		// pgBackrest version = latest.
		{
			"getBackupLastMetricsDatabases",
			args{
				"",
				"",
				templateStanza(
					"000000010000000000000004",
					"000000010000000000000001",
					[]databaseRef{{"postgres", 13425}},
					true,
					false,
					12,
					100,
					0,
					0,
					annotation{"testkey": "testvalue"}).Name,
				templateLastBackup(),
				currentUnixTimeForTests,
				setUpMetricValue,
				`# HELP pgbackrest_backup_last_databases Number of databases in the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_databases gauge
pgbackrest_backup_last_databases{backup_type="diff",block_incr="y",stanza="demo"} 1
pgbackrest_backup_last_databases{backup_type="full",block_incr="y",stanza="demo"} 1
pgbackrest_backup_last_databases{backup_type="incr",block_incr="y",stanza="demo"} 1
`,
			},
			mockBackupLastStruct{
				mockStruct{
					`[{"archive":[{"database":{"id":1,"repo-key":1},"id":"13-1",` +
						`"max":"000000010000000000000010","min":"000000010000000000000001"}],` +
						`"backup":[{"annotation":{"testkey":"testvalue"},"archive":{"start":"000000010000000000000003","stop":"000000010000000000000004"},` +
						`"backrest":{"format":5,"version":"2.48"},"database":{"id":1,"repo-key":1},` +
						`"database-ref":[{"name":"postgres","oid":13412}],"error":true,` +
						`"info":{"delta":32230330,"repository":{"delta":3970793,"size":3970793},"size":32230330},` +
						`"label":"20220926-201857F","link":null,"lsn":{"start":"0/3000028","stop":"0/4000050"},"prior":null,` +
						`"reference":null,"tablespace":null,"timestamp":{"start":1664223537,"stop":1664223540},"type":"full"}],` +
						`"cipher":"none","db":[{"id":1,"repo-key":1,"system-id":7147741414128675215,"version":"13"}],` +
						`"name":"demo","repo":[{"cipher":"none","key":1,"status":{"code":0,"message":"ok"}}],` +
						`"status":{"code":0,"lock":{"backup":{"held":false}},"message":"ok"}}]`,
					"",
					0,
				},
				mockStruct{
					`[{"archive":[{"database":{"id":1,"repo-key":1},"id":"13-1",` +
						`"max":"000000010000000000000010","min":"000000010000000000000001"}],` +
						`"backup":[{"annotation":{"testkey":"testvalue"},"archive":{"start":"000000010000000000000003","stop":"000000010000000000000004"},` +
						`"backrest":{"format":5,"version":"2.48"},"database":{"id":1,"repo-key":1},` +
						`"database-ref":[{"name":"postgres","oid":13412}],"error":true,` +
						`"info":{"delta":32230330,"repository":{"delta":3970793,"size":3970793},"size":32230330},` +
						`"label":"20220926-201857F","link":null,"lsn":{"start":"0/3000028","stop":"0/4000050"},"prior":null,` +
						`"reference":null,"tablespace":null,"timestamp":{"start":1664223537,"stop":1664223540},"type":"full"}],` +
						`"cipher":"none","db":[{"id":1,"repo-key":1,"system-id":7147741414128675215,"version":"13"}],` +
						`"name":"demo","repo":[{"cipher":"none","key":1,"status":{"code":0,"message":"ok"}}],` +
						`"status":{"code":0,"lock":{"backup":{"held":false}},"message":"ok"}}]`,
					"",
					0,
				},
				mockStruct{
					`[{"archive":[{"database":{"id":1,"repo-key":1},"id":"13-1",` +
						`"max":"000000010000000000000010","min":"000000010000000000000001"}],` +
						`"backup":["annotation":{"testkey":"testvalue"},"archive":{"start":"000000010000000000000003","stop":"000000010000000000000004"},` +
						`"backrest":{"format":5,"version":"2.48"},"database":{"id":1,"repo-key":1},` +
						`"database-ref":[{"name":"postgres","oid":13412}],"error":true,` +
						`"info":{"delta":32230330,"repository":{"delta":3970793,"size":3970793},"size":32230330},` +
						`"label":"20220926-201857F","link":null,"lsn":{"start":"0/3000028","stop":"0/4000050"},"prior":null,` +
						`"reference":null,"tablespace":null,"timestamp":{"start":1664223537,"stop":1664223540},"type":"full"}],` +
						`"cipher":"none","db":[{"id":1,"repo-key":1,"system-id":7147741414128675215,"version":"13"}],` +
						`"name":"demo","repo":[{"cipher":"none","key":1,"status":{"code":0,"message":"ok"}}],` +
						`"status":{"code":0,"lock":{"backup":{"held":false}},"message":"ok"}}]`,
					"",
					0,
				},
			},
		},
		// Absent metrics:
		//   - pgbackrest_backup_last_databases.
		//
		// pgBackrest version < v2.41.
		{
			"getBackupLastMetricsDatabasesAbsent",
			args{
				"",
				"",
				templateStanzaDBsAbsent(
					"000000010000000000000004",
					"000000010000000000000001",
					[]databaseRef{{"postgres", 13425}},
					true,
					2969514).Name,
				templateLastBackupDBsAbsent(),
				currentUnixTimeForTests,
				setUpMetricValue,
				`# HELP pgbackrest_backup_last_databases Number of databases in the last full, differential or incremental backup.
# TYPE pgbackrest_backup_last_databases gauge
pgbackrest_backup_last_databases{backup_type="diff",block_incr="n",stanza="demo"} 0
pgbackrest_backup_last_databases{backup_type="full",block_incr="n",stanza="demo"} 0
pgbackrest_backup_last_databases{backup_type="incr",block_incr="n",stanza="demo"} 0
`,
			},
			mockBackupLastStruct{
				mockStruct{
					"",
					"ERROR: [027]: option 'set' is currently only valid for text output",
					27,
				},
				mockStruct{
					"",
					"ERROR: [027]: option 'set' is currently only valid for text output",
					27,
				},
				mockStruct{
					"",
					"ERROR: [027]: option 'set' is currently only valid for text output",
					27,
				},
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			resetLastBackupMetrics()
			mockDataBackupLast = tt.mockTestDataBackupLast
			execCommand = fakeExecCommandSpecificDatabase
			defer func() { execCommand = exec.Command }()
			lc := log.NewNopLogger()
			getBackupLastDBCountMetrics(tt.args.config, tt.args.configIncludePath, tt.args.stanzaName, tt.args.lastBackups, tt.args.setUpMetricValueFun, lc)
			reg := prometheus.NewRegistry()
			reg.MustRegister(
				pgbrStanzaBackupLastDatabasesMetric,
			)
			metricFamily, err := reg.Gather()
			if err != nil {
				fmt.Println(err)
			}
			out := &bytes.Buffer{}
			for _, mf := range metricFamily {
				if _, err := expfmt.MetricFamilyToText(out, mf); err != nil {
					panic(err)
				}
			}
			if tt.args.testText != out.String() {
				t.Errorf(
					"\nVariables do not match, metrics:\n%s\nwant:\n%s", tt.args.testText, out.String())
			}
		})
	}
}