+54
-5
lines changedFilter options
+54
-5
lines changed Original file line number Diff line number Diff line change
@@ -16,8 +16,10 @@ services:
16 16
image: prom/prometheus
17 17
ports:
18 18
- "9090:9090"
19 -
command:
20 -
- --config.file=/etc/prometheus/prometheus.yml
19 +
entrypoint: /etc/prometheus/entrypoint.sh
20 +
volumes:
21 +
- ./testdata/prometheus-seed.yml:/etc/prometheus/prometheus-seed.yml
22 +
- ./testdata/prometheus-entrypoint.sh:/etc/prometheus/entrypoint.sh
21 23 22 24
loki:
23 25
image: grafana/loki:2.6.0
@@ -0,0 +1,43 @@
1 +
#!/bin/sh
2 +
# Prometheus entrypoint script to backfill recording rules and start Prometheus
3 + 4 +
set -e
5 + 6 +
echo "Starting Prometheus entrypoint script..."
7 + 8 + 9 +
backfill() {
10 +
# Calculate time range for backfilling (5 hours ago from now)
11 +
# Get current time in seconds since epoch
12 +
CURRENT_TIME=$(date -u +%s)
13 +
# Subtract 5 hours (5 * 60 * 60 = 18000 seconds)
14 +
START_TIME=$((CURRENT_TIME - 18000))
15 + 16 +
# wait until Prometheus is up and running
17 +
until wget http://localhost:9090/-/healthy -q -O /dev/null; do
18 +
sleep 1
19 +
done
20 + 21 +
promtool tsdb create-blocks-from \
22 +
rules \
23 +
--url=http://localhost:9090 \
24 +
--start="${START_TIME}" \
25 +
--end="${CURRENT_TIME}" \
26 +
--eval-interval=30s \
27 +
/etc/prometheus/prometheus-seed.yml
28 +
}
29 + 30 +
# Start Prometheus with the regular configuration, this is needed for backfilling
31 +
/bin/prometheus \
32 +
--config.file=/etc/prometheus/prometheus.yml &
33 + 34 +
backfill
35 + 36 +
# Restarting Prometheus after backfilling will allow to load the new blocks directly
37 +
# without having to wait for the next compaction cycle
38 +
kill %1
39 +
echo "Starting Prometheus server..."
40 +
# Start Prometheus with the regular configuration
41 +
/bin/prometheus \
42 +
--config.file=/etc/prometheus/prometheus.yml
43 + Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
1 +
groups:
2 +
- name: seed
3 +
rules:
4 +
- record: test
5 +
expr: vector(1)
Original file line number Diff line number Diff line change
@@ -233,15 +233,14 @@ func TestSelectorMatches(t *testing.T) {
233 233 234 234
func TestPrometheusQueries(t *testing.T) {
235 235
t.Run("query prometheus range", func(t *testing.T) {
236 -
t.Skip("Skipping because we don't have a Prometheus instance with enough data")
237 236
end := time.Now()
238 237
start := end.Add(-10 * time.Minute)
239 238
for _, step := range []int{15, 60, 300} {
240 239
t.Run(fmt.Sprintf("step=%d", step), func(t *testing.T) {
241 240
ctx := newTestContext()
242 241
result, err := queryPrometheus(ctx, QueryPrometheusParams{
243 242
DatasourceUID: "prometheus",
244 -
Expr: "up",
243 +
Expr: "test",
245 244
StartRFC3339: start.Format(time.RFC3339),
246 245
EndRFC3339: end.Format(time.RFC3339),
247 246
StepSeconds: step,
@@ -253,7 +252,7 @@ func TestPrometheusQueries(t *testing.T) {
253 252
expectedLen := int(end.Sub(start).Seconds()/float64(step)) + 1
254 253
assert.Len(t, matrix[0].Values, expectedLen)
255 254
assert.Less(t, matrix[0].Values[0].Timestamp.Sub(model.TimeFromUnix(start.Unix())), time.Duration(step)*time.Second)
256 -
assert.Equal(t, matrix[0].Metric["__name__"], model.LabelValue("up"))
255 +
assert.Equal(t, matrix[0].Metric["__name__"], model.LabelValue("test"))
257 256
})
258 257
}
259 258
})
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