mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-11-21 14:44:00 +00:00
68bad22fd2
address https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6706. See https://github.com/VictoriaMetrics/VictoriaMetrics/blob/vmalert-support-vlog-ds/docs/VictoriaLogs/vmalert.md. Related fix https://github.com/VictoriaMetrics/VictoriaMetrics/pull/7254. Note: in this pull request, vmalert doesn't support [backfilling](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/vmalert-support-vlog-ds/docs/VictoriaLogs/vmalert.md#rules-backfilling) for rules with a customized time filter. It might be added in the future, see [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7289) for details. Feature can be tested with image `victoriametrics/vmalert:heads-vmalert-support-vlog-ds-0-g420629c-scratch`. --------- Signed-off-by: hagen1778 <roman@victoriametrics.com> Co-authored-by: hagen1778 <roman@victoriametrics.com>
689 lines
15 KiB
Go
689 lines
15 KiB
Go
package config
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import (
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"net/http"
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"net/http/httptest"
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"net/url"
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"os"
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"strings"
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"testing"
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"time"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/notifier"
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"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/templates"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
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"gopkg.in/yaml.v2"
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)
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func TestMain(m *testing.M) {
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if err := templates.Load([]string{"testdata/templates/*good.tmpl"}, true); err != nil {
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os.Exit(1)
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}
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os.Exit(m.Run())
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}
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func TestParseFromURL(t *testing.T) {
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mux := http.NewServeMux()
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mux.HandleFunc("/bad", func(w http.ResponseWriter, _ *http.Request) {
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w.Write([]byte("foo bar"))
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})
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mux.HandleFunc("/good-alert", func(w http.ResponseWriter, _ *http.Request) {
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w.Write([]byte(`
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groups:
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- name: TestGroup
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rules:
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- alert: Conns
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expr: vm_tcplistener_conns > 0`))
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})
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mux.HandleFunc("/good-rr", func(w http.ResponseWriter, _ *http.Request) {
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w.Write([]byte(`
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groups:
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- name: TestGroup
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rules:
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- record: conns
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expr: max(vm_tcplistener_conns)`))
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})
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mux.HandleFunc("/good-multi-doc", func(w http.ResponseWriter, _ *http.Request) {
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w.Write([]byte(`
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groups:
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- name: foo
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rules:
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- record: conns
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expr: max(vm_tcplistener_conns)
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---
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groups:
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- name: bar
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rules:
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- record: conns
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expr: max(vm_tcplistener_conns)`))
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})
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mux.HandleFunc("/bad-multi-doc", func(w http.ResponseWriter, _ *http.Request) {
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w.Write([]byte(`
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bad_field:
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- name: foo
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rules:
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- record: conns
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expr: max(vm_tcplistener_conns)
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---
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groups:
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- name: bar
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rules:
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- record: conns
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expr: max(vm_tcplistener_conns)`))
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})
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srv := httptest.NewServer(mux)
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defer srv.Close()
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f := func(urls []string, expErr bool) {
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for i, u := range urls {
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urls[i] = srv.URL + u
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}
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_, err := Parse(urls, notifier.ValidateTemplates, true)
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if err != nil && !expErr {
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t.Fatalf("error parsing URLs %s", err)
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}
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if err == nil && expErr {
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t.Fatalf("expecting error parsing URLs but got none")
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}
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}
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f([]string{"/good-alert", "/good-rr", "/good-multi-doc"}, false)
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f([]string{"/bad"}, true)
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f([]string{"/bad-multi-doc"}, true)
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f([]string{"/good-alert", "/bad"}, true)
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}
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func TestParse_Success(t *testing.T) {
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_, err := Parse([]string{"testdata/rules/*good.rules", "testdata/dir/*good.*"}, notifier.ValidateTemplates, true)
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if err != nil {
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t.Fatalf("error parsing files %s", err)
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}
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}
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func TestParse_Failure(t *testing.T) {
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f := func(paths []string, errStrExpected string) {
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t.Helper()
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_, err := Parse(paths, notifier.ValidateTemplates, true)
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if err == nil {
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t.Fatalf("expected to get error")
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}
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if !strings.Contains(err.Error(), errStrExpected) {
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t.Fatalf("expected err to contain %q; got %q instead", errStrExpected, err)
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}
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}
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f([]string{"testdata/rules/rules_interval_bad.rules"}, "eval_offset should be smaller than interval")
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f([]string{"testdata/rules/rules0-bad.rules"}, "unexpected token")
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f([]string{"testdata/dir/rules0-bad.rules"}, "error parsing annotation")
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f([]string{"testdata/dir/rules1-bad.rules"}, "duplicate in file")
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f([]string{"testdata/dir/rules2-bad.rules"}, "function \"unknown\" not defined")
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f([]string{"testdata/dir/rules3-bad.rules"}, "either `record` or `alert` must be set")
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f([]string{"testdata/dir/rules4-bad.rules"}, "either `record` or `alert` must be set")
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f([]string{"testdata/rules/rules1-bad.rules"}, "bad graphite expr")
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f([]string{"testdata/rules/vlog-rules0-bad.rules"}, "bad LogsQL expr")
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f([]string{"testdata/dir/rules6-bad.rules"}, "missing ':' in header")
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f([]string{"testdata/rules/rules-multi-doc-bad.rules"}, "unknown fields")
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f([]string{"testdata/rules/rules-multi-doc-duplicates-bad.rules"}, "duplicate")
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f([]string{"http://unreachable-url"}, "failed to")
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}
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func TestRuleValidate(t *testing.T) {
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if err := (&Rule{}).Validate(); err == nil {
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t.Fatalf("expected empty name error")
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}
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if err := (&Rule{Alert: "alert"}).Validate(); err == nil {
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t.Fatalf("expected empty expr error")
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}
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if err := (&Rule{Alert: "alert", Expr: "test>0"}).Validate(); err != nil {
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t.Fatalf("expected valid rule; got %s", err)
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}
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}
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func TestGroupValidate_Failure(t *testing.T) {
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f := func(group *Group, validateExpressions bool, errStrExpected string) {
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t.Helper()
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err := group.Validate(nil, validateExpressions)
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if err == nil {
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t.Fatalf("expecting non-nil error")
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}
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errStr := err.Error()
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if !strings.Contains(errStr, errStrExpected) {
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t.Fatalf("missing %q in the returned error %q", errStrExpected, errStr)
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}
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}
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f(&Group{}, false, "group name must be set")
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f(&Group{
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Name: "negative interval",
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Interval: promutils.NewDuration(-1),
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}, false, "interval shouldn't be lower than 0")
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f(&Group{
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Name: "wrong eval_offset",
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Interval: promutils.NewDuration(time.Minute),
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EvalOffset: promutils.NewDuration(2 * time.Minute),
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}, false, "eval_offset should be smaller than interval")
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f(&Group{
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Name: "wrong limit",
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Limit: -1,
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}, false, "invalid limit")
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f(&Group{
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Name: "wrong concurrency",
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Concurrency: -1,
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}, false, "invalid concurrency")
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f(&Group{
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Name: "test",
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Rules: []Rule{
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{
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Alert: "alert",
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Expr: "up == 1",
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},
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{
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Alert: "alert",
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Expr: "up == 1",
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},
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},
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}, false, "duplicate")
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f(&Group{
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Name: "test",
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Rules: []Rule{
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{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"summary": "{{ value|query }}",
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}},
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{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"summary": "{{ value|query }}",
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}},
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},
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}, false, "duplicate")
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f(&Group{
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Name: "test",
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Rules: []Rule{
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{Record: "record", Expr: "up == 1", Labels: map[string]string{
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"summary": "{{ value|query }}",
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}},
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{Record: "record", Expr: "up == 1", Labels: map[string]string{
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"summary": "{{ value|query }}",
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}},
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},
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}, false, "duplicate")
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f(&Group{
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Name: "test",
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Rules: []Rule{
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{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"summary": "{{ value|query }}",
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}},
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{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"description": "{{ value|query }}",
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}},
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},
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}, false, "duplicate")
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f(&Group{
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Name: "test",
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Rules: []Rule{
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{Record: "alert", Expr: "up == 1", Labels: map[string]string{
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"summary": "{{ value|query }}",
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}},
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{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"summary": "{{ value|query }}",
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}},
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},
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}, false, "duplicate")
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f(&Group{
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Name: "test graphite with prometheus expr",
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Type: NewGraphiteType(),
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Rules: []Rule{
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{
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Expr: "sum(up == 0 ) by (host)",
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For: promutils.NewDuration(10 * time.Millisecond),
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},
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{
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Expr: "sumSeries(time('foo.bar',10))",
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},
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},
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}, false, "invalid rule")
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f(&Group{
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Name: "test graphite inherit",
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Type: NewGraphiteType(),
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Rules: []Rule{
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{
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Expr: "sumSeries(time('foo.bar',10))",
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For: promutils.NewDuration(10 * time.Millisecond),
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},
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{
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Expr: "sum(up == 0 ) by (host)",
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},
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},
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}, false, "either `record` or `alert` must be set")
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f(&Group{
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Name: "test vlogs with prometheus expr",
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Type: NewVLogsType(),
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Rules: []Rule{
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{
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Expr: "sum(up == 0 ) by (host)",
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For: promutils.NewDuration(10 * time.Millisecond),
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},
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{
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Expr: "sumSeries(time('foo.bar',10))",
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},
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},
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}, false, "invalid rule")
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// validate expressions
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f(&Group{
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Name: "test",
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Rules: []Rule{
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{
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Record: "record",
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Expr: "up | 0",
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},
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},
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}, true, "invalid expression")
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f(&Group{
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Name: "test thanos",
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Type: NewRawType("thanos"),
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Rules: []Rule{
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{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"description": "{{ value|query }}",
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}},
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},
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}, true, "unknown datasource type")
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f(&Group{
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Name: "test graphite",
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Type: NewGraphiteType(),
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Rules: []Rule{
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{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"description": "some-description",
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}},
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},
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}, true, "bad graphite expr")
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f(&Group{
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Name: "test vlogs",
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Type: NewVLogsType(),
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Rules: []Rule{
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{Alert: "alert", Expr: "stats count(*) as requests", Labels: map[string]string{
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"description": "some-description",
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}},
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},
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}, true, "bad LogsQL expr")
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}
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func TestGroupValidate_Success(t *testing.T) {
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f := func(group *Group, validateAnnotations, validateExpressions bool) {
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t.Helper()
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var validateTplFn ValidateTplFn
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if validateAnnotations {
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validateTplFn = notifier.ValidateTemplates
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}
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err := group.Validate(validateTplFn, validateExpressions)
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if err != nil {
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t.Fatalf("unexpected error: %s", err)
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}
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}
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f(&Group{
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Name: "test",
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Rules: []Rule{
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{
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Record: "record",
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Expr: "up | 0",
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},
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},
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}, false, false)
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f(&Group{
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Name: "test",
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Rules: []Rule{
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{
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Alert: "alert",
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Expr: "up == 1",
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Labels: map[string]string{
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"summary": "{{ value|query }}",
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},
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},
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},
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}, false, false)
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// validate annotations
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f(&Group{
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Name: "test",
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Rules: []Rule{
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{
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Alert: "alert",
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Expr: "up == 1",
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Labels: map[string]string{
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"summary": `
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{{ with printf "node_memory_MemTotal{job='node',instance='%s'}" "localhost" | query }}
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{{ . | first | value | humanize1024 }}B
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{{ end }}`,
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},
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},
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},
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}, true, false)
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// validate expressions
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f(&Group{
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Name: "test prometheus",
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Type: NewPrometheusType(),
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Rules: []Rule{
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{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"description": "{{ value|query }}",
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}},
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},
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}, false, true)
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f(&Group{
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Name: "test victorialogs",
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Type: NewVLogsType(),
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Rules: []Rule{
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{Alert: "alert", Expr: " _time: 1m | stats count(*) as requests", Labels: map[string]string{
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"description": "{{ value|query }}",
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}},
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},
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}, false, true)
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}
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func TestHashRule_NotEqual(t *testing.T) {
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f := func(a, b Rule) {
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t.Helper()
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aID, bID := HashRule(a), HashRule(b)
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if aID == bID {
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t.Fatalf("rule hashes mustn't be equal; got %d", aID)
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}
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}
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f(Rule{Alert: "record", Expr: "up == 1"}, Rule{Record: "record", Expr: "up == 1"})
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f(Rule{Record: "record", Expr: "up == 1"}, Rule{Record: "record", Expr: "up == 2"})
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f(Rule{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"foo": "bar",
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"baz": "foo",
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}}, Rule{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"baz": "foo",
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"foo": "baz",
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}})
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f(Rule{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"foo": "bar",
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"baz": "foo",
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}}, Rule{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"baz": "foo",
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}})
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f(Rule{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"foo": "bar",
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"baz": "foo",
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}}, Rule{Alert: "alert", Expr: "up == 1"})
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}
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func TestHashRule_Equal(t *testing.T) {
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f := func(a, b Rule) {
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t.Helper()
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aID, bID := HashRule(a), HashRule(b)
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if aID != bID {
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t.Fatalf("rule hashes must be equal; got %d and %d", aID, bID)
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}
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}
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f(Rule{Record: "record", Expr: "up == 1"}, Rule{Record: "record", Expr: "up == 1"})
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f(Rule{Alert: "alert", Expr: "up == 1"}, Rule{Alert: "alert", Expr: "up == 1"})
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f(Rule{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"foo": "bar",
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"baz": "foo",
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}}, Rule{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"foo": "bar",
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"baz": "foo",
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}})
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f(Rule{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"foo": "bar",
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"baz": "foo",
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}}, Rule{Alert: "alert", Expr: "up == 1", Labels: map[string]string{
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"baz": "foo",
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"foo": "bar",
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}})
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f(Rule{Alert: "record", Expr: "up == 1"}, Rule{Alert: "record", Expr: "up == 1"})
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f(Rule{
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Alert: "alert", Expr: "up == 1", For: promutils.NewDuration(time.Minute), KeepFiringFor: promutils.NewDuration(time.Minute),
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}, Rule{Alert: "alert", Expr: "up == 1"})
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}
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func TestGroupChecksum(t *testing.T) {
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f := func(t *testing.T, data, newData string) {
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t.Helper()
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var g Group
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if err := yaml.Unmarshal([]byte(data), &g); err != nil {
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t.Fatalf("failed to unmarshal: %s", err)
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}
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if g.Checksum == "" {
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t.Fatalf("expected to get non-empty checksum")
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}
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var ng Group
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if err := yaml.Unmarshal([]byte(newData), &ng); err != nil {
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t.Fatalf("failed to unmarshal: %s", err)
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}
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if g.Checksum == ng.Checksum {
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t.Fatalf("expected to get different checksums")
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}
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}
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t.Run("Ok", func(t *testing.T) {
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f(t, `
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name: TestGroup
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rules:
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- alert: ExampleAlertAlwaysFiring
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expr: sum by(job) (up == 1)
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- record: handler:requests:rate5m
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expr: sum(rate(prometheus_http_requests_total[5m])) by (handler)
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`, `
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name: TestGroup
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rules:
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- record: handler:requests:rate5m
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expr: sum(rate(prometheus_http_requests_total[5m])) by (handler)
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- alert: ExampleAlertAlwaysFiring
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|
expr: sum by(job) (up == 1)
|
|
`)
|
|
})
|
|
|
|
t.Run("`for` change", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
rules:
|
|
- alert: ExampleAlertWithFor
|
|
expr: sum by(job) (up == 1)
|
|
for: 5m
|
|
`, `
|
|
name: TestGroup
|
|
rules:
|
|
- alert: ExampleAlertWithFor
|
|
expr: sum by(job) (up == 1)
|
|
`)
|
|
})
|
|
t.Run("`interval` change", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
interval: 2s
|
|
rules:
|
|
- alert: ExampleAlertWithFor
|
|
expr: sum by(job) (up == 1)
|
|
`, `
|
|
name: TestGroup
|
|
interval: 4s
|
|
rules:
|
|
- alert: ExampleAlertWithFor
|
|
expr: sum by(job) (up == 1)
|
|
`)
|
|
})
|
|
t.Run("`concurrency` change", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
concurrency: 2
|
|
rules:
|
|
- alert: ExampleAlertWithFor
|
|
expr: sum by(job) (up == 1)
|
|
`, `
|
|
name: TestGroup
|
|
concurrency: 16
|
|
rules:
|
|
- alert: ExampleAlertWithFor
|
|
expr: sum by(job) (up == 1)
|
|
`)
|
|
})
|
|
|
|
t.Run("`params` change", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
params:
|
|
nocache: ["1"]
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`, `
|
|
name: TestGroup
|
|
params:
|
|
nocache: ["0"]
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`)
|
|
})
|
|
|
|
t.Run("`limit` change", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
limit: 5
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`, `
|
|
name: TestGroup
|
|
limit: 10
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`)
|
|
})
|
|
|
|
t.Run("`headers` change", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
headers:
|
|
- "TenantID: foo"
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`, `
|
|
name: TestGroup
|
|
headers:
|
|
- "TenantID: bar"
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`)
|
|
})
|
|
|
|
t.Run("`notifier_headers` change", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
notifier_headers:
|
|
- "TenantID: foo"
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`, `
|
|
name: TestGroup
|
|
notifier_headers:
|
|
- "TenantID: bar"
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`)
|
|
})
|
|
|
|
t.Run("`debug` change", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`, `
|
|
name: TestGroup
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
debug: true
|
|
`)
|
|
})
|
|
t.Run("`update_entries_limit` change", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
`, `
|
|
name: TestGroup
|
|
rules:
|
|
- alert: foo
|
|
expr: sum by(job) (up == 1)
|
|
update_entries_limit: 33
|
|
`)
|
|
})
|
|
}
|
|
|
|
func TestGroupParams(t *testing.T) {
|
|
f := func(t *testing.T, data string, expParams url.Values) {
|
|
t.Helper()
|
|
var g Group
|
|
if err := yaml.Unmarshal([]byte(data), &g); err != nil {
|
|
t.Fatalf("failed to unmarshal: %s", err)
|
|
}
|
|
got, exp := g.Params.Encode(), expParams.Encode()
|
|
if got != exp {
|
|
t.Fatalf("expected to have %q; got %q", exp, got)
|
|
}
|
|
}
|
|
|
|
t.Run("no params", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
rules:
|
|
- alert: ExampleAlertAlwaysFiring
|
|
expr: sum by(job) (up == 1)
|
|
`, url.Values{})
|
|
})
|
|
|
|
t.Run("params", func(t *testing.T) {
|
|
f(t, `
|
|
name: TestGroup
|
|
params:
|
|
nocache: ["1"]
|
|
denyPartialResponse: ["true"]
|
|
rules:
|
|
- alert: ExampleAlertAlwaysFiring
|
|
expr: sum by(job) (up == 1)
|
|
`, url.Values{"nocache": {"1"}, "denyPartialResponse": {"true"}})
|
|
})
|
|
}
|