Alerting: validate mute timings in the alertmanager configuration (#42125)

* Alerting: check for uniqueness of mutetime names

* add some testing

* add name validation

* add root route validation

* add tests for validation

* add check for root route mute_time_intervals

* add duplicate test

* remove useless yaml test

* refactor table test
This commit is contained in:
Jean-Philippe Quéméner 2021-11-23 16:25:20 +01:00 committed by GitHub
parent 3e16abc939
commit cec2d965ec
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2 changed files with 308 additions and 0 deletions

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@ -746,6 +746,9 @@ func (c *Config) UnmarshalJSON(b []byte) error {
if len(c.Route.Match) > 0 || len(c.Route.MatchRE) > 0 {
return fmt.Errorf("root route must not have any matchers")
}
if len(c.Route.MuteTimeIntervals) > 0 {
return fmt.Errorf("root route must not have any mute time intervals")
}
for _, r := range c.InhibitRules {
if err := r.UnmarshalYAML(noopUnmarshal); err != nil {
@ -753,6 +756,33 @@ func (c *Config) UnmarshalJSON(b []byte) error {
}
}
tiNames := make(map[string]struct{})
for _, mt := range c.MuteTimeIntervals {
if mt.Name == "" {
return fmt.Errorf("missing name in mute time interval")
}
if _, ok := tiNames[mt.Name]; ok {
return fmt.Errorf("mute time interval %q is not unique", mt.Name)
}
tiNames[mt.Name] = struct{}{}
}
return checkTimeInterval(c.Route, tiNames)
}
func checkTimeInterval(r *Route, timeIntervals map[string]struct{}) error {
for _, sr := range r.Routes {
if err := checkTimeInterval(sr, timeIntervals); err != nil {
return err
}
}
if len(r.MuteTimeIntervals) == 0 {
return nil
}
for _, mt := range r.MuteTimeIntervals {
if _, ok := timeIntervals[mt]; !ok {
return fmt.Errorf("undefined time interval %q used in route", mt)
}
}
return nil
}

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@ -2,6 +2,7 @@ package definitions
import (
"encoding/json"
"errors"
"io/ioutil"
"strings"
"testing"
@ -405,6 +406,283 @@ email_configs:
}
}
func Test_ConfigUnmashaling(t *testing.T) {
for _, tc := range []struct {
desc, input string
err error
}{
{
desc: "empty mute time name should error",
err: errors.New("missing name in mute time interval"),
input: `
{
"route": {
"receiver": "grafana-default-email"
},
"mute_time_intervals": [
{
"name": "",
"time_intervals": [
{
"times": [
{
"start_time": "00:00",
"end_time": "12:00"
}
]
}
]
}
],
"templates": null,
"receivers": [
{
"name": "grafana-default-email",
"grafana_managed_receiver_configs": [
{
"uid": "uxwfZvtnz",
"name": "email receiver",
"type": "email",
"disableResolveMessage": false,
"settings": {
"addresses": "<example@email.com>"
},
"secureFields": {}
}
]
}
]
}
`,
},
{
desc: "not unique mute time names should error",
err: errors.New("mute time interval \"test1\" is not unique"),
input: `
{
"route": {
"receiver": "grafana-default-email"
},
"mute_time_intervals": [
{
"name": "test1",
"time_intervals": [
{
"times": [
{
"start_time": "00:00",
"end_time": "12:00"
}
]
}
]
},
{
"name": "test1",
"time_intervals": [
{
"times": [
{
"start_time": "00:00",
"end_time": "12:00"
}
]
}
]
}
],
"templates": null,
"receivers": [
{
"name": "grafana-default-email",
"grafana_managed_receiver_configs": [
{
"uid": "uxwfZvtnz",
"name": "email receiver",
"type": "email",
"disableResolveMessage": false,
"settings": {
"addresses": "<example@email.com>"
},
"secureFields": {}
}
]
}
]
}
`,
},
{
desc: "mute time intervals on root route should error",
err: errors.New("root route must not have any mute time intervals"),
input: `
{
"route": {
"receiver": "grafana-default-email",
"mute_time_intervals": ["test1"]
},
"mute_time_intervals": [
{
"name": "test1",
"time_intervals": [
{
"times": [
{
"start_time": "00:00",
"end_time": "12:00"
}
]
}
]
}
],
"templates": null,
"receivers": [
{
"name": "grafana-default-email",
"grafana_managed_receiver_configs": [
{
"uid": "uxwfZvtnz",
"name": "email receiver",
"type": "email",
"disableResolveMessage": false,
"settings": {
"addresses": "<example@email.com>"
},
"secureFields": {}
}
]
}
]
}
`,
},
{
desc: "undefined mute time names in routes should error",
err: errors.New("undefined time interval \"test2\" used in route"),
input: `
{
"route": {
"receiver": "grafana-default-email",
"routes": [
{
"receiver": "grafana-default-email",
"object_matchers": [
[
"a",
"=",
"b"
]
],
"mute_time_intervals": [
"test2"
]
}
]
},
"mute_time_intervals": [
{
"name": "test1",
"time_intervals": [
{
"times": [
{
"start_time": "00:00",
"end_time": "12:00"
}
]
}
]
}
],
"templates": null,
"receivers": [
{
"name": "grafana-default-email",
"grafana_managed_receiver_configs": [
{
"uid": "uxwfZvtnz",
"name": "email receiver",
"type": "email",
"disableResolveMessage": false,
"settings": {
"addresses": "<example@email.com>"
},
"secureFields": {}
}
]
}
]
}
`,
},
{
desc: "valid config should not error",
input: `
{
"route": {
"receiver": "grafana-default-email",
"routes": [
{
"receiver": "grafana-default-email",
"object_matchers": [
[
"a",
"=",
"b"
]
],
"mute_time_intervals": [
"test1"
]
}
]
},
"mute_time_intervals": [
{
"name": "test1",
"time_intervals": [
{
"times": [
{
"start_time": "00:00",
"end_time": "12:00"
}
]
}
]
}
],
"templates": null,
"receivers": [
{
"name": "grafana-default-email",
"grafana_managed_receiver_configs": [
{
"uid": "uxwfZvtnz",
"name": "email receiver",
"type": "email",
"disableResolveMessage": false,
"settings": {
"addresses": "<example@email.com>"
},
"secureFields": {}
}
]
}
]
}
`,
},
} {
t.Run(tc.desc, func(t *testing.T) {
var out Config
err := json.Unmarshal([]byte(tc.input), &out)
require.Equal(t, tc.err, err)
})
}
}
func Test_GettableUserConfigUnmarshaling(t *testing.T) {
for _, tc := range []struct {
desc, input string