[Synthetics] Improve synthetics alerting (elastic#186585)

## Summary

Fixes elastic#175298

Improve synthetics alerting !!

User will be able to create custom synthetics status alert by defining
three kind of criteria

### Monitor is down over last consective checks with threshold

<img width="639" alt="image"
src="https://github.com/elastic/kibana/assets/3505601/390da238-f7f2-4eb0-9606-3279b3199fdf">

### From Locations threshold

Will be considered down only when from defined number of locations

<img width="618" alt="image"
src="https://github.com/elastic/kibana/assets/3505601/24741a10-0880-4247-9048-8ce03df25bf5">


### Over time with checks threshold just like uptime custom status alert

<img width="631" alt="image"
src="https://github.com/elastic/kibana/assets/3505601/64e1c808-8d4b-4dd0-b794-eb7f4e5d1e6b">

---------

Co-authored-by: kibanamachine <[email protected]>
Co-authored-by: Dominique Clarke <[email protected]>
Co-authored-by: Elastic Machine <[email protected]>
Co-authored-by: Maryam Saeidi <[email protected]>
Co-authored-by: Justin Kambic <[email protected]>

.github/CODEOWNERS

@@ -656,6 +656,7 @@ x-pack/plugins/observability_solution/observability_onboarding/e2e @elastic/obs-
 x-pack/plugins/observability_solution/observability_onboarding @elastic/obs-ux-logs-team @elastic/obs-ux-onboarding-team
 x-pack/plugins/observability_solution/observability @elastic/obs-ux-management-team
 x-pack/plugins/observability_solution/observability_shared @elastic/observability-ui
+x-pack/packages/observability/synthetics_test_data @elastic/obs-ux-management-team
 x-pack/packages/observability/observability_utils @elastic/observability-ui
 x-pack/test/security_api_integration/plugins/oidc_provider @elastic/kibana-security
 test/common/plugins/otel_metrics @elastic/obs-ux-infra_services-team

package.json

@@ -689,6 +689,7 @@
     "@kbn/observability-onboarding-plugin": "link:x-pack/plugins/observability_solution/observability_onboarding",
     "@kbn/observability-plugin": "link:x-pack/plugins/observability_solution/observability",
     "@kbn/observability-shared-plugin": "link:x-pack/plugins/observability_solution/observability_shared",
+    "@kbn/observability-synthetics-test-data": "link:x-pack/packages/observability/synthetics_test_data",
     "@kbn/observability-utils": "link:x-pack/packages/observability/observability_utils",
     "@kbn/oidc-provider-plugin": "link:x-pack/test/security_api_integration/plugins/oidc_provider",
     "@kbn/open-telemetry-instrumented-plugin": "link:test/common/plugins/otel_metrics",

packages/kbn-alerts-as-data-utils/src/schemas/generated/observability_uptime_schema.ts

@@ -88,13 +88,15 @@ const ObservabilityUptimeAlertOptional = rt.partial({
       value: schemaStringArray,
     })
   ),
-  'location.id': schemaString,
-  'location.name': schemaString,
+  'location.id': schemaStringArray,
+  'location.name': schemaStringArray,
   'monitor.id': schemaString,
   'monitor.name': schemaString,
+  'monitor.state.id': schemaString,
   'monitor.tags': schemaStringArray,
   'monitor.type': schemaString,
-  'observer.geo.name': schemaString,
+  'observer.geo.name': schemaStringArray,
+  'observer.name': schemaStringArray,
   'tls.server.hash.sha256': schemaString,
   'tls.server.x509.issuer.common_name': schemaString,
   'tls.server.x509.not_after': schemaDate,

tsconfig.base.json

@@ -1306,6 +1306,8 @@
       "@kbn/observability-plugin/*": ["x-pack/plugins/observability_solution/observability/*"],
       "@kbn/observability-shared-plugin": ["x-pack/plugins/observability_solution/observability_shared"],
       "@kbn/observability-shared-plugin/*": ["x-pack/plugins/observability_solution/observability_shared/*"],
+      "@kbn/observability-synthetics-test-data": ["x-pack/packages/observability/synthetics_test_data"],
+      "@kbn/observability-synthetics-test-data/*": ["x-pack/packages/observability/synthetics_test_data/*"],
       "@kbn/observability-utils": ["x-pack/packages/observability/observability_utils"],
       "@kbn/observability-utils/*": ["x-pack/packages/observability/observability_utils/*"],
       "@kbn/oidc-provider-plugin": ["x-pack/test/security_api_integration/plugins/oidc_provider"],

x-pack/packages/observability/synthetics_test_data/README.md

@@ -0,0 +1,3 @@
+# @kbn/observability-synthetics-test-data
+
+Provides utilities to generate synthetics test data

x-pack/packages/observability/synthetics_test_data/index.ts

@@ -0,0 +1,8 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export { makeUpSummary, makeDownSummary } from './src/make_summaries';

x-pack/packages/observability/synthetics_test_data/jest.config.js

@@ -0,0 +1,12 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+module.exports = {
+  preset: '@kbn/test',
+  rootDir: '../../../..',
+  roots: ['<rootDir>/x-pack/packages/observability/synthetics_test_data'],
+};

x-pack/packages/observability/synthetics_test_data/kibana.jsonc

@@ -0,0 +1,5 @@
+{
+  "type": "shared-common",
+  "id": "@kbn/observability-synthetics-test-data",
+  "owner": "@elastic/obs-ux-management-team",
+}

x-pack/packages/observability/synthetics_test_data/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "@kbn/observability-synthetics-test-data",
+  "descriptio": "Utils to generate observability synthetics test data",
+  "author": "UX Management",
+  "private": true,
+  "version": "1.0.0",
+  "license": "Elastic License 2.0"
+}