[v9.4.x] Alerting: Allow pausing alerts from provisioning (#62492)

Alerting: Allow pausing alerts from provisioning (#62263)

* Allow pausing alerts from provisioning

* Update swagger

* Add IsPaused to provision export endpoints

* Add pause field in sample.yml

* Add exception for reset state in first loop iteration of scheduler if rule is paused

* Update provision definition and swagger docs

* Fix provisioning export tests

* Suggestion: Simplify if condition

* Add more context to a comment

(cherry picked from commit 7a465f42a6)

Co-authored-by: Alex Moreno <alexander.moreno@grafana.com>

pkg/services/ngalert/api/tooling/api.json

@@ -194,6 +194,9 @@
     "for": {
      "$ref": "#/definitions/Duration"
     },
+    "isPaused": {
+     "type": "boolean"
+    },
     "labels": {
      "additionalProperties": {
       "type": "string"
@@ -2276,6 +2279,10 @@
      "format": "int64",
      "type": "integer"
     },
+    "isPaused": {
+     "example": false,
+     "type": "boolean"
+    },
     "labels": {
      "additionalProperties": {
       "type": "string"
@@ -3277,6 +3284,7 @@
    "type": "object"
   },
   "URL": {
+   "description": "The general form represented is:\n\n[scheme:][//[userinfo@]host][/]path[?query][#fragment]\n\nURLs that do not start with a slash after the scheme are interpreted as:\n\nscheme:opaque[?query][#fragment]\n\nNote that the Path field is stored in decoded form: /%47%6f%2f becomes /Go/.\nA consequence is that it is impossible to tell which slashes in the Path were\nslashes in the raw URL and which were %2f. This distinction is rarely important,\nbut when it is, the code should use RawPath, an optional field which only gets\nset if the default encoding is different from Path.\n\nURL's String method uses the EscapedPath method to obtain the path. See the\nEscapedPath method for more details.",
    "properties": {
     "ForceQuery": {
      "type": "boolean"
@@ -3312,7 +3320,7 @@
      "$ref": "#/definitions/Userinfo"
     }
    },
-   "title": "URL is a custom URL type that allows validation at configuration load time.",
+   "title": "A URL represents a parsed URL (technically, a URI reference).",
    "type": "object"
   },
   "Userinfo": {
@@ -3616,7 +3624,6 @@
    "type": "object"
   },
   "gettableAlert": {
-   "description": "GettableAlert gettable alert",
    "properties": {
     "annotations": {
      "$ref": "#/definitions/labelSet"
@@ -3672,13 +3679,13 @@
    "type": "object"
   },
   "gettableAlerts": {
-   "description": "GettableAlerts gettable alerts",
    "items": {
     "$ref": "#/definitions/gettableAlert"
    },
    "type": "array"
   },
   "gettableSilence": {
+   "description": "GettableSilence gettable silence",
    "properties": {
     "comment": {
      "description": "comment",
@@ -3733,6 +3740,7 @@
    "type": "array"
   },
   "integration": {
+   "description": "Integration integration",
    "properties": {
     "lastNotifyAttempt": {
      "description": "A timestamp indicating the last attempt to deliver a notification regardless of the outcome.\nFormat: date-time",
@@ -3876,7 +3884,6 @@
    "type": "array"
   },
   "postableSilence": {
-   "description": "PostableSilence postable silence",
    "properties": {
     "comment": {
      "description": "comment",