feat(v2): function totals recording rules

api/openapiv2/gen/phlare.swagger.json

@@ -1641,6 +1641,13 @@
         }
       }
     },
+    "v1MetricType": {
+      "type": "string",
+      "enum": [
+        "TOTAL"
+      ],
+      "default": "TOTAL"
+    },
     "v1Point": {
       "type": "object",
       "properties": {
@@ -2006,6 +2013,9 @@
           "type": "string",
           "format": "int64",
           "description": "The observed generation of this recording rule. This value should be\nprovided when making updates to this record, to avoid conflicting\nconcurrent updates."
+        },
+        "stacktraceFilter": {
+          "$ref": "#/definitions/v1StacktraceFilter"
         }
       }
     },
@@ -2301,6 +2311,25 @@
       },
       "description": "StackTraceSelector is used for filtering stack traces by locations."
     },
+    "v1StacktraceFilter": {
+      "type": "object",
+      "properties": {
+        "functionName": {
+          "$ref": "#/definitions/v1StacktraceFilterFunctionName"
+        }
+      }
+    },
+    "v1StacktraceFilterFunctionName": {
+      "type": "object",
+      "properties": {
+        "functionName": {
+          "type": "string"
+        },
+        "metricType": {
+          "$ref": "#/definitions/v1MetricType"
+        }
+      }
+    },
     "v1StacktraceSample": {
       "type": "object",
       "properties": {

api/settings/v1/recording_rules.proto

@@ -39,6 +39,8 @@ message UpsertRecordingRuleRequest {
   // The observed generation of this recording rule. If this value does not
   // match the generation stored in the database, this upsert will be rejected.
   int64 generation = 6;
+
+  optional StacktraceFilter stacktrace_filter = 7;
 }
 
 message UpsertRecordingRuleResponse {
@@ -79,6 +81,25 @@ message RecordingRule {
   // provided when making updates to this record, to avoid conflicting
   // concurrent updates.
   int64 generation = 7;
+
+  optional StacktraceFilter stacktrace_filter = 8;
+}
+
+message StacktraceFilter {
+  optional StacktraceFilterFunctionName function_name = 1;
+
+  // StacktraceFilterFunctionNameRegExp functionNameRegExp = 2;
+}
+
+enum MetricType {
+  TOTAL = 0;
+
+  // SELF = 1;
+}
+
+message StacktraceFilterFunctionName {
+  string function_name = 1;
+  MetricType metric_type = 2;
 }
 
 message RecordingRuleStore {
@@ -89,6 +110,7 @@ message RecordingRuleStore {
   repeated string group_by = 5;
   repeated types.v1.LabelPair external_labels = 6;
   int64 generation = 7;
+  optional StacktraceFilter stacktrace_filter = 8;
 }
 
 message RecordingRulesStore {