Alerting: Display query from grafana-managed alert rules on /api/v1/rules (#45969)

* Aleting: Extract query from alerting rule model for api/v1/rules * more changes and fixtures * appease the linter
2022-03-14 10:39:20 +00:00
parent ecf84be65a
commit a75d4fcbd8
7 changed files with 533 additions and 28 deletions
@@ -0,0 +1,118 @@
+package api
+
+// prometheusQueryModel represents the way we express a prometheus query as part of an alert query.
+// It supports formatting for the refID of the query.
+const prometheusQueryModel = `
+{
+	"exemplar": false,
+	"expr": "vector(1)",
+	"hide": false,
+	"interval": "",
+	"intervalMs": 1000,
+	"legendFormat": "",
+	"maxDataPoints": 43200,
+	"refId": "%s"
+}
+`
+
+// classicConditionsModel represents the way we express a classic condition as part of an alert query.
+// It supports formatting for 1) the refID of the query and 2) the refID of the condition.
+const classicConditionsModel = `
+{
+	"conditions": [{
+		"evaluator": {
+			"params": [0.5],
+			"type": "gt"
+		},
+		"operator": {
+			"type": "and"
+		},
+		"query": {
+			"params": ["%s"]
+		},
+		"reducer": {
+			"params": [],
+			"type": "last"
+		},
+		"type": "query"
+	}],
+	"datasource": {
+		"type": "__expr__",
+		"uid": "-100"
+	},
+	"hide": false,
+	"intervalMs": 1000,
+	"maxDataPoints": 43200,
+	"refId": "%s",
+	"type": "classic_conditions"
+}
+`
+
+// reduceLastExpressionModel represents the way we express reduce to last data point as part of an alert query.
+// It supports formatting for 1) the refID of the query to target and 2) the refID of the condition.
+const reduceLastExpressionModel = `
+{
+	"conditions": [{
+		"evaluator": {
+			"params": [0,0],
+			"type": "gt"
+		},
+		"operator": {
+			"type": "and"
+		},
+		"query": {
+			"params": []
+		},
+		"reducer": {
+			"params": [],
+			"type": "last"
+		},
+		"type": "query"
+	}],
+	"datasource": {
+		"type": "__expr__",
+		"uid": "__expr__"
+	},
+	"expression": "%s",
+	"hide": false,
+	"intervalMs": 1000,
+	"maxDataPoints": 43200,
+	"reducer": "last",
+	"refId": "%s",
+	"type": "reduce"
+}
+`
+
+// reduceLastExpressionModel represents the way we express a math (sum of two refIDs greater than 1) operation of an alert query.
+// It supports formatting for 1) refID of the first operand, 2) refID of the second operand and 3) the refID of the math operation.
+const mathExpressionModel = `
+{
+	"conditions": [{
+		"evaluator": {
+			"params": [0, 0],
+			"type": "gt"
+		},
+		"operator": {
+			"type": "and"
+		},
+		"query": {
+			"params": []
+		},
+		"reducer": {
+			"params": [],
+			"type": "avg"
+		},
+		"type": "query"
+	}],
+	"datasource": {
+		"type": "__expr__",
+		"uid": "__expr__"
+	},
+	"expression": "$%s + $%s \u003e 1",
+	"hide": false,
+	"intervalMs": 1000,
+	"maxDataPoints": 43200,
+	"refId": "%s",
+	"type": "math"
+}
+`