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Loki: Introduce $__auto range variable for metric queries (#72690)

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* Loki: Add  interpolation to backend

* Loki: Replace default variable  with  in frontend

* Loki: Update docs in query builder fro __auto

* Loki: Update test for change default __auto

* Loki: Remove  and  from suggestions as  should be used

* Update docs

* Update pkg/tsdb/loki/parse_query.go

* Fix backend lint

* Fix lint and test

* Update

* Update docs/sources/datasources/loki/template-variables/index.md

Co-authored-by: lwandz13 <126723338+lwandz13@users.noreply.github.com>

* Update public/app/plugins/datasource/loki/querybuilder/operationUtils.ts

Co-authored-by: Matias Chomicki <matyax@gmail.com>

---------

Co-authored-by: lwandz13 <126723338+lwandz13@users.noreply.github.com>
Co-authored-by: Matias Chomicki <matyax@gmail.com>
This commit is contained in:
Ivana Huckova
2023-08-03 16:27:23 +02:00
committed by GitHub
co-authored by lwandz13 Matias Chomicki
parent b1fd399c10
commit 7bb0ff7055
16 changed files with 103 additions and 61 deletions
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pkg/tsdb/loki/parse_query_test.go
+40 -6
View File
@@ -5,6 +5,7 @@ import (
"time"
"github.com/grafana/grafana-plugin-sdk-go/backend"
"github.com/grafana/grafana/pkg/tsdb/loki/kinds/dataquery"
"github.com/stretchr/testify/require"
)
@@ -36,26 +37,59 @@ func TestParseQuery(t *testing.T) {
})
t.Run("interpolate variables, range between 1s and 0.5s", func(t *testing.T) {
expr := "go_goroutines $__interval $__interval_ms $__range $__range_s $__range_ms"
queryType := dataquery.LokiQueryTypeRange
interval := time.Millisecond * 50
step := time.Millisecond * 100
timeRange := time.Millisecond * 750
require.Equal(t, "go_goroutines 50ms 50 1s 1 750", interpolateVariables(expr, interval, timeRange))
require.Equal(t, "go_goroutines 50ms 50 1s 1 750", interpolateVariables(expr, interval, timeRange, queryType, step))
})
t.Run("parsing query model, range below 0.5s", func(t *testing.T) {
expr := "go_goroutines $__interval $__interval_ms $__range $__range_s $__range_ms"
queryType := dataquery.LokiQueryTypeRange
interval := time.Millisecond * 50
step := time.Millisecond * 100
timeRange := time.Millisecond * 250
require.Equal(t, "go_goroutines 50ms 50 0s 0 250", interpolateVariables(expr, interval, timeRange))
require.Equal(t, "go_goroutines 50ms 50 0s 0 250", interpolateVariables(expr, interval, timeRange, queryType, step))
})
t.Run("interpolate variables, curly-braces syntax", func(t *testing.T) {
expr := "go_goroutines ${__interval} ${__interval_ms} ${__range} ${__range_s} ${__range_ms}"
queryType := dataquery.LokiQueryTypeRange
interval := time.Second * 2
step := time.Millisecond * 100
timeRange := time.Second * 50
require.Equal(t, "go_goroutines 2s 2000 50s 50 50000", interpolateVariables(expr, interval, timeRange))
require.Equal(t, "go_goroutines 2s 2000 50s 50 50000", interpolateVariables(expr, interval, timeRange, queryType, step))
})
t.Run("interpolate variables should work with $__auto and instant query type", func(t *testing.T) {
expr := "rate({compose_project=\"docker-compose\"}[$__auto])"
queryType := dataquery.LokiQueryTypeInstant
interval := time.Second * 2
step := time.Millisecond * 100
timeRange := time.Second * 50
require.Equal(t, "rate({compose_project=\"docker-compose\"}[50s])", interpolateVariables(expr, interval, timeRange, queryType, step))
})
t.Run("interpolate variables should work with $__auto and range query type", func(t *testing.T) {
expr := "rate({compose_project=\"docker-compose\"}[$__auto])"
queryType := dataquery.LokiQueryTypeRange
interval := time.Second * 2
step := time.Millisecond * 100
timeRange := time.Second * 50
require.Equal(t, "rate({compose_project=\"docker-compose\"}[100ms])", interpolateVariables(expr, interval, timeRange, queryType, step))
})
t.Run("interpolate variables should return original query if no variables", func(t *testing.T) {
expr := "rate({compose_project=\"docker-compose\"}[10s])"
queryType := dataquery.LokiQueryTypeRange
interval := time.Second * 2
step := time.Millisecond * 100
timeRange := time.Second * 50
require.Equal(t, "rate({compose_project=\"docker-compose\"}[10s])", interpolateVariables(expr, interval, timeRange, queryType, step))
})
}