Elasticsearch: Removed reference to obsolete esVersion value (#65415)

* elastic: removed reference to obsolete esVersion value

* removed unused code

* cleaned up tests

devenv/datasources.yaml

@@ -132,7 +132,6 @@ datasources:
       timeField: "@timestamp"
       logLevelField: level
       logMessageField: line
-      esVersion: 8.1.4
 
   - name: gdev-elasticsearch-filebeat
     type: elasticsearch
@@ -142,7 +141,6 @@ datasources:
     jsonData:
       interval: Daily
       timeField: "@timestamp"
-      esVersion: 8.1.4
       timeInterval: "10s"
       logMessageField: message
       logLevelField: fields.level
@@ -155,7 +153,6 @@ datasources:
     jsonData:
       interval: Daily
       timeField: "@timestamp"
-      esVersion: 8.1.4
       timeInterval: "10s"
 
   - name: gdev-mysql

devenv/datasources_docker.yaml

@@ -76,7 +76,6 @@ datasources:
     jsonData:
       interval: Daily
       timeField: "@timestamp"
-      esVersion: 8.1.4
 
   - name: gdev-elasticsearch-filebeat
     type: elasticsearch
@@ -86,7 +85,6 @@ datasources:
     jsonData:
       interval: Daily
       timeField: "@timestamp"
-      esVersion: 8.1.4
       timeInterval: "10s"
       logMessageField: message
       logLevelField: fields.level
@@ -99,7 +97,6 @@ datasources:
     jsonData:
       interval: Daily
       timeField: "@timestamp"
-      esVersion: 8.1.4
       timeInterval: "10s"
 
   - name: gdev-mysql

docs/sources/administration/provisioning/index.md

@@ -170,7 +170,7 @@ Common settings in the [built-in core data sources]({{< relref "../../datasource
 > **Note:** Data sources tagged with _HTTP\*_ communicate using the HTTP protocol, which includes all core data source plugins except MySQL, PostgreSQL, and MSSQL.
 
 | Name                       | Type    | Data source                                                      | Description                                                                                                                                       |
-| -------------------------- | ------- | ---------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| -------------------------- | ------- | ---------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
 | tlsAuth                    | boolean | _HTTP\*_, MySQL                                                  | Enable TLS authentication using client cert configured in secure json data                                                                        |
 | tlsAuthWithCACert          | boolean | _HTTP\*_, MySQL, PostgreSQL                                      | Enable TLS authentication using CA cert                                                                                                           |
 | tlsSkipVerify              | boolean | _HTTP\*_, MySQL, PostgreSQL, MSSQL                               | Controls whether a client verifies the server's certificate chain and host name.                                                                  |
@@ -184,12 +184,11 @@ Common settings in the [built-in core data sources]({{< relref "../../datasource
 | customQueryParameters      | string  | Prometheus                                                       | Query parameters to add, as a URL-encoded string.                                                                                                 |
 | manageAlerts               | boolean | Prometheus and Loki                                              | Manage alerts via Alerting UI                                                                                                                     |
 | alertmanagerUid            | string  | Prometheus and Loki                                              | UID of Alert Manager that manages Alert for this data source.                                                                                     |
-| esVersion                  | string  | Elasticsearch                                                    | Elasticsearch version (e.g. `7.0.0`, `7.6.1`)                                                                                                                                                                                                                                                                       |
 | timeField                  | string  | Elasticsearch                                                    | Which field that should be used as timestamp                                                                                                      |
 | interval                   | string  | Elasticsearch                                                    | Index date time format. nil(No Pattern), 'Hourly', 'Daily', 'Weekly', 'Monthly' or 'Yearly'                                                       |
 | logMessageField            | string  | Elasticsearch                                                    | Which field should be used as the log message                                                                                                     |
 | logLevelField              | string  | Elasticsearch                                                    | Which field should be used to indicate the priority of the log message                                                                            |
-| maxConcurrentShardRequests | number  | Elasticsearch                                                    | Maximum number of concurrent shard requests that each sub-search request executes per node. Defaults to 5 if esVersion is greater than or equals 7.0.0. When the esVersion is less than 7.0.0 and greater than or equals 5.6.0, then the default value is 256. Option is ignored when esVersion is less than 5.6.0. |
+| maxConcurrentShardRequests | number  | Elasticsearch                                                    | Maximum number of concurrent shard requests that each sub-search request executes per node                                                        |
 | sigV4Auth                  | boolean | Elasticsearch and Prometheus                                     | Enable usage of SigV4                                                                                                                             |
 | sigV4AuthType              | string  | Elasticsearch and Prometheus                                     | SigV4 auth provider. default/credentials/keys                                                                                                     |
 | sigV4ExternalId            | string  | Elasticsearch and Prometheus                                     | Optional SigV4 External ID                                                                                                                        |

docs/sources/datasources/elasticsearch/_index.md

@@ -59,18 +59,6 @@ You must also configure settings specific to the Elasticsearch data source.
 Use the index settings to specify a default for the `time field` and your Elasticsearch index's name.
 You can use a time pattern, such as `YYYY.MM.DD`, or a wildcard for the index name.
 
-### Elasticsearch version
-
-Select the version of your Elasticsearch data source from the version selection dropdown.
-Different versions provide different query compositions and functionalities in the [query editor]({{< relref "./query-editor/" >}}).
-Available Elasticsearch versions are `2.x`, `5.x`, `5.6+`, `6.0+`, `7.0+`, `7.7+`, and `7.10+`.
-
-Grafana assumes you're running the lowest possible version for a specified range.
-This ensures that new features or breaking changes in a future Elasticsearch release don't affect your configuration.
-
-For example, if you run Elasticsearch `7.6.1` and select `7.0+`, and a new feature is made available for Elasticsearch `7.5.0` or newer releases, then a `7.5+` option will be available.
-However, your configuration won't be affected until you explicitly select the new `7.5+` option in your settings.
-
 ### Configure Min time interval
 
 The **Min time interval** setting defines a lower limit for the auto group-by time interval.
@@ -181,7 +169,6 @@ datasources:
     jsonData:
       interval: Daily
       timeField: '@timestamp'
-      esVersion: '7.0.0'
       logMessageField: message
       logLevelField: fields.level
       dataLinks:

docs/sources/developers/http_api/data_source.md

@@ -62,7 +62,6 @@ Content-Type: application/json
      "basicAuth": false,
      "isDefault": false,
      "jsonData": {
-         "esVersion": 5,
          "logLevelField": "",
          "logMessageField": "",
          "maxConcurrentShardRequests": 256,

pkg/tsdb/elasticsearch/client/client.go

@@ -12,7 +12,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/Masterminds/semver"
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
 
 	"github.com/grafana/grafana/pkg/infra/log"
@@ -23,7 +22,6 @@ type DatasourceInfo struct {
 	HTTPClient                 *http.Client
 	URL                        string
 	Database                   string
-	ESVersion                  *semver.Version
 	ConfiguredFields           ConfiguredFields
 	Interval                   string
 	TimeInterval               string
@@ -60,7 +58,7 @@ var NewClient = func(ctx context.Context, ds *DatasourceInfo, timeRange backend.
 	}
 
 	logger := log.New(loggerName).FromContext(ctx)
-	logger.Debug("Creating new client", "version", ds.ESVersion, "configuredFields", fmt.Sprintf("%#v", ds.ConfiguredFields), "indices", strings.Join(indices, ", "))
+	logger.Debug("Creating new client", "configuredFields", fmt.Sprintf("%#v", ds.ConfiguredFields), "indices", strings.Join(indices, ", "))
 
 	return &baseClientImpl{
 		logger:           logger,

pkg/tsdb/elasticsearch/client/client_test.go

@@ -9,7 +9,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/Masterminds/semver"
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
@@ -43,9 +42,6 @@ func TestClient_ExecuteMultisearch(t *testing.T) {
 			rw.WriteHeader(200)
 		}))
 
-		version, err := semver.NewVersion("8.0.0")
-		require.NoError(t, err)
-
 		configuredFields := ConfiguredFields{
 			TimeField:       "testtime",
 			LogMessageField: "line",
@@ -56,7 +52,6 @@ func TestClient_ExecuteMultisearch(t *testing.T) {
 			URL:                        ts.URL,
 			HTTPClient:                 ts.Client(),
 			Database:                   "[metrics-]YYYY.MM.DD",
-			ESVersion:                  version,
 			ConfiguredFields:           configuredFields,
 			Interval:                   "Daily",
 			MaxConcurrentShardRequests: 6,

pkg/tsdb/elasticsearch/elasticsearch.go

@@ -7,7 +7,6 @@ import (
 	"fmt"
 	"strconv"
 
-	"github.com/Masterminds/semver"
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
 	"github.com/grafana/grafana-plugin-sdk-go/backend/datasource"
 	"github.com/grafana/grafana-plugin-sdk-go/backend/instancemgmt"
@@ -44,12 +43,6 @@ func (s *Service) QueryData(ctx context.Context, req *backend.QueryDataRequest)
 
 // separate function to allow testing the whole transformation and query flow
 func queryData(ctx context.Context, queries []backend.DataQuery, dsInfo *es.DatasourceInfo) (*backend.QueryDataResponse, error) {
-	// Support for version after their end-of-life (currently <7.10.0) was removed
-	lastSupportedVersion, _ := semver.NewVersion("7.10.0")
-	if dsInfo.ESVersion.LessThan(lastSupportedVersion) {
-		return &backend.QueryDataResponse{}, fmt.Errorf("support for elasticsearch versions after their end-of-life (currently versions < 7.10) was removed")
-	}
-
 	if len(queries) == 0 {
 		return &backend.QueryDataResponse{}, fmt.Errorf("query contains no queries")
 	}
@@ -84,10 +77,7 @@ func newInstanceSettings(httpClientProvider httpclient.Provider) datasource.Inst
 			return nil, err
 		}
 
-		version, err := coerceVersion(jsonData["esVersion"])
-		if err != nil {
-			return nil, fmt.Errorf("elasticsearch version is required, err=%v", err)
-		}
+		// we used to have a field named `esVersion`, please do not use this name in the future.
 
 		timeField, ok := jsonData["timeField"].(string)
 		if !ok {
@@ -154,7 +144,6 @@ func newInstanceSettings(httpClientProvider httpclient.Provider) datasource.Inst
 			HTTPClient:                 httpCli,
 			Database:                   settings.Database,
 			MaxConcurrentShardRequests: int64(maxConcurrentShardRequests),
-			ESVersion:                  version,
 			ConfiguredFields:           configuredFields,
 			Interval:                   interval,
 			TimeInterval:               timeInterval,
@@ -175,32 +164,3 @@ func (s *Service) getDSInfo(pluginCtx backend.PluginContext) (*es.DatasourceInfo
 
 	return &instance, nil
 }
-
-func coerceVersion(v interface{}) (*semver.Version, error) {
-	versionString, ok := v.(string)
-	if ok {
-		return semver.NewVersion(versionString)
-	}
-
-	versionNumber, ok := v.(float64)
-	if !ok {
-		return nil, fmt.Errorf("elasticsearch version %v, cannot be cast to int", v)
-	}
-
-	// Legacy version numbers (before Grafana 8)
-	// valid values were 2,5,56,60,70
-	switch int64(versionNumber) {
-	case 2:
-		return semver.NewVersion("2.0.0")
-	case 5:
-		return semver.NewVersion("5.0.0")
-	case 56:
-		return semver.NewVersion("5.6.0")
-	case 60:
-		return semver.NewVersion("6.0.0")
-	case 70:
-		return semver.NewVersion("7.0.0")
-	default:
-		return nil, fmt.Errorf("elasticsearch version=%d is not supported", int64(versionNumber))
-	}
-}

pkg/tsdb/elasticsearch/elasticsearch_test.go

@@ -11,50 +11,15 @@ import (
 )
 
 type datasourceInfo struct {
-	ESVersion                  interface{} `json:"esVersion"`
 	TimeField                  interface{} `json:"timeField"`
 	MaxConcurrentShardRequests int64       `json:"maxConcurrentShardRequests"`
 	Interval                   string      `json:"interval"`
 	TimeInterval               string      `json:"timeInterval"`
 }
 
-func TestCoerceVersion(t *testing.T) {
-	t.Run("version is string", func(t *testing.T) {
-		ver := "7.0.0"
-		smvr, err := coerceVersion(ver)
-		require.NoError(t, err)
-		require.NotNil(t, smvr)
-		require.Equal(t, "7.0.0", smvr.String())
-	})
-
-	t.Run("version is int", func(t *testing.T) {
-		testCases := []struct {
-			intVersion    float64
-			stringVersion string
-		}{
-			{intVersion: 2, stringVersion: "2.0.0"},
-			{intVersion: 5, stringVersion: "5.0.0"},
-			{intVersion: 56, stringVersion: "5.6.0"},
-			{intVersion: 60, stringVersion: "6.0.0"},
-			{intVersion: 70, stringVersion: "7.0.0"},
-		}
-
-		for _, tc := range testCases {
-			smvr, err := coerceVersion(tc.intVersion)
-			require.NoError(t, err)
-			require.Equal(t, tc.stringVersion, smvr.String())
-		}
-
-		smvr, err := coerceVersion(12345)
-		require.Error(t, err)
-		require.Nil(t, smvr)
-	})
-}
-
 func TestNewInstanceSettings(t *testing.T) {
 	t.Run("fields exist", func(t *testing.T) {
 		dsInfo := datasourceInfo{
-			ESVersion:                  "7.0.0",
 			TimeField:                  "@timestamp",
 			MaxConcurrentShardRequests: 5,
 		}
@@ -69,91 +34,9 @@ func TestNewInstanceSettings(t *testing.T) {
 		require.NoError(t, err)
 	})
 
-	t.Run("esVersion", func(t *testing.T) {
-		t.Run("correct version", func(t *testing.T) {
-			dsInfo := datasourceInfo{
-				ESVersion:                  5,
-				TimeField:                  "@timestamp",
-				MaxConcurrentShardRequests: 5,
-				Interval:                   "Daily",
-				TimeInterval:               "TimeInterval",
-			}
-
-			settingsJSON, err := json.Marshal(dsInfo)
-			require.NoError(t, err)
-
-			dsSettings := backend.DataSourceInstanceSettings{
-				JSONData: json.RawMessage(settingsJSON),
-			}
-
-			_, err = newInstanceSettings(httpclient.NewProvider())(dsSettings)
-			require.NoError(t, err)
-		})
-
-		t.Run("faulty version int", func(t *testing.T) {
-			dsInfo := datasourceInfo{
-				ESVersion:                  1234,
-				TimeField:                  "@timestamp",
-				MaxConcurrentShardRequests: 5,
-				Interval:                   "Daily",
-				TimeInterval:               "TimeInterval",
-			}
-
-			settingsJSON, err := json.Marshal(dsInfo)
-			require.NoError(t, err)
-
-			dsSettings := backend.DataSourceInstanceSettings{
-				JSONData: json.RawMessage(settingsJSON),
-			}
-
-			_, err = newInstanceSettings(httpclient.NewProvider())(dsSettings)
-			require.EqualError(t, err, "elasticsearch version is required, err=elasticsearch version=1234 is not supported")
-		})
-
-		t.Run("faulty version string", func(t *testing.T) {
-			dsInfo := datasourceInfo{
-				ESVersion:                  "NOT_VALID",
-				TimeField:                  "@timestamp",
-				MaxConcurrentShardRequests: 5,
-				Interval:                   "Daily",
-				TimeInterval:               "TimeInterval",
-			}
-
-			settingsJSON, err := json.Marshal(dsInfo)
-			require.NoError(t, err)
-
-			dsSettings := backend.DataSourceInstanceSettings{
-				JSONData: json.RawMessage(settingsJSON),
-			}
-
-			_, err = newInstanceSettings(httpclient.NewProvider())(dsSettings)
-			require.EqualError(t, err, "elasticsearch version is required, err=Invalid Semantic Version")
-		})
-
-		t.Run("no version", func(t *testing.T) {
-			dsInfo := datasourceInfo{
-				TimeField:                  "@timestamp",
-				MaxConcurrentShardRequests: 5,
-				Interval:                   "Daily",
-				TimeInterval:               "TimeInterval",
-			}
-
-			settingsJSON, err := json.Marshal(dsInfo)
-			require.NoError(t, err)
-
-			dsSettings := backend.DataSourceInstanceSettings{
-				JSONData: json.RawMessage(settingsJSON),
-			}
-
-			_, err = newInstanceSettings(httpclient.NewProvider())(dsSettings)
-			require.EqualError(t, err, "elasticsearch version is required, err=elasticsearch version <nil>, cannot be cast to int")
-		})
-	})
-
 	t.Run("timeField", func(t *testing.T) {
 		t.Run("is nil", func(t *testing.T) {
 			dsInfo := datasourceInfo{
-				ESVersion:                  2,
 				MaxConcurrentShardRequests: 5,
 				Interval:                   "Daily",
 				TimeInterval:               "TimeInterval",
@@ -172,7 +55,6 @@ func TestNewInstanceSettings(t *testing.T) {
 
 		t.Run("is empty", func(t *testing.T) {
 			dsInfo := datasourceInfo{
-				ESVersion:                  2,
 				MaxConcurrentShardRequests: 5,
 				Interval:                   "Daily",
 				TimeField:                  "",

pkg/tsdb/elasticsearch/querydata_test.go

@@ -9,7 +9,6 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/Masterminds/semver"
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
 
 	es "github.com/grafana/grafana/pkg/tsdb/elasticsearch/client"
@@ -49,7 +48,6 @@ func newFlowTestDsInfo(body []byte, statusCode int, requestCallback func(req *ht
 	}
 
 	return &es.DatasourceInfo{
-		ESVersion:                  semver.MustParse("8.5.0"),
 		Interval:                   "Daily",
 		Database:                   "[testdb-]YYYY.MM.DD",
 		ConfiguredFields:           configuredFields,

public/app/plugins/datasource/elasticsearch/components/QueryEditor/index.test.tsx

@@ -8,7 +8,6 @@ import { QueryEditor } from '.';
 
 const noop = () => void 0;
 const datasourceMock = {
-  esVersion: '7.10.0',
   getDatabaseVersion: () => Promise.resolve(null),
 } as ElasticDatasource;
 

public/app/plugins/datasource/elasticsearch/configuration/ConfigEditor.test.tsx

@@ -28,8 +28,6 @@ describe('ConfigEditor', () => {
     const mockOnOptionsChange = jest.fn();
     const options = createDefaultConfigOptions();
     // @ts-ignore
-    delete options.jsonData.esVersion;
-    // @ts-ignore
     delete options.jsonData.timeField;
     delete options.jsonData.maxConcurrentShardRequests;
 
@@ -38,7 +36,6 @@ describe('ConfigEditor', () => {
     expect(mockOnOptionsChange).toHaveBeenCalledWith(
       expect.objectContaining({
         jsonData: expect.objectContaining({
-          esVersion: '8.0.0',
           timeField: '@timestamp',
           maxConcurrentShardRequests: 5,
         }),

public/app/plugins/datasource/elasticsearch/configuration/ElasticDetails.test.tsx

@@ -8,7 +8,7 @@ import { createDefaultConfigOptions } from './mocks';
 describe('ElasticDetails', () => {
   describe('Max concurrent Shard Requests', () => {
     it('should render "Max concurrent Shard Requests" ', () => {
-      render(<ElasticDetails onChange={() => {}} value={createDefaultConfigOptions({ esVersion: '8.2.0' })} />);
+      render(<ElasticDetails onChange={() => {}} value={createDefaultConfigOptions()} />);
       expect(screen.getByLabelText('Max concurrent Shard Requests')).toBeInTheDocument();
     });
   });
@@ -44,31 +44,4 @@ describe('ElasticDetails', () => {
       })
     );
   });
-
-  describe('version change', () => {
-    const tc = { version: '7.10+', maxConcurrentShardRequests: 6, expectedMaxConcurrentShardRequests: 6 };
-
-    const onChangeMock = jest.fn();
-    it(`sets maxConcurrentShardRequests=${tc.expectedMaxConcurrentShardRequests} if version=${tc.version},`, async () => {
-      render(
-        <ElasticDetails
-          onChange={onChangeMock}
-          value={createDefaultConfigOptions({
-            maxConcurrentShardRequests: tc.maxConcurrentShardRequests,
-            esVersion: '7.0.0',
-          })}
-        />
-      );
-
-      const selectEl = screen.getByLabelText('ElasticSearch version');
-
-      await selectEvent.select(selectEl, tc.version, { container: document.body });
-
-      expect(onChangeMock).toHaveBeenCalledWith(
-        expect.objectContaining({
-          jsonData: expect.objectContaining({ maxConcurrentShardRequests: tc.expectedMaxConcurrentShardRequests }),
-        })
-      );
-    });
-  });
 });

public/app/plugins/datasource/elasticsearch/configuration/ElasticDetails.tsx

@@ -1,7 +1,6 @@
 import React from 'react';
-import { valid } from 'semver';
 
-import { DataSourceSettings, SelectableValue, isTruthy } from '@grafana/data';
+import { DataSourceSettings, SelectableValue } from '@grafana/data';
 import { FieldSet, InlineField, Input, Select, InlineSwitch } from '@grafana/ui';
 
 import { ElasticsearchOptions, Interval } from '../types';
@@ -15,24 +14,11 @@ const indexPatternTypes: Array<SelectableValue<'none' | Interval>> = [
   { label: 'Yearly', value: 'Yearly', example: '[logstash-]YYYY' },
 ];
 
-const esVersions: SelectableValue[] = [
-  { label: '7.10+', value: '7.10.0' },
-  { label: '8.x', value: '8.0.0' },
-];
-
 type Props = {
   value: DataSourceSettings<ElasticsearchOptions>;
   onChange: (value: DataSourceSettings<ElasticsearchOptions>) => void;
 };
 export const ElasticDetails = ({ value, onChange }: Props) => {
-  const currentVersion = esVersions.find((version) => version.value === value.jsonData.esVersion);
-  const customOption =
-    !currentVersion && valid(value.jsonData.esVersion)
-      ? {
-          label: value.jsonData.esVersion,
-          value: value.jsonData.esVersion,
-        }
-      : undefined;
   return (
     <>
       <FieldSet label="Elasticsearch details">
@@ -70,28 +56,6 @@ export const ElasticDetails = ({ value, onChange }: Props) => {
           />
         </InlineField>
 
-        <InlineField label="ElasticSearch version" labelWidth={26}>
-          <Select
-            inputId="es_config_version"
-            options={[customOption, ...esVersions].filter(isTruthy)}
-            onChange={(option) => {
-              const maxConcurrentShardRequests = getMaxConcurrenShardRequestOrDefault(
-                value.jsonData.maxConcurrentShardRequests
-              );
-              onChange({
-                ...value,
-                jsonData: {
-                  ...value.jsonData,
-                  esVersion: option.value!,
-                  maxConcurrentShardRequests,
-                },
-              });
-            }}
-            value={currentVersion || customOption}
-            width={24}
-          />
-        </InlineField>
-
         <InlineField label="Max concurrent Shard Requests" labelWidth={26}>
           <Input
             id="es_config_shardRequests"
@@ -208,14 +172,6 @@ const intervalHandler =
     }
   };
 
-function getMaxConcurrenShardRequestOrDefault(maxConcurrentShardRequests: number | undefined): number {
-  if (maxConcurrentShardRequests === 256) {
-    return 5;
-  }
-
-  return maxConcurrentShardRequests || defaultMaxConcurrentShardRequests();
-}
-
 export function defaultMaxConcurrentShardRequests() {
   return 5;
 }

public/app/plugins/datasource/elasticsearch/configuration/mocks.ts

@@ -9,7 +9,6 @@ export function createDefaultConfigOptions(
   return getMockDataSource<ElasticsearchOptions>({
     jsonData: {
       timeField: '@time',
-      esVersion: '7.0.0',
       interval: 'Hourly',
       timeInterval: '10s',
       maxConcurrentShardRequests: 300,

public/app/plugins/datasource/elasticsearch/configuration/utils.ts

@@ -1,23 +1,17 @@
-import { valid } from 'semver';
-
 import { DataSourceSettings } from '@grafana/data';
 
 import { ElasticsearchOptions } from '../types';
-import { coerceESVersion } from '../utils';
 
 import { defaultMaxConcurrentShardRequests } from './ElasticDetails';
 
 export const coerceOptions = (
   options: DataSourceSettings<ElasticsearchOptions, {}>
 ): DataSourceSettings<ElasticsearchOptions, {}> => {
-  const esVersion = coerceESVersion(options.jsonData.esVersion);
-
   return {
     ...options,
     jsonData: {
       ...options.jsonData,
       timeField: options.jsonData.timeField || '@timestamp',
-      esVersion,
       maxConcurrentShardRequests: options.jsonData.maxConcurrentShardRequests || defaultMaxConcurrentShardRequests(),
       logMessageField: options.jsonData.logMessageField || '',
       logLevelField: options.jsonData.logLevelField || '',
@@ -28,8 +22,6 @@ export const coerceOptions = (
 
 export const isValidOptions = (options: DataSourceSettings<ElasticsearchOptions, {}>): boolean => {
   return (
-    // esVersion should be a valid semver string
-    !!valid(options.jsonData.esVersion) &&
     // timeField should not be empty or nullish
     !!options.jsonData.timeField &&
     // maxConcurrentShardRequests should be a number AND greater than 0

public/app/plugins/datasource/elasticsearch/datasource.test.ts

@@ -166,7 +166,7 @@ describe('ElasticDatasource', () => {
       };
       const { ds, fetchMock } = getTestContext({
         data,
-        jsonData: { interval: 'Daily', esVersion: '7.10.0', timeField: '@timestamp' },
+        jsonData: { interval: 'Daily', timeField: '@timestamp' },
       });
 
       ds.getTagValues({ key: 'test' });
@@ -182,7 +182,7 @@ describe('ElasticDatasource', () => {
 
   describe('When testing datasource with index pattern', () => {
     it('should translate index pattern to current day', async () => {
-      const { ds, fetchMock } = getTestContext({ jsonData: { interval: 'Daily', esVersion: '7.10.0' } });
+      const { ds, fetchMock } = getTestContext({ jsonData: { interval: 'Daily' } });
 
       await ds.testDatasource();
 
@@ -221,7 +221,7 @@ describe('ElasticDatasource', () => {
           },
         ],
       };
-      const { ds, fetchMock } = getTestContext({ jsonData: { interval: 'Daily', esVersion: '7.10.0' }, data });
+      const { ds, fetchMock } = getTestContext({ jsonData: { interval: 'Daily' }, data });
 
       let result: DataQueryResponse = { data: [] };
       await expect(ds.query(query)).toEmitValuesWith((received) => {
@@ -303,7 +303,6 @@ describe('ElasticDatasource', () => {
     async function setupDataSource(jsonData?: Partial<ElasticsearchOptions>) {
       jsonData = {
         interval: 'Daily',
-        esVersion: '7.10.0',
         timeField: '@timestamp',
         ...(jsonData || {}),
       };
@@ -394,7 +393,7 @@ describe('ElasticDatasource', () => {
       const query = { ...DATAQUERY_BASE, range, targets };
       const data = { responses: [] };
 
-      const { ds, fetchMock } = getTestContext({ jsonData: { esVersion: '7.10.0' }, data, database: 'test' });
+      const { ds, fetchMock } = getTestContext({ data, database: 'test' });
 
       await expect(ds.query(query)).toEmitValuesWith((received) => {
         expect(received.length).toBe(1);
@@ -453,7 +452,7 @@ describe('ElasticDatasource', () => {
 
     it('should process it properly', async () => {
       const { ds } = getTestContext({
-        jsonData: { interval: 'Daily', esVersion: '7.10.0' },
+        jsonData: { interval: 'Daily' },
         data: {
           took: 1,
           responses: [
@@ -500,7 +499,6 @@ describe('ElasticDatasource', () => {
       const { ds } = getTestContext({
         fetchMockImplementation: () => throwError(response),
         from: undefined,
-        jsonData: { esVersion: '7.10.0' },
       });
 
       const errObject = {
@@ -516,7 +514,7 @@ describe('ElasticDatasource', () => {
 
     it('should properly throw an unknown error', async () => {
       const { ds } = getTestContext({
-        jsonData: { interval: 'Daily', esVersion: '7.10.0' },
+        jsonData: { interval: 'Daily' },
         data: {
           took: 1,
           responses: [
@@ -567,7 +565,7 @@ describe('ElasticDatasource', () => {
 
       const { ds, timeSrv, fetchMock } = getTestContext({
         from: 'now-2w',
-        jsonData: { interval: 'Daily', esVersion: '7.10.0' },
+        jsonData: { interval: 'Daily' },
         fetchMockImplementation: (options) => {
           if (options.url === `${ELASTICSEARCH_MOCK_URL}/asd-${twoDaysBefore}/_mapping`) {
             return of(createFetchResponse(basicResponse));
@@ -588,7 +586,7 @@ describe('ElasticDatasource', () => {
     it('should not retry more than 7 indices', async () => {
       const { ds, timeSrv, fetchMock } = getTestContext({
         from: 'now-2w',
-        jsonData: { interval: 'Daily', esVersion: '7.10.0' },
+        jsonData: { interval: 'Daily' },
         fetchMockImplementation: (options) => {
           return throwError({ status: 404 });
         },
@@ -701,7 +699,6 @@ describe('ElasticDatasource', () => {
       const { ds } = getTestContext({
         data,
         database: 'genuine.es7._mapping.response',
-        jsonData: { esVersion: '7.10.0' },
       });
 
       await expect(ds.getFields()).toEmitValuesWith((received) => {
@@ -732,7 +729,6 @@ describe('ElasticDatasource', () => {
       const { ds } = getTestContext({
         data,
         database: 'genuine.es7._mapping.response',
-        jsonData: { esVersion: '7.10.0' },
       });
 
       await expect(ds.getFields(['number'])).toEmitValuesWith((received) => {
@@ -748,7 +744,6 @@ describe('ElasticDatasource', () => {
       const { ds } = getTestContext({
         data,
         database: 'genuine.es7._mapping.response',
-        jsonData: { esVersion: '7.10.0' },
       });
 
       await expect(ds.getFields(['date'])).toEmitValuesWith((received) => {
@@ -775,7 +770,7 @@ describe('ElasticDatasource', () => {
       const query = { ...DATAQUERY_BASE, range, targets };
       const data = { responses: [] };
 
-      const { ds, fetchMock } = getTestContext({ jsonData: { esVersion: '7.10.0' }, data, database: 'test' });
+      const { ds, fetchMock } = getTestContext({ data, database: 'test' });
 
       await expect(ds.query(query)).toEmitValuesWith((received) => {
         expect(received.length).toBe(1);
@@ -823,7 +818,7 @@ describe('ElasticDatasource', () => {
         ],
       };
 
-      const { ds, fetchMock } = getTestContext({ jsonData: { esVersion: '7.10.0' }, data, database: 'test' });
+      const { ds, fetchMock } = getTestContext({ data, database: 'test' });
 
       const results = await ds.metricFindQuery('{"find": "terms", "field": "test"}');
 
@@ -865,7 +860,7 @@ describe('ElasticDatasource', () => {
 
   describe('query', () => {
     it('should replace range as integer not string', async () => {
-      const { ds } = getTestContext({ jsonData: { interval: 'Daily', esVersion: '7.10.0', timeField: '@time' } });
+      const { ds } = getTestContext({ jsonData: { interval: 'Daily', timeField: '@time' } });
       const postMock = jest.fn((url: string, data) => of(createFetchResponse({ responses: [] })));
       ds['post'] = postMock;
 
@@ -977,25 +972,23 @@ describe('ElasticDatasource', () => {
 });
 
 describe('getMultiSearchUrl', () => {
-  describe('When esVersion >= 7.10.0', () => {
   it('Should add correct params to URL if "includeFrozen" is enabled', () => {
-      const { ds } = getTestContext({ jsonData: { esVersion: '7.10.0', includeFrozen: true, xpack: true } });
+    const { ds } = getTestContext({ jsonData: { includeFrozen: true, xpack: true } });
 
     expect(ds.getMultiSearchUrl()).toMatch(/ignore_throttled=false/);
   });
 
   it('Should NOT add ignore_throttled if "includeFrozen" is disabled', () => {
-      const { ds } = getTestContext({ jsonData: { esVersion: '7.10.0', includeFrozen: false, xpack: true } });
+    const { ds } = getTestContext({ jsonData: { includeFrozen: false, xpack: true } });
 
     expect(ds.getMultiSearchUrl()).not.toMatch(/ignore_throttled=false/);
   });
 
   it('Should NOT add ignore_throttled if "xpack" is disabled', () => {
-      const { ds } = getTestContext({ jsonData: { esVersion: '7.10.0', includeFrozen: true, xpack: false } });
+    const { ds } = getTestContext({ jsonData: { includeFrozen: true, xpack: false } });
 
     expect(ds.getMultiSearchUrl()).not.toMatch(/ignore_throttled=false/);
   });
-  });
 });
 
 describe('enhanceDataFrame', () => {

public/app/plugins/datasource/elasticsearch/datasource.ts

@@ -50,7 +50,7 @@ import { metricAggregationConfig } from './components/QueryEditor/MetricAggregat
 import { defaultBucketAgg, hasMetricOfType } from './queryDef';
 import { trackQuery } from './tracking';
 import { Logs, BucketAggregation, DataLinkConfig, ElasticsearchOptions, ElasticsearchQuery, TermsQuery } from './types';
-import { coerceESVersion, getScriptValue, isSupportedVersion, unsupportedVersionMessage } from './utils';
+import { getScriptValue, isSupportedVersion, unsupportedVersionMessage } from './utils';
 
 export const REF_ID_STARTER_LOG_VOLUME = 'log-volume-';
 // Those are metadata fields as defined in https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-fields.html#_identity_metadata_fields.
@@ -80,7 +80,6 @@ export class ElasticDatasource
   name: string;
   index: string;
   timeField: string;
-  esVersion: string;
   xpack: boolean;
   interval: string;
   maxConcurrentShardRequests?: number;
@@ -109,7 +108,6 @@ export class ElasticDatasource
     const settingsData = instanceSettings.jsonData || ({} as ElasticsearchOptions);
 
     this.timeField = settingsData.timeField;
-    this.esVersion = coerceESVersion(settingsData.esVersion);
     this.xpack = Boolean(settingsData.xpack);
     this.indexPattern = new IndexPattern(this.index, settingsData.interval);
     this.interval = settingsData.timeInterval;

public/app/plugins/datasource/elasticsearch/mocks.ts

@@ -41,7 +41,6 @@ export function createElasticDatasource(
     url: '',
     jsonData: {
       timeField: '',
-      esVersion: '',
       timeInterval: '',
       ...jsonData,
     },

public/app/plugins/datasource/elasticsearch/types.ts

@@ -39,7 +39,8 @@ export type Interval = 'Hourly' | 'Daily' | 'Weekly' | 'Monthly' | 'Yearly';
 
 export interface ElasticsearchOptions extends DataSourceJsonData {
   timeField: string;
-  esVersion: string;
+  // we used to have a field named `esVersion` in the past,
+  // please do not use that name in the future.
   xpack?: boolean;
   interval?: Interval;
   timeInterval: string;

public/app/plugins/datasource/elasticsearch/utils.test.ts

@@ -1,4 +1,4 @@
-import { removeEmpty, coerceESVersion } from './utils';
+import { removeEmpty } from './utils';
 
 describe('removeEmpty', () => {
   it('Should remove all empty', () => {
@@ -33,26 +33,4 @@ describe('removeEmpty', () => {
 
     expect(removeEmpty(original)).toStrictEqual(expectedResult);
   });
-
-  it('should correctly coerce the version info', () => {
-    // valid string
-    expect(coerceESVersion('8.1.3')).toBe('8.1.3');
-
-    // invalid string
-    expect(coerceESVersion('haha')).toBe('8.0.0');
-
-    // known number
-    expect(coerceESVersion(2)).toBe('2.0.0');
-    expect(coerceESVersion(5)).toBe('5.0.0');
-    expect(coerceESVersion(56)).toBe('5.6.0');
-    expect(coerceESVersion(60)).toBe('6.0.0');
-    expect(coerceESVersion(70)).toBe('7.0.0');
-    expect(coerceESVersion(8)).toBe('8.0.0');
-
-    // unknown number
-    expect(coerceESVersion(42)).toBe('8.0.0');
-
-    // undefined
-    expect(coerceESVersion(undefined)).toBe('8.0.0');
-  });
 });

public/app/plugins/datasource/elasticsearch/utils.ts

@@ -1,4 +1,4 @@
-import { valid, gte, SemVer } from 'semver';
+import { gte, SemVer } from 'semver';
 
 import { isMetricAggregationWithField } from './components/QueryEditor/MetricAggregationsEditor/aggregations';
 import { metricAggregationConfig } from './components/QueryEditor/MetricAggregationsEditor/utils';
@@ -91,32 +91,6 @@ export const convertOrderByToMetricId = (orderBy: string): string | undefined =>
 export const getScriptValue = (metric: MetricAggregationWithInlineScript) =>
   (typeof metric.settings?.script === 'object' ? metric.settings?.script?.inline : metric.settings?.script) || '';
 
-/**
- * Coerces the version to a valid semver string.
- * It takes care of also converting from the legacy format (numeric) to the new one.
- * @param version
- */
-export const coerceESVersion = (version: string | number | undefined): string => {
-  if (typeof version === 'string') {
-    return valid(version) || '8.0.0';
-  }
-
-  switch (version) {
-    case 2:
-      return '2.0.0';
-    case 5:
-      return '5.0.0';
-    case 56:
-      return '5.6.0';
-    case 60:
-      return '6.0.0';
-    case 70:
-      return '7.0.0';
-    default:
-      return '8.0.0';
-  }
-};
-
 export const isSupportedVersion = (version: SemVer): boolean => {
   if (gte(version, '7.10.0')) {
     return true;